packages by category

Packages by category

Categories: (4), "Distributed Computing" (1), - (1), .NET (9), Accelerate (27), AccessAnalyzer (1), Accessibility (4), Accounting (1), ACME (55), ACMPCA (1), Actors (2), Adjunctions (2), ADSB (5), Aerospace (15), Aeson (4), Agda (1), Agent (1), AI (132), AIOps (1), Algebra (70), Algebra Uniform (1), Algorithm (9), Algorithm Visualization (2), Algorithmic Music Composition (1), Algorithms (143), Amazon (1), AmazonMQ (1), Amplify (1), AmplifyUIBuilder (1), Amqp (1), Anatomy (1), Animation (6), ANSI (1), AOP (2), API (47), ApiGateway (1), ApiGatewayV2 (1), AppConfig (1), AppFlow (1), AppIntegrations (1), Apple (3), Application (34), Application Server (2), ApplicationAutoScaling (1), ApplicationInsights (1), ApplicationSignals (1), Applicative (2), AppMesh (1), AppRunner (1), AppStream (1), AppSync (1), AppTest (1), APS (1), Archaeoinformatics (1), Archive (9), ARCRegionSwitch (1), ARCZonalShift (1), Argumentation (4), Arithmetic (1), Array (16), Arrows (10), Artificial Intelligence (2), Arxiv (2), ASCII (1), ASK (1), ASP (1), Aspect Oriented Programming (2), Assembler (1), AST (1), Astrology (1), Astronomy (3), Athena (1), Atom (1), ATS (8), Attoparsec (3), Attribute Grammars (1), Audio (17), AuditManager (1), Authentication (15), Automatic Music Generation (1), Automation (3), AutoScaling (1), AutoScalingPlans (1), Avers (4), Aviation (27), AWS (651), Azure (1), B2BI (1), Backup (4), BackupGateway (1), Barcode (1), Base (2), Batch (1), BCMDataExports (1), Bedrock (1), BedrockAgentCore (1), Benchmark (2), Benchmarking (23), Big Data (2), Billing (1), BillingConductor (1), Binary (5), Bindings (85), Bio (8), Bioinformatics (131), Bit (11), Bit Vectors (13), Bitcoin (21), Bits (1), Blockchain (9), Blog (1), Book (1), Browser (9), BSD (2), BSD3 (10), Bsparse (1), Budgets (1), Build (10), Build Tool (3), Builders (6), Building (6), Bundle (2), Business (8), Bytes (1), ByteString (8), ByteStrings (1), BZip (1), C (6), C# (1), Cabal (4), Cache (7), Caching (2), Calligraphy (2), CAPTCHA (1), Cardano (9), Cashflow (1), Cassandra (1), Cast (1), Categories (10), Category (5), Catgirls (1), CE (1), CertificateManager (1), CGI (1), Chaos Music (1), Charts (5), Chat (2), Chatbot (1), Chemistry (12), Chess Engine (1), CHs (1), CI (5), Classes (1), Classification (4), Clckwrks (12), CleanRooms (1), CleanRoomsML (1), CLI (64), CLI Tool (8), ClickHouse (2), Client (10), Clipboard (1), Closure (1), Cloud (320), Cloud Haskell (5), Cloud9 (1), Cloudflare (1), CloudFormation (1), CloudFront (1), CloudTrail (1), CloudWatch (1), CLR (6), Clustering (7), CmdLineArgs (1), Code Analysis (1), Code Competitions (1), Code Generation (31), Code-Generator (1), CodeArtifact (1), CodeBuild (1), Codec (223), CodeCommit (1), CodeConnections (1), Codecs (14), CodeDeploy (1), Codegen (8), CodeGuruProfiler (1), CodeGuruReviewer (1), CodePipeline (1), CodeQuality (1), CodeStar (1), CodeStarConnections (1), CodeStarNotifications (1), Coerce (1), Cognito (1), Combinatorics (3), Combinators (24), Command Line (14), Command Line Tool (5), Command Line Tools (8), CommandLine (4), Commerce (1), Commercial (2), Common-Parts (1), Comonad (4), Comonads (20), Compatibility (17), Compilation (1), Compiler (72), Compiler Plugin (20), Compiler Plugins (1), Compilers (9), Compilers/Interpreters (148), Composite (9), Composition (11), Comprehend (1), Compression (37), Computational Geometry (2), Computer Algebra (1), Concourse (1), Concurrency (278), Concurrent (14), Conduit (77), Config (3), Configuration (78), Connect (1), ConnectCampaigns (1), ConnectCampaignsV2 (1), Console (102), Constraint (1), Constraints (24), Consul (1), Containers (7), Contract (1), Contracts (1), Contravariant (5), Control (897), Control Language (1), Control.Monad (1), Control.Parallel.Eden (1), ControlTower (1), Convenience (1), Conversion (9), Conversions (1), CouchDB (1), Covenant (1), CPP (1), CRDT (1), Criu (2), Cron (1), Crosswords (1), Crypto (32), Cryptocurrency (1), Cryptography (237), CSharp (1), CSS (2), CsSyd (1), CSV (24), Culinary (1), CUR (1), Cursor (1), CustomerProfiles (1), CustomSetup (2), Data (2676), Data Conduit (1), Data Control (2), Data Flow (3), Data Mining (28), Data Network (1), Data Science (11), Data Structure (3), Data Structures (354), Data Text JSON YAML Pandoc (1), Data Text Uniform (2), Data-structures (1), Database (646), Database Design (1), Database Driver (1), Database Testing Web (4), Databases (6), DataBrew (1), Datadog (1), Dataflow (2), Datamining (3), DataPipeline (1), DataSync (2), DataZone (1), Date (3), DAX (1), Deadline (1), Debian (5), Debug (53), Debuggers (1), Debugging (6), Decoding (1), Decompiler (1), Deep Learning (2), Default (3), Delay (1), DeltaQ (2), Demo (7), Dependency Injection (2), Dependent Types (62), Derive-monoid (1), Deriving (1), Desktop (21), Desktop Environment (5), Detective (1), Development (954), Development Web (1), DevOps (6), DevOpsGuru (1), DFINITY (1), Dhall (10), Dhall Pandoc (1), Diagnostics (2), Diagram (2), Diagrams (1), Diffing (1), Digest (2), Dijkstra (1), Directory (2), DirectoryService (1), Disassembler (4), Distributed Computing (64), Distributed Systems (9), Distributed-Computing (2), Distribution (164), DLM (1), DMS (1), DNS (2), DocDB (1), DocDBElastic (1), Docker (7), Documentation (34), Domain Specific Language (1), Download Manager (2), DSL (13), DSQL (1), Dynamic Programming (1), DynamoDB (1), EBNF (1), EC2 (1), ECR (1), ECS (2), Eden (3), Editing (1), Editor (21), Education (33), Educational (2), Effect (33), Effectful (1), Effects (6), Efficient XML Pretty-printer (1), EFS (1), EKS (1), ElastiCache (1), ElasticBeanstalk (1), ElasticLoadBalancing (1), ElasticLoadBalancingV2 (1), Elasticsearch (1), Electrs (1), Elliptic Curves (1), Elm (7), Emacs (1), Email (16), Embedded (40), EMR (1), EMRContainers (1), EMRServerless (1), Encoding (1), EntityResolution (1), Enumerator (33), Envars (1), Environment (4), Error (1), Error Exception Uniform (1), Error Handling (33), Error Reporting (1), Eternity (1), Eth (1), Ethereum (8), ETL (1), Eval.so (1), Event-sourcing (1), Eventing (6), Eventloop (1), Events (1), EventSchemas (1), Eventsourcing (20), Eventstore (1), Evidently (1), EVS (1), Example (2), Exception (2), Exceptions (13), Executable (2), Experiment (2), Experimental (4), Extension (10), Faas (1), Factory (1), Factual (2), Failure (26), Fake (2), FakeData (2), Fay (10), FCM (1), Fedora (3), Feed (1), FFI (150), FFI Tools (10), File (8), File Manager (3), FilePath (3), Filesystem (44), Filter (2), Finance (85), Finance Network Bitcoin (1), Financial (2), Find (1), FinSpace (1), FIS (1), Fitness (1), Flatpak (2), Flight (1), Flink (1), FMS (1), Folding (1), Font (5), Forecast (1), Foreign (121), Foreign Binding (7), Formal Languages (13), Formal Methods (44), Format (3), Formatting (2), Foundation (2), Fractals (1), Framework (6), FraudDetector (1), FRP (111), FSM (1), FSx (1), Functions (10), Functors (11), Futhark (5), Futures (1), Fuzzy (1), Game (305), Game Engine (55), GameLift (1), Games (7), Gateway (1), Geckodriver (1), Gemini (8), Genealogy (2), General (4), Generative Music Grammars (1), Generic (5), Generics (147), Gentoo (1), Geo (2), Geography (16), Geometry (25), Geospatial (1), GHC (33), GIS (1), GIS Programs (1), Git (16), GitHub (6), GiveYouAHead (2), GlobalAccelerator (1), Glue (1), Go (1), Google (189), Google Cloud (1), Gps (1), GPU (14), Grafana (1), Graph (8), Graphics (691), GraphQL (14), Graphs (48), Greengrass (1), GreengrassV2 (1), Groundhog (1), GroundStation (1), Groups (2), GRPC (2), GuardDuty (1), GUI (83), Hakyll (3), HAM (2), Happstack (17), Hardware (77), Hash (10), Haskell (16), Haskell Admin (2), Haskell2010 (3), Haskell2020 (1), Haskell98 (2), Hasql (22), HATEOAS (1), Health (2), Healthcare (1), HealthImaging (1), HealthLake (1), Help (2), Heuristics (2), Hie (2), HKD (3), HLS (2), HNum (1), Hspec (2), HTML (31), HTTP (11), Hxt (1), Hydraulics (1), Hydrology (1), Hypermedia (3), I18n (2), I2C (2), IAM (1), IDE (18), Identification (2), IdentityStore (1), IDL (2), IHP (15), Image (30), Image Processing (2), Image Viewer (3), ImageBuilder (1), Images (1), In-other-words (1), Indexed (1), Infrastructure (1), Inspection (1), Inspector (1), InspectorV2 (1), Instances (1), Integration (2), Interaction (2), Interactive (1), Interfaces (9), InternetMonitor (1), Interpolation (5), Interpreter (2), Interpreters (3), Interval (1), Invoicing (1), IO (11), IO-Streams (21), IoC (1), IoT (2), IoTAnalytics (1), IoTCoreDeviceAdvisor (1), IoTEvents (1), IoTFleetHub (1), IoTFleetWise (1), IoTSiteWise (1), IoTThingsGraph (1), IoTTwinMaker (1), IoTWireless (1), IRC (12), IRC Client (2), IRI (1), Iteratee (1), IVS (1), IVSChat (1), J (1), Japanese Natural Language Processing (1), Java (15), JavaScript (37), JSON (123), JSON-RPC (1), JSON5 (1), JSX (1), JVM (16), Kafka (2), KafkaConnect (1), Kendra (1), KendraRanking (1), Kerf (1), Ketchup (1), Keynote (1), Keyword Extractor (1), Kinesis (1), KinesisAnalytics (1), KinesisAnalyticsV2 (1), KinesisFirehose (1), KinesisVideo (1), KML (1), KMS (1), Korean (1), LakeFormation (1), Lalr (1), Lambda (1), Lambda Cube (1), LambdaCalculus (2), Language (818), Language Tools (1), Language.Nix (2), Languages (4), LaTeX (7), LaunchWizard (1), Lazy (1), Learning (1), Learning Environments (1), Learning Haskell (1), Lens (19), Lenses (58), Lex (1), Lexer (3), Lexers (1), Lexing (1), Lib (3), Library (70), LicenseManager (1), Lightning (3), Lightsail (1), Lilypond (1), Linear Algebra (3), Linear Haskell (1), Linear Programming (1), LinearAlgebra (2), Linguistics (8), Linnet (3), Linux (5), Linux Desktop (1), Lisp (1), List (21), Little Game (1), Live Coding (7), Llama (1), LLM (3), Local Search (2), Location (1), Log (1), Logger (1), Logging (75), Logic (44), Logic Programming (5), Logs (1), Logstash (1), LookoutEquipment (1), LookoutMetrics (1), LookoutVision (1), LruCache (1), LUA (1), M2 (1), Machine Learning (85), Machine Vision (3), Machine-learning (1), Machines (3), Macie (1), Macros (1), Mail (5), Managed Functions (1), ManagedBlockchain (1), Manatee (17), Map (1), MapReduce (2), Markdown (2), Math (778), Mathematics (23), Maths (9), Matrix (1), MCP (1), Media (21), MediaConnect (1), MediaConvert (1), MediaLive (1), MediaPackage (1), MediaPackageV2 (1), MediaStore (1), MediaTailor (1), Medical (2), Megaparsec (1), Memoization (3), Memory (8), MemoryDB (1), Message-Oriented (1), Message-Oriented Middleware (5), Messaging (1), Meta (1), Metalanguage (1), Metaprogramming (1), Metrics (13), Microcontroller (4), Microservice (1), Middleware (3), MIDI (1), Minecraft (2), Miscellaneous (1), Miso (4), Mit (1), Mobile (6), Model (5), Model Learning (2), Modelling (1), Modules (1), Monad (26), Monadic Regions (12), MonadIO (1), Monads (99), Money (6), Monitoring (26), MPA (1), Mptcp (2), MSK (1), Mtl (1), Multimedia (3), Multimedia Player (2), Mumeric.Statistics (1), Murmur (1), Music (111), MusicBrainz (1), Mutable State (4), MWAA (1), MySQL (1), N2O (4), NA (1), Naqsha (1), Natural Language (2), Natural Language Processing (93), Natural-language-processing (2), Neovim (8), Neptune (1), NeptuneGraph (1), Net (3), Network (1022), Network API (1), Network APIs (18), Network Control (1), Network.HTTP (2), NetworkAPI (1), NetworkAPIs (1), NetworkFirewall (1), Networking (16), NetworkManager (1), Nix (45), NLP (10), Noise (3), Non-determinism (2), None (1), NonEmpty (1), Notifications (1), NotificationsContacts (1), Ntrol (1), Number Theory (17), Numbers (2), Numeric (102), Numerical (77), Numerics (3), Oam (1), OAuth (2), Object Storage (1), Observability (22), ObservabilityAdmin (1), OCaml (2), Ocilib (1), ODB (1), ODPI-C (1), Office (1), OGC (1), Omics (1), OOP (1), OpenAPI (6), Opengl (2), OpenLayers (1), OpenSearchServerless (1), OpenSearchService (1), OpenTelemetry (40), Operating System (4), Operations (2), OpsWorks (1), Optics (21), Optimisation (21), Optimization (24), Options (17), Oracle (2), Organizations (1), Orphan Instances (1), OSIS (1), Other (27), OverloadeLabels (1), Package Management (6), Package.Category (1), Packaging (2), PagerDuty (1), Pandoc (2), Panorama (1), Parallel (2), Parallelism (39), Parry (1), Parser (30), Parser Builder (1), Parser Combinators (2), ParserCombinators (1), Parsers (11), Parsing (282), Password (6), Path (1), Pattern (4), Pattern Classification (2), Pattern Recognition (1), PaymentCryptography (1), Payments (5), PCAConnectorAD (1), PCAConnectorSCEP (1), PCS (1), PDF (10), PDF Latex (1), PDF Viewer (1), Performance (11), Permutations (1), Persistent (2), PersonalGrowth (1), Personalize (1), Phantom Types (5), Phishing (1), PHP (1), Physics (40), Picture (1), Pinboard (1), Pinpoint (1), PinpointEmail (1), Pipes (57), PL/SQL Tools (1), Plaid (1), Planning (1), Plotting (2), Plugin (15), Plugins (3), Poker (3), Politic (5), Polymorphism (4), Polysemy (16), Polysemy Filesystem (2), Polysemy Vinyl (1), Portal (1), Possehl-Analytics (7), PostgreSQL (45), Potoki (3), Prelude (103), Preprocessor (3), Presentation (1), Pretty Printer (24), Pretty-printing (1), Prettyprinter (1), Primitive (4), Probability (3), Process (1), Process Manager (1), Productivity (5), Profiling (24), Profunctors (5), Program (8), Program Transformation (2), Programming Uniform (1), Project (18), Project Management (2), Prompt (1), Propagators (1), Proto (1), Protocol (18), Protocols (1), Proton (1), Proxies (1), PSP (1), Ptr (2), Pugs (8), Pup-Events (5), PureScript (2), PVP (1), Python (1), QBusiness (1), QL (1), QLDB (1), QR (2), QualifiedDo (1), Quality (1), Quant (1), Quantum (3), Quantum Computing (1), QuasiQuotes (7), QuickCheck (4), QuickSight (1), Quipper (9), Qux (2), Raaz (1), Rabbitmq (1), Radio (2), RAKE (1), RAM (1), Random (23), Raphics (1), Raspberrypi (3), Raw (2), Rbin (1), RDF (2), RDS (1), Reactive (10), Reactivity (39), Record (1), Records (45), Recursion (16), Redis (5), Redshift (1), RedshiftServerless (1), Refactoring (6), RefactorSpaces (1), Reflection (12), Reflex (6), Regex (8), Reinforcement Learning (1), Rekognition (1), Relational Algebra (1), Relaxng (1), Relude (1), Remote Management (7), REPL (3), ResilienceHub (1), ResourceExplorer2 (1), ResourceGroups (1), Resources (3), REST (1), Reverse Engineering (4), Rewriting (2), RFC (1), RoboMaker (1), Robotics (8), Roles (1), RolesAnywhere (1), Rounding (1), Route53 (1), Route53Profiles (1), Route53RecoveryControl (1), Route53RecoveryReadiness (1), Route53Resolver (1), RPC (2), RSS (3), RSS/Atom Reader (1), RTBFabric (1), Ruby (1), RUM (1), Rust (1), S3 (1), S3Express (1), S3ObjectLambda (1), S3Outposts (1), S3Tables (1), Saas (2), Safe (5), SageMaker (1), Sample Code (2), Sast (1), Scene (1), Schedule (1), Scheduler (1), Scheduling (6), Schema (4), Science (18), Scientific (1), Scientific Simulation (2), Scotty (2), Screencast (1), Screensaver (1), SCRIPT (1), Scripting (11), SDB (1), SDR (1), Search (15), SecretsManager (1), Securitisation (1), Security (56), SecurityHub (1), SecurityLake (1), Selective (1), Selenium (3), Semantic Web (3), Semigroupoids (1), Semigroups (1), SEO (1), Serialization (39), Servant (75), Server (2), Serverless (1), Service (5), ServiceCatalog (1), ServiceCatalogAppRegistry (1), ServiceDiscovery (1), Services (17), SES (1), Set Theory (1), Setup (2), Shake (13), Shell (4), Shield (1), Si5351 (1), Signatures (1), Signer (1), Silk (1), Silly Tool (1), SIMD (3), Simple (7), SimSpaceWeaver (1), Simulation (19), Singletons (5), SMSVOICE (1), SMT (25), Snap (35), Snaplet-fay (1), SNS (1), Socket (1), Software (4), Software Defined Radio (2), Solana (1), Solver (1), Sorting (4), Sound (230), Source Code Analysis (3), Source Tools (1), Source-tools (8), Spam (5), Spellchecker (1), SpreadSheet (3), SQL (2), SQLite (3), SQS (1), SSM (1), SSMContacts (1), SSMGuiConnect (1), SSMIncidents (1), SSMQuickSetup (1), SSO (1), Staged (1), State Machines (2), Static (1), Static Analysis (9), Static-analysis (1), StaticAnalysis (1), Statistical Modeling (2), Statistics (80), Steganography (1), Stemming (1), StepFunctions (1), STM (5), STM32 (4), Stochastic Control (1), Stomp (4), Storage (1), Stratux (5), Stream (2), Streaming (69), Streamly (21), String (12), StructuredFinance (1), Structures (2), Subscriptions (1), Subversion (1), Succinct Data Structures (8), Support Vector Machine (1), SupportApp (1), SVD (1), Svg (5), Swagger (11), Symbolic Arithmetic (1), Symbolic Computation (18), Syntax (7), SyntComp (1), Synthetics (1), Syslog (1), SYstem (855), System Tools (2), Systems (1), SystemsManagerSAP (1), Tar (5), Task (2), Taskwarrior (1), Tasty (1), Tasty-kat (1), Tax (1), Teaching (10), Telemetry (18), Template (9), Template Haskell (51), Template-haskell (2), TemplateHaskell (3), Templating (2), Tensors (14), Terminal (13), Terraform (1), Test (58), Testing (494), Testing-hackage (1), Text (1094), Text Editor (1), Text Recognition (1), Text To Speech (1), Text.PrettyPrint (1), TH (3), Theorem Provers (52), Theorem Proving (1), These (7), This (1), Thrift (4), Time (68), Time Uniform (1), Time-frequency Distributions (1), Timeout (2), Timestream (1), TODO (6), Tokenisation (1), TOML (6), Tonatona (8), Tool (2), Tooling (5), Tools (56), Topology (1), TouchDesigner (1), Trace (13), Tracing (8), Training (1), Trans (1), Transfer (1), Transformation (3), Transformers (2), Translation (1), Transpiler (1), Tree (5), Tree-sitter (14), Tropical Geometry (1), Truth Maintenance (1), Try (1), TUI (6), TUI Tool (1), Tutorials (1), Type (1), Type Errors (1), Type Inference (1), Type System (50), Type Theory (1), Type-Level Programming (1), Type-safe (1), Typechecking (1), Typeclass (2), TypeID (1), Types (25), TypeScript (2), Typesystems (1), Typography (6), UI (11), Unicode (11), Unification (4), Uniform (8), Uniform Handling Of Some Pandoc Stuff (1), Unikernel (1), Unity3D (1), Unknown (3), Unlift (1), Unsafe (2), Ur/Web (2), Urbit (2), URI (2), URL (1), User Interface (5), User Interfaces (100), User-interface (9), UserInterface (4), Util (6), Utilities (20), Utility (74), Utils (119), UUID (1), UUIDv7 (1), Uzbl (1), Validation (6), Validity (13), Value (6), Vector (9), Verification (1), VerifiedPermissions (1), Video (4), Vinyl (4), Visual Programming (2), Visualisation (1), Visualization (3), VoiceID (1), VpcLattice (1), VSCode (1), Vulkan (2), WAF (1), WAFRegional (1), WAFv2 (1), Wai (4), Warning (1), WASM (1), Watch (1), Water (1), Web (2165), Web Scraping (1), Web Server (1), Web XML (1), Web Yesod (1), Web-scraping (1), Web3 (2), WebAssembly (2), Webb (1), WebDriver (4), Webframework (1), Webscraping (3), Welcome (1), Well-Known-Text (1), Wiki (1), Wisdom (1), WKT (1), Workflow (2), WorkSpaces (1), WorkspacesInstances (1), WorkSpacesThinClient (1), WorkSpacesWeb (1), WSJT-X (1), X11 (2), XDG (1), XFCE (1), Xlsx (1), XML (116), XMonad (6), XMPP (1), XRay (1), YAML (6), Yampa (1), Yesod (109), Yi (18), Zeromq (1), Zift (7), Zip (2), Zipkin (1), Zippers (2), ZLib (1), Unclassified (539).

array-memoize library: Memoization combinators using arrays for finite sub-domains of functions
PortFusion program: high-performance distributed reverse / forward proxy & tunneling for TCP
reflex-ghci library, program and test: A GHCi widget library for use in reflex applications
wxSimpleCanvas library: Simple zoomable canvas for wxHaskell

"Distributed Computing"

polling-cache library and test: Cache infrequently updated data for simpler distributed systems.

-

tslib library and tests: -

.NET

clr-bindings library and test: Glue between clr-host and clr-typed
clr-host library and test: Hosting the Common Language Runtime
clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
clr-marshal library: Marshaling for the clr
clr-typed library and test: A strongly typed Haskell interface to the CLR type system
clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug
hs-dotnet library: Pragmatic .NET interop for Haskell
language-cil library: Manipulating Common Intermediate Language AST
Salsa library: A .NET Bridge for Haskell

Accelerate

accelerate library, programs and tests: An embedded language for accelerated array processing
accelerate-bignum library, tests and benchmark: Fixed-length large integer arithmetic for Accelerate
accelerate-blas library, tests and benchmarks: Numeric Linear Algebra in Accelerate
accelerate-examples library and programs: Examples using the Accelerate library
accelerate-fft library and tests: FFT using the Accelerate library
accelerate-io library: Convert between Accelerate arrays and raw pointers
accelerate-io-array library and test: Convert between Accelerate and array
accelerate-io-bmp library: Convert between Accelerate arrays and BMP images
accelerate-io-bytestring library: Convert between Accelerate and ByteString
accelerate-io-cereal library: Binary serialisation of Accelerate arrays using cereal
accelerate-io-JuicyPixels library: Convert between Accelerate arrays and JuicyPixels images
accelerate-io-repa library: Convert between Accelerate and Repa arrays
accelerate-io-serialise library: Binary serialisation of Accelerate arrays using serialise
accelerate-io-vector library and test: Convert between Accelerate and vector
accelerate-kullback-liebler library, test and benchmark: Kullback-Liebler divergence
accelerate-llvm library: Accelerate backend component generating LLVM IR
accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
colour-accelerate library: Working with colours in Accelerate
containers-accelerate library and test: Hashing-based container types
FAI library and test: Haskell Foreign Accelerate Interface
gloss-accelerate library: Extras to interface Gloss and Accelerate
gloss-raster-accelerate library: Parallel rendering of raster images using Accelerate
hashable-accelerate library: A class for types which can be converted into a hash value
lens-accelerate library: Instances to mix lens with Accelerate
linear-accelerate library and test: Lifting linear vector spaces into Accelerate
mwc-random-accelerate library and benchmark: Generate Accelerate arrays filled with high quality pseudorandom numbers

AccessAnalyzer

stratosphere-accessanalyzer library: Stratosphere integration for AWS AccessAnalyzer.

Accessibility

bitspeak program: Proof-of-concept tool for writing using binary choices.
festival library: C bindings plus conveniences for the festival tts system.
hsay program: (ab)Use Google Translate as a speech synthesiser
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Accounting

exchangealgebra library and tests: Exchange Algebra for bookkeeping and economic simulation

ACME

ACME library: Essential features
acme-all-monad library: A monad which is powerful enough to interpret any action
acme-box library, program and test: A full featured empty project
acme-cadre library: car, cdr and more
acme-circular-containers library and test: Spineless containers which are fast to read but inefficient to update
acme-cofunctor library: A Cofunctor is a structure from category theory dual to Functor
acme-colosson library: Determines whether it is numberwang.
acme-cuteboy library and program: Maybe gives you a cute boy
acme-cutegirl library and program: Maybe gives you a cute girl
acme-default library: A class for types with a distinguished aesthetically pleasing value
acme-dont library and test: A "don't" construct
acme-everything library: Install everything.
acme-flipping-tables library: Stop execution with rage.
acme-functors library: The best applicative functors.
acme-grawlix library: More readable names for commonly used symbols
acme-hq9plus library: An embedded DSL for the HQ9+ programming language
acme-inator library and program: Evil inventions in the Tri-State area
acme-io library: The only true way to do IO in Haskell!
acme-lolcat library: LOLSPEAK translator
acme-lookofdisapproval library: Express your disapproval
acme-memorandom library: Memoized random number generation
acme-microwave library: The eighth wonder of the world, kitchen math!
acme-miscorder library: Miscellaneous newtypes for orderings of discutable use.
acme-missiles library: Cause serious international side effects.
acme-mutable-package library: A mutable package.
acme-now library: An interface to the philosophical and metaphysical "now"
acme-numbersystem library: Define the less than and add and subtract for nats
acme-omitted library and test: A name for omitted definitions
acme-one library: The identity element of package dependencies
acme-php library: The flexibility of Haskell and the safety of PHP
acme-pointful-numbers library: Make more than one point in numeric literals
acme-realworld library: Primitives for manipulating the state of the universe
acme-safe library: Safe versions of some infamous haskell functions such as fromJust
acme-schoenfinkel library and test: Proper names for curry and uncurry
acme-smuggler library and test: Smuggle arbitrary values in arbitrary types
acme-strfry library: A binding to the glibc strfry function.
acme-stringly-typed library: Stringly Typed Programming
acme-strtok library: A Haskell port of the C/PHP strtok function
acme-timemachine library: An easy way to perform and unperform IO and other stateful actions.
acme-year library, test and benchmark: Get the current year
acme-zalgo library: ...
acme-zero library: The absorbing element of package dependencies
apply-unordered library and test: Apply a function to an argument specified by a type level Nat
apply-unordered-mono library and test: Apply functions to arguments in an unordered type-directed fashion
ascii-cows library: A collection of ASCII cows. Moo.
empty library: Ceci n'est pas une package
hero-club-five-tenets library and program: Think back of the five tenets of hero club
icfpc2020-galaxy library: A strange message received at the Pegovka observatory
lacroix library: fizzy n dizzy
monadacme library: The Acme and AcmeT monads
plumbers library: Pointless plumbing combinators
redesigned-carnival library: Package for dependency confusion
roller library and program: Playing with applicatives and dice!
typesafe-precure library and test: Type-safe transformations and purifications of PreCures (Japanese Battle Heroine)
yes-precure5-command library, program and test: Extended yes command to reproduce phrases in Yes! Precure 5.

ACMPCA

stratosphere-acmpca library: Stratosphere integration for AWS ACMPCA.

Actors

theatre library: Minimalistic actor library
theatre-dev library and test: Minimalistic actor library experiments

Adjunctions

adjunction library, test and benchmark: See README for more info
adjunctions library and test: Adjunctions and representable functors

ADSB

stratux library: A library for stratux
stratux-demo library and program: A demonstration of the stratux library.
stratux-http library: A library for using HTTP with stratux
stratux-types library: A library for reading JSON output from stratux
stratux-websockets library: A library for using websockets with stratux

Aerospace

ogma-cli program and test: Ogma: Helper tool to interoperate between Copilot and other languages.
ogma-core library and test: Ogma: Helper tool to interoperate between Copilot and other languages.
ogma-extra library and test: Ogma: Helper tool to interoperate between Copilot and other languages.
ogma-language-c library and test: Ogma: Runtime Monitor translator: C Language Frontend
ogma-language-cocospec library and test: Ogma: Runtime Monitor translator: CoCoSpec Language Frontend
ogma-language-copilot library: Ogma: Runtime Monitor translator: Copilot Language Endpoints
ogma-language-csv library: Ogma: Runtime Monitor translator: CSV Frontend
ogma-language-fret-cs library and test: Ogma: Runtime Monitor translator: FRET Component Specification Frontend
ogma-language-fret-reqs library and test: Ogma: Runtime Monitor translator: FRET Component Requirement DB Frontend
ogma-language-jsonspec library: Ogma: Runtime Monitor translator: JSON Frontend
ogma-language-lustre library and test: Ogma: Runtime Monitor translator: Lustre Language Frontend
ogma-language-smv library and test: Ogma: Runtime Monitor translator: SMV Language Frontend
ogma-language-xlsx library: Ogma: Runtime Monitor translator: XLSX Frontend
ogma-language-xmlspec library: Ogma: Runtime Monitor translator: XML Frontend
ogma-spec library: Ogma: Runtime Monitor translator: JSON Frontend

Aeson

aeson-extra library and test: Extra goodies for aeson
aeson-helper library: Aeson helper func
aeson-result library: API Result for aeson
aeson-with library: withXField combinators for aeson

Agda

agda2train library and program: Agda backend to generate training data for machine learning purposes.

Agent

A-gent library: Polite & well educated LLM agent with excellent manners that always behaves well

AI

attoparsec-arff library: An ARFF file parser using Attoparsec
baikai library, programs and test: Unified Haskell interface for multiple AI providers
baikai-agent library, program and test: Unattended coding-agent runs for the Baikai abstraction
baikai-claude library and test: Anthropic Claude providers for the baikai abstraction
baikai-effectful library and test: effectful binding for the baikai AI-provider transport
baikai-kit library and test: Shared kit installer for AI-agent skills and subagents
baikai-openai library and test: OpenAI providers for the baikai abstraction
baikai-trace-otel library and test: OpenTelemetry TraceSink for baikai.
basic-gps library: Basic implementation of General Problem Solver algorithm
bpann library: backpropagation neuronal network
CarneadesDSL library and test: An implementation and DSL for the Carneades argumentation model.
CarneadesIntoDung library, program and test: A translation from the Carneades argumentation model into Dung's AFs.
claude library, programs and test: Servant bindings to Anthropic's Claude API
conala-dataset library and test: bindings to the CoNaLa dataset
creatur library and test: Framework for artificial life experiments.
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
CV library: OpenCV based machine vision library
cv-combinators library and program: Functional Combinators for Computer Vision
Dung library, program and tests: An implementation of the Dung argumentation frameworks.
Etage library: A general data-flow framework
fast-downward library: Solve classical planning problems (STRIPS/SAS+) using Haskell & Fast Downward.
fei-base library and program: FFI to MXNet
fei-cocoapi library and program: Cocodataset with cocoapi
fei-dataiter library, program and tests: mxnet dataiters
fei-datasets library and programs: Some datasets
fei-examples programs: fei examples
fei-modelzoo library: A collection of standard models
fei-nn library: Train a neural network with MXNet in Haskell.
finito library and tests: Constraint Solver for Finite Domains
GA library: Genetic algorithm library
genai-lib library and programs: A library for interacting with various generative AI LLMs
genprog library: Genetic programming library
grenade library, test and benchmarks: Practical Deep Learning in Haskell
gym-hs library, program and test: Haskell bindings for OpenAI Gymnasium
HasGP library: A Haskell library for inference using Gaussian processes
HaskellNN library: High Performance Neural Network in Haskell
hasktorch-codegen library, program and test: Code generation tools for Hasktorch
hasktorch-ffi-tests library: Testing library for Hasktorch's FFI bindings
hasktorch-ffi-th library and test: Bindings to Torch
hasktorch-ffi-thc library and test: Bindings to Cutorch
hasktorch-indef library and test: Core Hasktorch abstractions wrapping FFI bindings
hasktorch-signatures library and programs: Backpack signatures for Tensor operations
hasktorch-signatures-partial library: Functions to partially satisfy tensor signatures
hasktorch-signatures-support library: Signatures for support tensors in hasktorch
hasktorch-signatures-types library: Core types for Hasktorch backpack signatures
hasktorch-types-th library: C-types for Torch
hasktorch-types-thc library: C-types for Cutorch
hasktorch-zoo library: Neural architectures in hasktorch
HaVSA library and program: An implementation of the Version Space Algebra learning framework.
hbayesian library, programs and test: Composable Bayesian inference in Haskell on StableHLO/XLA
heukarya library: A genetic programming based on tree structure.
hfann library and program: Haskell binding to the FANN library
hgalib library: Haskell Genetic Algorithm Library
hhlo library, programs and test: Haskell Frontend for StableHLO — type-safe ML training/inference on CPU and GPU
hmep library, programs and test: HMEP Multi Expression Programming – a genetic programming variant
hnn library: A reasonably fast and simple neural network library
HOpenCV library and program: A binding for the OpenCV computer vision library
hopfield library, programs and test: Hopfield Networks, Boltzmann Machines and Clusters
hpylos program: AI of Pylos game with GLUT interface.
hs-onnxruntime-capi library: Low-level bindings for ONNX Runtime
HSGEP library and programs: Gene Expression Programming evolutionary algorithm in Haskell
huff library and program: A fast-foward-based planner
hVOIDP library and program: Optimal variable selection in chain graphical model.
ihp-openai library and test: Call GPT4 from your Haskell apps
instinct library: Fast artifical neural networks
keera-posture program and tests: Get notifications when your sitting posture is inappropriate.
langchain-hs library and test: Haskell implementation of Langchain
liblinear-enumerator library: liblinear iteratee.
llama-cpp-haskell library and program: Haskell bindings for the llama.cpp llama-server and a simple CLI
llama-cpp-hs library and test: Haskell FFI bindings to the llama.cpp LLM inference library
llm-simple library, programs and test: Multi-provider LLM library with agent tool loops and filesystem tools
llm-with-context library: Typified interactions with LLMs
markov-processes library and test: Hidden Markov processes.
mcp library and test: A Servant-based Model Context Protocol (MCP) server for Haskell
mcp-types library and test: Core types and protocol definitions for the Model Context Protocol (MCP)
mines program: Minesweeper simulation using neural networks
moo library and test: Genetic algorithm library
mxnet-dataiter library and tests: mxnet dataiters
mxnet-nn library and program: Train a neural network with MXNet in Haskell.
neet library: A NEAT library for Haskell
neural-network-base library: Yet Another High Performance and Extendable Neural Network in Haskell
neural-network-blashs library and test: Yet Another High Performance and Extendable Neural Network in Haskell
neural-network-hmatrix library: Yet Another High Performance and Extendable Neural Network in Haskell
nn library and test: A tiny neural network
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
ollama-haskell library, programs, tests and benchmark: Industry-grade Haskell client for the Ollama API
openai library, programs and test: Servant bindings to OpenAI
opencv library, tests and benchmark: Haskell binding to OpenCV-3.x
opencv-extra library and test: Haskell binding to OpenCV-3.x extra modules
opencv-raw library: Raw Haskell bindings to OpenCV >= 2.0
pms-application-service library and test: pms-application-service
pms-domain-model library and test: pms-domain-model
pms-domain-service library and test: pms-domain-service
pms-infra-agent-process library and test: pms-infra-agent-process
pms-infra-agent-serial library and test: pms-infra-agent-serial
pms-infra-agent-server library and test: pms-infra-agent-server
pms-infra-agent-socket library and test: pms-infra-agent-socket
pms-infra-cmdrun library and test: pms-infra-cmdrun
pms-infra-filesystem library and test: pms-infra-filesystem
pms-infra-procspawn library and test: pms-infra-procspawn
pms-infra-serial library and test: pms-infra-serial
pms-infra-socket library and test: pms-infra-socket
pms-infra-watch library and test: pms-infra-watch
pms-infrastructure library and test: pms-infrastructure
pms-ui-notification library and test: pms-ui-notification
pms-ui-request library and test: pms-ui-request
pms-ui-response library and test: pms-ui-response
Probnet library: Geometric Extrapolation of Integer Sequences with error prediction
pty-mcp-server program: pty-mcp-server
sandlib library: SAND data serialization and manipulation library
shikumi library and test: Typed, structured, evaluable LM programs over baikai
shikumi-cache library and test: Content-addressed response caching for shikumi (EP-6)
shikumi-cache-postgres library and test: Postgres-backed shikumi cache (EP-6)
shikumi-cache-redis library and test: Redis-backed shikumi cache (EP-6)
shikumi-compile library and test: The compiler layer for shikumi LM programs (EP-9)
shikumi-eval library and test: Typed evaluation framework for shikumi LM programs (EP-8)
shikumi-okf library, program and test: Generate OKF documentation bundles from shikumi programs (EP-31)
shikumi-optimize library and test: The optimizer framework for shikumi LM programs (EP-10)
shikumi-tools library and test: Typed tools and ReAct agents for shikumi LM programs (EP-11)
shikumi-trace library, program and test: Hierarchical tracing, observability, and deterministic replay for shikumi (EP-7)
shikumi-trace-otel library and test: OpenTelemetry export of shikumi hierarchical trace trees (EP-7)
simple-genetic-algorithm library and program: Simple parallel genetic algorithm implementation
simple-genetic-algorithm-mr library and program: Simple parallel genetic algorithm implementation
simple-neural-networks library and programs: Simple parallel neural networks implementation
SimpleEA library: Simple evolutionary algorithm framework.
smarties library, programs and test: Haskell Behavior Tree Library
SoccerFun library and program: Football simulation framework for teaching functional programming
SoccerFunGL library and programs: OpenGL UI for the SoccerFun framework
svm library: A support vector machine written in Haskell
svm-simple library: Medium level, simplified, bindings to libsvm
tensor-safe library and program: Create valid deep neural network architectures
typechain library and program: An implementation of LangChain in Haskell

AIOps

stratosphere-aiops library: Stratosphere integration for AWS AIOps.

Algebra

acts library: Semigroup actions and torsors.
agum library and program: Unification and Matching in an Abelian Group
algebra library: Constructive abstract algebra
algebraic library: General linear algebra structures.
algebraic-edge-graphs library, test and benchmark: A library for algebraic edge-graph construction and transformation
algebraic-graph-duoids library and tests: Duoid instances for the algebraic-graphs package
algebraic-graphs library and test: A library for algebraic graph construction and transformation
allen library, program, test and benchmark: A monadic way of calculating relations between intervals of time.
cayley-dickson library and test: Complex numbers, quaternions, octonions, sedenions, etc.
cl3 library, test and benchmarks: Clifford Algebra of three dimensional space.
cl3-hmatrix-interface library: Interface to/from Cl3 and HMatrix.
cl3-linear-interface library: Interface to/from Cl3 and Linear.
cl3-posit library and test: Clifford Algebra of three dimensional space, implemented with Posit numbers.
clif library, test and benchmark: A Clifford algebra number type for Haskell
clipper library: Haskell API to clipper (2d polygon union/intersection/xor/clipping API)
cmu library and program: Unification in a Commutative Monoid
commutative-semigroups library: Commutative semigroups
constructive-algebra library: A library of constructive algebra.
csa library and test: Connection-set algebra (CSA) library
duoidal-transformers library and test: Extending the tranformers package with duoids
duoids library and test: Unifying parallel and sequential operations
duoids-hedgehog library and tests: Unifying parallel and sequential operations
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
fadno-braids library: Braid representations in Haskell
fcf-graphs library and test: Type-level version of algebraic-graphs.
finite-field library and test: Finite Fields
free-algebras library and test: Free algebras
free-category library, test and benchmark: efficient data types for free categories and arrows
gasp library: A framework of algebraic classes
ghc-bignum : GHC BigNum library
group-theory library: The theory of groups
groups library: Groups
groups-generic library: Generically derive Group instances.
haskell-eigen-util library and test: Some utility functions for haskell-eigen library
hspray library, test and benchmark: Multivariate polynomials and fractions of multivariate polynomials.
integer-gmp library: Integer library based on GMP
interval-algebra library, program and tests: An implementation of Allen's interval algebra for temporal logic
interval-patterns library and test: Intervals, and monoids thereof
involutive-semigroups library: Semigroups with involution.
jackpolynomials library, test and benchmark: Jack, zonal, Schur, and other symmetric polynomials
linear library and tests: Linear Algebra
linear-accelerate library and test: Lifting linear vector spaces into Accelerate
linear-grammar library and test: A simple grammar for building linear equations and inclusive inequalities.
linear-massiv library, test and benchmarks: Type-safe numerical linear algebra backed by massiv arrays
linear-tests library and test: Linear Algebra
lr-acts library, test and benchmark: Left and right actions, semidirect products and torsors
magma library and test: magma is an algebraic structure.
metamorphic library: metamorphisms: ana . cata or understanding folds and unfolds
monoid-absorbing library: A library for (left, right) zero monoids and backtracking with cut
monoid-subclasses library and test: Subclasses of Monoid
mpolynomials library: Simple multivariate polynomials.
multi-instance library and test: Typeclasses augmented with a phantom type parameter
nats library: Natural numbers
oalg-abg library and test: Finitely generated abelian groups.
oalg-base library and test: ...
partial-semigroup library and tests: A partial binary associative operator
partial-semigroup-hedgehog library: Property testing for partial semigroups using Hedgehog
partial-semigroup-test library: Testing utilities for the partial-semigroup package
semigroups library: Anything that associates
semigroups-actions library: Semigroups actions
semilattices library and test: Semilattices
semirings library: two monoids as one, in holy haskimony
sign library and test: Arithmetic over signs and sets of signs
simplex-basic library and test: Very basic simplex implementation.
sparse-tensor library and test: typesafe tensor algebra library
subhask library, tests and benchmark: Type safe interface for programming in subcategories of Hask
tropical-geometry library, program, test and benchmark: A Tropical Geometry package for Haskell
unification-fd library: Simple generic unification algorithms.
yap library: yet another prelude - a simplistic refactoring with algebraic classes
yap-examples library and tests: examples of the algebraic classes in the yap package

Algebra Uniform

uniform-algebras library: Pointless functions and a simplistic zero and monoid

Algorithm

grfn library, program, test and benchmark: Uniformly-random pre-factored numbers (Kalai)
jps library: Jump point search for Haskell
kmeans-par library, test and benchmark: Sequential and parallel implementations of Lloyd's algorithm.
longshot library, program and test: Fast Brute-force search using parallelism
mealy library: Mealy machines for processing time-series and ordered data.
pathfinding library: pathfinding in grid and graphs
Ritt-Wu library, program, test and benchmark: Parallel implementation of Ritt-Wu's algorithm.
search-algorithms library, tests and benchmark: Common graph search algorithms
typed-session-state-algorithm library and test: Automatically generate status for typed-session.

Algorithm Visualization

provenience library and program: Computations that automatically track data dependencies
treeviz library, program and test: Visualization of computation decomposition trees.

Algorithmic Music Composition

AlgoRhythm library, program and test: Algorithmic music composition

Algorithms

ac-library-hs library, program, tests and benchmark: Data structures and algorithms
Adaptive library and program: Library for incremental computing.
adp-multi library, programs and test: ADP for multiple context-free languages
adp-multi-monadiccp library, program and test: Subword construction in adp-multi using monadiccp
ADPfusion library, programs and test: Efficient, high-level dynamic programming.
ADPfusionSet library and test: Dynamic programming for Set data structures.
aeson-diff library, programs and tests: Extract and apply patches to JSON documents.
AlanDeniseEricLauren library, test and benchmark: Find the minimal subset/submap satisfying some property.
algebraic-edge-graphs library, test and benchmark: A library for algebraic edge-graph construction and transformation
algebraic-graphs library and test: A library for algebraic graph construction and transformation
algraph library and test: Graph library using adjacency list representation
AlignmentAlgorithms library: Collection of alignment algorithms
arithmoi library, test and benchmarks: Efficient basic number-theoretic functions.
assignment library, test and benchmarks: A solution to the assignment problem
batching library and test: An Applicative Functor deferring actions to run in a batch later.
binary-search library and tests: Binary and exponential searches
Binpack library: Common bin-packing heuristics.
bordacount library and test: Implementation of the Borda count election method.
build library and test: Build Systems à la Carte
ChibiHash library, program and test: a simple and fast 64-bit hash function
cmaes library and test: CMA-ES wrapper in Haskell
collate library and test: An Applicative Functor for extracting parts of a stream of values
concorde library: Simple interface to the Concorde solver for the Traveling Salesperson Problem
concurrent-sa library: Concurrent simulated annealing system.
conduit-aeson library and tests: Short description
cubicspline library: Natural cubic spline interpolation.
DecisionTree library: A very simple implementation of decision trees for discrete attributes.
dgim library and test: Implementation of DGIM algorithm
Diff library and test: Diff algorithm in pure Haskell
DifferentialEvolution library: Global optimization using Differential Evolution
DimensionalHash library: An n-dimensional hash using Morton numbers.
dom-lt library, test and benchmark: The Lengauer-Tarjan graph dominators algorithm.
DP library: Pragmatic framework for dynamic programming
dtw library and test: (Fast) Dynamic Time Warping
edit-distance library, test and benchmark: Levenshtein and restricted Damerau-Levenshtein edit distances
edit-distance-linear library, program, test and benchmark: Efficient implementation of the Levenshtein edit distance in linear memory.
edit-distance-vector library and test: Calculate edit distances and edit scripts between vectors.
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
epanet-haskell library: Haskell binding for EPANET
equivalence library and test: Maintaining an equivalence relation implemented as union-find using STT.
ersatz library, programs and tests: A monad for expressing SAT or QSAT problems using observable sharing.
ersatz-toysat library and programs: toysat driver as backend for ersatz
exact-cover library, program and test: Efficient exact cover solver.
fast-arithmetic library, test and benchmark: Fast functions on integers.
fibonacci library: Fast computation of Fibonacci numbers.
funsat library and program: A modern DPLL-style SAT solver
fuzzystrmatch-pg library and test: Determine string similarities and distance
GA library: Genetic algorithm library
garsia-wachs library: A Functional Implementation of the Garsia-Wachs Algorithm
genprog library: Genetic programming library
graph-generators library, program and test: Functions for generating structured or random FGL graphs
Graphalyze library: Graph-Theoretic Analysis library.
graphs library: A simple monadic graph library
GraphSCC library: Tarjan's algorithm for computing the strongly connected components of a graph.
gutenberg-fibonaccis library: The first 1001 Fibonacci numbers, retrieved from the Gutenberg Project.
heapsort library and programs: Heapsort of MArrays as a demo of imperative programming
hgal library and test: library for computation automorphism group and canonical labelling of a graph
hlcm library and programs: Fast algorithm for mining closed frequent itemsets
HMM library: A hidden markov model library
hmm library: A hidden markov model library
hps-kmeans library: A nice implementation of the k-Means algorithm.
hqcsim library and program: A library for simulating quantum circuits.
htn library and test: resolver using htn algorithm
Hungarian-Munkres library, test and benchmark: A Linear Sum Assignment Problem (LSAP) solver
hypertypes library, test and benchmark: Typed ASTs
imj-animation library and test: Animation Framework
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
incremental-sat-solver library: Simple, Incremental SAT Solving as a Library
infinite-search library: Exhaustively searchable infinite sets.
integer-logarithms library and test: Integer logarithms.
integer-roots library and test: Integer roots and perfect powers
iproute library and test: IP Routing Table
kmeans library: K-means clustering algorithm
KMP library and test: Knuth–Morris–Pratt string searching algorithm
kmp-dfa library and test: KMP algorithm implementation, based on Deterministic Finite State Automata
lca library: O(log n) persistent online lowest common ancestor search without preprocessing
learning-hmm library: Yet another library for hidden Markov models
libgraph library: Store and manipulate data in a graph.
LinearSplit library: Partition the sequence of items to the subsequences in the order given
ListTree library: Trees and monadic trees expressed as monadic lists where the underlying monad is a list
majority library: Boyer-Moore Majority Vote Algorithm
markov-chain library: Markov Chains for generating random sequences with a user definable behaviour.
maximal-cliques library: Enumerate all maximal cliques of a graph.
mdp library, programs and test: Tools for solving Markov Decision Processes.
mempack library, test and benchmark: Short description
MIP library and test: Library for using Mixed Integer Programming (MIP)
MIP-glpk library and test: A GLPK backend to the MIP library.
moo library and test: Genetic algorithm library
Munkres library: Munkres' assignment algorithm (hungarian method)
Munkres-simple library: Simple and typesafe layer over the Munkres package.
natural-sort library: User-friendly text collation
nonlinear-optimization-ad library and program: Wrapper of nonlinear-optimization package for using with AD package
nonlinear-optimization-backprop library and program: Wrapper of nonlinear-optimization package for using with backprop package
number-wall library, test and benchmark: Create number walls and save them as images
Numbers library: An assortment of number theoretic functions
numeric-optimization library, program and test: Unified interface to various numerical optimization algorithms
numeric-optimization-ad library, program and test: Wrapper of numeric-optimization package for using with AD package
numeric-optimization-backprop library, program and test: Wrapper of numeric-optimization package for using with backprop package
outsort program: External sorting package based on Conduit
palindromes library, program, test and benchmarks: Finding palindromes in strings
patience library: Patience diff and longest increasing subsequence
pell library and test: Package to solve the Generalized Pell Equation.
pqueue-mtl library: Fully encapsulated monad transformers with queuelike functionality.
presburger library and test: A decision procedure for quantifier-free linear arithmetic.
primal library, tests and benchmark: Primeval world of Haskell.
primal-memory library, test and benchmarks: Unified interface for memory managemenet.
primes library: Efficient, purely functional generation of prime numbers
primes-type library, test and benchmark: Type-safe prime numbers.
primesieve library and programs: FFI bindings for the primesieve library.
PropLogic library and program: Propositional Logic
pure-shuffle library and test
qchas library, program and test: A library for implementing Quantum Algorithms
quadratic-irrational library and tests: An implementation of quadratic irrationals
queuelike library: A library of queuelike data structures, both functional and stateful.
rangemin library: Linear range-min algorithms.
raz library, test and benchmarks: Random Access Zippers
rspp library: A Rational Street Performer Protocol solver
sat programs: CNF SATisfier
sat-micro-hs program: A minimal SAT solver
satchmo-backends library: driver for external satchmo backends
satchmo-examples programs: examples that show how to use satchmo
satchmo-funsat library: funsat driver as backend for satchmo
satchmo-toysat library: toysat driver as backend for satchmo
seqalign library: Sequence Alignment
set-cover library, programs, test and benchmark: Solve exact set cover problems like Sudoku, 8 Queens, Soma Cube, Tetris Cube
smartGroup library: group strings or bytestrings by words in common
spacefill library and test: Generators for space-filling curves.
stable-marriage library and test: algorithms around stable marriage
strips library and test: resolver using strips algorithm
svm-simple library: Medium level, simplified, bindings to libsvm
teams library: Graphical modeling tools for sequential teams
text-metrics library, test and benchmarks: Calculate various string metrics efficiently
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
tree-edit-distance library, program and test: Tree Edit Distance to determine the similarity between two trees
TrieMap library: Automatic type inference of generalized tries with Template Haskell.
tsne library, programs and test: t-SNE
twentyseven library, program and test: Rubik's cube solver
unification-fd library: Simple generic unification algorithms.
union-find library: Efficient union and equivalence testing of sets.
union-find-array library: union find data structure
vector-quicksort library, test and benchmark: Fast and flexible quicksort implementation for mutable vectors
wordsearch library and program: A word search solver library and executable
yices-easy library: Simple interface to the Yices SMT (SAT modulo theories) solver.

Amazon

aws-sns-verify library and test: Parse and verify AWS SNS messages

AmazonMQ

stratosphere-amazonmq library: Stratosphere integration for AWS AmazonMQ.

Amplify

stratosphere-amplify library: Stratosphere integration for AWS Amplify.

AmplifyUIBuilder

stratosphere-amplifyuibuilder library: Stratosphere integration for AWS AmplifyUIBuilder.

Amqp

amqp-streamly library and test: A simple streamly wrapper for amqp

Anatomy

teeth library: Dental data types

Animation

cal3d library: Haskell binding to the Cal3D animation library.
cal3d-examples programs: Examples for the Cal3d animation library.
cal3d-opengl library: OpenGL rendering for the Cal3D animation library
imj-animation library and test: Animation Framework
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.

ANSI

colourista library and test: Convenient interface for printing colourful messages

AOP

effective-aspects library and test: A monadic embedding of aspect oriented programming
effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...

API

aeson-result library: API Result for aeson
alerta library: Bindings to the alerta REST API
approveapi library and test: ApproveAPI Haskell Client
arxiv library: A client for the Arxiv API
arxiv-client library and test: Tiny client for the arXiv Atom API with a simple query DSL
bighugethesaurus library: API wrapper for Big Huge Thesaurus
cicero-api library and program: API bindings to IOHK's Cicero job scheduler
circlehs library: The CircleCI REST API for Haskell
claude library, programs and test: Servant bindings to Anthropic's Claude API
dhscanner-kbapi library and program: query language api for dhscanner knowledge base
dialogflow-fulfillment library and test: A Dialogflow Fulfillment library for Haskell.
doublify-toolkit library: Doublify API toolkit for Haskell
dropbox library, program and test: Dropbox API client
erpnext-api-client library and test: Generic API client library for ERPNext
exchangerates library and test: A Haskell client for https://exchangeratesapi.io/
factual-api library: A driver for the Factual API
fixer library and test: A Haskell client for http://fixer.io/
gitter library: Gitter.im API client
haskell-google-genai-client library and test: Auto-generated Gemini API Client for Haskell
hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
jpl-horizons-api library and program: Ephemerides for solar system objects from the JPL Horizons service
kawhi library and test: stats.NBA.com library
leankit-api library: LeanKit API
lrclib-client library and test: A Haskell client for the LrcLib API (lyrics database)
messente library: Messente SMS Gateway
nylas library: Client for the Nylas API
oanda-rest-api library and tests: Client to the OANDA REST API
openai library, programs and test: Servant bindings to OpenAI
pagerduty-hs library and test: An interface to the PagerDuty API.
plotserver-api library: Plotserver API
pokitdok library: PokitDok Platform API Client for Haskell
pubnub library, programs and test: PubNub Haskell SDK
quandl-api library: Quandl.com API library
rdioh library and programs: A Haskell wrapper for Rdio's API.
reflex-gadt-api library and program: Interact with a GADT API in your reflex-dom application.
servant-to-elm library, program and test: Automatically generate Elm clients for Servant APIs
speechmatics library, program and test: Speechmatics api client
strive library: A client for the Strava V3 API.
tablestorage library: Azure Table Storage REST API Wrapper
textocat-api library and test: Unofficial Haskell SDK for Textocat API -- http://textocat.com
themoviedb library, program and test: Haskell API bindings for http://themoviedb.org
twfy-api-client library, program and test: They Work For You API Client Library
uploadcare library: Haskell client for Uploadcare.
voicebase library, program and test: Upload audio files to voicebase to get a transcription
weather-api library: Weather API implemented in Haskell
zendesk-api library: Zendesk API for Haskell programming language.

ApiGateway

stratosphere-apigateway library: Stratosphere integration for AWS ApiGateway.

ApiGatewayV2

stratosphere-apigatewayv2 library: Stratosphere integration for AWS ApiGatewayV2.

AppConfig

stratosphere-appconfig library: Stratosphere integration for AWS AppConfig.

AppFlow

stratosphere-appflow library: Stratosphere integration for AWS AppFlow.

AppIntegrations

stratosphere-appintegrations library: Stratosphere integration for AWS AppIntegrations.

Apple

hs-pkpass library: A library for Passbook pass creation & signing
maclight library, program and test: Control screen and keyboard backlights on MACs under Linux
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Application

boots library and test: IoC Monad in Haskell
boots-app library and program: Factory for quickly building an application
boots-cloud library: Factory for quickly building a microservice
boots-web library: Factory for quickly building a web application
cantor program and test: Application for analysis of java source code
epub-tools programs and test: Command line utilities for working with epub files
epubname program: Rename epub ebook files based on meta information
follower program: Follow Tweets anonymously
ghclive library and program: Interactive Haskell interpreter in a browser.
Gifcurry library and programs: GIF creation utility.
graph-rewriting-cl program: Interactive graph rewriting system implementing various well-known combinators
graph-rewriting-lambdascope program: Lambdascope, an optimal evaluator of the lambda calculus
graph-rewriting-ski programs: Two interactive evalutors of the SKI combinator calculus
graph-rewriting-trs program: Interactive evaluation of first-order applicative term rewrite systems
graph-rewriting-ww program: Interactive evaluator of the lambda-calculus with explicit sharing
haskell-pdf-presenter program: Tool for presenting PDF-based presentations.
hscrtmpl programs: Haskell shell script templates
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.
iptadmin program: web-interface for iptables
movie-monad program: Plays videos using GStreamer and GTK+.
nix-freeze-tree library, program and test: Convert a tree of files into fixed-output derivations
opn program: Open files or URLs using associated programs.
pb program: pastebin command line application
perceptual-hash library, program, test and benchmark: Find duplicate images
photoname library, program and test: Rename photo image files based on EXIF shoot date
squeeze library, program and test: A file-packing application.
sshtun program: Wrapper daemon to manage an ssh tunnel
text-replace library, program and test: Simple text replacements from a list of search/replace pairs
themplate program: Project templating tool
thimk programs: Command-line spelling word suggestion tool
traypoweroff program: Tray Icon application to PowerOff / Reboot computer
weatherhs program: Weather and related data info command-line tool
weekdaze library, program and test: A school-timetable problem-solver.
wordlist library and program: Command-line tool to get random words

Application Server

MFlow library: stateful, RESTful web framework
Saturnin library, program and tests: Saturnin CI / Job System

ApplicationAutoScaling

stratosphere-applicationautoscaling library: Stratosphere integration for AWS ApplicationAutoScaling.

ApplicationInsights

stratosphere-applicationinsights library: Stratosphere integration for AWS ApplicationInsights.

ApplicationSignals

stratosphere-applicationsignals library: Stratosphere integration for AWS ApplicationSignals.

Applicative

lazyio-applicative library: LazyIO applicative for asymptotic performance
uu-interleaved library: An interleaving combinator for use with applicative style implementations.

AppMesh

stratosphere-appmesh library: Stratosphere integration for AWS AppMesh.

AppRunner

stratosphere-apprunner library: Stratosphere integration for AWS AppRunner.

AppStream

stratosphere-appstream library: Stratosphere integration for AWS AppStream.

AppSync

stratosphere-appsync library: Stratosphere integration for AWS AppSync.

AppTest

stratosphere-apptest library: Stratosphere integration for AWS AppTest.

APS

stratosphere-aps library: Stratosphere integration for AWS APS.

Archaeoinformatics

currycarbon library, program and test: A package for simple, fast radiocarbon calibration

ARCRegionSwitch

stratosphere-arcregionswitch library: Stratosphere integration for AWS ARCRegionSwitch.

ARCZonalShift

stratosphere-arczonalshift library: Stratosphere integration for AWS ARCZonalShift.

Argumentation

arguedit program: A computer assisted argumentation transcription and editing software.
CarneadesDSL library and test: An implementation and DSL for the Carneades argumentation model.
CarneadesIntoDung library, program and test: A translation from the Carneades argumentation model into Dung's AFs.
Dung library, program and tests: An implementation of the Dung argumentation frameworks.

Arithmetic

safe-numeric library and test: Safe arithmetic operations.

Array

accelerate-kullback-liebler library, test and benchmark: Kullback-Liebler divergence
apple library, programs, tests and benchmark: Apple array language compiler
array-list library and tests: IsList instances of Array for OverloadedLists extension
contiguous library, tests and benchmark: Unified interface for primitive arrays
j library and test: J in Haskell
massiv library and test: Massiv (Массив) is an Array Library.
massiv-persist library and tests: Compatibility of 'massiv' with 'persist'
massiv-serialise library and tests: Compatibility of 'massiv' with 'serialise'
orthotope library and test: Multidimensional arrays inspired by APL
orthotope-hmatrix library: Some algorithms from hmatrix
ox-arrays library, tests and benchmark: An efficient CPU-based multidimensional array (tensor) library
primitive-checked library: primitive functions with bounds-checking
primitive-maybe library and test: Arrays of Maybes
streamly library: Streaming data pipelines with declarative concurrency
streamly-core library: Streaming, parsers, arrays, serialization and more
streamly-text library and test: Efficient conversion between Streamly Arrays and Text

Arrows

arrow-utils library and test: functions for working with arrows
mealy-arrow library, program and test: Monadic Mealy machines with Arrow, ArrowChoice, and ArrowLoop
Parallel-Arrows-BaseSpec library and test: BaseSpecs used for @Parallel-Arrows-Definition@ and Co.
Parallel-Arrows-Definition library: Multithreaded evaluation using Arrows.
Parallel-Arrows-Eden library and test: Eden based backend for @Parallel-Arrows-Definition@.
Parallel-Arrows-Multicore library and test: GpH based backend for @Parallel-Arrows-Definition@ in a multicore variant.
Parallel-Arrows-ParMonad library and test: Par Monad (@monad-par@) based backend for @Parallel-Arrows-Definition@.
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks

Artificial Intelligence

mios library, programs and test: A Minisat-based CDCL SAT solver in Haskell
opencog-atomspace library: Haskell Bindings for the AtomSpace.

Arxiv

arxiv library: A client for the Arxiv API
arxiv-client library and test: Tiny client for the arXiv Atom API with a simple query DSL

ASCII

double-x-encoding library and test: Encoding scheme to encode any Unicode string with only [0-9a-zA-Z_]

ASK

stratosphere-ask library: Stratosphere integration for AWS ASK.

ASP

clingo library and programs: Haskell bindings to the Clingo ASP solver

Aspect Oriented Programming

effective-aspects library and test: A monadic embedding of aspect oriented programming
effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...

Assembler

heystone library: Haskell bindings for the Keystone assembler framework

AST

typerbole library and test: A typesystems library with exaggerated claims

Astrology

swiss-ephemeris library and test: Haskell bindings for the Swiss Ephemeris C library

Astronomy

jpl-horizons-api library and program: Ephemerides for solar system objects from the JPL Horizons service
solar library: Simple library for solar calculations
telescope library and test: Astronomical Observations (FITS, ASDF, WCS, etc)

Athena

stratosphere-athena library: Stratosphere integration for AWS Athena.

Atom

manatee-reader library and program: Feed reader extension for Manatee.

ATS

ats-format program: A source-code formatter for ATS
ats-pkg library and program: A build tool for ATS
ats-setup library: ATS scripts for Cabal builds
ats-storable library and test: Marshal ATS types into Haskell
fast-arithmetic library, test and benchmark: Fast functions on integers.
hs2ats library, program, test and benchmark: Create ATS types from Haskell types
language-ats library, test and benchmark: Parser and pretty-printer for ATS.
shake-ats library: Utilities for building ATS projects with shake

Attoparsec

attoparsec-framer library, programs and test: Use Attoparsec to parse framed protocol byte streams
attoparsec-time library: Attoparsec parsers of time
ping-parser-attoparsec library, program and test: Attoparsec parsers of ping utility

Attribute Grammars

XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP

Audio

algorithmic-composition-overtones library: Some variants of the overtones functions to generate a timbre.
cue-sheet library and test: Support for construction, rendering, and parsing of CUE sheets
festival library: C bindings plus conveniences for the festival tts system.
flac library and test: Complete high-level binding to libFLAC
flac-picture library and test: Support for writing pictures into FLAC metadata blocks with JuicyPixels
HGamer3D-SFML-Binding library: SFML Binding for HGamer3D
lame library and test: A high-level binding to the LAME encoder
libtagc library: Binding to TagLib C library.
mediabus-rtp library, program and test: Receive and Send RTP Packets
monatone library, program and test: Pure Haskell library for audio metadata parsing and writing
MusicBrainz-libdiscid library: Binding to libdiscid by MusicBrainz
silero-vad library, program and test: Voice activity detection powered by SileroVAD.
taglib-api library: An FFI layer over TagLib's C bindings
vivid library: Sound synthesis with SuperCollider
vivid-osc library and test: Open Sound Control encode/decode
vivid-supercollider library and test: Implementation of SuperCollider server specifications
wave library and test: Work with WAVE and RF64 files

AuditManager

stratosphere-auditmanager library: Stratosphere integration for AWS AuditManager.

Authentication

fernet library, program and test: Generate and verify HMAC-based authentication tokens.
firebase-hs library and test: Firebase Auth, Firestore, and Servant integration for Haskell
gamgee library, program and test: Tool for generating TOTP MFA tokens.
hsoz library, programs and test: Iron, Hawk, Oz: Web auth protocols
my-test-docs library and tests: spam
orizentic library, program and test: Token-based authentication and authorization
pam library: Haskell binding for C PAM API
servant-auth library: Authentication combinators for servant
servant-auth-client library and test: servant-client/servant-auth compatibility
servant-auth-docs library and tests: servant-docs/servant-auth compatibility
servant-auth-server library and tests: servant-server/servant-auth compatibility
servant-auth-swagger library and test: servant-swagger/servant-auth compatibility
thentos-cookie-session library and test: All-in-one session handling for servant-based frontends
wai-middleware-bearer library and test: WAI Middleware for Bearer Token Authentication
webauthn library and test: Relying party (server) implementation of the WebAuthn 2 specification

Automatic Music Generation

AlgoRhythm library, program and test: Algorithmic music composition

Automation

eibd-client-simple library: EIBd Client
hsautogui library and test: Haskell bindings for PyAutoGUI, a library for automating user interaction
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

AutoScaling

stratosphere-autoscaling library: Stratosphere integration for AWS AutoScaling.

AutoScalingPlans

stratosphere-autoscalingplans library: Stratosphere integration for AWS AutoScalingPlans.

Avers

avers library, test and benchmark: Server-side implementation of the Avers storage model
avers-api library: Types describing the core and extended Avers APIs
avers-api-docs library: Swagger documentation for the Avers API
avers-server library: Server implementation of the Avers API

Aviation

aip library, program and test: Aeronautical Information Package (AIP)
aip-version program: Version of AIP documents
aviation-cessna172-diagrams library: Diagrams for the Cessna 172 aircraft in aviation.
aviation-cessna172-weight-balance library: Weight and Balance for the Cessna 172 aircraft in aviation.
aviation-units library: Units of measurements used in aviation.
aviation-weight-balance library: Weight and Balance structures used in aviation.
avwx library, program and test: Parse aviation weather reports
casa-abbreviations-and-acronyms library and programs: CASA Abbreviations and Acronyms
casr-logbook library: CASR 61.345 Pilot Personal Logbook
casr-logbook-html library and test: CASR 61.345 Pilot Personal Logbook HTML output
casr-logbook-meta library and test: Meta-information about entries in a CASR 61.345 logbook (casr-logbook)
casr-logbook-meta-html library and test: Meta-information about entries in a CASR 61.345 logbook (casr-logbook) HTML output
casr-logbook-reports library and test: CASR 61.345 logbook (casr-logbook) reports.
casr-logbook-reports-html library and test: CASR 61.345 logbook reports HTML output
casr-logbook-reports-meta library and test: Reports on meta-information about entries in a CASR 61.345 logbook (casr-logbook)
casr-logbook-reports-meta-html library and test: HTML output for reports on meta-information about entries in a CASR 61.345 logbook
casr-logbook-types library and test: CASR 61.345 Pilot Personal Logbook
ersaconcat library, program and test: A script to concatenate AIP ERSA
metar library and program: METAR from BOM (Australia) with NOAA fallback
metar-http library and program: HTTP for METAR
sixfiguregroup library and test: A six figure group of time
stratux library: A library for stratux
stratux-demo library and program: A demonstration of the stratux library.
stratux-http library: A library for using HTTP with stratux
stratux-types library: A library for reading JSON output from stratux
stratux-websockets library: A library for using websockets with stratux
vfr-waypoints library and program: VFR waypoints, as published in the AIP (ERSA)

AWS

amazonka library: Comprehensive Amazon Web Services SDK.
amazonka-accessanalyzer library and test: Amazon Access Analyzer SDK.
amazonka-account library and test: Amazon Account SDK.
amazonka-alexa-business library and test: Amazon Alexa For Business SDK.
amazonka-amp library and test: Amazon Prometheus Service SDK.
amazonka-amplify library and test: Amazon Amplify SDK.
amazonka-amplifybackend library and test: Amazon AmplifyBackend SDK.
amazonka-amplifyuibuilder library and test: Amazon Amplify UI Builder SDK.
amazonka-apigateway library and test: Amazon API Gateway SDK.
amazonka-apigatewaymanagementapi library and test: Amazon ApiGatewayManagementApi SDK.
amazonka-apigatewayv2 library and test: Amazon ApiGatewayV2 SDK.
amazonka-appconfig library and test: Amazon AppConfig SDK.
amazonka-appconfigdata library and test: Amazon AppConfig Data SDK.
amazonka-appflow library and test: Amazon Appflow SDK.
amazonka-appintegrations library and test: Amazon AppIntegrations Service SDK.
amazonka-application-autoscaling library and test: Amazon Application Auto Scaling SDK.
amazonka-application-insights library and test: Amazon CloudWatch Application Insights SDK.
amazonka-applicationcostprofiler library and test: Amazon Application Cost Profiler SDK.
amazonka-appmesh library and test: Amazon App Mesh SDK.
amazonka-apprunner library and test: Amazon App Runner SDK.
amazonka-appstream library and test: Amazon AppStream SDK.
amazonka-appsync library and test: Amazon AppSync SDK.
amazonka-arc-zonal-shift library and test: Amazon ARC - Zonal Shift SDK.
amazonka-athena library and test: Amazon Athena SDK.
amazonka-auditmanager library and test: Amazon Audit Manager SDK.
amazonka-autoscaling library and test: Amazon Auto Scaling SDK.
amazonka-autoscaling-plans library and test: Amazon Auto Scaling Plans SDK.
amazonka-backup library and test: Amazon Backup SDK.
amazonka-backup-gateway library and test: Amazon Backup Gateway SDK.
amazonka-backupstorage library and test: Amazon Backup Storage SDK.
amazonka-batch library and test: Amazon Batch SDK.
amazonka-billingconductor library and test: Amazon BillingConductor SDK.
amazonka-braket library and test: Amazon Braket SDK.
amazonka-budgets library and test: Amazon Budgets SDK.
amazonka-certificatemanager library and test: Amazon Certificate Manager SDK.
amazonka-certificatemanager-pca library and test: Amazon Certificate Manager Private Certificate Authority SDK.
amazonka-chime library and test: Amazon Chime SDK.
amazonka-chime-sdk-identity library and test: Amazon Chime SDK Identity SDK.
amazonka-chime-sdk-media-pipelines library and test: Amazon Chime SDK Media Pipelines SDK.
amazonka-chime-sdk-meetings library and test: Amazon Chime SDK Meetings SDK.
amazonka-chime-sdk-messaging library and test: Amazon Chime SDK Messaging SDK.
amazonka-chime-sdk-voice library and test: Amazon Chime SDK Voice SDK.
amazonka-cloud9 library and test: Amazon Cloud9 SDK.
amazonka-cloudcontrol library and test: Amazon Cloud Control API SDK.
amazonka-clouddirectory library and test: Amazon CloudDirectory SDK.
amazonka-cloudformation library and test: Amazon CloudFormation SDK.
amazonka-cloudfront library and test: Amazon CloudFront SDK.
amazonka-cloudhsm library and test: Amazon CloudHSM SDK.
amazonka-cloudhsmv2 library and test: Amazon CloudHSM V2 SDK.
amazonka-cloudsearch library and test: Amazon CloudSearch SDK.
amazonka-cloudsearch-domains library and test: Amazon CloudSearch Domain SDK.
amazonka-cloudtrail library and test: Amazon CloudTrail SDK.
amazonka-cloudwatch library and test: Amazon CloudWatch SDK.
amazonka-cloudwatch-events library and test: Amazon EventBridge SDK.
amazonka-cloudwatch-logs library and test: Amazon CloudWatch Logs SDK.
amazonka-codeartifact library and test: Amazon CodeArtifact SDK.
amazonka-codebuild library and test: Amazon CodeBuild SDK.
amazonka-codecommit library and test: Amazon CodeCommit SDK.
amazonka-codedeploy library and test: Amazon CodeDeploy SDK.
amazonka-codeguru-reviewer library and test: Amazon CodeGuru Reviewer SDK.
amazonka-codeguruprofiler library and test: Amazon CodeGuru Profiler SDK.
amazonka-codepipeline library and test: Amazon CodePipeline SDK.
amazonka-codestar library and test: Amazon CodeStar SDK.
amazonka-codestar-connections library and test: Amazon CodeStar connections SDK.
amazonka-codestar-notifications library and test: Amazon CodeStar Notifications SDK.
amazonka-cognito-identity library and test: Amazon Cognito Identity SDK.
amazonka-cognito-idp library and test: Amazon Cognito Identity Provider SDK.
amazonka-cognito-sync library and test: Amazon Cognito Sync SDK.
amazonka-comprehend library and test: Amazon Comprehend SDK.
amazonka-comprehendmedical library and test: Amazon Comprehend Medical SDK.
amazonka-compute-optimizer library and test: Amazon Compute Optimizer SDK.
amazonka-config library and test: Amazon Config SDK.
amazonka-connect library and test: Amazon Connect Service SDK.
amazonka-connect-contact-lens library and test: Amazon Connect Contact Lens SDK.
amazonka-connectcampaigns library and test: Amazon ConnectCampaignService SDK.
amazonka-connectcases library and test: Amazon Connect Cases SDK.
amazonka-connectparticipant library and test: Amazon Connect Participant Service SDK.
amazonka-contrib-rds-utils library and program: A Haskell equivalent of "aws rds generate-db-auth-token"
amazonka-controltower library and test: Amazon Control Tower SDK.
amazonka-core library and test: Core data types and functionality for Amazonka libraries.
amazonka-cost-explorer library and test: Amazon Cost Explorer Service SDK.
amazonka-cur library and test: Amazon Cost and Usage Report Service SDK.
amazonka-customer-profiles library and test: Amazon Connect Customer Profiles SDK.
amazonka-databrew library and test: Amazon Glue DataBrew SDK.
amazonka-dataexchange library and test: Amazon Data Exchange SDK.
amazonka-datapipeline library and test: Amazon Data Pipeline SDK.
amazonka-datasync library and test: Amazon DataSync SDK.
amazonka-detective library and test: Amazon Detective SDK.
amazonka-devicefarm library and test: Amazon Device Farm SDK.
amazonka-devops-guru library and test: Amazon DevOps Guru SDK.
amazonka-directconnect library and test: Amazon Direct Connect SDK.
amazonka-discovery library and test: Amazon Application Discovery Service SDK.
amazonka-dlm library and test: Amazon Data Lifecycle Manager SDK.
amazonka-dms library and test: Amazon Database Migration Service SDK.
amazonka-docdb library and test: Amazon DocumentDB with MongoDB compatibility SDK.
amazonka-docdb-elastic library and test: Amazon DocumentDB Elastic Clusters SDK.
amazonka-drs library and test: Amazon Elastic Disaster Recovery Service SDK.
amazonka-ds library and test: Amazon Directory Service SDK.
amazonka-dynamodb library and test: Amazon DynamoDB SDK.
amazonka-dynamodb-dax library and test: Amazon DynamoDB Accelerator (DAX) SDK.
amazonka-dynamodb-streams library and test: Amazon DynamoDB Streams SDK.
amazonka-ebs library and test: Amazon Elastic Block Store SDK.
amazonka-ec2 library and test: Amazon Elastic Compute Cloud SDK.
amazonka-ec2-instance-connect library and test: Amazon EC2 Instance Connect SDK.
amazonka-ecr library and test: Amazon EC2 Container Registry SDK.
amazonka-ecr-public library and test: Amazon Elastic Container Registry Public SDK.
amazonka-ecs library and test: Amazon EC2 Container Service SDK.
amazonka-efs library and test: Amazon Elastic File System SDK.
amazonka-eks library and test: Amazon Elastic Kubernetes Service SDK.
amazonka-elastic-inference library and test: Amazon Elastic Inference SDK.
amazonka-elasticache library and test: Amazon ElastiCache SDK.
amazonka-elasticbeanstalk library and test: Amazon Elastic Beanstalk SDK.
amazonka-elasticsearch library and test: Amazon Elasticsearch Service SDK.
amazonka-elastictranscoder library and test: Amazon Elastic Transcoder SDK.
amazonka-elb library and test: Amazon Elastic Load Balancing SDK.
amazonka-elbv2 library and test: Amazon Elastic Load Balancing SDK.
amazonka-emr library and test: Amazon EMR SDK.
amazonka-emr-containers library and test: Amazon EMR Containers SDK.
amazonka-emr-serverless library and test: Amazon EMR Serverless SDK.
amazonka-evidently library and test: Amazon CloudWatch Evidently SDK.
amazonka-finspace library and test: Amazon FinSpace User Environment Management service SDK.
amazonka-finspace-data library and test: Amazon FinSpace Public API SDK.
amazonka-fis library and test: Amazon Fault Injection Simulator SDK.
amazonka-fms library and test: Amazon Firewall Management Service SDK.
amazonka-forecast library and test: Amazon Forecast Service SDK.
amazonka-forecastquery library and test: Amazon Forecast Query Service SDK.
amazonka-frauddetector library and test: Amazon Fraud Detector SDK.
amazonka-fsx library and test: Amazon FSx SDK.
amazonka-gamelift library and test: Amazon GameLift SDK.
amazonka-gamesparks library and test: Amazon GameSparks SDK.
amazonka-glacier library and test: Amazon Glacier SDK.
amazonka-globalaccelerator library and test: Amazon Global Accelerator SDK.
amazonka-glue library and test: Amazon Glue SDK.
amazonka-grafana library and test: Amazon Managed Grafana SDK.
amazonka-greengrass library and test: Amazon Greengrass SDK.
amazonka-greengrassv2 library and test: Amazon IoT Greengrass V2 SDK.
amazonka-groundstation library and test: Amazon Ground Station SDK.
amazonka-guardduty library and test: Amazon GuardDuty SDK.
amazonka-health library and test: Amazon Health APIs and Notifications SDK.
amazonka-healthlake library and test: Amazon HealthLake SDK.
amazonka-honeycode library and test: Amazon Honeycode SDK.
amazonka-iam library and test: Amazon Identity and Access Management SDK.
amazonka-iam-policy library and tests: Amazon IAM Policy Document DSL and Combinators.
amazonka-identitystore library and test: Amazon SSO Identity Store SDK.
amazonka-imagebuilder library and test: Amazon EC2 Image Builder SDK.
amazonka-importexport library and test: Amazon Import/Export SDK.
amazonka-inspector library and test: Amazon Inspector SDK.
amazonka-inspector2 library and test: Amazon Inspector2 SDK.
amazonka-iot library and test: Amazon IoT SDK.
amazonka-iot-analytics library and test: Amazon IoT Analytics SDK.
amazonka-iot-dataplane library and test: Amazon IoT Data Plane SDK.
amazonka-iot-jobs-dataplane library and test: Amazon IoT Jobs Data Plane SDK.
amazonka-iot-roborunner library and test: Amazon IoT RoboRunner SDK.
amazonka-iot1click-devices library and test: Amazon IoT 1-Click Devices Service SDK.
amazonka-iot1click-projects library and test: Amazon IoT 1-Click Projects Service SDK.
amazonka-iotdeviceadvisor library and test: Amazon IoT Core Device Advisor SDK.
amazonka-iotevents library and test: Amazon IoT Events SDK.
amazonka-iotevents-data library and test: Amazon IoT Events Data SDK.
amazonka-iotfleethub library and test: Amazon IoT Fleet Hub SDK.
amazonka-iotfleetwise library and test: Amazon IoT FleetWise SDK.
amazonka-iotsecuretunneling library and test: Amazon IoT Secure Tunneling SDK.
amazonka-iotsitewise library and test: Amazon IoT SiteWise SDK.
amazonka-iotthingsgraph library and test: Amazon IoT Things Graph SDK.
amazonka-iottwinmaker library and test: Amazon IoT TwinMaker SDK.
amazonka-iotwireless library and test: Amazon IoT Wireless SDK.
amazonka-ivs library and test: Amazon Interactive Video Service SDK.
amazonka-ivschat library and test: Amazon Interactive Video Service Chat SDK.
amazonka-kafka library and test: Amazon Managed Streaming for Kafka SDK.
amazonka-kafkaconnect library and test: Amazon Managed Streaming for Kafka Connect SDK.
amazonka-kendra library and test: Amazon KendraFrontendService SDK.
amazonka-keyspaces library and test: Amazon Keyspaces SDK.
amazonka-kinesis library and test: Amazon Kinesis SDK.
amazonka-kinesis-analytics library and test: Amazon Kinesis Analytics SDK.
amazonka-kinesis-firehose library and test: Amazon Kinesis Firehose SDK.
amazonka-kinesis-video library and test: Amazon Kinesis Video Streams SDK.
amazonka-kinesis-video-archived-media library and test: Amazon Kinesis Video Streams Archived Media SDK.
amazonka-kinesis-video-media library and test: Amazon Kinesis Video Streams Media SDK.
amazonka-kinesis-video-signaling library and test: Amazon Kinesis Video Signaling Channels SDK.
amazonka-kinesis-video-webrtc-storage library and test: Amazon Kinesis Video WebRTC Storage SDK.
amazonka-kinesisanalyticsv2 library and test: Amazon Kinesis Analytics SDK.
amazonka-kms library and test: Amazon Key Management Service SDK.
amazonka-lakeformation library and test: Amazon Lake Formation SDK.
amazonka-lambda library and test: Amazon Lambda SDK.
amazonka-lex-models library and test: Amazon Lex Model Building Service SDK.
amazonka-lex-runtime library and test: Amazon Lex Runtime Service SDK.
amazonka-lexv2-models library and test: Amazon Lex Model Building V2 SDK.
amazonka-license-manager library and test: Amazon License Manager SDK.
amazonka-license-manager-linux-subscriptions library and test: Amazon License Manager Linux Subscriptions SDK.
amazonka-license-manager-user-subscriptions library and test: Amazon License Manager User Subscriptions SDK.
amazonka-lightsail library and test: Amazon Lightsail SDK.
amazonka-location library and test: Amazon Location Service SDK.
amazonka-lookoutequipment library and test: Amazon Lookout for Equipment SDK.
amazonka-lookoutmetrics library and test: Amazon Lookout for Metrics SDK.
amazonka-lookoutvision library and test: Amazon Lookout for Vision SDK.
amazonka-m2 library and test: Amazon MainframeModernization SDK.
amazonka-macie library and test: Amazon Macie SDK.
amazonka-maciev2 library and test: Amazon Macie 2 SDK.
amazonka-managedblockchain library and test: Amazon Managed Blockchain SDK.
amazonka-marketplace-analytics library and test: Amazon Marketplace Commerce Analytics SDK.
amazonka-marketplace-catalog library and test: Amazon Marketplace Catalog Service SDK.
amazonka-marketplace-entitlement library and test: Amazon Marketplace Entitlement Service SDK.
amazonka-marketplace-metering library and test: Amazon Marketplace Metering SDK.
amazonka-mechanicalturk library and test: Amazon Mechanical Turk SDK.
amazonka-mediaconnect library and test: Amazon MediaConnect SDK.
amazonka-mediaconvert library and test: Amazon Elemental MediaConvert SDK.
amazonka-medialive library and test: Amazon Elemental MediaLive SDK.
amazonka-mediapackage library and test: Amazon Elemental MediaPackage SDK.
amazonka-mediapackage-vod library and test: Amazon Elemental MediaPackage VOD SDK.
amazonka-mediastore library and test: Amazon Elemental MediaStore SDK.
amazonka-mediastore-dataplane library and test: Amazon Elemental MediaStore Data Plane SDK.
amazonka-mediatailor library and test: Amazon MediaTailor SDK.
amazonka-memorydb library and test: Amazon MemoryDB SDK.
amazonka-mgn library and test: Amazon Application Migration Service SDK.
amazonka-migration-hub-refactor-spaces library and test: Amazon Migration Hub Refactor Spaces SDK.
amazonka-migrationhub library and test: Amazon Migration Hub SDK.
amazonka-migrationhub-config library and test: Amazon Migration Hub Config SDK.
amazonka-migrationhuborchestrator library and test: Amazon Migration Hub Orchestrator SDK.
amazonka-migrationhubstrategy library and test: Amazon Migration Hub Strategy Recommendations SDK.
amazonka-ml library and test: Amazon Machine Learning SDK.
amazonka-mobile library and test: Amazon Mobile SDK.
amazonka-mq library and test: Amazon MQ SDK.
amazonka-mwaa library and test: Amazon MWAA SDK.
amazonka-neptune library and test: Amazon Neptune SDK.
amazonka-network-firewall library and test: Amazon Network Firewall SDK.
amazonka-networkmanager library and test: Amazon Network Manager SDK.
amazonka-nimble library and test: Amazon NimbleStudio SDK.
amazonka-oam library and test: Amazon CloudWatch Observability Access Manager SDK.
amazonka-omics library and test: Amazon Omics SDK.
amazonka-opensearch library and test: Amazon OpenSearch Service SDK.
amazonka-opensearchserverless library and test: Amazon OpenSearch Service Serverless SDK.
amazonka-opsworks library and test: Amazon OpsWorks SDK.
amazonka-opsworks-cm library and test: Amazon OpsWorks CM SDK.
amazonka-organizations library and test: Amazon Organizations SDK.
amazonka-outposts library and test: Amazon Outposts SDK.
amazonka-panorama library and test: Amazon Panorama SDK.
amazonka-personalize library and test: Amazon Personalize SDK.
amazonka-personalize-events library and test: Amazon Personalize Events SDK.
amazonka-personalize-runtime library and test: Amazon Personalize Runtime SDK.
amazonka-pi library and test: Amazon Performance Insights SDK.
amazonka-pinpoint library and test: Amazon Pinpoint SDK.
amazonka-pinpoint-email library and test: Amazon Pinpoint Email Service SDK.
amazonka-pinpoint-sms-voice library and test: Amazon Pinpoint SMS and Voice Service SDK.
amazonka-pinpoint-sms-voice-v2 library and test: Amazon Pinpoint SMS Voice V2 SDK.
amazonka-pipes library and test: Amazon EventBridge Pipes SDK.
amazonka-polly library and test: Amazon Polly SDK.
amazonka-pricing library and test: Amazon Price List Service SDK.
amazonka-privatenetworks library and test: Amazon Private 5G SDK.
amazonka-proton library and test: Amazon Proton SDK.
amazonka-qldb library and test: Amazon QLDB SDK.
amazonka-qldb-session library and test: Amazon QLDB Session SDK.
amazonka-quicksight library and test: Amazon QuickSight SDK.
amazonka-ram library and test: Amazon Resource Access Manager SDK.
amazonka-rbin library and test: Amazon Recycle Bin SDK.
amazonka-rds library and test: Amazon Relational Database Service SDK.
amazonka-rds-data library and test: Amazon RDS DataService SDK.
amazonka-redshift library and test: Amazon Redshift SDK.
amazonka-redshift-data library and test: Amazon Redshift Data API Service SDK.
amazonka-redshift-serverless library and test: Amazon Redshift Serverless SDK.
amazonka-rekognition library and test: Amazon Rekognition SDK.
amazonka-resiliencehub library and test: Amazon Resilience Hub SDK.
amazonka-resource-explorer-v2 library and test: Amazon Resource Explorer SDK.
amazonka-resourcegroups library and test: Amazon Resource Groups SDK.
amazonka-resourcegroupstagging library and test: Amazon Resource Groups Tagging API SDK.
amazonka-robomaker library and test: Amazon RoboMaker SDK.
amazonka-rolesanywhere library and test: Amazon IAM Roles Anywhere SDK.
amazonka-route53 library and test: Amazon Route 53 SDK.
amazonka-route53-autonaming library and test: Amazon Cloud Map SDK.
amazonka-route53-domains library and test: Amazon Route 53 Domains SDK.
amazonka-route53-recovery-cluster library and test: Amazon Route53 Recovery Cluster SDK.
amazonka-route53-recovery-control-config library and test: Amazon Route53 Recovery Control Config SDK.
amazonka-route53-recovery-readiness library and test: Amazon Route53 Recovery Readiness SDK.
amazonka-route53resolver library and test: Amazon Route 53 Resolver SDK.
amazonka-rum library and test: Amazon CloudWatch RUM SDK.
amazonka-s3 library and test: Amazon Simple Storage Service SDK.
amazonka-s3-encryption library and test: Amazon Simple Storage Service SDK - Client-Side Encryption.
amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
amazonka-s3outposts library and test: Amazon S3 on Outposts SDK.
amazonka-sagemaker library and test: Amazon SageMaker Service SDK.
amazonka-sagemaker-a2i-runtime library and test: Amazon Augmented AI Runtime SDK.
amazonka-sagemaker-edge library and test: Amazon Sagemaker Edge Manager SDK.
amazonka-sagemaker-featurestore-runtime library and test: Amazon SageMaker Feature Store Runtime SDK.
amazonka-sagemaker-geospatial library and test: Amazon SageMaker geospatial capabilities SDK.
amazonka-sagemaker-metrics library and test: Amazon SageMaker Metrics Service SDK.
amazonka-sagemaker-runtime library and test: Amazon SageMaker Runtime SDK.
amazonka-savingsplans library and test: Amazon Savings Plans SDK.
amazonka-scheduler library and test: Amazon EventBridge Scheduler SDK.
amazonka-schemas library and test: Amazon Schemas SDK.
amazonka-sdb library and test: Amazon SimpleDB SDK.
amazonka-secretsmanager library and test: Amazon Secrets Manager SDK.
amazonka-securityhub library and test: Amazon SecurityHub SDK.
amazonka-securitylake library and test: Amazon Security Lake SDK.
amazonka-serverlessrepo library and test: Amazon ServerlessApplicationRepository SDK.
amazonka-service-quotas library and test: Amazon Quotas SDK.
amazonka-servicecatalog library and test: Amazon Service Catalog SDK.
amazonka-servicecatalog-appregistry library and test: Amazon Service Catalog App Registry SDK.
amazonka-ses library and test: Amazon Simple Email Service SDK.
amazonka-sesv2 library and test: Amazon Simple Email Service SDK.
amazonka-shield library and test: Amazon Shield SDK.
amazonka-signer library and test: Amazon Signer SDK.
amazonka-simspaceweaver library and test: Amazon SimSpace Weaver SDK.
amazonka-sms library and test: Amazon Server Migration Service SDK.
amazonka-sms-voice library and test: Amazon Pinpoint SMS and Voice Service SDK.
amazonka-snow-device-management library and test: Amazon Snow Device Management SDK.
amazonka-snowball library and test: Amazon Import/Export Snowball SDK.
amazonka-sns library and test: Amazon Simple Notification Service SDK.
amazonka-sqs library and test: Amazon Simple Queue Service SDK.
amazonka-ssm library and test: Amazon Simple Systems Manager (SSM) SDK.
amazonka-ssm-contacts library and test: Amazon Systems Manager Incident Manager Contacts SDK.
amazonka-ssm-incidents library and test: Amazon Systems Manager Incident Manager SDK.
amazonka-ssm-sap library and test: Amazon Systems Manager for SAP SDK.
amazonka-sso library and test: Amazon Single Sign-On SDK.
amazonka-sso-admin library and test: Amazon Single Sign-On Admin SDK.
amazonka-sso-oidc library and test: Amazon SSO OIDC SDK.
amazonka-stepfunctions library and test: Amazon Step Functions SDK.
amazonka-storagegateway library and test: Amazon Storage Gateway SDK.
amazonka-sts library and test: Amazon Security Token Service SDK.
amazonka-support library and test: Amazon Support SDK.
amazonka-support-app library and test: Amazon Support App SDK.
amazonka-swf library and test: Amazon Simple Workflow Service SDK.
amazonka-synthetics library and test: Amazon Synthetics SDK.
amazonka-test library: Common functionality for Amazonka library test-suites.
amazonka-textract library and test: Amazon Textract SDK.
amazonka-timestream-query library and test: Amazon Timestream Query SDK.
amazonka-timestream-write library and test: Amazon Timestream Write SDK.
amazonka-transcribe library and test: Amazon Transcribe Service SDK.
amazonka-transfer library and test: Amazon Transfer Family SDK.
amazonka-translate library and test: Amazon Translate SDK.
amazonka-voice-id library and test: Amazon Voice ID SDK.
amazonka-waf library and test: Amazon WAF SDK.
amazonka-waf-regional library and test: Amazon WAF Regional SDK.
amazonka-wafv2 library and test: Amazon WAFV2 SDK.
amazonka-wellarchitected library and test: Amazon Well-Architected Tool SDK.
amazonka-wisdom library and test: Amazon Connect Wisdom Service SDK.
amazonka-workdocs library and test: Amazon WorkDocs SDK.
amazonka-worklink library and test: Amazon WorkLink SDK.
amazonka-workmail library and test: Amazon WorkMail SDK.
amazonka-workmailmessageflow library and test: Amazon WorkMail Message Flow SDK.
amazonka-workspaces library and test: Amazon WorkSpaces SDK.
amazonka-workspaces-web library and test: Amazon WorkSpaces Web SDK.
amazonka-xray library and test: Amazon X-Ray SDK.
aws library, programs and tests: Amazon Web Services (AWS) for Haskell
aws-arn library and test: Types and optics for manipulating Amazon Resource Names (ARNs)
aws-cloudfront-signed-cookies library, program and test: Generate signed cookies for AWS CloudFront
aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
aws-dynamodb-conduit library: Conduit-based interface for AWS DynamoDB
aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
aws-ec2-knownhosts library and programs: Capture and manage AWS EC2 known_host pubkeys
aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
aws-eventbridge-cron library, test and benchmark: AWS EventBridge cron, rate, and one-time parser with scheduler
aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
aws-kinesis library and test: Bindings for Amazon Kinesis
aws-lambda-haskell-runtime library and test: Haskell runtime for AWS Lambda
aws-lambda-haskell-runtime-wai library and test: Run wai applications on AWS Lambda
aws-lambda-runtime library and program: Haskell on AWS Lambda Runtime API
aws-larpi library: Package Haskell functions for easy use on AWS Lambda.
aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
aws-sdk library and test: AWS SDK for Haskell
aws-secrets library and test: Fetch data from AWS Secrets Manager
aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
aws-sns-verify library and test: Parse and verify AWS SNS messages
aws-spend-summary library and program: Extract recent daily AWS costs
awsspendsummary library and program: Extract recent daily AWS costs
credentials library and test: Secure Credentials Storage and Distribution
credentials-cli program: Secure Credentials Administration
ec2-unikernel program: A handy tool for uploading unikernels to Amazon's EC2.
eventful-dynamodb library and test: Library for eventful DynamoDB event stores
groot library, program and test: Command line utility to manage AWS ECS resources
hal library and test: A runtime environment for Haskell applications running on AWS Lambda.
hs-aws-lambda library and test: ...
hs-opentelemetry-instrumentation-amazonka library and test: OpenTelemetry instrumentation for the Amazonka AWS SDK
hs-opentelemetry-propagator-xray library and test: AWS X-Ray trace context propagation for OpenTelemetry.
infernal library: The Infernal Machine - An AWS Lambda Custom Runtime for Haskell
kerry library and test: Manage and abstract your packer configurations.
loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
minio-hs library, programs and tests: A MinIO Haskell Library for Amazon S3 compatible cloud storage.
mismi-core library and tests: AWS Library
mismi-kernel library and test: AWS Library
mismi-s3 library, tests and benchmark: AWS Library
mismi-s3-core library and test: AWS Library
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
s3-signer library and test: Pre-signed Amazon S3 URLs
serverless-haskell library and test: Deploying Haskell code onto AWS Lambda using Serverless
ses-html library: Send HTML formatted emails using Amazon's SES REST API with blaze
ses-html-snaplet library: Snaplet for the ses-html package
snaplet-ses-html library: Snaplet for the ses-html package
stratosphere library and test: EDSL for AWS CloudFormation
stratosphere-accessanalyzer library: Stratosphere integration for AWS AccessAnalyzer.
stratosphere-acmpca library: Stratosphere integration for AWS ACMPCA.
stratosphere-aiops library: Stratosphere integration for AWS AIOps.
stratosphere-amazonmq library: Stratosphere integration for AWS AmazonMQ.
stratosphere-amplify library: Stratosphere integration for AWS Amplify.
stratosphere-amplifyuibuilder library: Stratosphere integration for AWS AmplifyUIBuilder.
stratosphere-apigateway library: Stratosphere integration for AWS ApiGateway.
stratosphere-apigatewayv2 library: Stratosphere integration for AWS ApiGatewayV2.
stratosphere-appconfig library: Stratosphere integration for AWS AppConfig.
stratosphere-appflow library: Stratosphere integration for AWS AppFlow.
stratosphere-appintegrations library: Stratosphere integration for AWS AppIntegrations.
stratosphere-applicationautoscaling library: Stratosphere integration for AWS ApplicationAutoScaling.
stratosphere-applicationinsights library: Stratosphere integration for AWS ApplicationInsights.
stratosphere-applicationsignals library: Stratosphere integration for AWS ApplicationSignals.
stratosphere-appmesh library: Stratosphere integration for AWS AppMesh.
stratosphere-apprunner library: Stratosphere integration for AWS AppRunner.
stratosphere-appstream library: Stratosphere integration for AWS AppStream.
stratosphere-appsync library: Stratosphere integration for AWS AppSync.
stratosphere-apptest library: Stratosphere integration for AWS AppTest.
stratosphere-aps library: Stratosphere integration for AWS APS.
stratosphere-arcregionswitch library: Stratosphere integration for AWS ARCRegionSwitch.
stratosphere-arczonalshift library: Stratosphere integration for AWS ARCZonalShift.
stratosphere-ask library: Stratosphere integration for AWS ASK.
stratosphere-athena library: Stratosphere integration for AWS Athena.
stratosphere-auditmanager library: Stratosphere integration for AWS AuditManager.
stratosphere-autoscaling library: Stratosphere integration for AWS AutoScaling.
stratosphere-autoscalingplans library: Stratosphere integration for AWS AutoScalingPlans.
stratosphere-b2bi library: Stratosphere integration for AWS B2BI.
stratosphere-backup library: Stratosphere integration for AWS Backup.
stratosphere-backupgateway library: Stratosphere integration for AWS BackupGateway.
stratosphere-batch library: Stratosphere integration for AWS Batch.
stratosphere-bcmdataexports library: Stratosphere integration for AWS BCMDataExports.
stratosphere-bedrock library: Stratosphere integration for AWS Bedrock.
stratosphere-bedrockagentcore library: Stratosphere integration for AWS BedrockAgentCore.
stratosphere-billing library: Stratosphere integration for AWS Billing.
stratosphere-billingconductor library: Stratosphere integration for AWS BillingConductor.
stratosphere-budgets library: Stratosphere integration for AWS Budgets.
stratosphere-cassandra library: Stratosphere integration for AWS Cassandra.
stratosphere-ce library: Stratosphere integration for AWS CE.
stratosphere-certificatemanager library: Stratosphere integration for AWS CertificateManager.
stratosphere-chatbot library: Stratosphere integration for AWS Chatbot.
stratosphere-cleanrooms library: Stratosphere integration for AWS CleanRooms.
stratosphere-cleanroomsml library: Stratosphere integration for AWS CleanRoomsML.
stratosphere-cloud9 library: Stratosphere integration for AWS Cloud9.
stratosphere-cloudformation library: Stratosphere integration for AWS CloudFormation.
stratosphere-cloudfront library: Stratosphere integration for AWS CloudFront.
stratosphere-cloudtrail library: Stratosphere integration for AWS CloudTrail.
stratosphere-cloudwatch library: Stratosphere integration for AWS CloudWatch.
stratosphere-codeartifact library: Stratosphere integration for AWS CodeArtifact.
stratosphere-codebuild library: Stratosphere integration for AWS CodeBuild.
stratosphere-codecommit library: Stratosphere integration for AWS CodeCommit.
stratosphere-codeconnections library: Stratosphere integration for AWS CodeConnections.
stratosphere-codedeploy library: Stratosphere integration for AWS CodeDeploy.
stratosphere-codeguruprofiler library: Stratosphere integration for AWS CodeGuruProfiler.
stratosphere-codegurureviewer library: Stratosphere integration for AWS CodeGuruReviewer.
stratosphere-codepipeline library: Stratosphere integration for AWS CodePipeline.
stratosphere-codestar library: Stratosphere integration for AWS CodeStar.
stratosphere-codestarconnections library: Stratosphere integration for AWS CodeStarConnections.
stratosphere-codestarnotifications library: Stratosphere integration for AWS CodeStarNotifications.
stratosphere-cognito library: Stratosphere integration for AWS Cognito.
stratosphere-comprehend library: Stratosphere integration for AWS Comprehend.
stratosphere-config library: Stratosphere integration for AWS Config.
stratosphere-connect library: Stratosphere integration for AWS Connect.
stratosphere-connectcampaigns library: Stratosphere integration for AWS ConnectCampaigns.
stratosphere-connectcampaignsv2 library: Stratosphere integration for AWS ConnectCampaignsV2.
stratosphere-controltower library: Stratosphere integration for AWS ControlTower.
stratosphere-cur library: Stratosphere integration for AWS CUR.
stratosphere-customerprofiles library: Stratosphere integration for AWS CustomerProfiles.
stratosphere-databrew library: Stratosphere integration for AWS DataBrew.
stratosphere-datapipeline library: Stratosphere integration for AWS DataPipeline.
stratosphere-datasync library: Stratosphere integration for AWS DataSync.
stratosphere-datazone library: Stratosphere integration for AWS DataZone.
stratosphere-dax library: Stratosphere integration for AWS DAX.
stratosphere-deadline library: Stratosphere integration for AWS Deadline.
stratosphere-detective library: Stratosphere integration for AWS Detective.
stratosphere-devopsguru library: Stratosphere integration for AWS DevOpsGuru.
stratosphere-directoryservice library: Stratosphere integration for AWS DirectoryService.
stratosphere-dlm library: Stratosphere integration for AWS DLM.
stratosphere-dms library: Stratosphere integration for AWS DMS.
stratosphere-docdb library: Stratosphere integration for AWS DocDB.
stratosphere-docdbelastic library: Stratosphere integration for AWS DocDBElastic.
stratosphere-dsql library: Stratosphere integration for AWS DSQL.
stratosphere-dynamodb library: Stratosphere integration for AWS DynamoDB.
stratosphere-ec2 library: Stratosphere integration for AWS EC2.
stratosphere-ecr library: Stratosphere integration for AWS ECR.
stratosphere-ecs library: Stratosphere integration for AWS ECS.
stratosphere-efs library: Stratosphere integration for AWS EFS.
stratosphere-eks library: Stratosphere integration for AWS EKS.
stratosphere-elasticache library: Stratosphere integration for AWS ElastiCache.
stratosphere-elasticbeanstalk library: Stratosphere integration for AWS ElasticBeanstalk.
stratosphere-elasticloadbalancing library: Stratosphere integration for AWS ElasticLoadBalancing.
stratosphere-elasticloadbalancingv2 library: Stratosphere integration for AWS ElasticLoadBalancingV2.
stratosphere-elasticsearch library: Stratosphere integration for AWS Elasticsearch.
stratosphere-emr library: Stratosphere integration for AWS EMR.
stratosphere-emrcontainers library: Stratosphere integration for AWS EMRContainers.
stratosphere-emrserverless library: Stratosphere integration for AWS EMRServerless.
stratosphere-entityresolution library: Stratosphere integration for AWS EntityResolution.
stratosphere-events library: Stratosphere integration for AWS Events.
stratosphere-eventschemas library: Stratosphere integration for AWS EventSchemas.
stratosphere-evidently library: Stratosphere integration for AWS Evidently.
stratosphere-evs library: Stratosphere integration for AWS EVS.
stratosphere-finspace library: Stratosphere integration for AWS FinSpace.
stratosphere-fis library: Stratosphere integration for AWS FIS.
stratosphere-fms library: Stratosphere integration for AWS FMS.
stratosphere-forecast library: Stratosphere integration for AWS Forecast.
stratosphere-frauddetector library: Stratosphere integration for AWS FraudDetector.
stratosphere-fsx library: Stratosphere integration for AWS FSx.
stratosphere-gamelift library: Stratosphere integration for AWS GameLift.
stratosphere-globalaccelerator library: Stratosphere integration for AWS GlobalAccelerator.
stratosphere-glue library: Stratosphere integration for AWS Glue.
stratosphere-grafana library: Stratosphere integration for AWS Grafana.
stratosphere-greengrass library: Stratosphere integration for AWS Greengrass.
stratosphere-greengrassv2 library: Stratosphere integration for AWS GreengrassV2.
stratosphere-groundstation library: Stratosphere integration for AWS GroundStation.
stratosphere-guardduty library: Stratosphere integration for AWS GuardDuty.
stratosphere-healthimaging library: Stratosphere integration for AWS HealthImaging.
stratosphere-healthlake library: Stratosphere integration for AWS HealthLake.
stratosphere-iam library: Stratosphere integration for AWS IAM.
stratosphere-identitystore library: Stratosphere integration for AWS IdentityStore.
stratosphere-imagebuilder library: Stratosphere integration for AWS ImageBuilder.
stratosphere-inspector library: Stratosphere integration for AWS Inspector.
stratosphere-inspectorv2 library: Stratosphere integration for AWS InspectorV2.
stratosphere-internetmonitor library: Stratosphere integration for AWS InternetMonitor.
stratosphere-invoicing library: Stratosphere integration for AWS Invoicing.
stratosphere-iot library: Stratosphere integration for AWS IoT.
stratosphere-iotanalytics library: Stratosphere integration for AWS IoTAnalytics.
stratosphere-iotcoredeviceadvisor library: Stratosphere integration for AWS IoTCoreDeviceAdvisor.
stratosphere-iotevents library: Stratosphere integration for AWS IoTEvents.
stratosphere-iotfleethub library: Stratosphere integration for AWS IoTFleetHub.
stratosphere-iotfleetwise library: Stratosphere integration for AWS IoTFleetWise.
stratosphere-iotsitewise library: Stratosphere integration for AWS IoTSiteWise.
stratosphere-iotthingsgraph library: Stratosphere integration for AWS IoTThingsGraph.
stratosphere-iottwinmaker library: Stratosphere integration for AWS IoTTwinMaker.
stratosphere-iotwireless library: Stratosphere integration for AWS IoTWireless.
stratosphere-ivs library: Stratosphere integration for AWS IVS.
stratosphere-ivschat library: Stratosphere integration for AWS IVSChat.
stratosphere-kafkaconnect library: Stratosphere integration for AWS KafkaConnect.
stratosphere-kendra library: Stratosphere integration for AWS Kendra.
stratosphere-kendraranking library: Stratosphere integration for AWS KendraRanking.
stratosphere-kinesis library: Stratosphere integration for AWS Kinesis.
stratosphere-kinesisanalytics library: Stratosphere integration for AWS KinesisAnalytics.
stratosphere-kinesisanalyticsv2 library: Stratosphere integration for AWS KinesisAnalyticsV2.
stratosphere-kinesisfirehose library: Stratosphere integration for AWS KinesisFirehose.
stratosphere-kinesisvideo library: Stratosphere integration for AWS KinesisVideo.
stratosphere-kms library: Stratosphere integration for AWS KMS.
stratosphere-lakeformation library: Stratosphere integration for AWS LakeFormation.
stratosphere-lambda library: Stratosphere integration for AWS Lambda.
stratosphere-launchwizard library: Stratosphere integration for AWS LaunchWizard.
stratosphere-lex library: Stratosphere integration for AWS Lex.
stratosphere-licensemanager library: Stratosphere integration for AWS LicenseManager.
stratosphere-lightsail library: Stratosphere integration for AWS Lightsail.
stratosphere-location library: Stratosphere integration for AWS Location.
stratosphere-logs library: Stratosphere integration for AWS Logs.
stratosphere-lookoutequipment library: Stratosphere integration for AWS LookoutEquipment.
stratosphere-lookoutmetrics library: Stratosphere integration for AWS LookoutMetrics.
stratosphere-lookoutvision library: Stratosphere integration for AWS LookoutVision.
stratosphere-m2 library: Stratosphere integration for AWS M2.
stratosphere-macie library: Stratosphere integration for AWS Macie.
stratosphere-managedblockchain library: Stratosphere integration for AWS ManagedBlockchain.
stratosphere-mediaconnect library: Stratosphere integration for AWS MediaConnect.
stratosphere-mediaconvert library: Stratosphere integration for AWS MediaConvert.
stratosphere-medialive library: Stratosphere integration for AWS MediaLive.
stratosphere-mediapackage library: Stratosphere integration for AWS MediaPackage.
stratosphere-mediapackagev2 library: Stratosphere integration for AWS MediaPackageV2.
stratosphere-mediastore library: Stratosphere integration for AWS MediaStore.
stratosphere-mediatailor library: Stratosphere integration for AWS MediaTailor.
stratosphere-memorydb library: Stratosphere integration for AWS MemoryDB.
stratosphere-mpa library: Stratosphere integration for AWS MPA.
stratosphere-msk library: Stratosphere integration for AWS MSK.
stratosphere-mwaa library: Stratosphere integration for AWS MWAA.
stratosphere-neptune library: Stratosphere integration for AWS Neptune.
stratosphere-neptunegraph library: Stratosphere integration for AWS NeptuneGraph.
stratosphere-networkfirewall library: Stratosphere integration for AWS NetworkFirewall.
stratosphere-networkmanager library: Stratosphere integration for AWS NetworkManager.
stratosphere-notifications library: Stratosphere integration for AWS Notifications.
stratosphere-notificationscontacts library: Stratosphere integration for AWS NotificationsContacts.
stratosphere-oam library: Stratosphere integration for AWS Oam.
stratosphere-observabilityadmin library: Stratosphere integration for AWS ObservabilityAdmin.
stratosphere-odb library: Stratosphere integration for AWS ODB.
stratosphere-omics library: Stratosphere integration for AWS Omics.
stratosphere-opensearchserverless library: Stratosphere integration for AWS OpenSearchServerless.
stratosphere-opensearchservice library: Stratosphere integration for AWS OpenSearchService.
stratosphere-opsworks library: Stratosphere integration for AWS OpsWorks.
stratosphere-organizations library: Stratosphere integration for AWS Organizations.
stratosphere-osis library: Stratosphere integration for AWS OSIS.
stratosphere-panorama library: Stratosphere integration for AWS Panorama.
stratosphere-paymentcryptography library: Stratosphere integration for AWS PaymentCryptography.
stratosphere-pcaconnectorad library: Stratosphere integration for AWS PCAConnectorAD.
stratosphere-pcaconnectorscep library: Stratosphere integration for AWS PCAConnectorSCEP.
stratosphere-pcs library: Stratosphere integration for AWS PCS.
stratosphere-personalize library: Stratosphere integration for AWS Personalize.
stratosphere-pinpoint library: Stratosphere integration for AWS Pinpoint.
stratosphere-pinpointemail library: Stratosphere integration for AWS PinpointEmail.
stratosphere-pipes library: Stratosphere integration for AWS Pipes.
stratosphere-proton library: Stratosphere integration for AWS Proton.
stratosphere-qbusiness library: Stratosphere integration for AWS QBusiness.
stratosphere-qldb library: Stratosphere integration for AWS QLDB.
stratosphere-quicksight library: Stratosphere integration for AWS QuickSight.
stratosphere-ram library: Stratosphere integration for AWS RAM.
stratosphere-rbin library: Stratosphere integration for AWS Rbin.
stratosphere-rds library: Stratosphere integration for AWS RDS.
stratosphere-redshift library: Stratosphere integration for AWS Redshift.
stratosphere-redshiftserverless library: Stratosphere integration for AWS RedshiftServerless.
stratosphere-refactorspaces library: Stratosphere integration for AWS RefactorSpaces.
stratosphere-rekognition library: Stratosphere integration for AWS Rekognition.
stratosphere-resiliencehub library: Stratosphere integration for AWS ResilienceHub.
stratosphere-resourceexplorer2 library: Stratosphere integration for AWS ResourceExplorer2.
stratosphere-resourcegroups library: Stratosphere integration for AWS ResourceGroups.
stratosphere-robomaker library: Stratosphere integration for AWS RoboMaker.
stratosphere-rolesanywhere library: Stratosphere integration for AWS RolesAnywhere.
stratosphere-route53 library: Stratosphere integration for AWS Route53.
stratosphere-route53profiles library: Stratosphere integration for AWS Route53Profiles.
stratosphere-route53recoverycontrol library: Stratosphere integration for AWS Route53RecoveryControl.
stratosphere-route53recoveryreadiness library: Stratosphere integration for AWS Route53RecoveryReadiness.
stratosphere-route53resolver library: Stratosphere integration for AWS Route53Resolver.
stratosphere-rtbfabric library: Stratosphere integration for AWS RTBFabric.
stratosphere-rum library: Stratosphere integration for AWS RUM.
stratosphere-s3 library: Stratosphere integration for AWS S3.
stratosphere-s3express library: Stratosphere integration for AWS S3Express.
stratosphere-s3objectlambda library: Stratosphere integration for AWS S3ObjectLambda.
stratosphere-s3outposts library: Stratosphere integration for AWS S3Outposts.
stratosphere-s3tables library: Stratosphere integration for AWS S3Tables.
stratosphere-sagemaker library: Stratosphere integration for AWS SageMaker.
stratosphere-scheduler library: Stratosphere integration for AWS Scheduler.
stratosphere-sdb library: Stratosphere integration for AWS SDB.
stratosphere-secretsmanager library: Stratosphere integration for AWS SecretsManager.
stratosphere-securityhub library: Stratosphere integration for AWS SecurityHub.
stratosphere-securitylake library: Stratosphere integration for AWS SecurityLake.
stratosphere-servicecatalog library: Stratosphere integration for AWS ServiceCatalog.
stratosphere-servicecatalogappregistry library: Stratosphere integration for AWS ServiceCatalogAppRegistry.
stratosphere-servicediscovery library: Stratosphere integration for AWS ServiceDiscovery.
stratosphere-ses library: Stratosphere integration for AWS SES.
stratosphere-shield library: Stratosphere integration for AWS Shield.
stratosphere-signer library: Stratosphere integration for AWS Signer.
stratosphere-simspaceweaver library: Stratosphere integration for AWS SimSpaceWeaver.
stratosphere-smsvoice library: Stratosphere integration for AWS SMSVOICE.
stratosphere-sns library: Stratosphere integration for AWS SNS.
stratosphere-sqs library: Stratosphere integration for AWS SQS.
stratosphere-ssm library: Stratosphere integration for AWS SSM.
stratosphere-ssmcontacts library: Stratosphere integration for AWS SSMContacts.
stratosphere-ssmguiconnect library: Stratosphere integration for AWS SSMGuiConnect.
stratosphere-ssmincidents library: Stratosphere integration for AWS SSMIncidents.
stratosphere-ssmquicksetup library: Stratosphere integration for AWS SSMQuickSetup.
stratosphere-sso library: Stratosphere integration for AWS SSO.
stratosphere-stepfunctions library: Stratosphere integration for AWS StepFunctions.
stratosphere-supportapp library: Stratosphere integration for AWS SupportApp.
stratosphere-synthetics library: Stratosphere integration for AWS Synthetics.
stratosphere-systemsmanagersap library: Stratosphere integration for AWS SystemsManagerSAP.
stratosphere-timestream library: Stratosphere integration for AWS Timestream.
stratosphere-transfer library: Stratosphere integration for AWS Transfer.
stratosphere-verifiedpermissions library: Stratosphere integration for AWS VerifiedPermissions.
stratosphere-voiceid library: Stratosphere integration for AWS VoiceID.
stratosphere-vpclattice library: Stratosphere integration for AWS VpcLattice.
stratosphere-waf library: Stratosphere integration for AWS WAF.
stratosphere-wafregional library: Stratosphere integration for AWS WAFRegional.
stratosphere-wafv2 library: Stratosphere integration for AWS WAFv2.
stratosphere-wisdom library: Stratosphere integration for AWS Wisdom.
stratosphere-workspaces library: Stratosphere integration for AWS WorkSpaces.
stratosphere-workspacesinstances library: Stratosphere integration for AWS WorkspacesInstances.
stratosphere-workspacesthinclient library: Stratosphere integration for AWS WorkSpacesThinClient.
stratosphere-workspacesweb library: Stratosphere integration for AWS WorkSpacesWeb.
stratosphere-xray library: Stratosphere integration for AWS XRay.
wai-handler-hal library and test: Wrap WAI applications to run on AWS Lambda
wolf library and programs: Amazon Simple Workflow Service Wrapper.

Azure

azure-functions-worker library and test: Azure Functions Worker

B2BI

stratosphere-b2bi library: Stratosphere integration for AWS B2BI.

Backup

bkr library and program: Backup utility for backing up to cloud storage services (S3 only right now)
multiplicity program: Wrapper program for duplicity, adding config files
pinboard-notes-backup program: Back up the notes you've saved to Pinboard
stratosphere-backup library: Stratosphere integration for AWS Backup.

BackupGateway

stratosphere-backupgateway library: Stratosphere integration for AWS BackupGateway.

Barcode

zbar library: zbar bindings in Haskell

Base

baseless library and program: baseless claims
guid library and test: A simple wrapper around uuid

Batch

stratosphere-batch library: Stratosphere integration for AWS Batch.

BCMDataExports

stratosphere-bcmdataexports library: Stratosphere integration for AWS BCMDataExports.

Bedrock

stratosphere-bedrock library: Stratosphere integration for AWS Bedrock.

BedrockAgentCore

stratosphere-bedrockagentcore library: Stratosphere integration for AWS BedrockAgentCore.

Benchmark

concurrency-benchmarks program and benchmark: Benchmarks to compare concurrency APIs
streaming-benchmarks library and benchmarks: Measures and compares the performance of streaming libraries

Benchmarking

bench-graph library and test: Plot and compare benchmarks
bench-show library, program and tests: Show, plot and compare benchmark results
BenchmarkHistory library and program: Benchmark functions with history
chronos-bench library, program and benchmark: Benchmarking tool with focus on comparing results.
cloben program: Clone and benchmark Haskell cabal projects
containers-benchmark program: Extensive benchmark suite for containers package.
criterion library, program and tests: Robust, reliable performance measurement and analysis
criterion-measurement library: Criterion measurement functionality and associated types
criterion-plus library and test: Enhancement of the "criterion" benchmarking library
feed-gipeda library, program and test: CI service around gipeda
fibon programs: Tools for running and analyzing Haskell benchmarks
freer-simple-profiling library and test: Automatic profling of freer-simple programs
gauge tests and benchmark: small framework for performance measurement and analysis
ghc-stack-profiler library: RTS Callstack profiler for GHC.
ghc-stack-profiler-core library and test: Thread sample types and serialisation logic for `ghc-stack-profiler`.
ghc-stack-profiler-speedscope library and program: Convert eventlog messages from `ghc-stack-profiler` into a speedscope json.
hashtable-benchmark program: Benchmark of hash table implementations
hyperion library, programs and test: Reliable performance measurement with robust data export.
miniterion library, test and benchmark: Simple and lightweight benchmarking utilities
paramtree library and test: Generate labelled test/benchmark trees from sets of parameters
park-bench library: A quick-and-dirty, low-friction benchmark tool with immediate feedback
tasty-bench library and benchmark: Featherlight benchmark framework
tasty-papi test: Bencmarking using instruction counting

Big Data

karps library and tests: Haskell bindings for Spark Dataframes and Datasets
krapsh library and tests: Haskell bindings for Spark Dataframes and Datasets

Billing

stratosphere-billing library: Stratosphere integration for AWS Billing.

BillingConductor

stratosphere-billingconductor library: Stratosphere integration for AWS BillingConductor.

Binary

binary-orphans library and test: Compatibility package for binary; provides instances
binary-parser library and test: An efficient but limited parser API specialised to bytestrings
leb128-binary library, test and benchmark: Signed and unsigned LEB128 codec for binary library
lsh library, program and test: A simple ls clone with modern, colored formatting
streamly-binary library and test: Integration of streamly and binary

Bindings

bindings-codec2 library and program: Very low-level FFI bindings for Codec2
bindings-nettle library and test: bindings to nettle crypto library
cli-git library: Bindings to the git command-line interface
cli-nix library: Bindings to the nix command-line interface
gi-adwaita library: Adwaita bindings
gi-atk library: Atk bindings
gi-ayatana-appindicator3 library: libayatana-appindicator3 bindings
gi-cairo library: Cairo bindings
gi-clutter library: clutter GObject bindings
gi-cogl library: COGL GObject bindings
gi-coglpango library: Cogl Pango GObject bindings
gi-dazzle library: libdazzle bindings
gi-dbusmenu library: Dbusmenu bindings
gi-dbusmenugtk3 library: DbusmenuGtk bindings
gi-freetype2 library: freetype2 bindings
gi-gdk library: Gdk bindings (compatibility layer)
gi-gdk3 library: Gdk 3.x bindings
gi-gdk4 library: Gdk bindings
gi-gdkpixbuf library: GdkPixbuf bindings
gi-gdkx11 library: GdkX11 4.x bindings (compatibility layer)
gi-gdkx113 library: GdkX11 3.x bindings
gi-gdkx114 library: GdkX11 4.x bindings
gi-ges library: libges bindings
gi-ggit library: libgit2-glib bindings
gi-gio library: Gio bindings
gi-girepository library: GIRepository (gobject-introspection) bindings
gi-glib library: GLib bindings
gi-gmodule library: GModule bindings
gi-gobject library: GObject bindings
gi-graphene library: Graphene bindings
gi-gsk library: Gsk bindings
gi-gst library: GStreamer bindings
gi-gstapp library: GStreamerApp bindings
gi-gstaudio library: GStreamerAudio bindings
gi-gstbase library: GStreamerBase bindings
gi-gstpbutils library: GStreamer Plugins Base Utils bindings
gi-gsttag library: GStreamer Tag bindings
gi-gstvideo library: GStreamerVideo bindings
gi-gtk library: Gtk 4.x bindings (compatibility layer)
gi-gtk-layer-shell library: gtk-layer-shell bindings
gi-gtk3 library: Gtk 3.x bindings
gi-gtk4 library: Gtk 4.x bindings
gi-gtk4-layer-shell library: gtk4-layer-shell bindings
gi-gtkosxapplication library: GtkosxApplication bindings
gi-gtksheet library: GtkSheet bindings
gi-gtksource library: GtkSource 5.x bindings (compatibility layer)
gi-gtksource3 library: GtkSource 3.x bindings
gi-gtksource5 library: GtkSource 5.x bindings
gi-handy library: libhandy bindings
gi-harfbuzz library: HarfBuzz bindings
gi-ibus library: IBus bindings
gi-javascriptcore library: JavaScriptCore 6.x bindings (compatibility layer)
gi-javascriptcore4 library: JavaScriptCore 4.x bindings
gi-javascriptcore6 library: JavaScriptCore 6.x bindings
gi-json library: JSON GObject bindings
gi-keybinder library: Libkeybinder bindings
gi-nm library: NM bindings
gi-notify library: Libnotify bindings
gi-ostree library: OSTree bindings
gi-pango library: Pango bindings
gi-pangocairo library: PangoCairo bindings
gi-poppler library: Poppler bindings
gi-rsvg library: librsvg bindings
gi-secret library: Libsecret bindings
gi-soup library: Libsoup 3.x bindings (compatibility layer)
gi-soup2 library: Libsoup 2.4.x bindings
gi-soup3 library: Libsoup 3.x bindings
gi-vips library: libvips GObject bindings
gi-vte library: Vte bindings
gi-webkit library: WebKit 6.x bindings
gi-webkit2 library: WebKit2 bindings
gi-webkit2webextension library: WebKit2-WebExtension 4.x bindings
gi-webkitwebprocessextension library: WebKitWebProcessExtension 6.x bindings
gi-wireplumber library: WirePlumber bindings
gi-wnck library: Wnck bindings
gi-xlib library: xlib bindings
haskell-ffprobe library and test: Haskell bindings for ffprobe
haskell-gi-overloading library: Overloading support for haskell-gi
heystone library: Haskell bindings for the Keystone assembler framework
hs-tango library and benchmarks: Bindings to the Tango Controls system
nfc library and program: libnfc bindings
souffle-haskell library, test and benchmark: Souffle Datalog bindings for Haskell
TORCS library and program: Bindings to the TORCS vehicle simulator.
ViennaRNA-bindings library and test: ViennaRNA v2 bindings
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Bio

bbi library and test: Tools for reading Big Binary Indexed files, e.g., bigBed, bigWig
bio-sequence library and tests: Initial project template from stack
bioinformatics-toolkit library, test and benchmark: A collection of bioinformatics tools
cobot library, test and benchmark: ...
cobot-io library and test: Biological data file formats and IO
cobot-tools library and test: Biological data file formats and IO
HsHTSLib library and test: Bindings to htslib.
uniprot-kb library and test: UniProt-KB format parser

Bioinformatics

a50 program: Compare genome assemblies
adp-multi library, programs and test: ADP for multiple context-free languages
adp-multi-monadiccp library, program and test: Subword construction in adp-multi using monadiccp
ADPfusion library, programs and test: Efficient, high-level dynamic programming.
ADPfusionForest library, programs, test and benchmark: Dynamic programming on tree and forest structures
ADPfusionSet library and test: Dynamic programming for Set data structures.
AlignmentAlgorithms library: Collection of alignment algorithms
bamstats library and program: A program to extract various information from BAM alignmnet files.
BCMtools library and program: Big Contact Map Tools
bio library and programs: A bioinformatics library
bioace library: Library for reading ace assembly files
bioalign library: Data structures and helper functions for calculating alignments
Biobase library: Base library for bioinformatics
BiobaseBlast library and test: BLAST-related tools
BiobaseDotP library: Vienna / DotBracket / ExtSS parsers
BiobaseEnsembl library: Ensembl related datastructures and functions
BiobaseFasta library, program and test: streaming FASTA parser
BiobaseFR3D library: Importer for FR3D resources
BiobaseHTTP library: Libary to interface with the Bioinformatics HTTP services - Entrez Ensembl
BiobaseHTTPTools programs: Tools to query Bioinformatics HTTP services e.g. Entrez, Ensembl.
BiobaseInfernal library, program, test and benchmark: Infernal data structures and tools
BiobaseMAF library: Multiple Alignment Format
BiobaseNewick library, program and test: Newick file format parser.
BiobaseTrainingData library and program: RNA folding training data
BiobaseTurner library: Import Turner RNA parameters
BiobaseTypes library and test: Collection of types for bioinformatics
BiobaseVienna library: Import Vienna energy parameters
BiobaseXNA library, program and test: Efficient RNA/DNA/Protein Primary/Secondary Structure
biocore library: A bioinformatics library
biofasta library: Library for reading fasta sequence files
biofastq library: A library for reading FASTQ files
biohazard library: bioinformatics support library
BioHMM library: Libary for Hidden Markov Models in HMMER3 format.
biophd library: Library for reading phd sequence files
biopsl library and programs: Library and executables for working with PSL files
biosff library and programs: Library and executables for working with SFF files
biostockholm library and test: Parsing and rendering of Stockholm files (used by Pfam, Rfam and Infernal).
birch-beer library and program: Plot a colorful tree.
BlastHTTP library: Libary to interface with the NCBI blast REST interface
blastxml library: Library for reading Blast XML output
blosum library and program: BLOSUM generator
classify-frog programs: Classify sounds produced by Xenopus laevis
ClustalParser library, program and test: Libary for parsing Clustal tools output
clustertools programs: Tools for manipulating sequence clusters
CMCompare library and program: Infernal covariance model comparison
cmv library and programs: Detailed visualization of CMs, HMMs and their comparisions
collapse-duplication library and program: Collapse the duplication output into clones and return their frequencies.
convert-annotation library and program: ...
dephd programs: Analyze quality of nucleotide sequences.
differential library and program: Finds out whether an entity comes from different distributions (statuses).
diversity library and program: Quantify the diversity of a population
DnaProteinAlignment library and program: Frameshift-aware alignment of protein sequences with DNA sequences
elynx program: Validate and (optionally) redo ELynx analyses
elynx-markov library, test and benchmark: Simulate molecular sequences along trees
elynx-nexus library and test: Import and export Nexus files
elynx-seq library and test: Handle molecular sequences
elynx-tools library: Tools for ELynx
elynx-tree library, test and benchmark: Handle phylogenetic trees
EntrezHTTP library: Libary to interface with the NCBI Entrez REST service.
estreps programs: Repeats from ESTs
flower programs: Analyze 454 flowgrams (.SFF files)
flowsim programs: Simulate 454 pyrosequencing
Forestry library, program, test and benchmark: Comparison of trees and forests.
ForestStructures library, test and benchmark: Tree- and forest structures
FormalGrammars library and test: (Context-free) grammars in formal language theory
gact program: General Alignment Clustering Tool
Genbank library and program: Libary for processing the NCBI genbank format
Gene-CluEDO library, program and test: Hox gene clustering
GenussFold library, program and test: MCFGs for Genus-1 RNA Pseudoknots
GrammarProducts library, program and test: Grammar products and higher-dimensional grammars
heatitup library and program: Find and annotate ITDs.
heatitup-complete library and program: Find and annotate ITDs with assembly or read pair joining.
hemokit library, programs, test and benchmarks: Haskell port of the Emokit EEG project
hierarchical-spectral-clustering library and program: Hierarchical spectral clustering of a graph.
hPDB library: Protein Databank file format library
hPDB-examples programs and test: Examples for hPDB library
hs-samtools library and test: Read and write SAM, BAM, and CRAM files.
hTalos library and test: Parser, print and manipulate structures in PDB file format.
hyraxAbif library, program and test: Modules for parsing, generating and manipulating AB1 files.
integreat library and program: Integrate different assays.
korfu program: The Korfu ORF Utility
MC-Fold-DP library and program: Folding algorithm based on nucleotide cyclic motifs.
memexml library: Library for reading Meme XML output
mmtf library and test: Macromolecular Transmission Format implementation
modify-fasta library and program: Modify fasta (and CLIP) files in several optional ways
modularity library: Find the modularity of a network.
MutationOrder library, program and test: Most likely order of mutation events in RNA
normalize library and program: Normalize data using a variety of methods.
Nussinov78 library and program: Nussinov78 using the ADPfusion library.
PDBtools library and program: A library for analysis of 3-D protein coordinates
phybin library, program and test: ...
pipes-ordered-zip library and test: merge two ordered Producers into a new Producer
ploterific library and program: Basic plotting of tabular data for the command line.
rank-product library and program: Find the rank product of a data set.
rbr programs: Mask nucleotide (EST) sequences in Fasta format
RNAdesign library and program: Multi-target RNA sequence design
RNAdraw library and program: Draw RNA secondary structures
RNAFold library and programs: RNA secondary structure prediction
RNAFoldProgs programs: RNA secondary structure folding
RNAlien library and programs: Unsupervized construction of RNA family models
RNAwolf library and programs: RNA folding with non-canonical basepairs and base-triplets.
samtools library and program: Binding to the C samtools library
samtools-conduit library and program: Conduit interface to SAM/BAM format files through samtools
samtools-enumerator library: Enumerator interface to SamTools library
samtools-iteratee library and program: Iteratee interface to SamTools library
SelectSequencesFromMSA library and program: Selects a representative subset of sequences from multiple sequence alignment.
seqloc library and test: Handle sequence locations for bioinformatics
seqloc-datafiles library, programs and tests: Read and write BED and GTF format genome annotations
sequence-formats library and test: A package with basic parsing utilities for several Bioinformatic data formats.
sequenceTools library, programs and test: A package with tools for processing DNA sequencing data
sgrep program: Sgrep - grep Fasta files for sequences matching a regular expression
simseq program: Simulate sequencing with different models for priming and errors
slynx library and program: Handle molecular sequences
smiles library and tests
StockholmAlignment library: Libary for Stockholm aligmnent format
subsample library and program: Subsample data.
Taxonomy library: Libary for parsing, processing and vizualization of taxonomy data
TaxonomyTools programs: Tool for parsing, processing, comparing and visualizing taxonomy data
tex-join-bib library and program: Compile separate tex files with the same bibliography.
tlynx library and program: Handle phylogenetic trees
too-many-cells library and program: Cluster single cells and analyze cell clade relationships.
trimpolya program: Search for, annotate and trim poly-A tail
twobitreader library and program: reader for the 2bit file format
varan programs: Process mpileup output to identify significant differences
vcf library and test: A package to parse VCF files inspired in similar python libraries
ViennaRNA-bindings library and test: ViennaRNA v2 bindings
ViennaRNA-extras library and test: ViennaRNA v2 extensions
ViennaRNAParser library and test: Libary for parsing ViennaRNA package output
xml2x program: Convert BLAST output in XML format to CSV or HTML
xsact programs: Cluster EST sequences
zsyntax library and test: Automated theorem prover for the Zsyntax biochemical calculus

Bit

bitfield library and test: Generic and easy to use haskell bitfields
bits-extra library, tests and benchmark: Useful bitwise operations
bits-show library and test: Showing data as strings of 0 and 1
hw-balancedparens library, program, tests and benchmark: Balanced parentheses
hw-bits library, tests and benchmark: Bit manipulation
hw-dump library, program, tests and benchmark: File Dump
hw-rankselect library, program, tests and benchmark: Rank-select
hw-rankselect-base library, tests and benchmark: Rank-select base
hw-simd library, tests and benchmark: SIMD library
hw-simd-cli library, program and test: SIMD library
hw-string-parse library and tests: String parser

Bit Vectors

bit-array library and test: A bit array (aka bitset, bitmap, bit vector) API for numeric types
bit-vector library and test: Simple bit vectors for Haskell
bitvec library, test and benchmark: Space-efficient bit vectors
bitwise library, test and benchmark: fast multi-dimensional unboxed bit packed Bool arrays
boolector library and tests: Haskell bindings for the Boolector SMT solver
bv library and program: Bit-vector arithmetic library
bv-little library, test and benchmarks: Efficient little-endian bit vector library
bv-sized library and test: a bitvector datatype that is parameterized by the vector width
bv-sized-lens library: Well-typed lenses for bv-sized bitvectors.
hz3 library, program and test: Bindings for the Z3 Theorem Prover
sbv library, tests and benchmark: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
sbv-program library and test: Component-based program synthesis using SBV
z3 library, program and test: Bindings for the Z3 Theorem Prover

Bitcoin

bitcoin-hs library and test: Partial implementation of the Bitcoin protocol (as of 2013)
bitcoin-payment-channel library, test and benchmark: Instant, two-party Bitcoin payments
bitcoin-rpc library and test: Library to communicate with the Satoshi Bitcoin daemon
bitx-bitcoin library and tests: A Haskell library for working with the BitX bitcoin exchange.
btc-lsp library, programs and test: Lightning service provider
clplug library and test: Easily add functionality to your lightning node
electrs-client library and test: Electrs client library for Haskell
haskell-opentimestamps library and test: Haskell implementation of OpenTimestamps
haskell-opentimestamps-client library and program: Haskell implementation of a basic OpenTimestamps client
haskoin library and test: Implementation of the Bitcoin protocol.
haskoin-core library and test: Bitcoin & Bitcoin Cash library for Haskell
haskoin-crypto library and test: Implementation of Bitcoin cryptographic primitives.
haskoin-node library and test: P2P library for Bitcoin and Bitcoin Cash
haskoin-protocol library and test: Implementation of the Bitcoin network protocol messages
haskoin-script library and test: Implementation of Bitcoin script parsing and evaluation
haskoin-store library, program and test: Storage and index for Bitcoin and Bitcoin Cash
haskoin-store-data library and test: Data for Haskoin Store
haskoin-util library and test: Utility functions for the Network.Haskoin project
haskoin-wallet library, program and test: Lightweight CLI wallet for Bitcoin and Bitcoin Cash
lnd-client library, program and test: Lightning Network Daemon (LND) client library for Haskell
SCRIPTWriter library and program: ESCRIPT: a human friendly language for programming Bitcoin scripts

Bits

bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring

Blockchain

blockchain library and test: Generic blockchain implementation.
cleveland library and test: Testing framework for Morley.
dfinity-radix-tree library, program and test: A generic data integrity layer.
morley-client library, program and test: Client to interact with the Tezos blockchain
solana-haskell-sdk library, program and tests: Solana SDK: transaction building, signing, program clients, and JSON-RPC.
utxorpc library: Generated code for a gRPC interface for UTxO Blockchains
utxorpc-client library, programs and test: An SDK for clients of the UTxO RPC specification.
utxorpc-server library, program and test: An SDK for UTxO RPC services.
web3-tools library and test: Tools for working with Crypto/Web3

Blog

blagda library and program: Shake frontend for Agda blogging

Book

algebra-driven-design library: Companion library for the book Algebra-Driven Design by Sandy Maguire

Browser

diohsc program: Gemini client
GoogleSuggest library: Interface to Google Suggest API
hbro library and program: Minimal extensible web-browser
hbro-contrib library and program: Third-party extensions to hbro.
manatee-browser library and program: Browser extension for Manatee.
web-browser-in-haskell library: Web Browser In Haskell
webdriver library, program and test: a Haskell client for the Selenium WebDriver protocol
webdriver-snoy library and test: a Haskell client for the Selenium WebDriver protocol (deprecated)
webdriver-wrapper library: Wrapper around the webdriver package that automatically manages Selenium

BSD

bsd-sysctl library: Access to the BSD sysctl(3) interface
ghc-stack-annotations library and test: RTS Callstack annotation library

BSD3

co-log-effectful library and test: effectful log effect using co-log-core
easytensor-vulkan library: Use easytensor with vulkan-api.
haskell-src-exts-sc library and program: Pretty print haskell code with comments
hinfo library, program and test: Command Line App With Info on your Haskell App
HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.
io-embed library and test: Use Template Haskell to embed the result of an IO computation.
katip-effectful library and test: Katip integration for Effectful
polysemy-keyed-state library and test: Effect for a set of stateful values indexed by a type of keys
tasty-grading-system library: Grade your tasty-testsuite.
vulkan-api library: Low-level low-overhead vulkan api bindings

Bsparse

bsparse library: A simple unassuming parser for bytestring

Budgets

stratosphere-budgets library: Stratosphere integration for AWS Budgets.

Build

chs-cabal library: Cabal with c2hs dependencies
dependency library, test and benchmark: Dependency resolution for package management
Grow library: A declarative make-like interpreter.
hix library, program and test: Haskell/Nix development build tools
language-ninja library, programs and tests: A library for dealing with the Ninja build language.
neko-lib library and test: Neko VM code generation and disassembly library
shake-ats library: Utilities for building ATS projects with shake
shake-futhark library: Dependency tracking for Futhark
uniform-shake library: uniform wrapper for shake
up-grade program: Software management tool

Build Tool

bazel-coverage-report-renderer program: HTML Coverage Reports for Rules_Haskell
bazel-runfiles library and program: Locate Bazel runfiles location
elm-make program: A build tool for Elm projects

Builders

bytestring-strict-builder library, test and benchmark: An efficient strict bytestring builder
text-builder library, test and benchmark: Efficient and flexible strict text builder
text-builder-core library, test and benchmark: Internals of "text-builder"
text-builder-dev library and test: Edge of developments for "text-builder"
text-builder-lawful-conversions library and test: Orphan instances of "lawful-conversions" for "text-builder"
text-builder-time library: Various formats for "time" in terms of "text-builder"

Building

boilerplate library, program and test: Generate Haskell boilerplate.
ghcflags library: Dump the ghc flags during compilation
hsinspect library and program: Inspect Haskell source files.
hsinspect-lsp library, program and test: LSP interface over the hsinspect binary.
stack2cabal library and program: Convert stack projects to cabal.project + cabal.project.freeze
stackage-to-hackage library and program: Convert stack.yaml to cabal.project + cabal.project.freeze

Bundle

asset-bundle library: A build-time Cabal library that bundles executables with assets
cabal-auto-expose library: Build time library that autodetects exposed modules

Business

bookkeeping library and tests: A module for bookkeeping by double entry.
bookkeeping-jp library and tests: Helper functions for Japanese bookkeeping.
docusign-base library: Low-level bindings to the DocuSign API
docusign-base-minimal library: Low-level bindings to the DocuSign API (only what is necessary for docusign-client)
docusign-client library: Client bindings for the DocuSign API
docusign-example program: DocuSign examples
ochintin-daicho library and tests: A module to manage payroll books for Japanese companies.
work-time library and program: A library for parsing a chat-based work hour reporting scheme.

Bytes

bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring

ByteString

bytestring-strict-builder library, test and benchmark: An efficient strict bytestring builder
bytestring-tree-builder library, test and benchmark: A very efficient ByteString builder implementation based on the binary tree
from-string library and tests: Instances of 'From' for common string types
ListLike library and test: Generalized support for list-like structures
pathological-bytestrings library: Pathological ByteStrings for testing
streamly-bytestring library, test and benchmark: Library for streamly and bytestring interoperation.
stringable library: A Stringable type class, in the spirit of Foldable and Traversable
type-level-bytestrings library and test: Tools for manipulating type-level bytes and bytestrings

ByteStrings

base58-bytestring library, test and benchmark: Implementation of BASE58 transcoding for ByteStrings

BZip

bzip-signature library: Backpack signature for BZip compression

C

C-structs library and tests: C-Structs implementation for Haskell
cdeps library, program, test and benchmark: Extract dependencies from C code.
cpkg library, program and test: Build tool for C
gmpint library: GMP integer conversions
shake-c library: Library for building C code with shake
zbar library: zbar bindings in Haskell

C#

tree-sitter-c-sharp library: Tree-sitter grammar/parser for C#

Cabal

ats-setup library: ATS scripts for Cabal builds
autopack library: Custom Setup to automate package modules discovery
chs-cabal library: Cabal with c2hs dependencies
policeman library, program and test: Haskell PVP version adviser

Cache

cache library and test: An in-memory key/value store with expiration support
cache-effectful library and test: A Cache effect for the effectful ecosystem.
cache-polysemy library and test: cached hashmaps
fcache library and test: Cache a function (a -> b)
Infinitree library and benchmark: Infinitely deep trees for lazy stateless memoization
polling-cache library and test: Cache infrequently updated data for simpler distributed systems.
rediscaching-haxl library: Combine redis caching and haxl.

Caching

expiring-cache-map library and tests: General purpose simple caching.
Infinitree library and benchmark: Infinitely deep trees for lazy stateless memoization

Calligraphy

brush-strokes library, tests and benchmarks: Toolkit for Bézier curves and brush stroking
brush-stroking library: Brush strokes document model and renderer

CAPTCHA

antigate library: Interface for antigate.com captcha recognition API

Cardano

blockfrost-api library and test: API definitions for blockfrost.io
blockfrost-client library, program and test: blockfrost.io basic client
blockfrost-client-core library: blockfrost.io common client definitions / instances
cardano-addresses library, program and test: Utils for constructing a command-line on top of cardano-addresses.
cardano-coin-selection library and test: Algorithms for coin selection and fee balancing.
cardano-transactions library, program and test: Library utilities for constructing and signing Cardano transactions.
utxorpc library: Generated code for a gRPC interface for UTxO Blockchains
utxorpc-client library, programs and test: An SDK for clients of the UTxO RPC specification.
utxorpc-server library, program and test: An SDK for UTxO RPC services.

Cashflow

Hastructure library, program and test: Cashflow modeling library for structured finance

Cassandra

stratosphere-cassandra library: Stratosphere integration for AWS Cassandra.

Cast

type-iso library: Typeclasses for injective relations and isomorphisms between types.

Catgirls

nekos-best library: Unofficial nekos.best API wrapper

CE

stratosphere-ce library: Stratosphere integration for AWS CE.

CertificateManager

stratosphere-certificatemanager library: Stratosphere integration for AWS CertificateManager.

CGI

cgi-utils library: Simple modular utilities for CGI/FastCGI (sessions, etc.)

Chaos Music

AlgoRhythm library, program and test: Algorithmic music composition

Charts

chart-unit library and test: Native haskell charts.
Histogram library
interval-patterns library and test: Intervals, and monoids thereof
plotlyhs library: Haskell bindings to Plotly.js
textPlot library: Plot functions in text.

Chat

matterhorn library, program and test: Terminal client for the Mattermost chat system
simplexmq library, programs and test: SimpleXMQ message broker

Chatbot

stratosphere-chatbot library: Stratosphere integration for AWS Chatbot.

Chemistry

chemical-equation programs: Balance chemical equations
ConClusion library and program: Cluster algorithms, PCA, and chemical conformere analysis
hall-symbols library and tests: Symmetry operations generater of Hall Symbols
isotope library and test: Isotopic masses and relative abundances.
matrix-as-xyz library and tests: Read and Display Jones-Faithful notation for spacegroup and planegroup
radium library and test: Chemistry
radium-formula-parser library and test: Chemistry
science-constants library: Mathematical/physical/chemical constants
science-constants-dimensional library: Mathematical/physical/chemical constants
seitz-symbol library and tests: Read and Display Seitz Symbol
significant-figures library, program and test: Calculate expressions involving significant figures.
symmetry-operations-symbols library and tests: Derivation of symbols and coordinate triplets Library

Chess Engine

turncoat library, program and test: Elegant UCI chess engine

CHs

chs-deps library, test and benchmark: c2hs dependency analyzer

CI

hercules-ci-agent library, programs and test: Runs Continuous Integration tasks on your machines
hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
hercules-ci-cnix-expr library and test: Bindings for the Nix evaluator
packcheck library, test and benchmark: Universal build and CI testing for Haskell packages

Classes

closed-classes library: Closed type class declarations

Classification

HasGP library: A Haskell library for inference using Gaussian processes
hslibsvm library: A FFI binding to libsvm.
HSvm library: Haskell Bindings for libsvm
liblinear-enumerator library: liblinear iteratee.

Clckwrks

clckwrks library: A secure, reliable content management system (CMS) and blogging platform
clckwrks-cli library and program: a command-line interface for adminstrating some aspects of clckwrks
clckwrks-dot-com programs: clckwrks.com
clckwrks-plugin-bugs library: bug tracking plugin for clckwrks
clckwrks-plugin-ircbot library: ircbot plugin for clckwrks
clckwrks-plugin-mailinglist library: mailing list plugin for clckwrks
clckwrks-plugin-media library: media plugin for clckwrks
clckwrks-plugin-page library: support for CMS/Blogging in clckwrks
clckwrks-plugin-redirect library and program: support redirects for CMS/Blogging in clckwrks
clckwrks-theme-bootstrap library: simple bootstrap based template for clckwrks
clckwrks-theme-clckwrks library: simple bootstrap based template for clckwrks
clckwrks-theme-geo-bootstrap library: geo bootstrap based template for clckwrks

CleanRooms

stratosphere-cleanrooms library: Stratosphere integration for AWS CleanRooms.

CleanRoomsML

stratosphere-cleanroomsml library: Stratosphere integration for AWS CleanRoomsML.

CLI

arxiv-client-cli program: Command line tool to search and download papers from arXiv.org
bunz library, program and test: CLI tool to beautify JSON string.
bytepatch library, program and test: Patch byte-representable data in a bytestream
caliper library, program and test: A time tracker that is way too precise.
cli library and program: CLI
cli-arguments library: A library to process command line arguments in some more convenient way.
cli-arguments-strict library: A library to process command line arguments in some more convenient way.
codeforces-cli library and program: Command line interface to interact with Codeforces.
commander-cli library, program and test: A command line argument/option parser library
dobutok library: Creates the time intervals for CLI changing messages on the screen.
dobutokO library: The library is intended to print updated messages on the terminal screen.
docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
ethereum-analyzer-cli library and programs: A CLI frontend for ethereum-analyzer.
extensioneer program: Inspect extensions in cabal and hpack files
file-templates program: Use templates for files and directories
gen-passwd program: Create wordlist-based passwords easily
gli library, program and test: Tiny cli to fetch PR info from gitlab
harg library and tests: Haskell program configuration using higher kinded data
hastily library, program and test: A program to download subtitle files.
hb3sum program: A command line tool to compute BLAKE3 hashes.
herms program: A command-line manager for delicious kitchen recipes
hifi library, program and test: WiFi connection script generator
hinfo library, program and test: Command Line App With Info on your Haskell App
hinit library, program and test: Generic project initialization tool
hsendxmpp program: sendxmpp clone, sending XMPP messages via CLI
intel-powermon program: Poll modern Intel/AMD CPU power consumption on Linux via RAPL.
ip6addr program: Commandline tool to deal with IPv6 address text representations
iris library and test: Haskell CLI framework
jot program: Tiny markdown notebook
life-sync library, program and test: Synchronize personal configs across multiple machines.
llama-cpp-haskell library and program: Haskell bindings for the llama.cpp llama-server and a simple CLI
mangrove-cli library and test: Build CLI argument parsers using Applicative.
mit-3qvpPyAi6mH library and program: A git wrapper with a streamlined UX
mmark-cli program: Command line interface to the MMark markdown processor
morpheus-graphql-cli program and test: Morpheus GraphQL CLI
morpheus-graphql-code-gen library and program: Morpheus GraphQL CLI
morpheus-graphql-code-gen-utils library: Morpheus GraphQL CLI
neolua program: A CLI adapter to map Lua's CLI to Neovim's CLI for lua interpretation.
okf-cli library, program and test: Command-line interface for Open Knowledge Format bundles
optima library and test: Simple command line interface arguments parser
optparse-applicative library and test: Utilities and combinators for parsing command line options
optparse-applicative-cmdline-util library: Utility functions for working with optparse-applicative
optparse-applicative-dex library: Extra functions for working with optparse-applicative
optparse-applicative-simple library and test: Simple command line interface arguments parser
optparse-enum library: An enum-text based toolkit for optparse-applicative
optparse-version library
optstream library and test: Command line option parsing library with a twice applicative interface
otp-authenticator library and program: OTP Authenticator (a la google) command line client
password-cli program: use password from your CLI
pinboard-notes-backup program: Back up the notes you've saved to Pinboard
platinum-parsing library, program and test: General Framework for compiler development.
ploton library, program and test: A useful cli tool to draw figures
prompt-hs library: A user-friendly, dependently-typed library for asking your users questions
riichi-scoring library, program and test: A CLI tool for interpreting and scoring Riichi Mahjong hands.
rob library, program and test: Simple projects generator
summoner library, programs and test: ...
symantic-cli library: Symantics for parsing and documenting a CLI
tasklite program and test: CLI task / todo list manager with SQLite backend
tasklite-core library, test and benchmark: CLI task / todo list manager with SQLite backend
tldr library, program and test: Haskell tldr client
translate-cli library, program and test: Translation cli tool
trial-optparse-applicative library: Trial helper functions for optparse-applicative
unused library, program and test: A command line tool to identify unused code.
yiyd library, program and test

CLI Tool

airgql library, program and test: Automatically generate a GraphQL API for an SQLite database
eddie program: Command line file filtering with haskell
frequent-substring library, program and test: Identifies and replaces frequent subsequences in long strings
git-cuk library and program: Haskell Git Helper Tool
hit-on library, program and test: Haskell Git Helper Tool
life-sync library, program and test: Synchronize personal configs across multiple machines.
smh library, program and test: String manipulation tool written in haskell
summoner library, programs and test: ...

ClickHouse

ClickHaskell library: ClickHouse driver
ClickHaskell-tls library: ClickHaskell TLS extension

Client

approveapi library and test: ApproveAPI Haskell Client
hs-tango library and benchmarks: Bindings to the Tango Controls system
jobqueue library and test: A job queue library
morpheus-graphql-client library and test: Morpheus GraphQL Client
recurly-client library: Client for Recurly subscription management
redis-job-queue library: Simple priority job queue backed by Redis.
scidb-hquery library and program: Haskell query for SciDB via shim
stomp-conduit library: Stompl Conduit Client
stomp-patterns library: Stompl MOM Stomp Patterns
stomp-queue library: Stompl Client Library

Clipboard

helic library, program and test: Clipboard Manager

Closure

static library and tests: Type-safe and interoperable static values and closures

Cloud

amazonka-iam-policy library and tests: Amazon IAM Policy Document DSL and Combinators.
amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
api-tools library, programs, test and benchmark: DSL for generating API boilerplate and docs
arion-compose library, program and test: Run docker-compose with help from Nix/NixOS
aws library, programs and tests: Amazon Web Services (AWS) for Haskell
aws-arn library and test: Types and optics for manipulating Amazon Resource Names (ARNs)
aws-cloudfront-signed-cookies library, program and test: Generate signed cookies for AWS CloudFront
aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
aws-configuration-tools library: Configuration types, parsers & renderers for AWS services
aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
aws-eventbridge-cron library, test and benchmark: AWS EventBridge cron, rate, and one-time parser with scheduler
aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
aws-kinesis library and test: Bindings for Amazon Kinesis
aws-kinesis-client library and program: A producer & consumer client library for AWS Kinesis
aws-kinesis-reshard library and program: Reshard AWS Kinesis streams in response to Cloud Watch metrics
aws-lambda library: Haskell bindings for AWS Lambda
aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
aws-sdk library and test: AWS SDK for Haskell
aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
aws-sns-verify library and test: Parse and verify AWS SNS messages
azure-functions-worker library and test: Azure Functions Worker
backblaze-b2-hs library, program and test: A client library to access Backblaze B2 cloud storage in Haskell.
cloud-seeder library and test: A tool for interacting with AWS CloudFormation
firebase-database library, test and benchmark: Google Firebase Database SDK
gogol-admin-emailmigration library: Google Email Migration API v2 SDK.
gogol-affiliates library: Google Affiliate Network SDK.
gogol-autoscaler library: Google Compute Engine Autoscaler SDK.
gogol-cloudmonitoring library: Google Cloud Monitoring SDK.
gogol-freebasesearch library: Google Freebase Search SDK.
gogol-latencytest library: Google Cloud Network Performance Monitoring SDK.
gogol-maps-coordinate library: Google Maps Coordinate SDK.
gogol-maps-engine library: Google Maps Engine SDK.
gogol-photoslibrary library: Google Photos Library SDK.
gogol-prediction library: Google Prediction SDK.
gogol-resourceviews library: Google Compute Engine Instance Groups SDK.
gogol-taskqueue library: Google TaskQueue SDK.
gogol-useraccounts library: Google Cloud User Accounts SDK.
groot library, program and test: Command line utility to manage AWS ECS resources
hadoop-streaming library and test: A simple Hadoop streaming library
hdo library and program: A Digital Ocean client in Haskell
hetzner library and program: Hetzner Cloud and DNS library.
kerry library and test: Manage and abstract your packer configurations.
linode library and test: Bindings to the Linode API
loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
micro-gateway library and program: A Micro service gateway.
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
pubnub library, programs and test: PubNub Haskell SDK
push-notify library: A server-side library for sending push notifications.
push-notify-apn library, program and test: Send push notifications to mobile iOS devices
push-notify-ccs library: ...
push-notify-general library: A general library for sending/receiving push notif. through dif. services.
scheduling library and program: An interview scheduler using constraint satisfaction and Google Sheets
serverless-haskell library and test: Deploying Haskell code onto AWS Lambda using Serverless
stratosphere library and test: EDSL for AWS CloudFormation
stratosphere-accessanalyzer library: Stratosphere integration for AWS AccessAnalyzer.
stratosphere-acmpca library: Stratosphere integration for AWS ACMPCA.
stratosphere-aiops library: Stratosphere integration for AWS AIOps.
stratosphere-amazonmq library: Stratosphere integration for AWS AmazonMQ.
stratosphere-amplify library: Stratosphere integration for AWS Amplify.
stratosphere-amplifyuibuilder library: Stratosphere integration for AWS AmplifyUIBuilder.
stratosphere-apigateway library: Stratosphere integration for AWS ApiGateway.
stratosphere-apigatewayv2 library: Stratosphere integration for AWS ApiGatewayV2.
stratosphere-appconfig library: Stratosphere integration for AWS AppConfig.
stratosphere-appflow library: Stratosphere integration for AWS AppFlow.
stratosphere-appintegrations library: Stratosphere integration for AWS AppIntegrations.
stratosphere-applicationautoscaling library: Stratosphere integration for AWS ApplicationAutoScaling.
stratosphere-applicationinsights library: Stratosphere integration for AWS ApplicationInsights.
stratosphere-applicationsignals library: Stratosphere integration for AWS ApplicationSignals.
stratosphere-appmesh library: Stratosphere integration for AWS AppMesh.
stratosphere-apprunner library: Stratosphere integration for AWS AppRunner.
stratosphere-appstream library: Stratosphere integration for AWS AppStream.
stratosphere-appsync library: Stratosphere integration for AWS AppSync.
stratosphere-apptest library: Stratosphere integration for AWS AppTest.
stratosphere-aps library: Stratosphere integration for AWS APS.
stratosphere-arcregionswitch library: Stratosphere integration for AWS ARCRegionSwitch.
stratosphere-arczonalshift library: Stratosphere integration for AWS ARCZonalShift.
stratosphere-ask library: Stratosphere integration for AWS ASK.
stratosphere-athena library: Stratosphere integration for AWS Athena.
stratosphere-auditmanager library: Stratosphere integration for AWS AuditManager.
stratosphere-autoscaling library: Stratosphere integration for AWS AutoScaling.
stratosphere-autoscalingplans library: Stratosphere integration for AWS AutoScalingPlans.
stratosphere-b2bi library: Stratosphere integration for AWS B2BI.
stratosphere-backup library: Stratosphere integration for AWS Backup.
stratosphere-backupgateway library: Stratosphere integration for AWS BackupGateway.
stratosphere-batch library: Stratosphere integration for AWS Batch.
stratosphere-bcmdataexports library: Stratosphere integration for AWS BCMDataExports.
stratosphere-bedrock library: Stratosphere integration for AWS Bedrock.
stratosphere-bedrockagentcore library: Stratosphere integration for AWS BedrockAgentCore.
stratosphere-billing library: Stratosphere integration for AWS Billing.
stratosphere-billingconductor library: Stratosphere integration for AWS BillingConductor.
stratosphere-budgets library: Stratosphere integration for AWS Budgets.
stratosphere-cassandra library: Stratosphere integration for AWS Cassandra.
stratosphere-ce library: Stratosphere integration for AWS CE.
stratosphere-certificatemanager library: Stratosphere integration for AWS CertificateManager.
stratosphere-chatbot library: Stratosphere integration for AWS Chatbot.
stratosphere-cleanrooms library: Stratosphere integration for AWS CleanRooms.
stratosphere-cleanroomsml library: Stratosphere integration for AWS CleanRoomsML.
stratosphere-cloud9 library: Stratosphere integration for AWS Cloud9.
stratosphere-cloudformation library: Stratosphere integration for AWS CloudFormation.
stratosphere-cloudfront library: Stratosphere integration for AWS CloudFront.
stratosphere-cloudtrail library: Stratosphere integration for AWS CloudTrail.
stratosphere-cloudwatch library: Stratosphere integration for AWS CloudWatch.
stratosphere-codeartifact library: Stratosphere integration for AWS CodeArtifact.
stratosphere-codebuild library: Stratosphere integration for AWS CodeBuild.
stratosphere-codecommit library: Stratosphere integration for AWS CodeCommit.
stratosphere-codeconnections library: Stratosphere integration for AWS CodeConnections.
stratosphere-codedeploy library: Stratosphere integration for AWS CodeDeploy.
stratosphere-codeguruprofiler library: Stratosphere integration for AWS CodeGuruProfiler.
stratosphere-codegurureviewer library: Stratosphere integration for AWS CodeGuruReviewer.
stratosphere-codepipeline library: Stratosphere integration for AWS CodePipeline.
stratosphere-codestar library: Stratosphere integration for AWS CodeStar.
stratosphere-codestarconnections library: Stratosphere integration for AWS CodeStarConnections.
stratosphere-codestarnotifications library: Stratosphere integration for AWS CodeStarNotifications.
stratosphere-cognito library: Stratosphere integration for AWS Cognito.
stratosphere-comprehend library: Stratosphere integration for AWS Comprehend.
stratosphere-config library: Stratosphere integration for AWS Config.
stratosphere-connect library: Stratosphere integration for AWS Connect.
stratosphere-connectcampaigns library: Stratosphere integration for AWS ConnectCampaigns.
stratosphere-connectcampaignsv2 library: Stratosphere integration for AWS ConnectCampaignsV2.
stratosphere-controltower library: Stratosphere integration for AWS ControlTower.
stratosphere-cur library: Stratosphere integration for AWS CUR.
stratosphere-customerprofiles library: Stratosphere integration for AWS CustomerProfiles.
stratosphere-databrew library: Stratosphere integration for AWS DataBrew.
stratosphere-datapipeline library: Stratosphere integration for AWS DataPipeline.
stratosphere-datasync library: Stratosphere integration for AWS DataSync.
stratosphere-datazone library: Stratosphere integration for AWS DataZone.
stratosphere-dax library: Stratosphere integration for AWS DAX.
stratosphere-deadline library: Stratosphere integration for AWS Deadline.
stratosphere-detective library: Stratosphere integration for AWS Detective.
stratosphere-devopsguru library: Stratosphere integration for AWS DevOpsGuru.
stratosphere-directoryservice library: Stratosphere integration for AWS DirectoryService.
stratosphere-dlm library: Stratosphere integration for AWS DLM.
stratosphere-dms library: Stratosphere integration for AWS DMS.
stratosphere-docdb library: Stratosphere integration for AWS DocDB.
stratosphere-docdbelastic library: Stratosphere integration for AWS DocDBElastic.
stratosphere-dsql library: Stratosphere integration for AWS DSQL.
stratosphere-dynamodb library: Stratosphere integration for AWS DynamoDB.
stratosphere-ec2 library: Stratosphere integration for AWS EC2.
stratosphere-ecr library: Stratosphere integration for AWS ECR.
stratosphere-ecs library: Stratosphere integration for AWS ECS.
stratosphere-efs library: Stratosphere integration for AWS EFS.
stratosphere-eks library: Stratosphere integration for AWS EKS.
stratosphere-elasticache library: Stratosphere integration for AWS ElastiCache.
stratosphere-elasticbeanstalk library: Stratosphere integration for AWS ElasticBeanstalk.
stratosphere-elasticloadbalancing library: Stratosphere integration for AWS ElasticLoadBalancing.
stratosphere-elasticloadbalancingv2 library: Stratosphere integration for AWS ElasticLoadBalancingV2.
stratosphere-elasticsearch library: Stratosphere integration for AWS Elasticsearch.
stratosphere-emr library: Stratosphere integration for AWS EMR.
stratosphere-emrcontainers library: Stratosphere integration for AWS EMRContainers.
stratosphere-emrserverless library: Stratosphere integration for AWS EMRServerless.
stratosphere-entityresolution library: Stratosphere integration for AWS EntityResolution.
stratosphere-events library: Stratosphere integration for AWS Events.
stratosphere-eventschemas library: Stratosphere integration for AWS EventSchemas.
stratosphere-evidently library: Stratosphere integration for AWS Evidently.
stratosphere-evs library: Stratosphere integration for AWS EVS.
stratosphere-finspace library: Stratosphere integration for AWS FinSpace.
stratosphere-fis library: Stratosphere integration for AWS FIS.
stratosphere-fms library: Stratosphere integration for AWS FMS.
stratosphere-forecast library: Stratosphere integration for AWS Forecast.
stratosphere-frauddetector library: Stratosphere integration for AWS FraudDetector.
stratosphere-fsx library: Stratosphere integration for AWS FSx.
stratosphere-gamelift library: Stratosphere integration for AWS GameLift.
stratosphere-globalaccelerator library: Stratosphere integration for AWS GlobalAccelerator.
stratosphere-glue library: Stratosphere integration for AWS Glue.
stratosphere-grafana library: Stratosphere integration for AWS Grafana.
stratosphere-greengrass library: Stratosphere integration for AWS Greengrass.
stratosphere-greengrassv2 library: Stratosphere integration for AWS GreengrassV2.
stratosphere-groundstation library: Stratosphere integration for AWS GroundStation.
stratosphere-guardduty library: Stratosphere integration for AWS GuardDuty.
stratosphere-healthimaging library: Stratosphere integration for AWS HealthImaging.
stratosphere-healthlake library: Stratosphere integration for AWS HealthLake.
stratosphere-iam library: Stratosphere integration for AWS IAM.
stratosphere-identitystore library: Stratosphere integration for AWS IdentityStore.
stratosphere-imagebuilder library: Stratosphere integration for AWS ImageBuilder.
stratosphere-inspector library: Stratosphere integration for AWS Inspector.
stratosphere-inspectorv2 library: Stratosphere integration for AWS InspectorV2.
stratosphere-internetmonitor library: Stratosphere integration for AWS InternetMonitor.
stratosphere-invoicing library: Stratosphere integration for AWS Invoicing.
stratosphere-iot library: Stratosphere integration for AWS IoT.
stratosphere-iotanalytics library: Stratosphere integration for AWS IoTAnalytics.
stratosphere-iotcoredeviceadvisor library: Stratosphere integration for AWS IoTCoreDeviceAdvisor.
stratosphere-iotevents library: Stratosphere integration for AWS IoTEvents.
stratosphere-iotfleethub library: Stratosphere integration for AWS IoTFleetHub.
stratosphere-iotfleetwise library: Stratosphere integration for AWS IoTFleetWise.
stratosphere-iotsitewise library: Stratosphere integration for AWS IoTSiteWise.
stratosphere-iotthingsgraph library: Stratosphere integration for AWS IoTThingsGraph.
stratosphere-iottwinmaker library: Stratosphere integration for AWS IoTTwinMaker.
stratosphere-iotwireless library: Stratosphere integration for AWS IoTWireless.
stratosphere-ivs library: Stratosphere integration for AWS IVS.
stratosphere-ivschat library: Stratosphere integration for AWS IVSChat.
stratosphere-kafkaconnect library: Stratosphere integration for AWS KafkaConnect.
stratosphere-kendra library: Stratosphere integration for AWS Kendra.
stratosphere-kendraranking library: Stratosphere integration for AWS KendraRanking.
stratosphere-kinesis library: Stratosphere integration for AWS Kinesis.
stratosphere-kinesisanalytics library: Stratosphere integration for AWS KinesisAnalytics.
stratosphere-kinesisanalyticsv2 library: Stratosphere integration for AWS KinesisAnalyticsV2.
stratosphere-kinesisfirehose library: Stratosphere integration for AWS KinesisFirehose.
stratosphere-kinesisvideo library: Stratosphere integration for AWS KinesisVideo.
stratosphere-kms library: Stratosphere integration for AWS KMS.
stratosphere-lakeformation library: Stratosphere integration for AWS LakeFormation.
stratosphere-lambda library: Stratosphere integration for AWS Lambda.
stratosphere-launchwizard library: Stratosphere integration for AWS LaunchWizard.
stratosphere-lex library: Stratosphere integration for AWS Lex.
stratosphere-licensemanager library: Stratosphere integration for AWS LicenseManager.
stratosphere-lightsail library: Stratosphere integration for AWS Lightsail.
stratosphere-location library: Stratosphere integration for AWS Location.
stratosphere-logs library: Stratosphere integration for AWS Logs.
stratosphere-lookoutequipment library: Stratosphere integration for AWS LookoutEquipment.
stratosphere-lookoutmetrics library: Stratosphere integration for AWS LookoutMetrics.
stratosphere-lookoutvision library: Stratosphere integration for AWS LookoutVision.
stratosphere-m2 library: Stratosphere integration for AWS M2.
stratosphere-macie library: Stratosphere integration for AWS Macie.
stratosphere-managedblockchain library: Stratosphere integration for AWS ManagedBlockchain.
stratosphere-mediaconnect library: Stratosphere integration for AWS MediaConnect.
stratosphere-mediaconvert library: Stratosphere integration for AWS MediaConvert.
stratosphere-medialive library: Stratosphere integration for AWS MediaLive.
stratosphere-mediapackage library: Stratosphere integration for AWS MediaPackage.
stratosphere-mediapackagev2 library: Stratosphere integration for AWS MediaPackageV2.
stratosphere-mediastore library: Stratosphere integration for AWS MediaStore.
stratosphere-mediatailor library: Stratosphere integration for AWS MediaTailor.
stratosphere-memorydb library: Stratosphere integration for AWS MemoryDB.
stratosphere-mpa library: Stratosphere integration for AWS MPA.
stratosphere-msk library: Stratosphere integration for AWS MSK.
stratosphere-mwaa library: Stratosphere integration for AWS MWAA.
stratosphere-neptune library: Stratosphere integration for AWS Neptune.
stratosphere-neptunegraph library: Stratosphere integration for AWS NeptuneGraph.
stratosphere-networkfirewall library: Stratosphere integration for AWS NetworkFirewall.
stratosphere-networkmanager library: Stratosphere integration for AWS NetworkManager.
stratosphere-notifications library: Stratosphere integration for AWS Notifications.
stratosphere-notificationscontacts library: Stratosphere integration for AWS NotificationsContacts.
stratosphere-oam library: Stratosphere integration for AWS Oam.
stratosphere-observabilityadmin library: Stratosphere integration for AWS ObservabilityAdmin.
stratosphere-odb library: Stratosphere integration for AWS ODB.
stratosphere-omics library: Stratosphere integration for AWS Omics.
stratosphere-opensearchserverless library: Stratosphere integration for AWS OpenSearchServerless.
stratosphere-opensearchservice library: Stratosphere integration for AWS OpenSearchService.
stratosphere-opsworks library: Stratosphere integration for AWS OpsWorks.
stratosphere-organizations library: Stratosphere integration for AWS Organizations.
stratosphere-osis library: Stratosphere integration for AWS OSIS.
stratosphere-panorama library: Stratosphere integration for AWS Panorama.
stratosphere-paymentcryptography library: Stratosphere integration for AWS PaymentCryptography.
stratosphere-pcaconnectorad library: Stratosphere integration for AWS PCAConnectorAD.
stratosphere-pcaconnectorscep library: Stratosphere integration for AWS PCAConnectorSCEP.
stratosphere-pcs library: Stratosphere integration for AWS PCS.
stratosphere-personalize library: Stratosphere integration for AWS Personalize.
stratosphere-pinpoint library: Stratosphere integration for AWS Pinpoint.
stratosphere-pinpointemail library: Stratosphere integration for AWS PinpointEmail.
stratosphere-pipes library: Stratosphere integration for AWS Pipes.
stratosphere-proton library: Stratosphere integration for AWS Proton.
stratosphere-qbusiness library: Stratosphere integration for AWS QBusiness.
stratosphere-qldb library: Stratosphere integration for AWS QLDB.
stratosphere-quicksight library: Stratosphere integration for AWS QuickSight.
stratosphere-ram library: Stratosphere integration for AWS RAM.
stratosphere-rbin library: Stratosphere integration for AWS Rbin.
stratosphere-rds library: Stratosphere integration for AWS RDS.
stratosphere-redshift library: Stratosphere integration for AWS Redshift.
stratosphere-redshiftserverless library: Stratosphere integration for AWS RedshiftServerless.
stratosphere-refactorspaces library: Stratosphere integration for AWS RefactorSpaces.
stratosphere-rekognition library: Stratosphere integration for AWS Rekognition.
stratosphere-resiliencehub library: Stratosphere integration for AWS ResilienceHub.
stratosphere-resourceexplorer2 library: Stratosphere integration for AWS ResourceExplorer2.
stratosphere-resourcegroups library: Stratosphere integration for AWS ResourceGroups.
stratosphere-robomaker library: Stratosphere integration for AWS RoboMaker.
stratosphere-rolesanywhere library: Stratosphere integration for AWS RolesAnywhere.
stratosphere-route53 library: Stratosphere integration for AWS Route53.
stratosphere-route53profiles library: Stratosphere integration for AWS Route53Profiles.
stratosphere-route53recoverycontrol library: Stratosphere integration for AWS Route53RecoveryControl.
stratosphere-route53recoveryreadiness library: Stratosphere integration for AWS Route53RecoveryReadiness.
stratosphere-route53resolver library: Stratosphere integration for AWS Route53Resolver.
stratosphere-rtbfabric library: Stratosphere integration for AWS RTBFabric.
stratosphere-rum library: Stratosphere integration for AWS RUM.
stratosphere-s3 library: Stratosphere integration for AWS S3.
stratosphere-s3express library: Stratosphere integration for AWS S3Express.
stratosphere-s3objectlambda library: Stratosphere integration for AWS S3ObjectLambda.
stratosphere-s3outposts library: Stratosphere integration for AWS S3Outposts.
stratosphere-s3tables library: Stratosphere integration for AWS S3Tables.
stratosphere-sagemaker library: Stratosphere integration for AWS SageMaker.
stratosphere-scheduler library: Stratosphere integration for AWS Scheduler.
stratosphere-sdb library: Stratosphere integration for AWS SDB.
stratosphere-secretsmanager library: Stratosphere integration for AWS SecretsManager.
stratosphere-securityhub library: Stratosphere integration for AWS SecurityHub.
stratosphere-securitylake library: Stratosphere integration for AWS SecurityLake.
stratosphere-servicecatalog library: Stratosphere integration for AWS ServiceCatalog.
stratosphere-servicecatalogappregistry library: Stratosphere integration for AWS ServiceCatalogAppRegistry.
stratosphere-servicediscovery library: Stratosphere integration for AWS ServiceDiscovery.
stratosphere-ses library: Stratosphere integration for AWS SES.
stratosphere-shield library: Stratosphere integration for AWS Shield.
stratosphere-signer library: Stratosphere integration for AWS Signer.
stratosphere-simspaceweaver library: Stratosphere integration for AWS SimSpaceWeaver.
stratosphere-smsvoice library: Stratosphere integration for AWS SMSVOICE.
stratosphere-sns library: Stratosphere integration for AWS SNS.
stratosphere-sqs library: Stratosphere integration for AWS SQS.
stratosphere-ssm library: Stratosphere integration for AWS SSM.
stratosphere-ssmcontacts library: Stratosphere integration for AWS SSMContacts.
stratosphere-ssmguiconnect library: Stratosphere integration for AWS SSMGuiConnect.
stratosphere-ssmincidents library: Stratosphere integration for AWS SSMIncidents.
stratosphere-ssmquicksetup library: Stratosphere integration for AWS SSMQuickSetup.
stratosphere-sso library: Stratosphere integration for AWS SSO.
stratosphere-stepfunctions library: Stratosphere integration for AWS StepFunctions.
stratosphere-supportapp library: Stratosphere integration for AWS SupportApp.
stratosphere-synthetics library: Stratosphere integration for AWS Synthetics.
stratosphere-systemsmanagersap library: Stratosphere integration for AWS SystemsManagerSAP.
stratosphere-timestream library: Stratosphere integration for AWS Timestream.
stratosphere-transfer library: Stratosphere integration for AWS Transfer.
stratosphere-verifiedpermissions library: Stratosphere integration for AWS VerifiedPermissions.
stratosphere-voiceid library: Stratosphere integration for AWS VoiceID.
stratosphere-vpclattice library: Stratosphere integration for AWS VpcLattice.
stratosphere-waf library: Stratosphere integration for AWS WAF.
stratosphere-wafregional library: Stratosphere integration for AWS WAFRegional.
stratosphere-wafv2 library: Stratosphere integration for AWS WAFv2.
stratosphere-wisdom library: Stratosphere integration for AWS Wisdom.
stratosphere-workspaces library: Stratosphere integration for AWS WorkSpaces.
stratosphere-workspacesinstances library: Stratosphere integration for AWS WorkspacesInstances.
stratosphere-workspacesthinclient library: Stratosphere integration for AWS WorkSpacesThinClient.
stratosphere-workspacesweb library: Stratosphere integration for AWS WorkSpacesWeb.
stratosphere-xray library: Stratosphere integration for AWS XRay.
wai-handler-hal library and test: Wrap WAI applications to run on AWS Lambda
wolf library and programs: Amazon Simple Workflow Service Wrapper.

Cloud Haskell

distributed-process-lifted library and test: monad-control style typeclass and transformer instances for Process monad.
distributed-process-systest library: Cloud Haskell Test Support
distributed-process-task library and test: Task Framework for The Cloud Haskell Application Platform
distributed-process-tests library and tests: Tests and test support tools for distributed-process.
distributed-process-zookeeper library, program and test: A Zookeeper back-end for Cloud Haskell.

Cloud9

stratosphere-cloud9 library: Stratosphere integration for AWS Cloud9.

Cloudflare

hs-opentelemetry-instrumentation-cloudflare library and test: OpenTelemetry instrumentation for Cloudflare services

CloudFormation

stratosphere-cloudformation library: Stratosphere integration for AWS CloudFormation.

CloudFront

stratosphere-cloudfront library: Stratosphere integration for AWS CloudFront.

CloudTrail

stratosphere-cloudtrail library: Stratosphere integration for AWS CloudTrail.

CloudWatch

stratosphere-cloudwatch library: Stratosphere integration for AWS CloudWatch.

CLR

clr-bindings library and test: Glue between clr-host and clr-typed
clr-host library and test: Hosting the Common Language Runtime
clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
clr-marshal library: Marshaling for the clr
clr-typed library and test: A strongly typed Haskell interface to the CLR type system
clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug

Clustering

gsc-weighting library: Generic implementation of Gerstein/Sonnhammer/Chothia weighting.
hieraclus library: Automated clustering of arbitrary elements in Haskell.
hierarchical-clustering library and test: Fast algorithms for single, average/UPGMA and complete linkage clustering.
hierarchical-clustering-diagrams library and test: Draw diagrams of dendrograms made by hierarchical-clustering.
hps-kmeans library: A nice implementation of the k-Means algorithm.
hsgsom library: An implementation of the GSOM clustering algorithm.
kmeans library: K-means clustering algorithm

CmdLineArgs

uniform-cmdLineArgs library: a convenient handling of command line arguments

Code Analysis

phino library, program, test and benchmark: Command-Line Manipulator of 𝜑-Calculus Expressions

Code Competitions

competition library: Helpers and runners for code competitions

Code Generation

bond library, program and test: Bond schema compiler and code generator
convex-schema-parser library, program and test: A type-safe client generator for Convex for both Rust and Python.
dataflow library, program and test: Generate Graphviz documents from a Haskell representation.
elminator library and test: Generate ELM types/encoders/decoders from Haskell types.
flexible-defaults library: Generate default function implementations for complex type classes.
harpy library: Runtime code generation for x86 machine code
haskell-generate library and test: Typesafe generation of haskell source code
hasktorch-codegen library, program and test: Code generation tools for Hasktorch
hburg program: Haskell Bottom Up Rewrite Generator
llvm library: Bindings to the LLVM compiler toolkit.
llvm-base library: FFI bindings to the LLVM compiler toolkit.
llvm-base-util library: Utilities for bindings to the LLVM compiler toolkit.
llvm-dsl library and test: Support for writing an EDSL with LLVM-JIT as target
llvm-extension library and program: Processor specific intrinsics for the llvm interface
llvm-extra library, program and test: Utility functions for the llvm interface
llvm-ffi library and programs: FFI bindings to the LLVM compiler toolkit.
llvm-ffi-tools programs: Tools for maintaining the llvm-ffi package
llvm-general library and test: General purpose LLVM bindings
llvm-general-pure library and test: Pure Haskell LLVM functionality (no FFI).
llvm-general-quote library and test: QuasiQuoting llvm code for llvm-general
llvm-hs library and test: General purpose LLVM bindings
llvm-hs-pure library and test: Pure Haskell LLVM functionality (no FFI).
llvm-ht library: Bindings to the LLVM compiler toolkit with some custom extensions.
llvm-party library and test: General purpose LLVM bindings
llvm-pkg-config program: Generate Pkg-Config configuration file for LLVM
llvm-tf library, programs and test: Bindings to the LLVM compiler toolkit using type families.
morloc library, program and test: A multi-lingual, typed, workflow language
passage library: Parallel code generation for hierarchical Bayesian modeling.
preprocessor-tools library: A framework for extending Haskell's syntax via quick-and-dirty preprocessors
sugarhaskell programs: Library-based syntactic extensibility for Haskell
x86-64bit library and test: Runtime code generation for x86 64 bit machine code

Code-Generator

openapi3-code-generator library, program and test: OpenAPI3 Haskell Client Code Generator

CodeArtifact

stratosphere-codeartifact library: Stratosphere integration for AWS CodeArtifact.

CodeBuild

stratosphere-codebuild library: Stratosphere integration for AWS CodeBuild.

Codec

AC-PPM library: Trivial package for writing PPM images.
activitystreams-aeson library: An interface to the ActivityStreams specification
archive-libarchive library: Common interface using libarchive
archive-sig library: Backpack signature for archive libraries
archive-tar library: Common interface using the tar package
archive-tar-bytestring library: Common interface using the tar-bytestring package
automitive-cse library and test: Automotive CSE emulation
automotive-cse library and test: Automotive CSE emulation
avif library and test: High-level bindings to libavif
base-encoding library: RFC4648 Binary-to-text encodings (e.g. base64)
base32-bytestring library, test and benchmark: Fast base32 and base32hex codec for ByteStrings
base32-z-bytestring library, test and benchmark: Fast z-base32 and z-base32hex codec for ByteStrings
base64-string library: Base64 implementation for String's.
base91 library, program and test: A Generic Base91 Encoder & Decoder
benc library, test and benchmark: Bencode encoding and decoding library
bgzf library: Blocked GZip
bidirectional library and test: Simple bidirectional serialization and deserialization
binary-serialise-cbor library: Yet Another Binary Serialisation Library (compatibility shim)
bindings-codec2 library and program: Very low-level FFI bindings for Codec2
bitmaps library: Bitmap library
bmp library: Read and write uncompressed BMP image files.
borsh library and test: Implementation of BORSH serialisation
bottom library, program, test and benchmark: Encoding and decoding for the Bottom spec.
brotli library and test: Brotli (RFC7932) compression and decompression
brotli-conduit library and test: Conduit interface for Brotli (RFC7932) compression.
brotli-streams library and test: IO-Streams interface for Brotli (RFC7932) compression
bytable library: data from/to ByteString
bz3 library and test: High-level bindings to bz3
bzip2-clib library: bzip2 C sources
bzlib library and test: Compression and decompression in the bzip2 format
bzlib-conduit library, test and benchmark: Streaming compression/decompression via conduits.
bzlib-conduit-jappie library, test and benchmark: Streaming compression/decompression via conduits.
candid library, program and tests: Candid integration
cbor-tool program: A tool for manipulating CBOR.
cborg library and test: Concise Binary Object Representation (CBOR)
cborg-json library, test and benchmark: A library for encoding JSON as CBOR
chunky library, program and test: Human-readable storage of text/binary objects.
circe library, program and test: CRC
cityhash library and test: Bindings to CityHash
codec-beam library and test: Erlang VM byte code assembler
Codec-Compression-LZF library: LZF compression bindings.
codec-mbox library: A library to read and write mailboxes in mbox format
compression library: Common compression algorithms.
crockford library and test: An implementation of Douglas Crockford's base32 encoding.
Crypto library and tests: Common Cryptographic Algorithms in Pure Haskell
cryptostore library and test: Serialization of cryptographic data types
cuddle library, program and test: CDDL Generator and test utilities
dataenc library and program: Data encoding library
deunicode program: Get rid of unicode (utf-8) symbols in Haskell sources
double-x-encoding library and test: Encoding scheme to encode any Unicode string with only [0-9a-zA-Z_]
DSA library and test: Implementation of DSA, based on the description of FIPS 186-4
dvorak library and test: Dvorak encoding for Haskell.
ebml library, program and test: A pure EBML parser
edf library: EDF parsing library
embroidery library and program: support for embroidery formats in haskell
Encode library and programs: Encoding character data
encoding library, program and test: A library for various character encodings
epub-metadata library, program and test: Library for parsing epub document metadata
exomizer library: Compression and decompression in the exomizer format
fast-bech32 library, test and benchmark: Fast implementation of the Bech32 encoding format.
fec library, program and test: Forward error correction of ByteStrings
ffmpeg-light library and programs: Minimal bindings to the FFmpeg library.
file-collection library: Provide a uniform interface over file archives and directories
flac library and test: Complete high-level binding to libFLAC
flac-picture library and test: Support for writing pictures into FLAC metadata blocks with JuicyPixels
fountain library: A fountain codec.
friday-juicypixels library and test: Converts between the Friday and JuicyPixels image types
gnuidn library and test: Bindings for GNU IDN
goat library and test: Time Series Compression
GOST34112012-Hash library and test: Bindings to the GOST R 34.11-2012 hashing implementation
gray-code library and test: Gray code encoder/decoder.
hascar library, program and test: Decompress SAPCAR archives
hblosc library and test: Blosc (numerical compression library) bindings for Haskell
hcobs library, tests and benchmark: An implementation of the Consistent Overhead Byte Stuffing algorithm
HCodecs library and test: A library to read, write and manipulate MIDI, WAVE, and SoundFont2 files.
hecc library: Elliptic Curve Cryptography for Haskell
hogg library and programs: Library and tools to manipulate the Ogg container format
hOpenPGP library, test and benchmark: native Haskell implementation of OpenPGP (RFC9580)
hopenpgp-tools programs: hOpenPGP-based command-line tools
hopfli library and test: Bidings to Google's Zopfli compression library
hs-zstd library, test and benchmark: Haskell bindings to the Zstandard compression algorithm
hstar program: Haskell version of tar CLI utility
HsYAML-aeson library and program: JSON to YAML Adapter
htar program: Command-line tar archive utility.
hw-tar library, program and test: Library for creating and extracting tar archives
iff library: Constructing and dissecting IFF files
ipldm library: The InterPlanetary Linked Data Model and codec formats.
isobmff library, test and benchmark: A parser and generator for the ISO-14496-12/14 base media file format
isobmff-builder library, test and benchmark: A (bytestring-) builder for the ISO-14496-12 base media file format
iteratee-compress library: Enumeratees for compressing and decompressing streams
jordan library and test: JSON with Structure
jpeg-turbo library and test: FFI bindings to libjpeg-turbo
json-directory library and program: Load JSON from files in a directory structure
json-encoder library: A direct-to-bytes single-pass JSON encoder with a declarative DSL
jsop library and test: Cherry picking in JSON objects
JuicyPixels library: Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance)
JuicyPixels-blp library and program: BLP format decoder/encoder over JuicyPixels library
JuicyPixels-jpeg-turbo library and test: JuicyPixels wrappers for libjpeg-turbo
keiki-codec-json library, test and benchmark: Optional JSON codec for keiki's RegFile.
keiki-codec-json-test library and test: Property-test toolkit for keiki-codec-json downstream consumers.
lame library and test: A high-level binding to the LAME encoder
leb128 library, test and benchmark: LEB128 encoding logic for and in Haskell
leb128-cereal library and tests: LEB128 and SLEB128 encoding
libarchive library, program, test and benchmarks: Haskell interface to libarchive
libarchive-clib library: Haskell interface to libarchive (C sources)
libarchive-conduit library: Read many archive formats with libarchive and conduit
libvorbis library: Haskell binding for libvorbis, for decoding Ogg Vorbis audio files
LibZip library and test: Bindings to libzip, a library for manipulating zip archives.
list-t-text library and test: A streaming text codec
logic-TPTP library, programs and test: Import, export etc. for TPTP, a syntax for first-order logic
lz4 library, test and benchmark: LZ4 compression for ByteStrings
lz4-conduit library, program and test: LZ4 compression for conduits
lz4-hs library, test and benchmarks: lz4 bindings for Haskell
lzip library: Lzip compression / Lzlib bindings
lzlib library, test and benchmarks: lzlib bindings
lzma library and test: LZMA/XZ compression and decompression
lzma-clib : liblzma C library and headers for use by LZMA bindings
lzma-conduit library and test: Conduit interface for lzma/xz compression.
lzma-enumerator library and test: Enumerator interface for lzma/xz compression.
lzma-static test: LZMA/XZ compression and decompression (static)
lzma-streams library and test: IO-Streams interface for lzma/xz compression
lzo library, test and benchmark: minilzo bundled for Haskell
mfmts library: Implements multiformats specification
mime library: Working with MIME types.
mime-string library: MIME implementation for String's.
mp3decoder program: MP3 decoder for teaching.
mpg123-bindings library: Mpg132 bindings
mucipher library: A library to produce simple ciphers for use with lambdabot.
multihash-serialise library and test: CBOR encoding of multihashes
multipath library: Parser and builder for unix-path-like objects.
nano-hmac library: Bindings to OpenSSL HMAC.
nano-md5 library: Efficient, ByteString bindings to OpenSSL.
netpbm library, test and benchmark: Loading PBM, PGM, PPM image files
omnicodec programs: Data encoding and decoding command line utilities
openpgp-asciiarmor library, test and benchmark: OpenPGP (RFC9580) ASCII Armor codec
opus library and test: Bindings to libopus for the Opus audio codec
pipes-bgzf library: Blocked GZip
pipes-brotli library and test: Brotli (RFC7932) compressors and decompressors for the Pipes package
pipes-bzip library, test and benchmark: Streaming compression/decompression via pipes.
pipes-illumina library: Illumina NGS data processing
pipes-lzma library, program and test: LZMA compressors and decompressors for the Pipes package
png-chunk-yaftee library and test: PNG's chunk codec on Yaftee
ppm library: a tiny PPM image generator
proto3-suite library, programs and test: A higher-level API to the proto3-wire library
proto3-wire library, test and benchmark: A low-level implementation of the Protocol Buffers (version 3) wire format
pure-zlib library, program, test and benchmark: A Haskell-only implementation of zlib / DEFLATE
qrcode library: QR Code library in pure Haskell
qrcode-core library: QR code library in pure Haskell
quicklz library and test: QuickLZ compression for ByteStrings
raaz library, program, tests and benchmark: Fast and type safe cryptography.
rlglue library and programs: A Haskell codec for RL-Glue.
rot13 library and test: Fast ROT13 cipher for Haskell.
RSA library and test: Implementation of RSA, using the padding schemes of PKCS#1 v2.1.
sandi library, test and benchmark: Data encoding library
serialise library, test and benchmarks: A binary serialisation library for Haskell values.
sexpr library and program: S-expression printer and parser
SHA library, programs and test: Implementations of the SHA suite of message digest functions
shamochu library: “Shuffle and merge overlapping chunks” lossless compression
shannon-fano library, program and test: Shannon-fano compression algorithm in Haskell
simple-tar library: Simple, pure, file-system-free reading of tar files
snappy library and test: Fast Haskell bindings to Google’s Snappy compression library.
snappy-c library, program, test and benchmark: Bindings to Google's Snappy: A fast compression library
snappy-conduit library: Conduit bindings for Snappy (see snappy package)
snappy-framing library: Snappy Framing Format in Haskell
snappy-hs library, programs, test and benchmark: Snappy compression library.
snappy-iteratee library: An enumeratee that uses Google's snappy compression library.
snappy-lazy library: Lazy bytestring compression and decompression
sndfile-enumerators library: Audio file reading/writing
snow-white library: encode any binary instance to white space
spire-protobuf library and tests: Minimal Protocol Buffers for Haskell, no codegen
stb-image library: A wrapper around Sean Barrett's JPEG/PNG decoder
streaming-brotli library and test: Streaming interface for Brotli (RFC7932) compression
streaming-lzma library and test: Streaming interface for LZMA/XZ compression
streaming-png library and program: Perfectly streaming PNG image decoding
streamly-archive library and test: Stream data from archives using the streamly library.
streamly-lz4 library, test and benchmark: Streamly combinators for LZ4 compression
streamly-zip library and test: Stream data from zip archives using the streamly library.
strict-containers-serialise library: Strict containers - Serialise instances
tahoe-capabilities library and test: Abstractions related to Tahoe-LAFS "capabilities".
tar library, test and benchmark: Reading, writing and manipulating ".tar" archive files.
tar-bytestring test and benchmark: Reading, writing and manipulating ".tar" archive files.
text-locale-encoding library: Encode and decode Text to/from ByteString using TextEncoding
threefish library: The Threefish block cipher and the Skein hash function for Haskell.
Twofish library and test: An implementation of the Twofish Symmetric-key cipher.
uconv library: String encoding conversion with ICU
ulid library, program, test and benchmark: Implementation of ULID - Universally Unique Lexicographically Sortable Identifier
utf8-conversions library and test: A string conversion library that assumes utf8
utf8-light library and test: Unicode
utf8-string library and test: Support for reading and writing UTF8 Strings
utf8-validator library, test and benchmark: Constant-space UTF8 validator for ByteStrings
variety library and test: integer arithmetic codes
vivid-osc library and test: Open Sound Control encode/decode
wave library and test: Work with WAVE and RF64 files
wavefront library: Wavefront OBJ loader
webp library and test: JuicyPixels support for WebP format
winery library, program, tests and benchmark: A compact, well-typed seralisation format for Haskell values
wireform-core library, test and benchmarks: Shared FFI primitives for wireform format packages
wireform-derive library and test: Annotation-driven Template Haskell deriver core for wireform
wireform-proto library, programs, tests and benchmarks: Protocol Buffers (proto2/proto3) with IDL parser, code generation, JSON mapping
xls library, program and test: Parse Microsoft Excel xls files (BIFF/Excel 97-2004)
xlsior library and test: Streaming Excel file generation and parsing
xlsx library, test and benchmark: Simple and incomplete Excel file parser/writer
xlsx-tabular library and test: Xlsx table cell value extraction utility
xlsx-templater library and program: Simple and incomplete Excel file templater
xor library, test and benchmark: Efficient XOR masking
xz library and test: LZMA/XZ compression and decompression
xz-clib library: LZMA/XZ clibs
yajl library: Bindings for YAJL, an event-based JSON implementation
zim-parser library and test: Read and parse ZIM files
zip library, program and test: Operations on zip archives
zip-archive library, program and test: Library for creating and modifying zip archives.
zip-conduit library and test: Working with zip archives via conduits
zip-stream library, programs and test: ZIP archive streaming using conduits
zip2tar program: Convert ZIP to TAR archives
zlib library and test: Compression and decompression in the gzip and zlib formats
zlib-bindings library and test: Low-level bindings to the zlib package.
zlib-clib library: zlib C library bits
zlib-core library and test: Thin wrapper for zlib
zlib-enum program: Enumerator interface for zlib compression
zlib-lens library: Lenses for zlib
zlib-yaftee library and test: Zlib wrapper built on Yaftee
zstd library, test and benchmark: Haskell bindings to the Zstandard compression algorithm
ztar library and tests: Creating and extracting arbitrary archives

CodeCommit

stratosphere-codecommit library: Stratosphere integration for AWS CodeCommit.

CodeConnections

stratosphere-codeconnections library: Stratosphere integration for AWS CodeConnections.

Codecs

Codec-Image-DevIL library: An FFI interface to the DevIL library
double-x-encoding library and test: Encoding scheme to encode any Unicode string with only [0-9a-zA-Z_]
hasql-postgresql-types library: Integration of "hasql" with "postgresql-types"
HSoundFile library: Audio file reading/writing
html-entities library: A codec library for HTML-escaped text and HTML-entities
json-bytes-builder library, test and benchmark: Direct-to-bytes JSON Builder
pngload library: Pure Haskell loader for PNG images
pngload-fixed library: Pure Haskell loader for PNG images
postgresql-binary library, test and benchmarks: Encoders and decoders for the PostgreSQL's binary format
postgresql-simple-postgresql-types library and test: Integration of "postgresql-simple" with "postgresql-types"
postgresql-types library and tests: Precise PostgreSQL types representation and driver-agnostic codecs
postgresql-types-algebra library: Type classes for PostgreSQL type mappings
testcontainers-postgresql library: Testcontainers integration for PostgreSQL
url-decoders library, test and benchmarks: Decoders for URL-encoding (aka Percent-encoding)

CodeDeploy

stratosphere-codedeploy library: Stratosphere integration for AWS CodeDeploy.

Codegen

elmental library, program and test: Generate Elm datatype definitions, encoders and decoders from Haskell datatypes.
fields-and-cases library and test: Codegen Haskell types to other languages
hasktorch library, tests and benchmarks: Haskell bindings to libtorch, supporting both typed and untyped tensors.
libtorch-ffi library and test: Haskell bindings for PyTorch
libtorch-ffi-helper library: Helpers for integrating libtorch-ffi with Hasktorch.
module-munging library and test: Smash together text to make modules.
shwifty library: Generate swift types from haskell types.
tdlib-gen library, program and test: Codegen for TDLib

CodeGuruProfiler

stratosphere-codeguruprofiler library: Stratosphere integration for AWS CodeGuruProfiler.

CodeGuruReviewer

stratosphere-codegurureviewer library: Stratosphere integration for AWS CodeGuruReviewer.

CodePipeline

stratosphere-codepipeline library: Stratosphere integration for AWS CodePipeline.

CodeQuality

source-constraints library and test: Source constraints GHC plugin

CodeStar

stratosphere-codestar library: Stratosphere integration for AWS CodeStar.

CodeStarConnections

stratosphere-codestarconnections library: Stratosphere integration for AWS CodeStarConnections.

CodeStarNotifications

stratosphere-codestarnotifications library: Stratosphere integration for AWS CodeStarNotifications.

Coerce

safe-coerce library: A friendly shorthand for an old friend

Cognito

stratosphere-cognito library: Stratosphere integration for AWS Cognito.

Combinatorics

fast-arithmetic library, test and benchmark: Fast functions on integers.
jackpolynomials library, test and benchmark: Jack, zonal, Schur, and other symmetric polynomials
matroid library and test: matroid (combinatorial pre-geometries) library

Combinators

arrow-utils library and test: functions for working with arrows
data-aviary library: Combinator birds.
data-emoticons library: Combinator emoticons: data-aviary in the flavor of emoticons
DeepArrow library: Arrows for "deep application"
flow library and test: Write more understandable Haskell.
flow-er library and test: More directional operators
functional-arrow library: Combinators that allow for a more functional/monadic style of Arrow programming
JSON-Combinator library: A combinator library on top of a generalised JSON type
JSON-Combinator-Examples library: Example uses of the JSON-Combinator library.
MapWith library, tests and benchmarks: mapWith: like fmap, but with additional parameters (isFirst, isLast, etc).
op library and test: Common operators encouraging large-scale easy reading
overhang library: Hang loose with your lambdas!
pattern-arrows library: Arrows for Pretty Printing
pointless-fun library: Some common point-free combinators.
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
predicates library: A couple of convenience functions for forming predicates.
prelude-extras library: Higher order versions of Prelude classes
reader-soup library: Vinyl-based reader-like monad composition
reverse-apply library: Standard version of the reverse apply operator.
scc library, program and test: Streaming component combinators
sec library: Semantic Editor Combinators.
syb-extras library: Higher order versions of the Scrap Your Boilerplate classes

Command Line

cli-extras library: Miscellaneous utilities for building and working with command line interfaces
dmc library and test: cmd for common cases
gamgee library, program and test: Tool for generating TOTP MFA tokens.
Hish library and program
hnormalise library, programs, test and benchmark: Log message normalisation tool producing structured JSON messages
optima-for-hasql library: Command-line arguments parsing for Hasql
oset library, program and test: An insertion-order-preserving set
ReadArgs library, program and test: Simple command line argument parsing
readline-in-other-words library and program: Readline effect for in-other-words.
req-oauth2 library, program and test: Provides OAuth2 authentication for use with Req
sandwatch library, program and test: record historical command runtimes for later prediction
sexpr-parser library, program and test: Simple s-expression parser
shellmet library, program and test: Out of the shell solution for scripting in Haskell
tinyapp library and test: Library to build tiny apps in Haskell

Command Line Tool

catnplus program: Simple tool to display text files with line numbers and paging
herms program: A command-line manager for delicious kitchen recipes
hidden-char library and test: Provides cross-platform getHiddenChar function
update-repos library, program and test: Update all your git repositories with just one command.
weatherhs program: Weather and related data info command-line tool

Command Line Tools

brok library, program and test: Finds broken links in text files
cli-setup library: Helper setup scripts for packaging command-line tools.
cmt library, program and test: Write consistent git commit messages
confetti library, program and test: A simple config file swapping tool
frecently program: CLI frecency history
mem-info library, programs and test: Print the core memory usage of programs
multidir library, program and test: Simple tool for running commands in multiple directories
taskell library, program and test: A command-line kanban board/task manager

CommandLine

calenderweek program: Commandline tool to get week of the year
pandoc-sidenote library and program: Convert Pandoc Markdown-style footnotes into sidenotes
perceptual-hash library, program, test and benchmark: Find duplicate images
sak program: Compression command-line tool

Commerce

turni program: shifts scheduling tool

Commercial

snowflake-core library and test: twitter's snowflake
snowflake-server program: snowflake http server

Common-Parts

handle-like library: HandleLike class

Comonad

co-log library, programs and tests: Composable Contravariant Comonadic Logging Library
co-log-concurrent library: Asynchronous backend for co-log library
co-log-core library and test: Composable Contravariant Comonadic Logging Library
co-log-polysemy library and program: Composable Contravariant Comonadic Logging Library

Comonads

category-extras library: A meta-package documenting various packages inspired by category theory
comonad library: Comonads
comonad-coactions library, programs and test: Coactions of comonads on functors
comonad-extras library: Exotic comonad transformers
comonad-transformers library: This package has been merged into comonad 4.0
comonads-fd library: This package has been merged into comonad 4.0
data-lens library: Used to be Haskell 98 Lenses
data-lens-fd library: Lenses
data-lens-ixset library and test: A Lens for IxSet
day-comonoid library: A comonoid w.r.t. Day
folds library: Beautiful Folding
functor-monad library and test: FFunctor: functors on (the usual) Functors
graphted library: Graph indexed monads.
kan-extensions library: Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
partial-lens library: Haskell 98 Partial Lenses
representable-tries library: Tries from representations of polynomial functors
rivers library: Rivers are like Streams, but different.
semigroupoids library: Semigroupoids: Category sans id
streams library: Various Haskell 2010 stream comonads
zipper-extra library: Zipper utils that weren't in Control.Comonad.Store.Zipper

Compatibility

base-compat library: A compatibility layer for base
base-compat-batteries library and test: base-compat with extra batteries
base-orphans library and test: Backwards-compatible orphan instances for base
binary-orphans library and test: Compatibility package for binary; provides instances
data-array-byte library and test: Compatibility layer for Data.Array.Byte
deriving-compat library and test: Backports of GHC deriving extensions
foldable1-classes-compat library, test and benchmark: Compatibility package for the Foldable1 and Bifoldable1 type classes
ghc-bignum-orphans library: Backwards-compatible orphan instances for ghc-bignum
ghc-compat-plugin library and tests: Eases support for multiple GHC versions
ghc-magic-dict-compat library and test: A compatibility layer and GHC plugin for `withDict` from "GHC.Magic.Dict".
mtl-compat library: Backported Control.Monad.Except module from mtl
prelude-compat library: Provide Prelude and Data.List with fixed content across GHC versions
template-haskell-compat-v0208 library: Backward-compatibility layer for Template Haskell newer than 2.8
time-compat library and tests: Compatibility package for time
transformers-compat library: A small compatibility shim for the transformers library
types-compat library: ghc-7.6/7.8 compatible GHC.TypeLits, Data.Typeable and Data.Proxy.
wherefrom-compat library and test: A compatibility layer for GHC's 'wherefrom' function

Compilation

platinum-parsing library, program and test: General Framework for compiler development.

Compiler

agda2hs program: Compiling Agda code to readable Haskell.
ajhc library and programs: Haskell compiler that produce binary through C language
alpha program: A compiler for the Alpha language
annah library and program: Medium-level language that desugars to Morte
binaryen library and test: Haskell bindings to binaryen
bond library, program and test: Bond schema compiler and code generator
cao program: CAO Compiler
circ library: A Compiler IR Compiler.
core-compiler library and program: compile your own mini functional language with Core
datafix library, program, tests and benchmark: Fixing data-flow problems
dataflow library, program and test: Generate Graphviz documents from a Haskell representation.
dhall library, program, tests and benchmarks: A configuration language guaranteed to terminate
dhall-bash library and program: Compile Dhall to Bash
dhall-csv library, programs and test: Convert bidirectionally between Dhall and CSV files.
dhall-docs library, program and tests: Generate HTML docs from a dhall package
dhall-json library, programs and test: Convert between Dhall and JSON or YAML
dhall-nix program: Dhall to Nix compiler
dhall-openapi library and program: Convert an OpenAPI specification to a Dhall package
dhall-text program: Template text using Dhall
dhall-text-shell library and program: Render dhall text with shell commands as function arguments
dhall-toml library, programs and tests: Convert between Dhall and TOML
dhall-yaml library, programs and test: Convert between Dhall and YAML
Elm library, programs and tests: The Elm language module.
elm-bridge library and tests: Derive Elm types and Json code from Haskell types, using aeson's options
elm-build-lib library: Compile Elm code to JS within Haskell
elm-compiler library, programs and test: Values to help with elm-package, elm-make, and elm-lang.org.
elm-core-sources library: Source files for the Elm runtime and standard libraries
elm-reactor program: Interactive development tool for Elm programs
elm-server program: Server for developing Elm projects
elm-street library, programs and test: Crossing the road between Haskell and Elm
elm-syntax library and test: Elm syntax and pretty-printing
feldspar-compiler library, tests and benchmark: Compiler for the Feldspar language
flite library and programs: f-lite compiler, interpreter and libraries
flp library, programs and test: A layout spec language for memory managers implemented in Rust.
formal program: A statically typed, functional programming language
forml program: A statically typed, functional programming language
gf library, program and test: Grammatical Framework
gibbon program: A compiler for operating on serialized trees.
gotyno-hs library, program and test: A type definition compiler supporting multiple output languages.
hackager program: Hackage testing tool
haskell-to-elm library, programs and test: Generate Elm types and JSON encoders and decoders from Haskell types
haskelm library, program and test: Elm to Haskell translation
haste-compiler programs: Haskell To ECMAScript compiler
hcc program: A toy C compiler.
helium library and programs: The Helium Compiler.
hgom program: An haskell port of the java version of gom
hs2bf program: Haskell to Brainfuck compiler
jsonnet library, program, test and benchmark: Jsonnet implementaton in pure Haskell
KiCS library and programs: A compiler from Curry to Haskell
lambda2js program: Untyped Lambda calculus to JavaScript compiler
lambdacube-compiler library and programs: LambdaCube 3D is a DSL to program GPUs
lazyboy library and test: An EDSL for programming the Game Boy.
lhc programs: LHC Haskell Compiler
maxsharing program: Maximal sharing of terms in the lambda calculus with letrec
microc library, program and test: microc compiler
miv program and test: Vim plugin manager written in Haskell
morloc library, program and test: A multi-lingual, typed, workflow language
morte library, program, test and benchmark: A bare-bones calculus of constructions
ntha library, program and test: A tiny statically typed functional programming language.
optimusprime program: A supercompiler for f-lite
pcf library: A one file compiler for PCF
platinum-parsing library, program and test: General Framework for compiler development.
polyglot library and program: Haskell to Purescript & Scala 3 transpiler
record-preprocessor library, program and benchmark: Compiler preprocessor introducing a syntactic extension for anonymous records
servant-to-elm library, program and test: Automatically generate Elm clients for Servant APIs
sjsp program: Simple JavaScript Profiler
statechart program: Compiles Rhapsody statecharts to C.
sunroof-compiler library: Monadic Javascript Compiler
sunroof-examples programs: Tests for Sunroof
supero program: A Supercompiler
tiger program: Tiger Compiler of Universiteit Utrecht
zeolite-lang library, programs and test: Zeolite is a statically-typed, general-purpose programming language.

Compiler Plugin

apply-unordered library and test: Apply a function to an argument specified by a type level Nat
BinderAnn library and test: Source-to-source plugin for enhancing EDSLs with static annotations
const-math-ghc-plugin library and test: Compiler plugin for constant math elimination
cse-ghc-plugin library: Compiler plugin for common subexpression elimination
ecta-plugin library: Hole-Fit Synthesis using ECTAs
ghc-clippy-plugin library: Override GHC error messages to the user's liking
ghc-plugin-non-empty library and test: GHC Plugin for non-empty lists
ghc-plugs-out library and tests: Type checker plugins without the type checking.
ghc-proofs library and tests: GHC plugin to prove program equations by simplification
haskell-stack-trace-plugin library, program and test: haskell-stack-trace-plugin
henforcer library and test: GHC plugin to enforce user specified rules on code.
inspection-testing library and tests: GHC plugin to do inspection testing
magic-tyfams library: Write plugins for magic type families with ease
ollama-holes-plugin library: A typed-hole plugin that uses LLMs to generate valid hole-fits
om-plugin-imports library and test: Plugin-based explicit import generation.
seqaid library and programs: Dynamic strictness control, including space leak repair
smuggler2 library and test: GHC Source Plugin that helps to minimise imports and generate explicit exports
strict-ghc-plugin library: Compiler plugin for making Haskell strict
typecheck-plugin-nat-simple library and tests: Simple type check plugin which calculate addition, subtraction and less-or-equal-than
unroll-ghc-plugin library: Compiler plugin for loop unrolling

Compiler Plugins

ghc-compat-plugin library and tests: Eases support for multiple GHC versions

Compilers

bound-extras library and test: ScopeH and ScopeT extras for bound
funcons-intgen program: Generate Funcons interpreters from CBS description files
fungll-combinators library: GLL parser with simple combinator interface
gll library: GLL parser with simple combinator interface
hhlo library, programs and test: Haskell Frontend for StableHLO — type-safe ML training/inference on CPU and GPU
kaleidoscope library and programs: Haskell Kaleidoscope tutorial
kempe library, program, tests and benchmark: Kempe compiler
llvm-codegen library and test: A DSL for LLVM IR code generation based on llvm-hs.
llvm-hs-pretty library and test: A pretty printer for LLVM IR.

Compilers/Interpreters

accelerate library, programs and tests: An embedded language for accelerated array processing
accelerate-cuda library: Accelerate backend for NVIDIA GPUs
accelerate-llvm library: Accelerate backend component generating LLVM IR
accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
alms program: a practical affine language
amrun program: Interpreter for AM
angle library, program, test and benchmarks: A small, general-purpose programming language.
asic program: Action Script Instrumentation Compiler
asil library: Action Script Instrumentation Library
atuin program: Embedded Turtle language compiler in Haskell, with Epic output
baskell program: An interpreter for a small functional language
Befunge93 program: An interpreter for the Befunge-93 Programming Language
bound library and tests: Making de Bruijn Succ Less
bound-gen library: Unwrap Scope's with globally fresh values
brainfuck library and program: Brainfuck interpreter
brainfuck-monad library: BrainFuck monad
cfipu program: cfipu processor for toy brainfuck-like language
cfopu program: cfopu processor
cnc-spec-compiler program: Compiler/Translator for CnC Specification Files.
compilation library: Haskell functionality for quickly assembling simple compilers.
core-haskell program: A subset of Haskell using in UCC for teaching purpose
CPBrainfuck program: A simple Brainfuck interpretter.
CPL program: An interpreter of Hagino's Categorical Programming Language (CPL).
dcpu16 library, program and test: DCPU-16 Emulator & Assembler
ddc-base library: Disciplined Disciple Compiler common utilities.
ddc-build library: Disciplined Disciple Compiler build framework.
ddc-code library: Disciplined Disciple Compiler base libraries.
ddc-core library: Disciplined Disciple Compiler core language and type checker.
ddc-core-babel library: Disciplined Disciple Compiler PHP code generator.
ddc-core-eval library: Disciplined Disciple Compiler semantic evaluator for the core language.
ddc-core-flow library: Disciplined Disciple Compiler data flow compiler.
ddc-core-llvm library: Disciplined Disciple Compiler LLVM code generator.
ddc-core-salt library: Disciplined Disciple Compiler C code generator.
ddc-core-simpl library: Disciplined Disciple Compiler code transformations.
ddc-core-tetra library: Disciplined Disciple Compiler intermediate language.
ddc-driver library: Disciplined Disciple Compiler top-level driver.
ddc-interface library: Disciplined Disciple Compiler user interface support.
ddc-source-tetra library: Disciplined Disciple Compiler source language.
ddc-tools programs: Disciplined Disciple Compiler command line tools.
ddc-war program: Disciplined Disciple Compiler test driver and buildbot.
ddci-core program: Disciple Core language interactive interpreter.
dedukti library and programs: A type-checker for the λΠ-modulo calculus.
Delta-Lambda program and test: A demonstration interpreter for type system delta-lambda (of N.G. De-bruijn)
egison library, program, test and benchmark: Programming language with non-linear pattern-matching against non-free data
egison-tutorial program: A tutorial program for the Egison programming language
epic library and program: Compiler for a simple functional language
exploring-interpreters library: A generic exploring interpreter for exploratory programming
fst library, program and test: Finite state transducers
funcons-simple program: A modular interpreter for executing SIMPLE funcons
funcons-tools library and programs: A modular interpreter for executing funcons
funcons-values library: Library providing values and operations on values in a fixed universe.
Fungi program: Funge-98 interpreter written in Haskell
ghci-haskeline program: An implementation of ghci using the Haskeline line-input library.
ghclive library and program: Interactive Haskell interpreter in a browser.
glambda library, program and test: A simply typed lambda calculus interpreter, written with GADTs
graph-rewriting-lambdascope program: Lambdascope, an optimal evaluator of the lambda calculus
graph-rewriting-ski programs: Two interactive evalutors of the SKI combinator calculus
graph-rewriting-trs program: Interactive evaluation of first-order applicative term rewrite systems
graph-rewriting-ww program: Interactive evaluator of the lambda-calculus with explicit sharing
gulcii program: graphical untyped lambda calculus interactive interpreter
HARM library and programs: A simple ARM emulator in haskell
Haschoo program: Minimalist R5RS Scheme interpreter
haskeem program: A small scheme interpreter
helisp program: An incomplete Elisp compiler
heystone library: Haskell bindings for the Keystone assembler framework
hiccup program: Relatively efficient Tcl interpreter with support for basic operations
hint library and test: A Haskell interpreter built on top of the GHC API
hint-server library: A server process that runs hint.
hinter library and test: Runtime Haskell interpreter (GHC API wrapper)
hjs library and program: JavaScript Parser
hLLVM library and program: A library for analyzing and transforming LLVM (3.5) assembly codes
hoe program: hoe: Haskell One-liner Evaluator
hoopl library and test: A library to support dataflow analysis and optimization
husk-scheme library and programs: R5RS Scheme interpreter, compiler, and library.
husk-scheme-libs library: Extra libraries for the husk Scheme platform.
hybrid program: A implementation of a type-checker for Lambda-H
hyper-haskell-server program: Server back-end for the HyperHaskell graphical Haskell interpreter
hypertypes library, test and benchmark: Typed ASTs
idris library, programs and test: Functional Programming Language with Dependent Types
INblobs program: Editor and interpreter for Interaction Nets
intcode library and test: Advent of Code 2019 intcode interpreter
ir-builder library and test: Monadic DSL for constructing LLVM IR
Jikka library, program and tests: A transpiler from Python to C++ for competitive programming
koneko library, program and test: a concatenative not-quite-lisp for kittens
lambda program: Interpreters for lambda calculus, calculus of constructions, and more
lambda-ast library: Lambda Calculi Abstract Syntax Trees
lambdacube program: A simple lambda cube type checker.
LambdaShell program: Simple shell for evaluating lambda expressions
language-dickinson library, program, test and benchmark: A language for generative literature
llvm library: Bindings to the LLVM compiler toolkit.
llvm-base library: FFI bindings to the LLVM compiler toolkit.
llvm-base-util library: Utilities for bindings to the LLVM compiler toolkit.
llvm-dsl library and test: Support for writing an EDSL with LLVM-JIT as target
llvm-extension library and program: Processor specific intrinsics for the llvm interface
llvm-extra library, program and test: Utility functions for the llvm interface
llvm-ffi library and programs: FFI bindings to the LLVM compiler toolkit.
llvm-ffi-tools programs: Tools for maintaining the llvm-ffi package
llvm-general library and test: General purpose LLVM bindings
llvm-general-pure library and test: Pure Haskell LLVM functionality (no FFI).
llvm-general-quote library and test: QuasiQuoting llvm code for llvm-general
llvm-hs library and test: General purpose LLVM bindings
llvm-hs-pure library and test: Pure Haskell LLVM functionality (no FFI).
llvm-ht library: Bindings to the LLVM compiler toolkit with some custom extensions.
llvm-party library and test: General purpose LLVM bindings
llvm-tf library, programs and test: Bindings to the LLVM compiler toolkit using type families.
lvmlib library and program: The Lazy Virtual Machine (LVM).
lvmrun program: The Lazy Virtual Machine (LVM) Runtime System.
mappy library, program and test: A functional programming language focused around maps.
nom library and tests: Name-binding & alpha-equivalence
nominal library: Binders and alpha-equivalence made easy
noodle library and programs: the noodle programming language
NXTDSL library and program: Generate NXC Code from DSL
omega program: A purely functional programming language and a proof system
oplang program: Stack-based esoteric programming language
peg program: a lazy non-deterministic concatenative programming language
pesca program: Proof Editor for Sequent Calculus
pi-forall library and program: Demo implementation of typechecker for dependently-typed language
piet library and program: A Piet interpreter
pretty-loc library: Tracking and highlighting of locations in source files
risc386 program: Reduced instruction set i386 simulator
secd library, program and test: A Haskell implementation of the SECD abstract machine
secdh library and program: SECDH Machine Simulator
shell-monad library: shell monad
shimmer library and program: The Reflective Lambda Machine
simple-atom library: Atom (or symbol) datatype for fast comparision and sorting.
simple-pascal library and program: Simplified Pascal language to SSVM compiler
simple-stacked-vm library and program: Simple stacked virtual machine: assembler, disassembler, bytecode interpreter
soyuz library and program: DCPU-16 architecture utilities for Notch's 0x10c game.
staticanalysis library: Reusable static analysis interfaces and modules.
swf library: A library for creating Shockwave Flash (SWF) files
tempus program: Interpreter for the FRP language Tempus
textmatetags program: A simple Haskell program to provide tags for Haskell code completion in TextMate
TinyLaunchbury library: Simple implementation of call-by-need using Launchbury's semantics
transf library and program: Text transformer and interpreter.
TypeIlluminator program: TypeIlluminator is a prototype tool exploring debugging of type errors/
unbound library and test: Generic support for programming with names and binders
unification-fd library: Simple generic unification algorithms.
unique-lang program: Esoteric programming language where each number can only appear once
unlambda library and program: Unlambda interpreter
uu-cco library: Utilities for compiler construction: core functionality
uu-cco-examples programs: Utilities for compiler construction: example programs
uu-cco-hut-parsing library: Utilities for compiler construction: Feedback wrapper around parser in uulib
uu-cco-uu-parsinglib library: Utilities for compiler construction: Feedback wrapper around parser in uu-parsinglib
vintage-basic program and test: Interpreter for microcomputer-era BASIC
whitespace program: Whitespace, an esoteric programming language.
yabi program: Yet Another Brainfuck Interpreter
zot program: Zot language

Composite

compdoc library: Parse a Pandoc to a composite value.
compdoc-dhall-decoder library: Allows you to write FromDhall instances for Compdoc
composite-cassava library and test: Csv parsing functionality for composite.
composite-dhall library and test: Dhall instances for composite records.
composite-lens-extra library: Extra lens functions for composite.
composite-tuple library: Tuple functions for composite records.
composite-xml library and test: RecXML Type
fcf-composite library and test: Type-level computation for composite using first-class-families.
polysemy-methodology-composite library: Functions for using polysemy-methodology with composite.

Composition

Aoide library and program: A simple music library that can generate Lilypond and MIDI files.
higherorder library: Some higher order functions for Bool and []
hofix-mtl library: defining @mtl@-ready monads as * -> * fixed-points
invertible library and test: bidirectional arrows, bijective functions, and invariant functors
invertible-hlist library: invertible functions and instances for HList
invertible-hxt library: invertible transformer instances for HXT Picklers
pointless-fun library: Some common point-free combinators.
reverse-apply library: Standard version of the reverse apply operator.
star-to-star library: the * -> * types, operators, and covariant instances.
star-to-star-contra library: contravariant instances for * -> * types and operators.
TypeCompose library: Type composition classes & instances

Comprehend

stratosphere-comprehend library: Stratosphere integration for AWS Comprehend.

Compression

brotli library and test: Brotli (RFC7932) compression and decompression
brotli-conduit library and test: Conduit interface for Brotli (RFC7932) compression.
brotli-streams library and test: IO-Streams interface for Brotli (RFC7932) compression
bz2 library, test and benchmark: Bindings to libbz2
bzip-signature library: Backpack signature for BZip compression
compressed library: Compressed containers and reducers
conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
huffman library: Pure Haskell implementation of the Huffman encoding algorithm
lz4-conduit library, program and test: LZ4 compression for conduits
lz4-hs library, test and benchmarks: lz4 bindings for Haskell
lzip library: Lzip compression / Lzlib bindings
lzlib library, test and benchmarks: lzlib bindings
lzma library and test: LZMA/XZ compression and decompression
lzma-conduit library and test: Conduit interface for lzma/xz compression.
lzma-enumerator library and test: Enumerator interface for lzma/xz compression.
lzma-static test: LZMA/XZ compression and decompression (static)
lzma-streams library and test: IO-Streams interface for lzma/xz compression
lzo library, test and benchmark: minilzo bundled for Haskell
machines-zlib library: Decompression support for machines
parquet-haskell library and tests: Streaming Parquet reader
parquet-hs library and tests: Streaming Parquet reader
pipes-brotli library and test: Brotli (RFC7932) compressors and decompressors for the Pipes package
pipes-zlib library and test: Zlib and GZip compression and decompression for Pipes streams
potoki-zlib library: Streaming ZLib decompression
sak program: Compression command-line tool
sequitur library, program, test and benchmark: Grammar-based compression algorithms SEQUITUR
shake-bindist library: Rules for binary distributions
snappy library and test: Fast Haskell bindings to Google’s Snappy compression library.
snappy-framing library: Snappy Framing Format in Haskell
snappy-lazy library: Lazy bytestring compression and decompression
streaming-brotli library and test: Streaming interface for Brotli (RFC7932) compression
streaming-lzma library and test: Streaming interface for LZMA/XZ compression
streamly-lz4 library, test and benchmark: Streamly combinators for LZ4 compression
webp library and test: JuicyPixels support for WebP format
xz library and test: LZMA/XZ compression and decompression
xz-clib library: LZMA/XZ clibs
zlib-enum program: Enumerator interface for zlib compression

Computational Geometry

marching-cubes library: Marching Cubes
marching-cubes2 library: Marching Cubes

Computer Algebra

cash library: the Computer Algebra SHell

Concourse

dhall-fly library, program and test: Translate concourse config from Dhall to YAML

Concurrency

accelerate library, programs and tests: An embedded language for accelerated array processing
accelerate-cuda library: Accelerate backend for NVIDIA GPUs
accelerate-llvm library: Accelerate backend component generating LLVM IR
accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
actor library: Actors with multi-headed receive clauses
alarmclock library and test: Wake up and perform an action at a certain time.
arbor-lru-cache library and test: LRU cache based on STM
async library, programs and test: Run IO operations asynchronously and wait for their results
async-combinators library and test: Async combinators
async-dejafu library and test: Run MonadConc operations asynchronously and wait for their results.
async-extras library: Extra Utilities for the Async Library
async-manager library and program: A thread manager for async
async-timer library and test: Provides API for timer based execution of IO actions
atomic-counter library, test and benchmark: Mutable counters that can be modified with atomic operatinos
atomic-modify library: A typeclass for mutable references that have an atomic modify operation.
atomic-modify-general library and test: Generalizations of atomicModifyIORef
atomic-primops-vector library and test: Atomic operations on Data.Vector types
AVar library: Mutable variables with Exception handling and concurrency support.
bits-atomic library and program: Atomic bit operations on memory locations for low-level synchronization
bitset-word8 library, test and benchmark: Space efficient set of Word8 and some pre-canned sets useful for parsing HTTP
blocking-transactions library: Composable, blocking transactions.
bounded-qsem library: Bounded quantity semaphores.
bounded-tchan library: Bounded Transactional channels (queues)
BoundedChan library: Implementation of bounded channels.
butter library and tests: Monad Transformer for Asyncronous Message Passing
caf library: A library of Concurrency Abstractions using Futures.
capataz library and test: OTP-like supervision trees in Haskell
cfuture library and test: A Future type that is interruptible anytime and exportable to C/C++.
cgroup-rts-threads library and test: A container-/cgroup-aware substitute for the GHC RTS `-N` flag
chan library and test: Some extra kit for Chans
chan-split library: Concurrent Chans as read/write pairs. Also provides generic Chan pair class.
chp library: An implementation of concurrency ideas from Communicating Sequential Processes
chp-mtl library: MTL class instances for the CHP library
chp-plus library: A set of high-level concurrency utilities built on Communicating Haskell Processes
chp-spec library: A mirror implementation of chp that generates a specification of the program
chp-transformers library: Transformers instances for the CHP library
cio library: A monad for concurrent IO on a thread pool
clocked library: timer functionality to clock IO commands
cloudchor library: Lightweight and efficient choreographic programming for cloud services
cml library: Events and Channels as in Concurrent ML
collapse-util program: utility for collapsing adjacent writes
companion library: A Haskell library to provide companion threads.
conceit library: Concurrent actions that may fail with a value.
concurrency library: Typeclasses, functions, and data types for concurrency and STM.
concurrent-barrier library: Simple thread barriers
Concurrent-Cache library: A Cached variable for IO functions.
concurrent-extra library and test: Extra concurrency primitives
concurrent-hashtable library, test and benchmark: Thread-safe hash tables for multi-cores!
concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
concurrent-output library: Ungarble output from several threads or commands
concurrent-rpc library: An abstraction for inter-thread RPC based on MVars
concurrent-sa library: Concurrent simulated annealing system.
concurrent-supply library and test: A fast concurrent unique identifier supply with a pure API
concurrent-utilities library: More utilities and broad-used datastructures for concurrency.
ConcurrentUtils library: Concurrent utilities
conlogger library and program: A logger for a concurrent program.
consumers library and tests: Concurrent PostgreSQL data consumers
consumers-metrics-prometheus library: Prometheus metrics for the consumers library
coroutine-enumerator library: Bridge between the monad-coroutine and enumerator packages.
coroutine-iteratee library: Bridge between the monad-coroutine and iteratee packages.
CSPM-CoreLanguage library: Definition of a CSP core-language.
CSPM-cspm library and program: cspm command line tool for analyzing CSPM specifications.
CSPM-FiringRules library: Firing rules semantic of CSPM
CSPM-Frontend library: A CSP-M parser compatible with FDR-2.91
CSPM-Interpreter library: An interpreter for CSPM
cspmchecker programs: A command line type checker for CSPM files.
ctrie library, test and benchmarks: Non-blocking concurrent map
data-concurrent-queue library: A Library for directional queues
data-ivar library: Write-once variables with concurrency support
data-timeout library: 64-bit timeouts of nanosecond precision
dejafu library: A library for unit-testing concurrent programs.
delay library and test: More useful and humain delaying functions
drama library and programs: Actor library for Haskell
epass library: Baisc, Erlang-like message passing supporting sockets.
eprocess library: Basic Erlang-like process support for Haskell
equeue library and test: Application level triggered, and edge triggered event multiqueues.
event library: Monoidal, monadic and first-class events
expiring-mvar library: Create values which expire after a period of time.
extensible-effects-concurrent library, programs, test and benchmark: Message passing concurrency as extensible-effect
festung library, program and test: Remote multi-db SQLCipher server
flush-queue library, test and benchmark: ...
forward-chan library: Concurrent channels with a forwarding primitive
fraxl library, program and benchmark: Cached and parallel data fetching.
free-concurrent library: Free monads suitable for concurrent computation
freestyle library and test: Freestyle TUI graphics
fudgets library and programs: The Fudgets Library
future library: Supposed to mimics and enhance proposed C++ "future" features
futures library: Simple and fast implementation of Future
global-lock library: A global lock implemented without unsafePerformIO
gochan library, programs and test: Go-style channels
Graph500 library and program: Graph500 benchmark-related definitions and data set generator.
GraphHammer library: GraphHammer Haskell graph analyses framework inspired by STINGER.
GraphHammer-examples library and programs: Test harness for TriangleCount analysis.
hactor library: Lightweight Erlang-style actors for Haskell.
hactors library: Practical actors for Haskell.
hakka library and program: Minimal akka-inspired actor library
HasChor library and programs: Functional choreographic programming in Haskell
haskell-bee library and test: A lightweight library for asynchronous job workers with multiple broker backends
haskell-bee-pgmq library, program and test: PostgreSQL/PGMQ broker implementation for haskell-bee
haskell-bee-redis library and tests: Redis broker implementation for haskell-bee
haskell-bee-stm library and tests: STM broker implementation for haskell-bee
haskell-bee-tests library: Reusable test suite for any haskell-bee Broker implementation
haskell-throttle library and test: A simple throttling library, which drops messages from same group.
haxl library, programs and test: A Haskell library for efficient, concurrent, and concise data access.
haxl-effectful library and test: Effectful bindings for Haxl
haxl-facebook library and test: An example Haxl data source for accessing the Facebook Graph API
heartbeat-streams library: Heartbeats for io-streams
hint-server library: A server process that runs hint.
HLogger library and program: Simple, concurrent and easy-to-use logging library
hlogger library: Simple, concurrent, extendable and easy-to-use logging library
hoare library: Simple tools for communicating sequential processes
hydra-print library, programs and test: NCurses interface to view multiple ByteString streams in parallel.
immortal library and test: Spawn threads that never die (unless told to do so)
immortal-queue library and test: Build a pool of queue-processing worker threads.
immortal-worker library: Create worker threads that logs exceptions and restarts.
inc-ref library: A STM reference useful for incremental computing
io-throttle library and test: Limit number of IO actions started per second
iothread library: run IOs in a single thread
ivar-simple library: Write once concurrency primitives.
join library: Parallel Join Patterns with Guards and Propagation
kazura-queue library, tests and benchmark: Fast concurrent queues much inspired by unagi-chan
keera-callbacks library: Mutable memory locations with callbacks
ki library and test: A lightweight structured concurrency library
ki-effectful library and test: Adaptation of the ki library for the effectful ecosystem.
ki-unlifted library: A lightweight structured concurrency library
kickchan library and test: Kick Channels: bounded channels with non-blocking writes
lager library and test: Concurrent logging
laminar library and test: Run dependent IO actions asynchronously.
lawless-concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
lazy-async library and test: Asynchronous actions that don't start right away
legion library: Distributed, stateful, homogeneous microservice framework.
libcspm library and test: A library providing a parser, type checker and evaluator for CSPM.
lifted-async library, tests and benchmarks: Run lifted IO operations asynchronously and wait for their results
lifted-stm library: STM operations lifted through monad transformer stacks
lifted-threads library: lifted IO operations from the threads library
linear-locks library and test: Locking primitives free of deadlocks.
lockpool library: set a maximum on the number of concurrent actions
lrucaching-haxl library: Combine lrucaching and haxl.
lub library: information operators: least upper bound (lub) and greatest lower bound (glb)
lukko library and tests: File locking
lvar library: TMVar that can be listened to
lvish library and test: Parallel scheduler, LVar data structures, and infrastructure to build more.
massiv-scheduler library and tests: Work stealing scheduler for Massiv (Массив) and other parallel applications.
mech library: mecha are the most complex composite machines known to humanity, lets build them well!
Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
midair library: Hot-swappable FRP
monad-coroutine library: Coroutine monad transformer for suspending and resuming monadic computations
monad-schedule library and test: A new, simple, composable concurrency abstraction.
monadIO library: Overloading of concurrency variables
mstate library: MState: A consistent State monad for concurrent applications.
multisetrewrite library: Multi-set rewrite rules with guards and a parallel execution scheme
mvar-lock library: A trivial lock based on MVar
mvc library: Model-view-controller
mvc-updates library: Concurrent and combinable updates
named-lock library: A named lock that is created on demand.
nano-erl library: Small library for Erlang-style actor semantics
oath library, test and benchmark: Composable concurrent computation done right
ochan library and test: Owned channels in the Ownership Monad
om-actor library: Actor pattern utilities.
orderly-workers library: Fork concurrent worker threads and produce ordered results
parallel-io library and programs: Combinators for executing IO actions in parallel on a thread pool.
parallel-tree-search library: Parallel Tree Search
persistent-map library: A thread-safe (STM) persistency interface for finite map types.
pipes-cliff library and programs: Streaming to and from subprocesses using Pipes
pipes-concurrency library and test: Concurrency for the pipes ecosystem
polysemy-conc library and test: Polysemy effects for concurrency
post-mess-age library: Send messages to a handle concurrently without getting them mixed.
prefetch program: Prefetch stdin even before stdout is ready
priority-sync library and program: Cooperative task prioritization.
PriorityChansConverger library: Read single output from an array of inputs - channels with priorities
privileged-concurrency library: Provides privilege separated versions of the concurrency primitives.
promise library: A monadic interface for async
pulse library: Synchronize actions to a time pulse
qsem library: quantity semaphores
rawlock library and test: A writer-biased RAW lock.
reactor library: Reactor - task parallel reactive programming
restricted-workers library: Running worker processes under system resource restrictions
rio-process-pool library, program, test and benchmark: A library for process pools coupled with asynchronous message queues
roundRobin library and test: A simple round-robin data type
rwlock library: Multiple-read / single-write locks
SafeSemaphore library and test: Much safer replacement for QSemN, QSem, and SampleVar
scc library, program and test: Streaming component combinators
scheduler library and tests: Work stealing scheduler.
scotty-haxl library: Combine scotty and haxl
semaphore-plus library: Various concurrency abstractions built on top of semaphores
shared-resource-cache library and test: A thread-safe cache for sharing resources across threads with automatic expiry
sharedio library: Bundles shared calls to IO functions to perform them only once
shibuya-core library and test: Supervised queue processing framework for Haskell
shibuya-kafka-adapter library and test: Kafka adapter for the Shibuya queue processing framework
shibuya-kiroku-adapter library and test: Kiroku event store adapter for the Shibuya queue processing framework
shibuya-metrics library: Metrics web server for Shibuya queue processing framework
shibuya-pgmq-adapter library and test: PGMQ adapter for the Shibuya queue processing framework
simple-actors library: A library for more structured concurrent programming, based on the Actor Model
singnal library: Singnal
sirkel library: Sirkel, a Chord DHT
skip-var library: Skip variables
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
spawn library: Tiny library for concurrent computations
spectacle library and tests: Embedded specification language & model checker in Haskell.
speculation library: A framework for safe, programmable, speculative parallelism
split-channel library: Control.Concurrent.Chan split into sending and receiving halves.
split-tchan library: STM's TChan split into sending and receiving halves.
sport library, program and test: UNIX serial port
Stasis library and program: A simple MVCC like library
stc-lang library, program and test: A library for implicit, monadic dataflow parallelism
stm library: Software Transactional Memory
stm-channelize library: Transactional I/O for duplex streams
stm-chans library: Additional types of channels for STM.
stm-chunked-queues library and test: Chunked Communication Queues
stm-conduit library and tests: Introduces conduits to channels, and promotes using conduits concurrently.
stm-containers library and test: Containers for STM
stm-extras library: Extra STM functions
stm-hamt library, test and benchmark: STM-specialised Hash Array Mapped Trie
stm-incremental library and test: A library for constructing incremental computations
stm-io-hooks library: Launch your IO-actions from within the STM monad
stm-lifted library: Software Transactional Memory lifted to MonadIO
stm-orelse-io library: Choose between the return value of an STM operation and an IO action.
stm-promise library and test: Simple STM Promises for IO computations and external processes
stm-queue-extras library: Extra queue utilities for STM
stm-ringbuffer library, test and benchmark: Ring buffer implementation in STM
stm-stats library: retry statistics for STM transactions
stmcontrol library: Control communication among retrying transactions
streamly library: Streaming data pipelines with declarative concurrency
streamly-examples programs: Examples for Streamly
strict-checked-vars library and test: Strict MVars and TVars with invariant checking for IO and IOSim
strict-mvar library and test: Strict MVars for IO and IOSim
strict-stm library: Strict STM interface polymorphic over stm implementation.
supervisors library and test: Monitor groups of threads with non-hierarchical lifetimes.
suspend library: Simple package that allows for long thread suspensions.
sync library: A fast implementation of synchronous channels with a CML-like API
synchronous-channels library: Synchronous communication channels
tag-bits library: Provides access to the dynamic pointer tagging bits used by GHC.
tbox library: Transactional variables and data structures with IO hooks
temporal-sdk library and test
temporal-sdk-core library
theatre library: Minimalistic actor library
theatre-dev library and test: Minimalistic actor library experiments
thespian library: Lightweight Erlang-style actors for Haskell
thread-hierarchy library and test: Simple Haskell thread management in hierarchical manner
thread-supervisor library and test: A simplified implementation of Erlang/OTP like supervisor over thread
thread-utils-context library, test and benchmarks: Garbage-collected thread local storage
thread-utils-finalizers library and test: Perform finalization for threads.
threadmanager library: (deprecated in favor of 'threads') Simple thread management
ThreadObjects library: Mutable objects that reside in their own threads.
threads library and test: Fork threads and wait for their result
threads-supervisor library, program and test: Simple, IO-based library for Erlang-style thread supervision
throttle-io-stream library and test: Throttler between arbitrary IO producer and consumer functions
throttled library: Concurrent processing of a Foldable, throttled by CPU count.
ticker library and tests: A concurrent utility inspired by Ticker in golang
timeout library and test: Generalized sleep and timeout functions
timeout-control library: Updatable timeouts as a Monad transformer
timeout-with-results library: Runs a time-limited computation alowing it to return intermediate results.
timers library: Simple package that implements timers.
timers-updatable library: timers which are updatable in the remaining time
token-bucket library and test: Rate limiter using lazy bucket algorithm
token-limiter library, program and test: Fast rate limiting using the token bucket algorithm (BSD)
transient library and test: composing programs with multithreading, events and distributed computing
tskiplist library: A Skip List Implementation in Software Transactional Memory (STM)
ttrie library, test and benchmark: Contention-free STM hash map
twilight-stm library: STM library with safe irrevocable I/O and inconsistency repair
typed-duration library: Thread delay and timeout functions with typed arguments
unagi-bloomfilter library, program, test and benchmark: A fast, cache-efficient, concurrent bloom filter
unagi-chan library, test and benchmarks: Fast concurrent queues with a Chan-like API, and more
unagi-streams library: Unagi Chan IO-Streams
unamb library and program: Unambiguous choice
unamb-custom library: Functional concurrency with unamb using a custom scheduler.
unbounded-delays library: Unbounded thread delays and timeouts
unclogging library, program and test: a library which implements easy, concurrent and pretty logging
unfork library: Make any action thread safe
unique library: Fully concurrent unique identifiers
unlift-stm library: (un)lifted classes and functions for the STM monad
unliftio-messagebox library, program, test and benchmark: Fast and robust message queues for concurrent processes
unsafe-promises library: Create pure futures using lazy IO.
wait-handle library: Wait handles are MVars which can only be written to once, ...
waitfree library: A wrapping library for waitfree computation.

Concurrent

chaselev-deque library and test: Chase & Lev work-stealing lock-free double-ended queues (deques).
concurrent-split library: MVars and Channels with distinguished input and output side
forkable-monad library: An implementation of forkIO for monad stacks.
lockfree-queue library and test: Michael and Scott lock-free queues.
net-concurrent library: Concurrent over the network execution library
par-traverse library: Traverse a directory in parallel
promises library: Lazy demand-driven promises
sirkel library: Sirkel, a Chord DHT
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
spawn library: Tiny library for concurrent computations
stm-split library: TMVars, TVars and TChans with distinguished input and output side
threaded library and test: Manage concurrently operating threads without having to spark them
throttled-io-loop library and test: Loop over an action but throttle it to a certain rate
timeout-snooze library and test: Efficient timeout with reset

Conduit

amqp-streamly library and test: A simple streamly wrapper for amqp
ascii85-conduit library and test: Conduit for encoding ByteString into Ascii85
atom-conduit library and tests: Streaming parser/renderer for the Atom 1.0 standard (RFC 4287).
attoparsec-conduit library: Consume attoparsec parsers via conduit. (deprecated)
base64-conduit library and test: Base64-encode and decode streams of bytes. (deprecated)
binary-conduit library and test: data serialization/deserialization conduit library
bits-conduit library, test and benchmark: Bitstream support for Conduit
blaze-builder-conduit library: Convert streams of builders to streams of bytestrings. (deprecated)
brotli-conduit library and test: Conduit interface for Brotli (RFC7932) compression.
cereal-conduit library and test: Turn Data.Serialize Gets and Puts into Sources, Sinks, and Conduits
conduit library, test and benchmarks: Streaming data processing library.
conduit-algorithms library, test and benchmark: Conduit-based algorithms
conduit-combinators library: DEPRECATED Functionality merged into the conduit package itself
conduit-concurrent-map library and test: Concurrent, order-preserving mapping Conduit
conduit-connection library and test: Conduit source and sink for Network.Connection.
conduit-extra library, test and benchmark: Batteries included conduit: adapters for common libraries.
conduit-iconv library, test and benchmark: Conduit for character encoding conversion.
conduit-merge library: Merge multiple sorted conduits
conduit-parse library and tests: Parsing framework based on conduit.
conduit-resumablesink library and test: Allows conduit to resume sinks to feed multiple sources into it.
conduit-tokenize-attoparsec library, program and test: Conduits for tokenizing streams.
conduit-vfs library and test: Virtual file system for Conduit; disk, pure, and in-memory impls.
conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
conduit-zstd library and test: Conduit-based ZStd Compression
couchdb-conduit library and test: Couch DB client library using http-conduit and aeson
crypto-conduit library and test: Conduit interface for cryptographic operations (from crypto-api).
cryptohash-conduit library: cryptohash conduit
crypton-conduit library and test: crypton conduit
cryptonite-conduit library and test: cryptonite conduit
csv-conduit library and test: A flexible, fast, conduit-based CSV parser library for Haskell.
decoder-conduit library: Conduit for decoding ByteStrings using Data.Binary.Get
esqueleto-streaming library: Memory-constant streaming of Esqueleto results from PostgreSQL
filesystem-conduit library and test: Use system-filepath data types with conduits. (deprecated)
fluent-logger-conduit library: Conduit interface for fluent-logger
fold-debounce-conduit library and test: Regulate input traffic from conduit Source with Control.FoldDebounce
fsnotify-conduit library and test: Get filesystem notifications as a stream of events
ftp-conduit library: FTP client package with conduit interface based off http-conduit
hasql-streams-conduit library: Stream Hasql queries with Conduit
hinotify-conduit library and test: inotify conduit sources
hreq-conduit library and tests: Conduit streaming support for Hreq.
hs-opentelemetry-instrumentation-conduit library and test: OpenTelemetry instrumentation for Conduit streaming pipelines
html-conduit library and test: Parse HTML documents using xml-conduit datatypes.
http-conduit library and test: HTTP client package with conduit interface and HTTPS support.
http-conduit-browser library and test: Browser interface to the http-conduit package
hw-all library: Demo library
hw-conduit library, tests and benchmark: Conduits for tokenizing streams.
hw-conduit-merges library and test: Additional merges and joins for Conduit
hw-succinct library: Succint datastructures
imagesize-conduit library and test: Determine the size of some common image formats.
jsonrpc-conduit library and test: JSON-RPC 2.0 server over a Conduit.
lz4-conduit library, program and test: LZ4 compression for conduits
lzma-conduit library and test: Conduit interface for lzma/xz compression.
network-conduit library: Stream socket data using conduits. (deprecated)
opml-conduit library and tests: Streaming parser/renderer for the OPML 2.0 format.
persistent-postgresql-streaming library: Memory-constant streaming of Persistent entities from PostgreSQL
pool-conduit library: Resource pool allocations via ResourceT. (deprecated)
potoki-conduit library and test: Integration of "potoki" and "conduit"
process-conduit library and test: Conduits for processes (deprecated)
req-conduit library, test and benchmark: Conduit helpers for the req HTTP client library
resourcet library and test: Deterministic allocation and freeing of scarce resources.
resourcet-pool library: A small library to convert a Pool into an Acquire
rss-conduit library and tests: Streaming parser/renderer for the RSS standard.
sandi library, test and benchmark: Data encoding library
shell-conduit library and test: Write shell scripts with Conduit
simple-conduit library and benchmark: A simple streaming I/O library based on monadic folds
stm-conduit library and tests: Introduces conduits to channels, and promotes using conduits concurrently.
stomp-conduit library: Stompl Conduit Client
tagstream-conduit library and test: streamlined html tag parser
twitter-conduit library and tests: Twitter API package with conduit interface and Streaming API support.
udp-conduit library: Simple fire-and-forget conduit UDP wrappers
wai-conduit library: conduit wrappers for WAI
xinput-conduit library: Conduit of keys pressed by xinput
xml-conduit library and tests: Pure-Haskell utilities for dealing with XML with the conduit package.
xml-conduit-parse library and tests: Streaming XML parser based on conduits.
zip-conduit library and test: Working with zip archives via conduits
zip-stream library, programs and test: ZIP archive streaming using conduits
zlib-conduit library: Streaming compression/decompression via conduits. (deprecated)

Config

aws-mfa-credentials program: Keep your AWS credentials file up to date with MFA-carrying credentials
rasa-example-config program: Example user config for Rasa
stratosphere-config library: Stratosphere integration for AWS Config.

Configuration

app-settings library and test: A library to manage application settings (INI file-like)
aws-configuration-tools library: Configuration types, parsers & renderers for AWS services
bini library: A collection of various methods for reading and writing bini files.
boots-app library and program: Factory for quickly building an application
cfg library and tests: Type directed application configuration parsing and accessors
conf library and test: Parser for Haskell-based configuration files.
conf-json library and test: read, parse json config
conferer library and test: Configuration management library
conferer-aeson library and test: conferer's source for reading json files
conferer-dhall library and test: Configuration for reading dhall files
conferer-hedis library and test: conferer's FromConfig instances for hedis settings
conferer-hspec library and test: conferer's FromConfig instances for hspec Config
conferer-provider-dhall library and test: Configuration for reading dhall files
conferer-provider-json library and test: conferer's provider for reading json files
conferer-provider-yaml library and test: Configuration for reading yaml files
conferer-snap library and test: conferer's FromConfig instances for snap Config
conferer-source-dhall library and test: Configuration for reading dhall files
conferer-source-json library and test: conferer's source for reading json files
conferer-source-yaml library and test: Configuration for reading yaml files
conferer-warp library and test: conferer's FromConfig instances for warp settings
conferer-yaml library and test: Configuration for reading yaml files
config-ini library and tests: A library for simple INI-based configuration files.
config-manager library and test: Configuration management
config-value-getopt library: Interface between config-value and System.GetOpt
Configger library: Parse config files
configifier library, program and test: parser for config files, shell variables, command line args.
configuration-tools library, program and tests: Tools for specifying and parsing configurations
configurator library and test: Configuration management
configurator-export library and test: Pretty printer and exporter for configurations from the "configurator" library.
configurator-ng library and test: The next generation of configuration management
configurator-pg library and test: Reduced parser for configurator-ng config files
conftrack library and test: Tracable multi-source config management
descrilo library: Loads a list of items with fields
dojang library, program and test: A cross-platform dotfiles manager
dotenv library, program and test: Loads environment variables from dotenv files
dotenv-micro library: Tiny dotenv library
dyre library and test: Dynamic reconfiguration in Haskell
e9571-config-reader-haskell library and program: Automatically read config.json from the current directory
embed-config library and test: Reasonable conventions for embedding YAML configuration with Template Haskell
etc library and test: Declarative configuration spec for Haskell projects
expresso library, program and test: A simple expressions language based on row types
from-env library and test: Provides a generic way to construct values from environment variables.
global-config library and test: Global mutable configuration
hsini library and test: ini configuration files
htoml library, test and benchmark: Parser for TOML files
htoml-megaparsec library, test and benchmark: Parser for TOML files
ini library and test: Configuration files in the INI format.
ini-qq library and test: Quasiquoter for INI
json2sg library, program and test: Lossy conversion from JSON to Sugar
karabiner-config library and test: Karabiner elements configuration generation
keylayouts library: Tools for macOS .keylayout files
life-sync library, program and test: Synchronize personal configs across multiple machines.
load-env library and tests: Load environment variables from a file.
minimal-configuration library: Minimal ini like configuration library with a few extras
richenv library and test: Rich environment variable setup for Haskell
salak library, test and benchmark: Configuration (re)Loader and Parser.
salak-toml library, test and benchmark: Configuration Loader for toml
salak-yaml library, test and benchmark: Configuration Loader for yaml
SConfig library: A simple config library
secretspec library, programs and test: Haskell SDK for SecretSpec, a declarative secrets manager
settei library and test: Typed, layered, explainable configuration
settei-dhall library and tests: Dhall sources for Settei
settei-env library and test: Environment sources for Settei
settei-formats library and test: Tagged multi-format configuration loading for Settei
settei-kdl library and test: KDL v2 sources for Settei
settei-kubernetes library and test: Kubernetes mounted-directory sources for Settei
settei-optparse-applicative library and test: optparse-applicative sources for Settei
settei-yaml library and test: YAML sources for Settei
sugar library and test: A pretty, sweet data language
sugar-data library and test: Convert sugar to common data types for code generation
sugar-json library and test: Sugar with JSON
tce-conf library, programs and test: Very simple config file reading
tini library and test: Tiny INI file and configuration library with a minimal dependency footprint.
toml-reader library and tests: TOML format parser compliant with v1.0.0.
tomland library, programs and test: Bidirectional TOML serialization
typeparams library: ...
ucl library and test: Datatype and parser for the Universal Configuration Language (UCL) using libucl
yaml-config library and test: Configuration management

Connect

stratosphere-connect library: Stratosphere integration for AWS Connect.

ConnectCampaigns

stratosphere-connectcampaigns library: Stratosphere integration for AWS ConnectCampaigns.

ConnectCampaignsV2

stratosphere-connectcampaignsv2 library: Stratosphere integration for AWS ConnectCampaignsV2.

Console

argparser library and test: Command line parsing framework for console applications
binance-exports library, program and test: Generate CSV Exports of your Binance Trade History.
bnb-staking-csvs library, program and test: Generate CSV Exports of Your BNB Staking Rewards.
brick-calendar library, programs and test: Calendar widget for the Brick TUI library
buffer-pipe program: Read from stdin and write to stdout in large blocks
cltw program: Command line Twitter utility
cmdargs library and program: Command line argument processing
cmdargs-browser program: Helper to enter cmdargs command lines using a web browser
cmdtheline library and test: Declarative command-line option parsing and documentation library.
coalpit library and test: DSV (de)serialization
configuration-tools library, program and tests: Tools for specifying and parsing configurations
console-program library: Interpret the command line and a config file as commands and options
ConsoleAsk library: Simple CLI user input library
credentials-cli program: Secure Credentials Administration
csv-to-qif program and test: A small program that will read csv files and create qif files
cutter program: Cut files according to a position list
dapi program: Prints a series of dates
docopt library and test: A command-line interface parser that will make you smile
epub-tools programs and test: Command line utilities for working with epub files
epubname program: Rename epub ebook files based on meta information
equal-files program: Shell command for finding equal files
flow2dot library, program and test: Library and binary to generate sequence/flow diagrams from plain text source
follower program: Follow Tweets anonymously
garepinoh library and programs: reverse prefix notation calculator and calculation library
gemini-exports library, program and test: Generate CSV Exports of Your Gemini Trades, Transfers, & Earn Transactions
getopt-generics library and test: Create command line interfaces with ease
ginsu program: Ginsu Gale Client
givegif library, program and test: CLI Giphy search tool with previews in iTerm 2
group-by-date program: Shell command for grouping files by dates into folders
hable library: customizable pretty printer library for tables
hascal library and program: tiny calculator library and command-line program
haskdeep program: Computes and audits file hashes.
haskell-awk library, program and test: Transform text from the command-line using Haskell expressions.
haskell-say library and program: Let the Haskell logo talk to your users!
hello program: Hello World, an example package
hflags library: Command line flag parser, very similar to Google's gflags
Hish library and program
historian program: Extract the interesting bits from shell history
hledger library, program, test and benchmark: Command-line interface for the hledger accounting system
hledger-diff program: Compares the transactions in two ledger files.
hledger-flow library, program and test: An hledger workflow focusing on automated statement import and classification.
hledger-iadd library, program and test: A terminal UI as drop-in replacement for hledger add
hledger-makeitso library, program and test: An hledger workflow focusing on automated statement import and classification.
hledger-stockquotes library, program and test: Generate HLedger Price Directives From Daily Stock Quotes.
hledger-ui library and program: Terminal interface for the hledger accounting system
hranker program: Basic utility for ranking a list of items
hscrtmpl programs: Haskell shell script templates
hscurses-fish-ex program: hscurses swimming fish example
hskeleton library: Skeleton for new Haskell programs
hspresent library and program: A terminal presentation tool
hsprocess library, program and test: The Haskell Stream Processor command line utility
hunch program and test: CSS-like syntax for file system manipulation.
hunp program: Unpacker tool with DWIM
hunt-server-cli program: A Command line Interface for the Hunt server.
husky program: A simple command line calculator.
imj-measure-stdout program: An application to determine the maximum capacity of stdout buffer.
internetmarke program: Shell command for constructing custom stamps for German Post
isocline library, program and test: A portable alternative to GNU Readline
itemfield library, programs and tests: A brick Widget for selectable summary of many elements on a terminal
matchers library: Text matchers
mbox-utility program: List contents of an mbox file containing e-mails
mdo program: Command-line tool to run a command on each of the items.
misfortune library and programs: fortune-mod clone
multiarg library, programs and test: Command lines for options that take multiple arguments
no-buffering-workaround library: Workaround for GHC bug #2189.
only program: A grep-like tool for filtering on words or lines.
opn program: Open files or URLs using associated programs.
options library and test: Powerful and easy command-line option parser
options-time library and test: Command-line option types for dates and times.
optparse-applicative-dex library: Extra functions for working with optparse-applicative
parse-help library and test: generate command line arguments from a --help output
parseargs library, program and test: Parse command-line arguments
pasty program: A simple command line pasting utility
pb program: pastebin command line application
penny library, programs and test: Extensible double-entry accounting system
penny-bin programs: Deprecated - use penny package instead
penny-lib programs: Deprecated - use penny package instead
pgrep library, program and test: grep-like CLI using Parsec parsers instead of regex
photoname library, program and test: Rename photo image files based on EXIF shoot date
print-console-colors library and program: Print all ANSI console colors
pwstore-cli program and test: Command line interface for the pwstore library
qhs library, program and test: Command line tool qhs, SQL queries on CSV and TSV files.
readline library: An interface to the GNU readline library
runghc program: runghc replacement for fast repeated runs
screp library, programs and tests: grep-like CLI using Parsec parsers instead of regex
shell-utility library: Utility functions for writing command-line programs
solana-staking-csvs library, program and test: Generate CSV Exports of your Solana Staking Rewards.
spelling-suggest library and programs: Spelling suggestion tool with library and command-line interfaces.
strongswan-sql library, program and test: Interface library for strongSwan SQL backend
structured-cli library and program: Application library for building interactive console CLIs
termplot program: Plot time series in your terminal using commands stdout
themplate program: Project templating tool
thimk programs: Command-line spelling word suggestion tool
timecalc program
tkhs program and test: Simple Presentation Utility
toilet program: Manage the toilet queue at the IMO
tui-launcher program and test: Small Brick-based terminal launcher
txt-sushi library and programs: The SQL link in your *NIX chain
ui library and program: Minimalistic console UI (getLine), arrow key support (edit, browse cmd history).
uniq-deep program: uniq-deep
Win32-console library: Binding to the Win32 console API
ztail program: Multi-file, colored, filtered log tailer.

Constraint

constraint library: Reified constraints

Constraints

attenuation library: Subtyping relations and variance roles
attenuation-profunctors library: Attenuation support for Profunctors.
cluss library: simple alternative to type classes
constraints library and test: Constraint manipulation
constraints-deriving library, program and test: Manipulating constraints and deriving class instances programmatically.
constraints-emerge library and test: Defer instance lookups until runtime
constraints-extras library and program: Utility package for constraints
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
dependent-literals library: Library for dependent-literals-plugin
dependent-literals-plugin library and tests: Dependent integer literals
exists library: Existential datatypes holding evidence of constraints
ffunctor library and test: FFunctor typeclass
ifscs library and test: An inductive-form set constraint solver
iterative-forward-search library and benchmark: An IFS constraint solver
mios library, programs and test: A Minisat-based CDCL SAT solver in Haskell
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
pseudo-boolean library and test: Reading/Writing OPB/WBO files used in pseudo boolean competition
snumber library: Integer singletons with flexible representation
some-dict-of library and test: Carry evidence of constraints around
superconstraints library: Access an instance's constraints
Top library and program: Constraint solving framework employed by the Helium Compiler.
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
trivial-constraint library: Constraints that any type, resp. no type fulfills
unconstrained library: Null constraint

Consul

boots-cloud library: Factory for quickly building a microservice

Containers

cybus library, program and test: multi-dimensional arrays
expiring-containers library and test: Expiring containers
focus library and test: A general abstraction for manipulating elements of container data structures
int-multimap library and test: A data structure that associates each Int key with a set of values
keys library: Keyed functors and containers
mono-traversable-keys library: Type-classes for interacting with monomorphic containers with a key
total-maps library: Dense and sparse total maps.

Contract

assert-failure library: Syntactic sugar improving 'assert' and 'error'

Contracts

eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding

Contravariant

co-log library, programs and tests: Composable Contravariant Comonadic Logging Library
co-log-concurrent library: Asynchronous backend for co-log library
co-log-core library and test: Composable Contravariant Comonadic Logging Library
co-log-polysemy library and program: Composable Contravariant Comonadic Logging Library
contra-tracers library: ...

Control

AAI library: Abstract Application Interface.
AbortT-monadstf library: Monads-tf instances for the AbortT monad transformer.
AbortT-mtl library: mtl instances for the AbortT monad transformer
AbortT-transformers library and test: A monad and monadic transformer providing "abort" functionality
abstract-par library: Type classes generalizing the functionality of the 'monad-par' library.
acme-iot library: IO monad transformer
action-permutations library: Execute a set of actions (e.g. parsers) in each possible order
Adaptive-Blaisorblade library and program: Library for incremental computing.
allocated-processor library: Functional combinators for monadic actions that require allocation and de-allocation
alternative-extra library: Extra utilities for alternatives
alternators library: Handy functions when using transformers.
annihilator library: Semigroups with annihilators and utility functions
annotated-exception library and test: Exceptions, with checkpoints and context.
ap-normalize library and tests: Self-normalizing applicative expressions
apart library, program and test: Get all your structure and rip it apart.
apecs library, test and benchmark: Fast Entity-Component-System library for game programming
apecs-stm library, test and benchmark: STM stores for apecs
applicative-extras library: Instances for Applicative
applicative-fail library and test: Applicative functor and monad which collects all your fails
applicative-logic library: Generalized logic operations for Applicative and Alternative functors
applicative-splice library: Write applicative programs in direct style (generalizes idiom brackets).
arity-generic-liftA library and test: Provides an arity-generic version of the liftA2, liftA3... liftAn functions.
arrow-extras library: Extra functions for Control.Arrow
arrow-improve library: Improved arrows.
arrow-list library: List arrows for Haskell.
arrow-utils library and test: functions for working with arrows
arrowapply-utils library: Utilities for working with ArrowApply instances more naturally
arrows library: Arrow classes and transformers
artery library: A simple, arrow-based reactive programming
assert library and test: Helpers for Control.Exception.assert
assert-failure library: Syntactic sugar improving 'assert' and 'error'
async-refresh library and test: Package implementing core logic for refreshing of expiring data.
async-refresh-tokens library and test: Package implementing core logic for refreshing of expiring access tokens
asynchronous-exceptions library: Distinguish between synchronous and asynchronous exceptions
atelier-core library and test: Foundational Effectful-based effects and utilities
atl library: Arrow Transformer Library
attoparsec-trans library: Interleaved effects for attoparsec parsers
auto library: Denotative, locally stateful programming DSL & platform
auto-update library and test: Efficiently run periodic, on-demand actions
auto-update-unliftio library and test: auto-update unlifted to MonadUnliftIO
backtracking library and test: A backtracking monad
backtracking-exceptions library: A monad transformer for backtracking exceptions
backward-state library: A state monad that runs the state in reverse through the computation
barrier-monad library: Implementation of barrier monad, can use custom front/back type
basic-prelude library: An enhanced core prelude; a common foundation for alternate preludes.
billeksah-main program: Leksah plugin base
billeksah-main-static program: Leksah plugin base
billeksah-services library: Leksah library
bluefin-algae library, test and benchmark: Algebraic effects and named handlers in Bluefin.
boolean-like library: ...
box library: A profunctor effect system?
break library: Break from a loop
bytestring-progress library: A library for tracking the consumption of a lazy ByteString
bytestring-rematch library and test: Rematch support for ByteString
can-i-haz library and test: Generic implementation of the Has and CoHas patterns
capability library and test: Extensional capabilities and deriving combinators
capataz library and test: OTP-like supervision trees in Haskell
caps library and test: Monadic capabilities with late binding
cas-hashable library: A hashing class for content-addressed storage
cas-hashable-s3 library: ContentHashable instances for S3 objects
cas-store library and test: A content-addressed storage
Cascade library: Playing with reified categorical composition
Catana library: A monad for complex manipulation of a stream.
catch-fd library: MonadThrow and MonadCatch, using functional dependencies
categories library: Categories
category library: Categorical types and classes
category-extras library: A meta-package documenting various packages inspired by category theory
CC-delcont library: Delimited continuations and dynamically scoped variables
CC-delcont-alt library and test: Three new monad transformers for multi-prompt delimited control
CC-delcont-cxe library: A monad transformers for multi-prompt delimited control
CC-delcont-exc library: A monad transformers for multi-prompt delimited control
CC-delcont-ref library: A monad transformers for multi-prompt delimited control using refercence cells
CC-delcont-ref-tf library: A monad transformers for multi-prompt delimited control using refercence cells
cflp library: Constraint Functional-Logic Programming in Haskell
changeset library and tests: Stateful monad transformer based on monoidal actions
changeset-containers library and test: Stateful monad transformer based on monoidal actions
changeset-fused-effects library and test: Stateful monad transformer based on monoidal actions
changeset-lens library and test: Stateful monad transformer based on monoidal actions
changeset-reflex library: Stateful monad transformer based on monoidal actions
changeset-time library: Stateful monad transformer based on monoidal actions
ChannelT library: Generalized stream processors
checked-exceptions library and test: mtl-style checked exceptions
chr-core library: Constraint Handling Rules
churros library and test: Channel/Arrow based streaming computation library.
circuits library: first-class circuits
classy-effects library and test: An interface for a handler-independent, typeclass-based effect system.
classy-effects-base library and test: An interface for a handler-independent, typeclass-based effect system.
classy-effects-th library and test: Automatic compliance with the classy-effects protocols
classy-parallel library: Fork of the monad-parallel package using monad-control
classy-prelude library and test: A typeclass-based Prelude.
classy-prelude-conduit library and test: classy-prelude together with conduit functions
classy-prelude-yesod library: Provide a classy prelude including common Yesod functionality.
ClassyPrelude library: Prelude replacement using classes instead of concrete types where reasonable
Clean library: A light, clean and powerful utility library
cleff library and tests: Fast and concise extensible effects
cleff-plugin library and test: Automatic disambiguation for extensible effects
cloud-haskell library: The Cloud Haskell Application Platform
cmark-gfm-lens library and test: Collection of Lens for cmark-gfm with minimal dependencies
cmark-lens library and test: Collection of lens for CMark with minimal dependencies
co-log-effectful library and test: effectful log effect using co-log-core
codecov-haskell library, programs and test: Codecov.io support for Haskell.
coercible-utils library, test and benchmark: Utility functions for Coercible types
commandert library and test: A monad for commanders
comonad library: Comonads
comonad-coactions library, programs and test: Coactions of comonads on functors
comonad-extras library: Exotic comonad transformers
comonad-random library: Comonadic interface for random values
comonad-transformers library: This package has been merged into comonad 4.0
comonads-fd library: This package has been merged into comonad 4.0
ComonadSheet library: A library for expressing spreadsheet-like computations as the fixed-points of comonads.
Compactable library: A generalization for containers that can be stripped of Nothing
compactable library and test: A typeclass for structures which can be catMaybed, filtered, and partitioned.
composition-prelude library: Higher-order function combinators
computations library: Advanced notions of computation
concatenative library: A library for postfix control flow.
concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
concurrent-state library and program: MTL-like library using TVars
Concurrential library: Mix concurrent and sequential computation
cond library: Basic conditional and boolean operators with monadic variants.
conduino library: Lightweight composable continuation-based stream processors
Configurable library: Declare types as Configurable then specialize them all in one place
conkin library and tests: Tools for functors from Hask^k to Hask
constrained-categories library: Constrained clones of the category-theory type classes, using ConstraintKinds.
constrained-monads library, test and benchmark: Typeclasses and instances for monads with constraints.
constrained-normal library: Normalised Deep Embeddings for Constrained Type-Class Instances
constraint-manip library: Some conviencience type functions for manipulating constraints.
ConstraintKinds library: Repackages standard type classes with the ConstraintKinds extension
constrictor library: strict versions of many things in base
ContArrow library: Control.Arrow.Transformer.Cont
continue library: Monads with suspension and arbitrary-spot reentry
contravariant library: Contravariant functors
contravariant-extras library: Extras for the "contravariant" package
control library: Class of monad transformers which control operations can be lifted thru
control-block library: Higher-order functions with their function arguments at the end, ...
control-bool library: Useful combinators for boolean expressions
control-dotdotdot library: Haskell operator `g ... f = \x1 .. xn -> g (f x1 .. xn)`.
control-dsl library and test: An alternative to monads in do-notation
Control-Engine library: A parallel producer/consumer engine (thread pool)
control-event library and tests: Event scheduling system.
control-invariants library: Invariants and contract monitoring
control-iso library: A typeclass for type isomorphisms
control-monad-exception library: Explicitly typed, checked exceptions with stack traces
control-monad-exception-monadsfd library: Monads-fd instances for the EMT exceptions monad transformer
control-monad-exception-monadstf library: Monads-tf instances for the EMT exceptions monad transformer
control-monad-exception-mtl library: MTL instances for the EMT exceptions monad transformer
control-monad-failure library: A class for monads which can fail with an error. (deprecated)
control-monad-failure-mtl library: A class for monads which can fail with an error for mtl 1 (deprecated)
control-monad-free library: Free monads and monad transformers
control-monad-loop library: Simple monad transformer for imperative-style loops
Control-Monad-MultiPass library and test: A Library for Writing Multi-Pass Algorithms.
control-monad-omega library, test and benchmark: A breadth-first list monad.
control-monad-queue library: Reusable corecursive queues, via continuations.
Control-Monad-ST2 library and test: A variation on the ST monad with two type parameters.
control-timeout library: Timeout handling
contstuff library: Fast, easy to use CPS-based monad transformers
contstuff-monads-tf library: ContStuff instances for monads-tf transformers (deprecated)
contstuff-transformers library: Deprecated interface between contstuff 0.7.0 and the transformers package
conversion library: Universal converter between values of different types
conversion-bytestring library: "Conversion" instances for the "bytestring" library
conversion-case-insensitive library: "Conversion" instances for the "case-insensitive" library
conversion-text library: "Conversion" instances for the "text" library
corecursive-main library, program and test: Write your main like it can call itself back.
Coroutine library: Type-safe coroutines using lightweight session types.
coroutine-object library: Object-oriented programming realization using coroutine
coverage library and test: Exhaustivity Checking Library
cr program: Code review tool
crem library, programs and tests: Compositional representable executable machines
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
custom-prelude library: An enhanced prelude, serving as a foundation for my projects
daemons library, programs and test: Daemons in Haskell made fun and easy
data-effects library and test: A basic framework for effect systems based on effects represented by GADTs.
data-effects-core library and test: A basic framework for effect systems based on effects represented by GADTs.
data-effects-th library and test: Template Haskell utilities for the data-effects library.
data-fresh library: Interface and functor transformers for fresh values
data-lens library: Used to be Haskell 98 Lenses
data-lens-fd library: Lenses
data-lens-ixset library and test: A Lens for IxSet
decepticons library: The categorical dual of transformers.
deep-transformations library and test: Deep natural and unnatural tree transformations, including attribute grammars
DeepArrow library: Arrows for "deep application"
deepcontrol library and tests: ...
deepseq library and test: Deep evaluation of data structures
deepseq-bounded library and test: Bounded deepseq, including support for generic deriving
deepseq-generics library and test: GHC.Generics-based Control.DeepSeq.rnf implementation
deepseq-instances library: Candidate NFData Instances for Types in base
deepseq-magic library: Deep evaluation of data structures without NFData
deepseq-th library and test: Template Haskell based deriver for optimised NFData instances
demarcate library and test: Demarcating transformed monad.
dep-t library and tests: Dependency injection for records-of-functions.
dep-t-advice library, tests and benchmark: Giving good advice to functions in records-of-functions.
dep-t-dynamic library and tests: A dynamic environment for dependency injection.
dep-t-value library and test: Pair resources files with types within your program.
deriving-trans library: Derive instances for monad transformer stacks
despair library: Despair
disposable library: Allows storing different resource-releasing actions together.
distributed-closure library, program and test: Serializable closures for distributed programming.
distributed-fork library and test: Like 'forkIO', but uses remote machines instead of local threads.
distributed-fork-aws-lambda library and test: AWS Lambda backend for distributed-fork.
distributed-process library and benchmarks: Cloud Haskell: Erlang-style concurrency in Haskell
distributed-process-async library and test: Cloud Haskell Async API
distributed-process-azure library and programs: Microsoft Azure backend for Cloud Haskell
distributed-process-client-server library and tests: The Cloud Haskell Application Platform
distributed-process-execution library and tests: Execution Framework for The Cloud Haskell Application Platform
distributed-process-extras library and tests: Cloud Haskell Extras
distributed-process-fsm library and test: The Cloud Haskell implementation of Erlang/OTP gen_statem
distributed-process-lifted library and test: monad-control style typeclass and transformer instances for Process monad.
distributed-process-monad-control library: Orphan instances for MonadBase and MonadBaseControl.
distributed-process-platform library, program and tests: The Cloud Haskell Application Platform
distributed-process-registry library and test: Cloud Haskell Extended Process Registry
distributed-process-simplelocalnet library and test: Simple zero-configuration backend for Cloud Haskell
distributed-process-supervisor library and tests: Supervisors for The Cloud Haskell Application Platform
distributed-process-systest library: Cloud Haskell Test Support
distributed-process-task library and test: Task Framework for The Cloud Haskell Application Platform
distributed-process-tests library and tests: Tests and test support tools for distributed-process.
distributed-process-zookeeper library, program and test: A Zookeeper back-end for Cloud Haskell.
distributed-static library: Compositional, type-safe, polymorphic static values and closures
do-notation-dsl library and test: An alternative to monads
drinkery library: Boozy streaming library
edenmodules library: Semi-explicit parallel programming library
effect-handlers library, test and benchmark: ...
effect-monad library: ...
effect-stack library: Reducing the pain of transformer stacks with duplicated effects
effectful library, test and benchmark: An easy to use, performant extensible effects library.
effectful-core library: An easy to use, performant extensible effects library.
effectful-plugin library and test: A GHC plugin for improving disambiguation of effects.
effectful-th library and test: Template Haskell utilities for the effectful library.
effects library: Computational Effects
effects-parser library: Parser Effect for the Control.Effects Library
effet library and test: An Effect System based on Type Classes
effin library: A Typeable-free implementation of extensible effects
either library and test: Combinators for working with sums
EitherT library: EitherT monad transformer
elevator library: Immediately lifts to a desired level
elision library and program: Arrows with holes.
Empty library: A type class for empty containers
enclosed-exceptions library and test: Catching all exceptions from within an enclosed computation
enum-text-rio library and program: Making fmt available with rio
error-context library and test: Provides API for enriching errors with contexts
error-continuations library: Error Continuations
error-list library: A useful type for collecting error messages.
errorcall-eq-instance library and test: An orphan Eq instance for ErrorCall
errors library: Simplified error-handling
errors-ext library and test: `bracket`-like functions for `ExceptT` over `IO` monad.
Etage library: A general data-flow framework
eternal library: everything breaking the Fairbairn threshold
ether library, test and benchmark: Monad transformers and classes
eveff library: Efficient effect handlers based on evidence translation.
event-driven library: library for event driven programming
event-handlers library: Event handlers
event-monad library: Event-graph simulation monad transformer
event-transformer library, program and test: Initial project template from stack
exception-monads-fd library: Exception monad transformer instances for monads-fd classes.
exception-monads-tf library: Exception monad transformer instances for monads-tf classes.
exception-mtl library: Exception monad transformer instances for mtl classes.
exception-transformers library and test: Type classes and monads for unchecked extensible exceptions.
exceptional library: Essentially the Maybe type with error messages.
exceptions library and test: Extensible optionally-pure exceptions
exceptiot library and test: ExceptT, but uses IO instead of Either
exhaustive library: ...
exitcode library, test and benchmark: Monad transformer for exit codes
explicit-exception library and programs: Exceptions which are explicit in the type signature.
explicit-sharing library: Explicit Sharing of Monadic Effects
extensible-effects library, test and benchmark: An Alternative to Monad Transformers
extensible-effects-concurrent library, programs, test and benchmark: Message passing concurrency as extensible-effect
extensible-exceptions library: Extensible exceptions
failable library: A 'Failable' error monad class to unify failure across monads that can fail
FailT library and tests: A 'FailT' monad transformer that plays well with 'MonadFail'
failure library: A simple type class for success/failure computations. (deprecated)
FailureT library: Failure Monad Transformer
FastPush library: A monad and monad transformer for pushing things onto a stack very fast.
feature-flags library: A simple library for dynamically enabling and disabling functionality.
fmt-for-rio library: Adaptor for getting fmt to work with rio
fold-debounce library and tests: Fold multiple events that happen in a given period of time.
foldl library, test and benchmarks: Composable, streaming, and efficient left folds
foldl-exceptions library and test: Exception handling with FoldM
foldl-incremental library, test and benchmark: incremental folds
foldl-transduce library, tests and benchmark: Transducers for foldl folds.
foldl-transduce-attoparsec library and tests: Attoparsec and foldl-transduce integration.
for-free library: Functor, Monad, MonadPlus, etc for free
forbidden-fruit library and test: A library accelerates imperative style programming.
forest library: Tree and Forest types
ForkableT library: Forkable monad transformers
fractal-layer library and test: Composable resource management and dependency injection
free library: Monads for free
free-algebras library and test: Free algebras
free-applicative-t library and test: Free Applicative Transformer
free-categories library: free categories
free-category library, test and benchmark: efficient data types for free categories and arrows
free-er library and program: An extensible effects library
free-listt library and test: Lawful list and set monad transformers based on free monads
free-operational library and test: Operational Applicative, Alternative, Monad and MonadPlus from free types.
free-vl library, program and test: van Laarhoven encoded Free Monad with Extensible Effects
freer library, program, test and benchmark: Implementation of the Freer Monad
freer-base-classes library and test: class NonDetable.N and Failable.F
freer-effects library, program, tests and benchmark: Implementation of effect system for Haskell.
freer-simple library, program, test and benchmark: A friendly effect system for Haskell.
freer-simple-catching library and test: Checked runtime exceptions with freer-simple
freer-simple-http library and test: Make HTTP requests with freer-simple!
freer-simple-profiling library and test: Automatic profling of freer-simple programs
freer-simple-random library and test: Random number generators using freer-simple
freer-simple-time library and test: freer-simple interface to IO based time functions
fresnel library and test: high-powered optics in a small package
fresnel-fused-effects library: fresnel/fused-effects integration
from-sum library and test: Combinators for working with Maybe and Either
frpnow library: Principled practical FRP
frpnow-gloss library: Program awesome stuff with Gloss and frpnow!
frpnow-gtk library: Program GUIs with GTK and frpnow!
frpnow-vty library and program: Program terminal applications with vty and frpnow!
fsharp library: some F# operators, high priority pipes
full-sessions library: a monad for protocol-typed network programming
function-combine library: Combining functions
functor library: Functors
functor-apply library: This package has been subsumed by semigroupoids
functors library: (.:) and friends, syntax for Functor and Applicative.
funflow library, program and tests: Workflows with arrows
fused-effects library, tests and benchmark: A fast, flexible, fused effect system.
fused-effects-exceptions library and tests: Handle exceptions thrown in IO with fused-effects.
fused-effects-lens library and test: Monadic lens combinators for fused-effects.
fused-effects-mwc-random library, test and benchmark: High-quality random number generation as an effect.
fused-effects-optics library: Bridge between the optics and fused-effects ecosystems.
fused-effects-random library: Random number generation for fused-effects.
fused-effects-resumable library: Resumable exceptions for the fused-effects ecosystem.
fused-effects-squeal library: A fused-effects adapter for squeal-postgresql.
fused-effects-th library and test: Template Haskell helpers for fused-effects.
future-resource library: realtime resource handling with manual concurrency
gang-of-threads library: Non-deterministic parallelism with bags
garlic-bread library and test: A monad transformer for keeping track of where you've come from.
gas library: Limit how many steps a program may take.
general-allocate library: Exception-safe resource management in more monads
general-prelude library: Prelude replacement using generalized type classes where possible
generator library: Python-generators notation for creation of monadic lists
generators library: Actually useful monadic random value generators.
generic-deepseq library: Generic deep evaluation of data structures
Get library and test: get stuff out of stuff
ghc-call-stack-extras library: Extra utilities for HasCallStack
gooey library: Graphical user interfaces that are renderable, ...
GotoT-transformers library: A monad and monadic transformer providing "goto" functionality
grab library, test and benchmarks: Applicative non-linear consumption
graphted library: Graph indexed monads.
groupoids library: This package has been absorbed into semigroupoids 4.0
hasim library: Process-Based Discrete Event Simulation library
hask library: Categories
haskell-cnc library and program: Library for parallel programming in the Intel Concurrent Collections paradigm.
hcron library: A simple job scheduler, which just runs some IO action at a given time.
hdph library and programs: Haskell distributed parallel Haskell
hdph-closure library: Explicit closures in Haskell distributed parallel Haskell
hedis-effectful library: Adaptation of the hedis library for the effectful ecosystem.
heftia library and test: higher-order algebraic effects done right
heftia-effects library, programs, test and benchmark: higher-order algebraic effects done right
hierarchical-env library and test: hierarchical environments for dependency injection
higher-order-freer-monad library and test: This package is used by package yaftee
higher-order-open-union library and test: This package is used by package yaftee
himari library, program and test: A standard library for Haskell as an alternative to rio
hmk library and program: A make alternative based on Plan9's mk.
hoist-error library: Some convenience facilities for hoisting errors into a monad
hpc library: Code Coverage Library for Haskell
hpc-coveralls library, programs and test: Coveralls.io support for Haskell.
hpc-lcov library, program and test: Convert HPC output into LCOV format
hreader library and test: Generalization of MonadReader and ReaderT using hset
hs-di library, program and test: Dependency Injection library for Haskell
hspec-monad-control library: Orphan instances of MonadBase and MonadBaseControl for SpecM
hsPID library and test: PID control loop
hyperfunctions library: Hyperfunctions
if library: (?) and (?>) conditional operator
ifcxt library and test: put if statements within type constraints
IfElse library: Anaphoric and miscellaneous useful control-flow
ImperativeHaskell library: A library for writing Imperative style haskell.
implicit-logging library: A logging framework built around implicit parameters.
imsos-monad library: MonadIMSOS combines State, Error, Reader and Writer.
in-other-words library and test: A higher-order effect system where the sky's the limit
index-core library: Indexed Types
indexed library: Haskell98 indexed functors, monads, comonads
indexed-extras library: Indexed functors, monads and comonads that require extensions to Haskell98
indexed-free library: indexed monads for free
indexed-transformers library: Atkey indexed monad transformers
indextype library and test: A series of type families and constraints for "indexable" types.
InfixApplicative library: liftA2 for infix operators.
inject-function library: Monadic functions with injected parameters.
instance-control library: Controls how the compiler searches for instances using type families.
interchangeable library: A type class for interchangeable data.
interleave library: Combinators for supporting interleaving of different behaviours
interruptible library and test: Monad transformers that can be run and resumed later, conserving their context.
interspersed library: An abstraction over interspersing monadic actions
invariant library and test: Haskell98 invariant functors
invertible library and test: bidirectional arrows, bijective functions, and invariant functors
invertible-hlist library: invertible functions and instances for HList
io-choice library and test: Choice for IO and lifted IO
io-classes library and tests: Type classes for concurrency with STM, ST and timing
io-classes-mtl library: Experimental MTL instances for io-classes
io-reactive library and program: An API for generating TIMBER style reactive objects.
io-region library and test: Exception safe resource management with dynamic regions
iotransaction library: Supports the automatic undoing of IO operations when an exception is thrown.
ixmonad library: Embeds effect systems into Haskell using parameteric effect monads
joint library: Trying to compose non-composable
json-tracer library and tests: A polymorphic, type-safe, json-structured tracing library
JuicyPixels-util library: Convert JuicyPixel images into RGBA format, flip, trim and so on
keiki library and test: Pure core for symbolic-register transducer event sourcing.
keiro library, test and benchmark: Event sourcing framework and workflow engine
keiro-core library: Core contracts for Keiro packages
keiro-pgmq library and test: PostgreSQL job-queue (PGMQ) integration for Keiro
keymapp library and program: gRPC client for the Keymapp API
kindly-functors library and test: A category polymorphic `Functor` typeclass
Kleislify library: Variants of Control.Arrow functions, specialised to kleislis.
Kriens library: Category for Continuation Passing Style
lambda-devs library, program and test: a Paralell-DEVS implementaion based on distributed-process
lawless-concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
lax library: Lax arrows
layers library: Modular type class machinery for monad transformer stacks.
lazy library: Explicit laziness for Haskell
lazy-bracket library and tests: A bracket with lazy resource allocation.
lazy-priority-queue library, program and test: Lazy-Spined Monadic Priority Queues
lazyio library and test: Run IO actions lazily while respecting their order
lazyio-applicative library: LazyIO applicative for asymptotic performance
lens-filesystem library and test: Lens interface for your filesystem; still a bit experimental
lens-misc library: Miscellaneous lens utilities.
lens-tell library: MonadTell-based lens combinators
lens-tutorial library and test: Tutorial for the lens library
lensref library and test: References which can be joined and on which lenses can be applied
lenz-mtl library: mtl operations with Van Laarhoven lenses
level-monad library: Non-Determinism Monad for Level-Wise Search
lifted-base library, test and benchmark: lifted IO operations from the base library
lifted-base-tf library, test and benchmark: lifted IO operations from the base library
linear-free library and test: Linear free monads
List library: List monad transformer and class
list-t library and test: ListT done right
list-transformer library and test: List monad transformer
ListT library and test: List transformer
little-rio library: When you need just the RIO monad
live-stats library: A reusable run-time stats module.
local-search library: Generalised local search within Haskell, for applications in combinatorial optimisation.
log-effect library and program: An extensible log effect using extensible-effects
log-effect-syslog library: Syslog functions for log-effect
LogicGrowsOnTrees library, programs, tests and benchmarks: a parallel implementation of logic programming using distributed tree exploration
LogicGrowsOnTrees-MPI library and programs: an adapter for LogicGrowsOnTrees that uses MPI
LogicGrowsOnTrees-network library, programs and test: an adapter for LogicGrowsOnTrees that uses multiple processes running in a network
LogicGrowsOnTrees-processes library, programs, test and benchmark: an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism
logicst library: Backtracking mutable references in the ST and IO monads
logict library, program and test: A backtracking logic-programming monad.
logict-sequence library, tests and benchmark: A backtracking logic-programming monad with asymptotic improvements to msplit
loop library, test and benchmarks: Fast loops (for when GHC can't optimize forM_)
loop-dsl library and test: monadic loop dsl.
loop-effin library: control-monad-loop port for effin
loop-while library: A monad transformer supporting various styles of while loop
loops library, test and benchmark: Fast imperative-style loops
machinecell library and tests: Arrow based stream transducers
machines library and benchmark: Networked stream transducers
machines-attoparsec library and test: Parse machines streams with attoparsec parsers.
machines-bytestring library: ByteString support for machines
machines-encoding library: Transcode encodings with machines.
managed library: A monad for managed values
map-classes library: A set of classes and instances for working with key/value mappings.
map-reduce-folds library, tests and benchmark: foldl wrappers for map-reduce
MaybeT library: MaybeT monad transformer
MaybeT-monads-tf library: MaybeT monad transformer compatible with monads-tf (deprecated)
MaybeT-transformers library: MaybeT monad transformer using transformers instead of mtl.
mealstrom library and test: Manipulate FSMs and store them in PostgreSQL.
mealy-arrow library, program and test: Monadic Mealy machines with Arrow, ArrowChoice, and ArrowLoop
mech library: mecha are the most complex composite machines known to humanity, lets build them well!
Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
memo-ptr library: Pointer equality memoization
memoization-utils library and test: Utilities for memoizing functions
meta-par library: Provides the monad-par interface, but based on modular scheduler "mix-ins".
metaheuristics library: Generalised local search within Haskell, for applications in combinatorial optimisation.
method library and test: rebindable methods for improving testability
MHask library: The category of monads
micro-recursion-schemes library and test: Simple recursion schemes
midair library: Hot-swappable FRP
minioperational library: fast and simple operational monad
mischief-ecs library, program, test and benchmarks: An opinionated archetype ECS engine built in Haskell.
MissingM library and test: findM and other missing 'M's
mix-arrows library: Mixing effects of one arrow into another one
mmorph library: Monad morphisms
mmtl library: Modular Monad transformer library
mmtl-base library: MonadBase type-class for mmtl
modular-prelude library: A new Prelude featuring first class modules
modular-prelude-classy library: Reifying ClassyPrelude a la ModularPrelude
moffy library and test: Monadic Functional Reactive Programming
moffy-samples library and test: Samples of moffy
moffy-samples-events library and test: Events for sample codes of moffy
moffy-samples-gtk3 program and test: Sample executables of moffy - GTK3 version
moffy-samples-gtk3-run library and test: Package to run moffy samples - GTK3 version
moffy-samples-gtk4 program and test: Sample executables of moffy - GTK4 version
moffy-samples-gtk4-run library and test: Package to run moffy samples - Gtk4 version
monad-abort-fd library: A better error monad transformer
monad-actions library, programs and test: Actions of monads on functors
monad-atom library: Monadically convert object to unique integers and back.
monad-atom-simple library: Monadically map objects to unique ints.
monad-batcher library: An applicative monad that batches commands for later more efficient execution
monad-bool library: This package has been removed.
monad-choice library: Monad, monad transformer, and typeclass representing choices.
monad-chronicle library: These as a transformer, ChronicleT
monad-classes library and test: more flexible mtl
monad-codec library: Monadic conversion between complex data structures and unique integers
monad-connect library: Transformer for TCP connection with TLS and SOCKS support
monad-control library: Lift control operations, like exception catching, through monad transformers
monad-control-aligned library: Lift control operations, like exception catching, through monad transformers
monad-control-identity library: Stronger classes than monad-control
monad-coroutine library: Coroutine monad transformer for suspending and resuming monadic computations
monad-dijkstra library and tests: A monad transformer for weighted graph searches
monad-effect library, test and benchmark: A fast and lightweight effect system.
monad-effect-logging library: A flexible logging system utilizing the `monad-effect` effect system.
monad-exception library: Exstensible monadic exceptions
monad-extras library: Extra utility functions for working with monads
monad-finally library: Guard monadic computations with cleanup actions
monad-fork library: Type class for monads which support a fork operation.
monad-hash library and test: Monad transformer for incremental hashing
monad-ideals library and test: Ideal Monads and coproduct of them
monad-introspect library: A reader monad that gives the environment access to the entire transformer stack
monad-io-adapter library and test: Adapters between MonadIO and MonadBase IO.
monad-journal library: Pure logger typeclass and monad transformer
monad-levels library: Specific levels of monad transformers
monad-lgbt library and test: Monad transformers for combining local and global state.
monad-loops library and test: Monadic loops
monad-loops-stm library: Monadic loops for STM
monad-markov library: Markov process monad
monad-memo library, test and benchmark: Memoization monad transformer
monad-mersenne-random library: An efficient random generator monad, based on the Mersenne Twister
monad-open library: Open recursion for when you need it
monad-ox library: Monad for observation extraction
monad-par library and test: A library for parallel programming based on a monad
monad-par-extras library: Combinators and extra features for Par monads
monad-parallel library: Parallel execution of monadic computations
monad-parallel-progressbar library: Parallel execution of monadic computations with a progress bar
monad-param library: Parameterized monads
monad-peel library and test: Lift control operations like exception catching through monad transformers
monad-products library: Monad products
monad-rail library and test: Railway-oriented error handling for Haskell
monad-ran library: Fast monads and monad transformers
monad-resumption library: Resumption and reactive resumption monads for Haskell.
monad-skeleton library: Monads of program skeleta
monad-st library: Provides a MonadST class
monad-state library: Utility library for monads, particularly those involving state.
monad-ste library and test: ST monad with efficient explicit errors
monad-stm library: MonadSTM class analogous to MonadIO
monad-supply library: Stateful supply monad
monad-task library: A monad transformer that turns event processing into co-routine programming.
monad-time library and test: Type class for monads which carry the notion of the current time.
monad-time-effectful library: Adaptation of the monad-time library for the effectful ecosystem.
monad-timing library and tests: Monad transformer for recording timing events
monad-tree library: Tree data structure for nondeterministic computations.
monad-tx library: A transactional state monad.
monad-unlift library: Typeclasses for representing monad transformer unlifting
monad-unlift-ref library: Typeclasses for representing monad transformer unlifting
monad-validate library and test: A monad transformer for data validation.
monad-wrap library: Wrap functions such as catch around different monads
monadbi library: Extract underlying monads from monad transformers
MonadCatchIO-mtl library: Monad-transformer version of the Control.Exception module
MonadCatchIO-mtl-foreign library: Polymorphic combinators for working with foreign functions
MonadCatchIO-transformers library: Monad-transformer compatible version of the Control.Exception module
MonadCatchIO-transformers-foreign library: Polymorphic combinators for working with foreign functions
monadcryptorandom library: A monad for using CryptoRandomGen
monadfibre library: Monadic functions which provide Choice and Parallelism.
monadic-recursion-schemes library and test: Recursion Schemes for Monadic version.
monadiccp library and test: Constraint Programming
monadiccp-gecode library and test: Constraint Programming
monadio-unwrappable library: Reversibly allow monad transformer stacks to run in IO
monadLib-compose library: Arrow-like monad composition for monadLib.
monadlist library: Monadic versions of list functions
monadloc library: A class for monads which can keep a monadic call trace
monadloc-pp program: A preprocessor for generating monadic call traces
monadplus library: Haskell98 partial maps and filters over MonadPlus.
MonadPrompt library: MonadPrompt, implementation & examples
MonadRandom library: Random-number generation monad.
MonadRandomLazy library: Lazy monad for psuedo random-number generation.
monads-fd library: Monad classes, using functional dependencies
monads-tf library: Monad classes, using type families
MonadStack library: Generalizing lift to monad stacks
Monatron library: Monad transformer library with uniform liftings
Monatron-IO library: MonadIO instances for the Monatron transformers.
monoidal-functors library and program: Monoidal Functors Library
moo-nad library and test: Invocation helpers for the ReaderT-record-of-functions style.
more-extensible-effects library: Initial project template from stack
morphisms library: It's all about functions
morphisms-functors library: Functors, theirs compositions and transformations
morphisms-functors-inventory library: Inventory is state and store
morphisms-objects library: Algebraic structures
motor library, program and test: Type-safe effectful state machines in Haskell
motor-diagrams library and test: Generate state diagrams from Motor FSM typeclasses
motor-reflection library and test: Reflect on Motor FSM typeclasses to obtain runtime representations
mpeff library: Efficient effect handlers based on evidence-passing semantics
mtl library: Monad classes for transformers, using functional dependencies
mtl-evil-instances library: Instances for the mtl classes for all monad transformers.
mtl-extras library: Higher order versions of MTL classes
mtl-mhs library: Monad classes for transformers, using functional dependencies
mtl-misc-yj library and test: tribial tools about mtl
mtl-tf library: Monad Transformer Library with Type Families
mtl-unleashed library and test: MTL classes without the functional dependency
mtl-uplift library and test: Lift substacks of monad transformer stacks
mtlx library: Monad transformer library with type indexes, providing 'free' copies.
mtsl library: Reified monad transformer stacks
multipass library: Folding data with multiple named passes
multistate library, program and test: like mtl's ReaderT / WriterT / StateT, but more than one contained value/type.
multiwalk library, test and benchmark: Traverse data types via generics, acting on multiple types simultaneously.
mvc library: Model-view-controller
mvc-updates library: Concurrent and combinable updates
mzv library: Implementation of the "Monads, Zippers and Views" (Schrijvers and Oliveira, ICFP'11)
named library and test: Named parameters (keyword arguments) for Haskell
natural-transformation library and test: A natural transformation package.
needle library: ASCII-fied arrow notation
newtype library: A typeclass and set of functions for working with newtypes.
newtype-deriving library: Instance derivers for newtype wrappers
newtype-generics library, test and benchmark: A typeclass and set of functions for working with newtypes
newtype-th library: A template haskell deriver to create Control.Newtype instances.
newtyper library: Extra functions for the Control.Newtype typeclass
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
nqe library and test: Concurrency library in the style of Erlang/OTP
Object library: Object oriented programming for haskell using multiparameter typeclasses.
objective library: Composable objects
observable library: Continuation patterns
op library and test: Common operators encouraging large-scale easy reading
open-signals library and test: A mechanism similar to checked exceptions that integrates with MTL and transformer stacks
operational library and program: Implementation of difficult monads made easy with operational semantics.
operational-class library: MonadProgram typeclass for the operational package
overload library: Finite overloading
pandora library: A box of patterns and paradigms
pandora-io library: ...
parallel library: Parallel programming library
parallel-tree-search library: Parallel Tree Search
parameterized library and test: Parameterized/indexed monoids and monads using only a single parameter type variable.
partial library: A nullary type class for partial functions
partial-isomorphisms library: Partial isomorphisms.
partial-lens library: Haskell 98 Partial Lenses
perm library and test: permutation Applicative and Monad with many mtl instances
PermuteEffects library: Permutations of effectful computations
phantom-state library and benchmark: Phantom State Transformer. Like State Monad, but without values.
pid program: a simple PID controller
pipe-enumerator library: A bidirectional bridge between pipes and iteratees
piped library, program and test: Conduit with a smaller core
pipeline library: Continuation patterns
pipes library, test and benchmarks: Compositional pipelines
pipes-async library and test: A higher-level interface to using concurrency with pipes
pipes-attoparsec-streaming library and program: Streaming parsing in the pipes-core framework with Attoparsec.
pipes-break library and test: Pipes to group by any delimiter (such as lines with carriage returns)
pipes-bytestring library: ByteString support for pipes
pipes-category library and test: Allows instances for Category, Arrow and ArrowChoice for Pipes.
pipes-cellular library: Pipes-based combinators for cellular data processing
pipes-cellular-csv library: Efficient pipes-based cellular CSV codec
pipes-concurrency library and test: Concurrency for the pipes ecosystem
pipes-conduit library: Conduit adapters
pipes-core library: Compositional pipelines
pipes-errors library: Integration between pipes and errors
pipes-extra library, programs, test and benchmarks: Various basic utilities for Pipes.
pipes-extras library and test: Extra utilities for pipes
pipes-fluid library and test: Reactively combines Producers so that a value is yielded as soon as possible.
pipes-group library and test: Group streams into substreams
pipes-io library and test: Stateful IO streams based on pipes
pipes-lines library and test: Pipes for grouping by lines with carriage returns.
pipes-misc library and test: Miscellaneous utilities for pipes, required by glazier-tutorial
pipes-parse library: Parsing infrastructure for the pipes ecosystem
pipes-random library: Producers for handling randomness.
pipes-rt library and program: A few pipes to control the timing of yields
pipes-safe library: Safety for the pipes ecosystem
pipes-transduce library and tests: Interfacing pipes with foldl folds.
pipes-vector library: Various proxies for streaming data into vectors
pipes-zeromq4 library and programs: Pipes integration for ZeroMQ messaging
placeholder library and test: placeholder definitions for TODO and unimplemented
plan-applicative library and tests: Applicative/Arrow for resource estimation and progress tracking.
poly-cont library: Poly-kinded continuations
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
porpoise library and program: A minimalist HTTP server framework written on top of wai
ports library: The Haskell Ports Library
prelude-plus program: Prelude for rest of us
ProbabilityMonads library: Probability distribution monads.
product-profunctors library, test and benchmark: product-profunctors
profunctor-extras library: This package has been absorbed into profunctors 4.0
profunctor-monad library and test: Monadic bidirectional programming
profunctors library: Profunctors
program library: Programs with Environments and Managed Resources
progress-reporting library: Functionality for reporting function progress.
prologue library: Better, more general Prelude exporting common utilities.
prompt library: Monad (and transformer) for deferred-effect pure prompt-response queries
prospect library and test: Explore continuations with trepidation
protocol library: Model distributed system as type-level multi-party protocol
quantum-arrow library: An embedding of quantum computation as a Haskell arrow
quiver library: Quiver finite stream processing library
quiver-binary library and test: Binary serialisation support for Quivers
quiver-bytestring library: Quiver combinators for bytestring streaming
quiver-cell library: Quiver combinators for cellular data processing
quiver-csv library: Quiver combinators for cellular CSV data processing
quiver-enumerator library: Bridge between Quiver and Iteratee paradigms
quiver-groups library and test: Group and chunk values within a Quiver
quiver-http library: Adapter to stream over HTTP(s) with quiver
quiver-instances library: Extra instances for Quiver
quiver-interleave library and test: Interleave values from multiple Quivers
quiver-sort library and test: Sort the values in a quiver
railroad library and test: A railway oriented mini-DSL for unified error handling.
random-eff library: A simple random generator library for extensible-effects
random-effin library: A simple random generator library for effin
rank2classes library and test: standard type constructor class hierarchy, only with methods of rank 2 types
rate-limit library: A basic library for rate-limiting IO actions.
reactive-haskell library: minimal fork of io-reactive
reactive-io library: IO-oriented FRP library
reader-soup library: Vinyl-based reader-like monad composition
reasonable-lens library: Lens implementation. It is more small but adequately.
reasonable-operational library: Just size Operational Monad implementation.
record library: Anonymous records
recursion : A recursion schemes library for Haskell.
recursion-schemes library and test: Representing common recursion patterns as higher-order functions
recursion-schemes-ext library, test and benchmark: Amateur addenda to recursion-schemes
ref-fd library: A type class for monads with references using functional dependencies.
ref-mtl library: A type class for monads with references compatible with the mtl2 library.
ref-tf library: A type class for monads with references using type families.
reference library: A class for references in Haskell
references library and test: Selectors for reading and updating data.
regions library: Provides the region monad for safely opening and working with scarce resources.
regions-monadsfd library: Monads-fd instances for the RegionT monad transformer
regions-monadstf library: Monads-tf instances for the RegionT monad transformer
regions-mtl library: mtl instances for the RegionT monad transformer
registry library and test: data structure for assembling components
registry-hedgehog library and test: utilities to work with Hedgehog generators and `registry`
rematch library and test: A simple api for matchers
rematch-text library and test: `rematch` matchers for Data.Text
remote-monad library and tests: An parametrizable Remote Monad, and parametrizable Applicative Functor
ReplicateEffects library: Composable replication schemes of applicative functors
representable-profunctors library: This package has been absorbed into profunctor-extras.
request-monad library: A transformer for generic requests
resource-effect library and test: A port of the package 'resourcet' for extensible effects.
resource-effectful library and test: A region-based resource effect for the effectful ecosystem.
resource-pool-monad library: A monadic interface for resource-pool
resource-registry library and test: Track allocated resources
resource-simple library: Allocate resources which are guaranteed to be released.
resourcet-effectful library: Adaptation of the resourcet library for the effectful ecosystem.
restartable library: Minimal live coding library for model-view-event-update applications.
resumable-exceptions library: A monad transformer for resumable exceptions
retry library and test: Retry combinators for monadic actions that may fail
retry-effectful library and test: Adaptation of the retry library for the effectful ecosystem.
retry-io-classes library and test: Retry combinators for monadic actions that may fail (io-classes port)
rev-state library and test: Reverse State monad transformer
rex library: A quasi-quoter for typeful results of regex captures.
RichConditional library: Tiny library to replace classic if/else
rio library and test: A standard library for Haskell
rio-app library and program: Generic App type for rio.
rio-orphans library and test: Orphan instances for the RIO type in the rio package
rmonad library and test: Restricted monad library
RoyalMonad library: All hail the Royal Monad!
rt library: A more fine-grained version of state threads (ST)
runGhcBWrap-core library: Build haskell executables
safe-buffer-monad library and test: A monadic buffer resilient to exceptions
safe-exceptions library and test: Safe, consistent, and easy exception handling
safe-exceptions-checked library and test: Safe, checked exceptions
safe-wild-cards library and test: Use RecordWildCards safely
scc library, program and test: Streaming component combinators
schedule library and tests: Pure deterministic scheduled computations
schonfinkeling library: Transformation of n-ary functions to unary functions
SciFlow library: Scientific workflow management system
SciFlow-drmaa library: Scientific workflow management system
scoped-codensity library and test: CPS resource allocation but as a Monad and completely safe
selective library and test: Selective applicative functors
semi-iso library: Weakened partial isomorphisms, reversible computations.
semigroupoid-extras library: Semigroupoids that depend on PolyKinds
semigroupoids library: Semigroupoids: Category sans id
sessions library: Session Types for Haskell
sessiontypes library, program and tests: Session types library
sessiontypes-distributed library and tests: Session types distributed
shade library: A control structure used to combine heterogenous types with delayed effects.
shared-fields library and test: a tiny library for using shared lens fields
shortcircuit library: Short-circuit values and expressions.
simple-effects library, test and benchmark: A simple effect system that integrates with MTL
simple-observer library: The Observer pattern
simple-sessions library: A simple implementation of session types
sink library: An alternative to lazy I/O that doesn't conflate execution with evaluation
skulk library and test: Eclectic collection of utility functions
sousit library and test: Source/Sink/Transform: An alternative to lazy IO and iteratees.
spartacon program: A unix-style (read from stdin, write to stdout) global hotkey daemon
spawn library: Tiny library for concurrent computations
speculation-transformers library: Merged into 'speculation'. Use that instead.
spire library and tests: Composable service and middleware abstractions for Haskell
stack-hpc-coveralls library, program and test: Initial project template from stack
stamina library, program and test: Retries for humans
state-bag library and test: Monad transformers for holding bags of state.
state-plus library and test: MonadPlus for StateT
statestack library: Simple State-like monad transformer with saveable and restorable state
stateWriter library, tests and benchmark: A faster variant of the RWS monad transformers.
static library and tests: Type-safe and interoperable static values and closures
static-closure library: Serialisable static pointers to functions
stm-actor library and test: A simplistic actor model based on STM
stm-incremental library and test: A library for constructing incremental computations
stm-supply library and test: STM wrapper around Control.Concurrent.Supply.
stopwatch library and test: A simple stopwatch utility
stream-monad library and program: Simple, Fair and Terminating Backtracking Monad
streaming-eversion library and tests: Translate pull-based stream folds into push-based iteratees.
streamproc library: Stream Processer Arrow
streams library: Various Haskell 2010 stream comonads
streamt library and tests: Simple, Fair and Terminating Backtracking Monad Transformer
strict-concurrency library: Strict concurrency abstractions
strict-identity library: Strict Identity Monad, handy for writing fast code!
strict-writer library and test: A stricter writer, which uses StateT in order to avoid space leaks.
strictly library: Combinators for strictifying functions
stt library and test: A monad transformer version of the ST monad
sub-state library and test: Get the total, put a single element
subhask library, tests and benchmark: Type safe interface for programming in subcategories of Hask
successors library: An applicative functor to manage successors
supervisor library: Control an internal monad execution for trace generation, backtrakcking, ...
sweet-egison library, test and benchmarks: Shallow embedding implementation of non-linear pattern matching
synchronous-channels library: Synchronous communication channels
tagged-exception-core library: Reflect exceptions using phantom types.
tagged-identity library: Trivial monad transformer that allows identical monad stacks to have different types
tagshare library: TagShare - explicit sharing with tags
Tainted library: Tainted type, and associated operations
takahashi library: create slide for presentation.
tardis library and test: Bidirectional state monad transformer
tehepero library: Prettier error
telega library: Telegram Bot API binding
tell library: The MonadTell class and related monad transformers.
THEff library: TH implementation of effects.
threads-pool library: A library to operate with pool of haskell's IO threads
time-machine library and test: A library to mock the current time.
time-out library and test: Timers, timeouts, alarms, monadic wrappers
time-warp library, programs and test: Distributed systems execution emulation
timeout library and test: Generalized sleep and timeout functions
timeout-control library: Updatable timeouts as a Monad transformer
timers-tick library and test: tick based timers
to library and benchmark: Simple, safe, boring type conversions
tonalude library and tests: A standard library for Tonatona framework.
total library: Exhaustive pattern matching using lenses, traversals, and prisms
TotalMap library and test: A total map datatype
tower-hs library and test: Composable service middleware for Haskell, inspired by Rust's Tower
trace library: A monad transformer for tracing provenience of errors
transactional-events library: Transactional events, based on Concurrent ML semantics
transformers library: Concrete functor and monad transformers
transformers-abort library: Error and short-circuit monad transformers
transformers-base library: Lift computations from the bottom of a transformer stack
transformers-bifunctors library: Bifunctors over monad transformers.
transformers-compose library: Arrow-like / category-like composition for transformers.
transformers-continue library: Control flow data type and monad transformer.
transformers-convert library and test: Sensible conversions between some of the monad transformers
transformers-eff library and benchmark: An approach to managing composable effects, ala mtl/transformers/extensible-effects/Eff
transformers-free library: Free monad transformers
transformers-lift library: Ad-hoc type classes for lifting
transformers-runnable library: A unified interface for the run operation of monad transformers
transient library and test: composing programs with multithreading, events and distributed computing
transient-universe library, programs and test: fully composable remote execution for the creation of distributed systems
tree-monad library: Non-Determinism Monad for Tree Search
TreeT library: Transformer for Data.Tree
trivia library: The trivial monad and comonad
tubes library: Write stream processing computations with side effects in a series of tubes.
tuple-lenses library: Stock FieldN combos and generators
tweak library: A library for incremental computing
type-flip library and test
type-operators library: Various type-level operators
TypeCompose library: Type composition classes & instances
typed-fsm library: A framework for strongly typed FSM
typed-protocols library and test: A framework for strongly typed protocols
typed-session library and test: typed session framework
uberlast library: Generate overloaded lenses from plain data declaration
unexceptionalio library and test: IO without any non-error, synchronous exceptions
unexceptionalio-trans library: A wrapper around UnexceptionalIO using monad transformers
unfree library and test: Simplistic free monad with deriving through UndecidableInstances
unlift library: Typeclass for monads that can be unlifted to arbitrary base monads
unliftio library, test and benchmark: The MonadUnliftIO typeclass for unlifting monads to IO (batteries included)
unliftio-core library: The MonadUnliftIO typeclass for unlifting monads to IO
unliftio-pool library: Data.Pool generalized to MonadUnliftIO.
unordered-containers-rematch library and test: Rematch support for unordered containers
unpack-funcs library: Monad transformers that mirror worker-wrapper transformations.
unsafe library: Unified interface to unsafe functions
unsequential library and test: An extension removing the sequentiality from monads
util-logict library, test and benchmark: See README for more info
uu-interleaved library: An interleaving combinator for use with applicative style implementations.
validationt library and test: Straightforward validation monad
var-monad library: The VarMonad typeclass, generalizing types of references.
variables library and test: Monads with variables, without deep magic
variadic library, test and benchmark: Abstractions for working with variadic functions
varying library, program, tests and benchmark: FRP through value streams and monadic splines.
vector-strategies library: A parallel evaluation strategy for boxed vectors
views library: Views allow you to run a State monad on part of a state.
vinyl-utils library: Utilities for vinyl
wai-control library: Run wai Applications in IO based monads
watchdog library: Simple control structure to re-try an action with exponential backoff
weave library: Compositional breadth-first walks
weave-core library: Core definitions for weave
weighted library: Writer monad which uses semiring constraint
weighted-search library: A weighted nondeterministic search monad
wires library and programs: Functional reactive programming library
with library: Simple open product type
withdependencies library and test: Run computations that depend on one or more elements in a stream.
wl-pprint-extras library and test: A free monad based on the Wadler/Leijen pretty printer
wl-pprint-terminfo library: A color pretty printer with terminfo support
Workflow library: Workflow patterns over a monad for thread state logging & recovery
writer-cps-exceptions library: Control.Monad.Catch instances for the stricter CPS WriterT and RWST
writer-cps-full library: WriteT and RWST monad transformers (Reexport with all dependencies)
writer-cps-lens library: Lens instances for the stricter CPS WriterT and RWST
writer-cps-monads-tf library: MonadWriter orphan instances for writer-cps-transformers
writer-cps-morph library: MFunctor instance for CPS style WriterT and RWST
writer-cps-mtl library: MonadWriter orphan instances for writer-cps-transformers
writer-cps-transformers library: WriteT and RWST monad transformers
xml-html-conduit-lens library and tests: Optics for xml-conduit and html-conduit
yaftee library and test: Yet Another heFTy-inspired Extensible Effect
yaftee-conduit library and test: Conduit implemented on Yaftee
yaftee-conduit-bytestring library and test: Yaftee Conduit tools for ByteString
yaftee-conduit-bytestring-ft library and test: Finger tree-based byte string tools for Yaftee Conduit
yaftee-conduit-mono-traversable library and test: Mono traversable tools for Yaftee Conduit
zio library and test: App-centric Monad-transformer based on Scala ZIO (UIO + ReaderT + ExceptT).
zoom-refs library: Zoom (~ Functor) and pairing (~ Applicative) for mutable references.

Control Language

in-other-words-plugin library and test: Disambiguate obvious uses of effects when using in-other-words.

Control.Monad

script-monad library, program and test: Stack of error, reader, writer, state, and prompt monad transformers

Control.Parallel.Eden

edenskel library: Semi-explicit parallel programming skeleton library

ControlTower

stratosphere-controltower library: Stratosphere integration for AWS ControlTower.

Convenience

schedule-planner program: Find the ideal lesson layout

Conversion

coco library: cozy conversions
conversion library: Universal converter between values of different types
conversion-bytestring library: "Conversion" instances for the "bytestring" library
conversion-case-insensitive library: "Conversion" instances for the "case-insensitive" library
conversion-text library: "Conversion" instances for the "text" library
hsluv-haskell library and test: HSLuv conversion utility.
isomorphism-class library and test: Isomorphism typeclass as a lawful solution to the conversion problem
lawful-conversions library and test: Lawful typeclasses for bidirectional conversion between types
string-fromto library: Conversions between common string types, as well as Base16/Base32/Base64.

Conversions

text-builder-lawful-conversions library and test: Orphan instances of "lawful-conversions" for "text-builder"

CouchDB

ez-couch library: A high level static library for working with CouchDB

Covenant

covenant library and tests: Standalone IR for Cardano scripts.

CPP

preprocessor library and test: Remove cpp annotations to get the source ready for static analysis.

CRDT

crdt-event-fold library, test and benchmarks: Garbage collected event folding CRDT.

Criu

criu-rpc library: CRIU RPC client.
criu-rpc-types library: Criu RPC protocol buffer types.

Cron

saturn library and test: Handle POSIX cron schedules.

Crosswords

hpuz library: Haskell bindings for libpuz

Crypto

BitStringRandomMonad library and test
cardano-crypto library, program, tests and benchmark: Cryptography primitives for cardano
cprng-aes-effect library: Run random effect using cprng-aes, a crypto pseudo number generator.
cropty library and test: Encryption and decryption
crypto-random-effect library: A random effect using crypto-random
crypto-rng library: Cryptographic random number generator.
crypto-rng-effectful library and test: Adaptation of the crypto-rng library for the effectful ecosystem.
cryptoconditions library and test: Interledger Crypto-Conditions
ecdsa library: Basic ECDSA signing implementation
keccak library, program, test and benchmark: cryptographic functions based on the sponge construction
libsecp256k1 library and test: Bindings for secp256k1
lol library and test: A library for lattice cryptography.
lol-apps library: ...
lol-benches library: A library for benchmarking <https://hackage.haskell.org/package/lol lol>.
lol-cpp library, test and benchmarks: A fast C++ backend for <https://hackage.haskell.org/package/lol lol>.
lol-repa library, test and benchmark: A repa backend for <https://hackage.haskell.org/package/lol lol>.
lol-tests library and test: A library for testing <https://hackage.haskell.org/package/lol Λ ∘ λ>.
magic-wormhole library, program and test: Interact with Magic Wormhole
mcl library, test and benchmark: Bindings to mcl, a generic and fast pairing-based cryptography library
openssl-createkey library: Create OpenSSL keypairs.
pkcs7 library and test: PKCS #7 padding in Haskell
pvss program and test: Public Verifiable Secret Sharing
rfc1751 library and test: RFC-1751 library for Haskell
ripple library: Ripple payment system library
rlwe-challenges library and program: Ring-LWE/LWR challenges using Lol.
secp256k1 library and test: Bindings for secp256k1 library from Bitcoin Core
secp256k1-haskell library and test: Bindings for secp256k1
secp256k1-legacy library and test: fork of secp256k1
spake2 library, program and test: Implementation of the SPAKE2 Password-Authenticated Key Exchange algorithm
spritz library: An implementation of the Spritz RC4-like stream cipher in Haskell
trust-chain library and test: An implementation of a trust chain
web3-tools library and test: Tools for working with Crypto/Web3

Cryptocurrency

burnt-explorer program: List OP_RETURN cryptocurrency transaction outputs.

Cryptography

adler32 library and test: An implementation of Adler-32, supporting rolling checksum operation
AES library: Fast AES encryption/decryption for bytestrings
aes-gcm library and test: AES Galois/Counter Mode (GCM) AEAD Cipher
afis library and test: Anti-forensic Information Splitter
age library and test: Actually Good Encryption
aos-signature library and test: An implementation of the AOS signatures
apache-md5 library, test and benchmark: Apache specific MD5 digest algorighm.
argon2 library and test: Memory-hard password hash and proof-of-work function
arithmetic-circuits library, tests and benchmark: Arithmetic circuits for zkSNARKs
aws-sns-verify library and test: Parse and verify AWS SNS messages
bcrypt library: Haskell bindings to the bcrypt password hash
bip32 library and test: BIP-0032: Hierarchical Deterministic Wallets for Bitcoin and other cryptocurrencies
bitcoin-address library and test: Bitcoin address generation and rendering. Parsing coming soon.
bitcoin-hash library and test: Bitcoin hash primitives
bitcoin-hs library and test: Partial implementation of the Bitcoin protocol (as of 2013)
bitcoin-keys library and test: Bitcoin keys
blake2 library, tests and benchmark: A library providing BLAKE2
blake3 library and test: BLAKE3 hashing algorithm
blakesum library: The BLAKE SHA-3 candidate hashes, in Haskell
blakesum-demo program: The BLAKE SHA-3 candidate hashes, in Haskell
botan-bindings library: Raw Botan bindings
botan-low library and test: Low-level Botan bindings
bulletproofs library, program, test and benchmark: Bulletproofs are short zero-knowledge proofs without a trusted setup.
cacophony library, program, tests and benchmark: A library implementing the Noise protocol.
cao program: CAO Compiler
cipher-aes library, test and benchmark: Fast AES cipher implementation with advanced mode of operations
cipher-aes128 library, program and benchmark: AES and common modes using AES-NI when available.
cipher-blowfish library, test and benchmark: Blowfish cipher
cipher-camellia library, test and benchmark: Camellia block cipher primitives
cipher-des library, test and benchmark: DES and 3DES primitives
cipher-rc4 library, test and benchmark: Fast RC4 cipher implementation
cipher-rc5 library: Pure RC5 implementation
commsec library: Provide communications security using symmetric ephemeral keys
cprng-aes library and benchmark: Crypto Pseudo Random Number Generator using AES in counter mode.
cpsa programs: Symbolic cryptographic protocol analyzer
crc16 library: Calculate the crc16-ccitt.
cropty library and test: Encryption and decryption
Crypto library and tests: Common Cryptographic Algorithms in Pure Haskell
crypto-api library: A generic interface for cryptographic operations
crypto-api-tests library: A test framework and KATs for cryptographic operations.
crypto-cipher-benchmarks library: Generic cryptography cipher benchmarks
crypto-cipher-tests library and test: Generic cryptography cipher tests
crypto-cipher-types library: Generic cryptography cipher types
crypto-classical library and test: An educational tool for studying classical cryptography schemes.
crypto-conduit library and test: Conduit interface for cryptographic operations (from crypto-api).
crypto-enigma library, program and tests: An Enigma machine simulator with display.
crypto-keys-ssh library: Like crypto-pubkey-openssh but not dependent on any specific crypto library
crypto-multihash library, program and test: Multihash library on top of cryptonite crypto library
crypto-numbers library, test and benchmark: Cryptographic numbers: functions and algorithms
crypto-pubkey library, test and benchmark: Public Key cryptography
crypto-pubkey-openssh library and test: OpenSSH keys decoder/encoder
crypto-pubkey-types library: Generic cryptography Public keys algorithm types
crypto-random library: Simple cryptographic random related types
crypto-random-api library: Simple random generators API for cryptography related code
crypto-simple library and test: A simple high level encryption interface based on cryptonite
crypto-sodium library and test: Easy-and-safe-to-use high-level cryptography based on Sodium
crypto-srp library and tests: SRP authentication primitives
crypto-token library and test: crypto tokens
crypto-totp library: Provides generation and verification services for time-based one-time keys.
cryptocipher library: Symmetrical block and stream ciphers.
cryptohash library, test and benchmarks: collection of crypto hashes, fast, pure and practical
cryptohash-conduit library: cryptohash conduit
cryptohash-cryptoapi library: Crypto-api interfaces for cryptohash
cryptohash-md5 library, test and benchmark: Fast, pure and practical MD5 implementation
cryptohash-sha1 library, test and benchmark: Fast, pure and practical SHA-1 implementation
cryptohash-sha256 library, program, test and benchmark: Fast, pure and practical SHA-256 implementation
cryptohash-sha512 library, tests and benchmark: Fast, pure and practical SHA-512 implementation
cryptoids library: Reversable and secure encoding of object ids as a bytestring
crypton library, test and benchmark: Cryptography Primitives sink
crypton-box library and test: NaCl crypto/secret box implementations based on crypton primitives.
crypton-conduit library and test: crypton conduit
crypton-pubkey-types library: Public keys algorithm types
cryptonite test and benchmark: Cryptography Primitives sink
cryptonite-cd test and benchmark: Cryptography Primitives sink
cryptonite-conduit library and test: cryptonite conduit
cryptonite-openssl test: Crypto stuff using OpenSSL cryptographic library
cryptostore library and test: Serialization of cryptographic data types
data-dispersal library and test: Space-efficient and privacy-preserving data dispersal algorithms.
dice-entropy-conduit library and test: Cryptographically secure n-sided dice via rejection sampling
digest library: CRC32 and Adler32 hashes for bytestrings
digest-pure library and test: Pure hash functions for bytestrings
digest-sig library: Signature for digest
DRBG library and test: Deterministic random bit generator (aka RNG, PRNG) based HMACs, Hashes, and Ciphers.
drunken-bishop library and program: An implementation of the Drunken Bishop visual fingerprinting algorithm
DSA library and test: Implementation of DSA, based on the description of FIPS 186-4
Dust-crypto library and test: Cryptographic operations
eccrypto library, test and benchmark: Elliptic Curve Cryptography for Haskell
eccrypto-ed25519-bindings library: provides "ed25519" API using "eccrypto"
ed25519 tests and benchmark: Ed25519 cryptographic signatures
ed25519-donna library: Haskell bindings to ed25519-donna (Elliptical Curve Signature Scheme)
elliptic-curve library, test and benchmark: Elliptic curve library
elocrypt library, program and tests: Generate easy-to-remember, hard-to-guess passwords
encryptable library and test: Typed encryption with persistent support
entropy library: A platform independent entropy source
fastpbkdf2 library, test and benchmark: Haskell bindings to the fastpbkdf2 C library
filepath-crypto library: Reversable and secure encoding of object ids as filepaths
fpe library and test: Format-preserving encryption.
g3p-hash library and test: Global Password Prehash Protocol
galois-fft library, test and benchmark: FFTs over finite fields
galois-field library, test and benchmark: Galois field library
gibberish library, programs, tests and benchmark: Generate easy-to-remember, hard-to-guess passwords
GOST34112012-Hash library and test: Bindings to the GOST R 34.11-2012 hashing implementation
h-gpgme library and test: High Level Binding for GnuPG Made Easy (gpgme)
hash-string library and test: binary strings supporting constant-time base16 and comparisons
hashing library, program and test: A pure haskell library implements several hash algorithms.
haskdeep program: Computes and audits file hashes.
haskell-opentimestamps library and test: Haskell implementation of OpenTimestamps
haskell-opentimestamps-client library and program: Haskell implementation of a basic OpenTimestamps client
hb3sum program: A command line tool to compute BLAKE3 hashes.
hecc library: Elliptic Curve Cryptography for Haskell
hF2 library: F(2^e) math for cryptography
hkdf library and test: Implementation of HKDF (RFC 5869)
hMPC library, program and test: Multiparty Computation in Haskell
hopenssl library and tests: FFI Bindings to OpenSSL's EVP Digest Interface
hpke library and test: Hybrid Public Key Encryption
hsblst library and test: Haskell bindings to BLST
HsOpenSSL library and tests: Partial OpenSSL binding for Haskell
hspkcs11 library and test: Wrapper for PKCS #11 interface
http-client-rustls library and test: http-client TLS backend using Rustls
intel-aes library: Hardware accelerated AES encryption and Random Number Generation.
jose library, program and tests: JSON Object Signing and Encryption (JOSE) and JSON Web Token (JWT) library
jose-jwt tests and benchmark: JSON Object Signing and Encryption Library
jumpthefive library and program: an elementary symmetric chiffre for pragmatically protecting one's effects
keelung library: DSL for creating zero-knowledge proofs
keystore library and programs: Managing stores of secret things
Lazy-Pbkdf2 library, test and benchmark: Lazy PBKDF2 generator.
lesspass program: The Stateless Password Manager
libsodium library and test: Low-level bindings to the libsodium C library
libsodium-bindings library: FFI bindings to libsodium
longshot library, program and test: Fast Brute-force search using parallelism
memzero library and tests: Securely erase memory contents by writing zeros to it.
mldsa library, tests and benchmark: Module-Lattice-based Digital Signature Algorithm
mlkem library, tests and benchmark: Module-Lattice-based Key-Encapsulation Mechanism
monad-hash library and test: Monad transformer for incremental hashing
monadcryptorandom library: A monad for using CryptoRandomGen
monocypher library and tests: Low level bindings to the monocypher C library.
mt19937 library: Standard 32-bit Mersenne Twister PRNG, in pure Haskell
musig2 library, test and benchmark: MuSig2 library
NaCl library and test: Easy-and-safe-to-use high-level Haskell bindings to NaCl
nettle library and tests: safe nettle binding
newhope library, programs and test: Library implementing the NewHope cryptographic key-exchange protocol
nkeys library and test: Nkeys ed25519 encoding for use with NATS
nonce library: Generate cryptographic nonces.
NTRU library: NTRU Cryptography
oblivious-transfer library and test: An implementation of the Oblivious Transfer protocol in Haskell
one-time-password library, program and test: HMAC-Based and Time-Based One-Time Passwords
openpgp-Crypto library and test: Implementation of cryptography for use with OpenPGP using the Crypto library
openpgp-crypto-api library and test: Implement cryptography for OpenPGP using crypto-api compatible libraries
OTP library and test: HMAC-Based and Time-Based One-Time Passwords (HOTP & TOTP)
pairing library, tests and benchmark: Bilinear pairings
paseto library and test: Platform-Agnostic Security Tokens
PasswordGenerator library: Simple library for generating passwords
passwords library: Password generation/validation library
pasta-curves library, program, test and benchmark: Provides the Pasta curves: Pallas, Vesta and their field elements Fp and Fq.
pbkdf library and test: Haskell implementation of the PBKDF functions from RFC-2898.
PBKDF2 library: Make password-based security schemes more secure.
pedersen-commitment library and test: An implementation of Pedersen commitment schemes
phkdf library and test: Toolkit for self-documenting password hash and key derivation functions.
pipes-cacophony library, program and test: Pipes for Noise-secured network connections.
pkcs1 library: RSA encryption with PKCS1 padding
ppad-aead library, test and benchmark: A pure AEAD-ChaCha20-Poly1305 construction
ppad-base16 library, test and benchmarks: Pure base16 encoding and decoding on bytestrings.
ppad-base58 library, test and benchmark: base58 and base58check encoding/decoding.
ppad-base64 library, test and benchmarks: Fast base64 encoding and decoding on bytestrings.
ppad-bech32 library, test and benchmark: bech32 and bech32m encoding/decoding, per BIPs 173 & 350.
ppad-bip32 library, test and benchmark: BIP32 hierarchical deterministic wallets.
ppad-bip39 library, test and benchmark: BIP39 mnemonic codes.
ppad-bolt1 library, test and benchmarks: Base protocol per BOLT #1
ppad-bolt2 library, test and benchmarks: Peer protocol per BOLT #2
ppad-bolt3 library, test and benchmarks: Bitcoin transaction formats per BOLT #3
ppad-bolt4 library, test and benchmarks: BOLT4 (onion routing) for Lightning Network
ppad-bolt5 library, test and benchmarks: On-chain transaction handling per BOLT #5
ppad-bolt7 library, test and benchmarks: Routing gossip per BOLT #7
ppad-bolt8 library, test and benchmarks: Encrypted and authenticated transport per BOLT #8
ppad-bolt9 library, test and benchmarks: Feature flags per BOLT #9
ppad-chacha library, test and benchmarks: A fast ChaCha20 stream cipher
ppad-hkdf library, test and benchmark: A HMAC-based key derivation function
ppad-hmac-drbg library, test and benchmarks: HMAC-based deterministic random bit generator
ppad-pbkdf library, test and benchmark: A password-based key derivation function
ppad-poly1305 library, test and benchmarks: A fast Poly1305 MAC
ppad-ripemd160 library, test and benchmark: The RIPEMD-160 hashing algorithm.
ppad-script library, test and benchmarks: Primitive Script support.
ppad-secp256k1 library, test and benchmarks: Schnorr signatures, ECDSA, and ECDH on the elliptic curve secp256k1
ppad-sha256 library, test and benchmarks: The SHA-256 and HMAC-SHA256 algorithms
ppad-sha512 library, test and benchmarks: The SHA-512 and HMAC-SHA512 algorithms
ppad-tx library, test and benchmarks: Minimal Bitcoin transaction primitives.
pureMD5 library and test: A Haskell-only implementation of the MD5 digest (hash) algorithm.
pwstore-cli program and test: Command line interface for the pwstore library
pwstore-fast library: Secure password storage.
pwstore-purehaskell library: Secure password storage, in pure Haskell.
qnap-decrypt library, program and test: Decrypt files encrypted by QNAP's Hybrid Backup Sync
quantex library, test and benchmark: NIST post-quantum cryptography: ML-KEM, ML-DSA, SLH-DSA, X-Wing
RSA library and test: Implementation of RSA, using the padding schemes of PKCS#1 v2.1.
rustls library and test: TLS bindings for Rustls
s2n-tls library and test: High-level Haskell bindings to s2n-tls
s2n-tls-ffi library and test: Low-level FFI bindings to the s2n-tls library
saltine library, test and benchmark: Cryptography that's easy to digest (NaCl/libsodium bindings).
saltine-quickcheck library and test: Quickcheck implementations for some NaCl data
scrypt library and test: Stronger password hashing via sequential memory-hard functions.
secret-sharing library and test: Information-theoretic secure secret sharing
secure-memory library, program and tests: Securely allocated and deallocated memory.
sel library and test: Cryptography for the casual user
servant-hmac-auth library and test: Servant authentication with HMAC
SHA library, programs and test: Implementations of the SHA suite of message digest functions
SHA2 library: Fast, incremental SHA hashing for bytestrings
sha256 library and test: A modern binding to SHA256, HMAC, HKDF, and PBKDF2
signable library and test: Deterministic serialisation and signatures with proto-lens support
signable-haskell-protoc program: Deterministic serialisation and signatures with proto-lens support
signify-hs library and program: A Haskell clone of OpenBSD signify.
SimpleAES library: Fast AES encryption/decryption for bytestrings
simplexmq library, programs and test: SimpleXMQ message broker
siphash library and test: siphash: a fast short input PRF
skein library and test: Skein, a family of cryptographic hash functions. Includes Skein-MAC as well.
slip32 library and test: SLIP-0032: Extended serialization format for BIP-32 wallets
sparse-merkle-trees library, test and benchmark: Sparse Merkle trees with proofs of inclusion and exclusion
stego-uuid library and test: Generator and verifier for steganographic numbers
tahoe-chk library, program and test: The Tahoe-LAFS' Content-Hash-Key (CHK) cryptographic protocol.
tahoe-directory library and test: Tahoe-LAFS directory-like abstraction for collections of data objects.
tahoe-great-black-swamp library, programs and test: An implementation of the "Great Black Swamp" LAFS protocol.
tahoe-ssk library, programs and test: An implementation of the Tahoe-LAFS SSK cryptographic protocols
threefish library: The Threefish block cipher and the Skein hash function for Haskell.
TigerHash library: TigerHash with C implementation
triplesec library and tests: TripleSec is a simple, triple-paranoid, symmetric encryption library
trust-chain library and test: An implementation of a trust chain
tuplehash-utils library and test: Left Encode and friends from SHA-3's TupleHash
Twofish library and test: An implementation of the Twofish Symmetric-key cipher.
uuid-crypto library: Reversable and secure encoding of object ids as uuids
WMSigner library and test: WebMoney authentication module
wordpass library and program: Dictionary-based password generator
WringTwistree library, program and test: Whole-message cipher and tree hash
xml-verify library: Verifying XML signatures
xsha1 library: cryptanalysis of Blizzard's broken SHA-1 implementation.
xtea library and test: XTEA (eXtended Tiny Encryption Algorithm).
xxhash library, test and benchmark: A Haskell implementation of the xxHash algorithm
xxhash-ffi library, test and benchmark: Bindings and high-level helpers for xxHash
yggdrasil library and test: Executable specifications of composable cryptographic protocols.
zerobin library and programs: Post to 0bin services

CSharp

tree-sitter-c-sharp library: Tree-sitter grammar/parser for C#

CSS

css-class-bindings library and test: generates Haskell bindings for CSS classes
miso-css library and test: wrapper over miso checking CSS classes applicability through dependent types

CsSyd

iostring library: A class of strings that can be involved in IO.

CSV

Cassava library and test: A CSV parsing and encoding library
cassava library and test: A CSV parsing and encoding library
cassava-embed library and program: CSV-file embedding library
cassava-megaparsec library and test: Megaparsec parser of CSV files that plays nicely with Cassava
cassava-records library and test: Auto-generation of records data type.
cassava-streams library, program and test: io-streams interface for the cassava CSV library.
columnar library: A CSV toolkit based on cassava and enum-text
composite-cassava library and test: Csv parsing functionality for composite.
csv-conduit library and test: A flexible, fast, conduit-based CSV parser library for Haskell.
detour-via-sci library and tests: JSON and CSV encoding for rationals as decimal point numbers.
detour-via-uom library and tests: JSON and CSV encoding for quantities.
dsv library and test: DSV (delimiter-separated values)
hw-dsv library, program, tests and benchmark: Unbelievably fast streaming DSV file parser
ixset-typed-cassava library: cassava encoding and decoding via ixset-typed
ods2csv program: Convert Open Document Spreadsheet ODS to CSV
pipes-csv library and test: Fast, streaming csv parser
pipes-key-value-csv library and test: Streaming processing of CSV files preceded by key-value pairs.
servant-cassava library and test: Servant CSV content-type for cassava
sv library, test and benchmark: Encode and decode separated values (CSV, PSV, ...)
sv-cassava library and test: Integration to use sv with cassava's parser
sv-core library and test: Encode and decode separated values (CSV, PSV, ...)
sv-svfactor library: sv-core + svfactor
svfactor library and test: Syntax-preserving CSV manipulation
tapioca library and test: A tasty enhancement to cassava for easy csv exporting

Culinary

herms program: A command-line manager for delicious kitchen recipes

CUR

stratosphere-cur library: Stratosphere integration for AWS CUR.

Cursor

cursor-gen library, test and benchmark: Generators for Purely Functional Cursors

CustomerProfiles

stratosphere-customerprofiles library: Stratosphere integration for AWS CustomerProfiles.

CustomSetup

autopack library: Custom Setup to automate package modules discovery
chs-cabal library: Cabal with c2hs dependencies

Data

abcBridge library, programs and test: Bindings for ABC, A System for Sequential Synthesis and Verification
abeson library: interconversion between aeson and bson.
abides library and test: Simple boolean tests to see if a value abides by certain properties
ABList library and test: An alternating list of two types
abstract-deque library: Abstract, parameterized interface to mutable Deques.
abstract-deque-tests library and test: A test-suite for any queue or double-ended queue satisfying an interface
abstractly-keyed-implicits library: Manage the implicit parameter namespace dynamically at compile time.
AC-Angle library: Angles in degrees and radians.
AC-Boolean library: Handle Boolean values generatically.
AC-Colour library: Efficient RGB colour types.
AC-HalfInteger library: Efficient half-integer type.
ac-machine library: Aho-Corasick string matching algorithm in Haskell
ac-machine-conduit library: Drive Aho-Corasick machines in Conduit pipelines
AC-Terminal library: Trivial wrapper over ansi-terminal.
AC-VanillaArray library: Immutable arrays with plain integer indicies.
AC-Vector library: Efficient geometric vectors and transformations.
AC-Vector-Fancy library: Fancy type-system stuff for AC-Vector
accelerate library, programs and tests: An embedded language for accelerated array processing
accelerate-bignum library, tests and benchmark: Fixed-length large integer arithmetic for Accelerate
accelerate-cuda library: Accelerate backend for NVIDIA GPUs
accelerate-io library: Convert between Accelerate arrays and raw pointers
accelerate-io-array library and test: Convert between Accelerate and array
accelerate-io-bmp library: Convert between Accelerate arrays and BMP images
accelerate-io-bytestring library: Convert between Accelerate and ByteString
accelerate-io-cereal library: Binary serialisation of Accelerate arrays using cereal
accelerate-io-JuicyPixels library: Convert between Accelerate arrays and JuicyPixels images
accelerate-io-repa library: Convert between Accelerate and Repa arrays
accelerate-io-serialise library: Binary serialisation of Accelerate arrays using serialise
accelerate-io-vector library and test: Convert between Accelerate and vector
accelerate-llvm library: Accelerate backend component generating LLVM IR
accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
accelerate-random library: Generate Accelerate arrays filled with high quality pseudorandom numbers
access-token-provider library and test: Provides Access Token for Services
active library and test: Abstractions for animation
adaptive-containers library: Self optimizing container types
adaptive-tuple library: Self-optimizing tuple types
adhoc-fixtures library and test: Manage fine grained fixtures
adhoc-fixtures-hspec library and test: Manage fine grained fixtures
AERN-Basics library and program: foundational type classes for approximating exact real numbers
AERN-Real library: arbitrary precision real interval arithmetic
AERN-Real-Double library and programs: arbitrary precision real interval arithmetic
AERN-Real-Interval library: arbitrary precision real interval arithmetic
AERN-RnToRm library: polynomial function enclosures (PFEs) approximating exact real functions
AERN-RnToRm-Plot library: GL plotting of polynomial function enclosures (PFEs)
aeson-applicative library: make To/From JSOn instances from an applicative description
aeson-bson library: Mapping between Aeson's JSON and Bson objects.
aeson-casing library and test: Tools to change the formatting of field names in Aeson instances.
aeson-dependent-sum library and test: JSON encoding/decoding for dependent-sum
aeson-extra library and test: Extra goodies for aeson
aeson-helper library: Aeson helper func
aeson-injector library and test: Injecting fields into aeson values
aeson-iproute library and test: Aeson instances for iproute types
aeson-lens library and test: Lens of Aeson
aeson-optics library: Law-abiding optics for aeson
aeson-options library: Options to derive FromJSON/ToJSON instances
aeson-possible library and test: Possible values for aeson
aeson-schema library and test: Haskell JSON schema validator and parser generator
aeson-t library and test: Transform JSON
aeson-utils library: Utilities for working with Aeson.
aeson-value-parser library: API for parsing "aeson" JSON tree into Haskell types
aeson-via library and test: Wrappers to derive-via Aeson ToJSON/FromJSON typeclasses
aeson-with library: withXField combinators for aeson
aeson-yak library: Handle JSON that may or may not be a list, or exist
AesonBson library and test: Mapping between Aeson's JSON and Bson objects.
affinely-extended library
afis library and test: Anti-forensic Information Splitter
agreeing library and test: Idiomatic data structure for agreement
aig library and test: And-inverter graphs in Haskell.
aip library, program and test: Aeronautical Information Package (AIP)
aip-version program: Version of AIP documents
alfred-margaret library, program, test and benchmarks: Fast Aho-Corasick string searching
algebraic-classes library: Conversions between algebraic classes and F-algebras.
algo-s library, program, test and benchmark: An implementation of Knuth's algorithm S.
align library: Sequence alignment algorithms.
align-affine library: Sequence alignment with an affine gap penalty model
alignment library, tests and benchmarks: Principled functor alignment with leftovers
alist library: lists with O(1) append
alphachar library and test: A character between a-z
alpino-tools library and programs: Alpino data manipulation tools
altcomposition library: Alternative combinators for unorthodox function composition
alternative-io library: IO as Alternative instance (deprecated)
always library: provides a typeclass that is always satisfied
ann library: Informative annotations which don't change equality
annotated-fix library: A fixpoint of a functor that can be annotated
anonymous-sums library: Anonymous sum types
anonymous-sums-tests library: QuickCheck functions to accompany the anonymous-sums package
ANum library and test: Num instance for Applicatives provided via the ANum newtype
apache-md5 library, test and benchmark: Apache specific MD5 digest algorighm.
apart library, program and test: Get all your structure and rip it apart.
apecs library, test and benchmark: Fast Entity-Component-System library for game programming
apecs-stm library, test and benchmark: STM stores for apecs
app-lens library and benchmarks: applicative (functional) bidirectional programming beyond composition chains
appc library, program and test: app container types and tools
applicable library: A class for things that can be applied
applicative-numbers library: Applicative-based numeric instances
apply-merge library, test and benchmark: Lift a binary, non-decreasing function onto ordered lists and order the output
approximate-equality library: Newtype wrappers for approximate equality
arbor-lru-cache library and test: LRU cache based on STM
arff library: Generate Attribute-Relation File Format (ARFF) files
arith-encode library and test: A practical arithmetic encoding (aka Godel numbering) library.
armor library and test: Prevent serialization backwards compatibility problems using golden tests
array-builder library and test: Builders for arrays
array-chunks library and test: Lists of chunks
array-list library and tests: IsList instances of Array for OverloadedLists extension
array-primops library, test and benchmark: Extra foreign primops for primitive arrays
array-utils library: Primitive functions for updating many elements in mutable arrays at once
arraylist library and test: Memory-efficient ArrayList implementation
ArrayRef library: Unboxed references, dynamic arrays and more
ascii library and test: The ASCII character set and encoding
ascii-case library and test: ASCII letter case
ascii-caseless library and test: ASCII character without an upper/lower case distinction
ascii-char library and test: A Char type representing an ASCII character
ascii-group library and test: ASCII character groups
ascii-numbers library and test: ASCII representations of numbers
ascii-predicates library and test: Various categorizations of ASCII characters
ascii-superset library and test: Representing ASCII with refined supersets
ascii-table library: ASCII table
ascii-th library and test: Template Haskell support for ASCII
ascii-vector-avc library and program: Process Ascii Vectors for Advantest 93k
ascii85-conduit library and test: Conduit for encoding ByteString into Ascii85
ascii85x library, program and test: Displays TI-85 variable files as text
asn library: asn type and encoding/decoding
asn1-ber-syntax library and tests: ASN.1 BER Encode and Decode
asn1-data library and program: ASN1 data reader and writer in RAW, BER and DER forms
asn1-encoding library and test: ASN1 data reader and writer in RAW, BER and DER forms
asn1-parse library: Simple monadic parser for ASN1 stream types.
asn1-types library: ASN.1 types
assoc library: swap and assoc: Symmetric and Semigroupy Bifunctors
assoc-list library and test: Association lists (lists of tuples)
assoc-listlike library and test: Association lists (list-like collections of tuples)
associative library and test: Partial Semigroup and Semigroup operations
ast-path library and test: vocabulary representation for predicting program properties
astar library: General A* search algorithm.
aterm library: serialisation for Haskell values with sharing support
atlassian-connect-descriptor library and test: Code that helps you create a valid Atlassian Connect Descriptor.
atomic-counter library, test and benchmark: Mutable counters that can be modified with atomic operatinos
atomic-primops library: A safe approach to CAS and other atomic ops in Haskell.
atomic-primops-foreign library and test: An atomic counter implemented using the FFI.
attempt library: Concrete data type for handling extensible exceptions as failures. (deprecated)
atto-lisp library and test: Efficient parsing and serialisation of S-Expressions.
AttoBencode library and test: Fast Bencode encoding and parsing library
attoparsec-arff library: An ARFF file parser using Attoparsec
attoparsec-binary library: Binary processing extensions to Attoparsec.
attoparsec-conduit library: Consume attoparsec parsers via conduit. (deprecated)
attoparsec-iteratee library: An adapter to convert attoparsec Parsers into blazing-fast Iteratees
attoparsec-varword library and test: Variable-length integer decoding for Attoparsec
attosplit library: Split a lazy bytestring at boundaries defined by an attoparsec parser
audiovisual library: A battery-included audiovisual framework
auto-lift-classes library and test: Deriving (Show|Read)(1|2)
automata library and test: automata
avl-static library and test: A compile-time balanced AVL tree.
AvlTree library and test: Balanced binary trees using the AVL algorithm.
avro library, tests and benchmark: Avro serialization support for Haskell
avro-piper library, program and test: Tool for decoding avro
b-tree library, test and benchmark: Immutable disk-based B* trees
babynf library and test: Library for generating parsers from ABNF
bank-holidays-england library and test: Calculation of bank holidays in England and Wales
barbies-th library and tests: Create strippable HKD via TH
base16 library, test and benchmark: Fast RFC 4648-compliant Base16 encoding
base16-bytestring library, test and benchmark: RFC 4648-compliant Base16 encodings for ByteStrings
base16-lens library: Optics for the Base16 library
base32 library, test and benchmark: Fast RFC 4648-compliant Base32 encoding
base32-bytestring library, test and benchmark: Fast base32 and base32hex codec for ByteStrings
base32-lens library: Optics for the Base32 library
base32-z-bytestring library, test and benchmark: Fast z-base32 and z-base32hex codec for ByteStrings
base32string library and test: Fast and safe representation of a Base-32 string
base58-bytestring library, test and benchmark: Implementation of BASE58 transcoding for ByteStrings
base58string library and test: Fast and safe representation of a Base-58 string
base62 library and test: Base62 encoding and decoding
base64 library, test and benchmark: A modern Base64 library
base64-bytes library, test and benchmark: Base64 encoding of byte sequences
base64-bytestring library, test and benchmark: Fast base64 encoding and decoding for ByteStrings
base64-bytestring-type library and test: A newtype around ByteString, for base64 encoding
base64-conduit library and test: Base64-encode and decode streams of bytes. (deprecated)
base64-lens library: Optics for the Base64 library
baserock-schema library, program and test: Baserock Definitions Schema
basesystems library: Implements encoders/decoders for basesystems
basics library and test: Modules for primitive types
batch library and test: Simplify queuing up data and processing it in batch.
bcp47 library and tests: Language tags as specified by BCP 47
bcrypt library: Haskell bindings to the bcrypt password hash
bdelta library: Simple, fast binary diff/patch
beamable library, test and benchmark: Generic serializer/deserializer with compact representation
bencoding library, test and benchmark: A library for encoding and decoding of BEncode data.
bencoding-lens library and test: Lenses for bencoded data.
bert library and test: BERT implementation
between library: Function combinator "between" and derived combinators
bff library and programs: Bidirectionalization for Free! (POPL'09)
bff-mono library: "Bidirectionalization for Free" for Monomorphic Transformations
bidispec library: Specification of generators and parsers
bidispec-extras library: Extra helper functions for bidirectional specifications
bifunctor-classes-compat library: Compatibility package for the Bifunctor, Bifoldable, and Bitraversable classes
bifunctors library and test: Bifunctors
bimap library and test: Bidirectional mapping between two key types
bimap-server library: Two-column database server.
bimaps library, test and benchmark: bijections with multiple implementations.
bin library: Bin: binary natural numbers.
binary library, tests and benchmarks: Binary serialisation for Haskell values using lazy ByteStrings
binary-bits library and test: Bit parsing/writing on top of binary.
binary-communicator library: Flexible way to ease transmission of binary data.
binary-derive library: Automatic deriving of Binary using GHC.Generics
binary-enum library: Simple wrappers around enum types
binary-ext library and test: An alternate with strong-typed errors for `Data.Binary.Get` monad from `binary` package.
binary-generic library: Generic binary serialisation using binary and syb.
binary-generic-combinators library and test: ...
binary-ieee754 library: Backport ieee754 float double combinators to older binary
binary-indexed-tree library: Binary Indexed Trees (a.k.a. Fenwick Trees).
binary-io library and test: Read and write values of types that implement Binary
binary-list library and benchmark: Lists of length a power of two.
binary-orphans library and test: Compatibility package for binary; provides instances
binary-parsers library, test and benchmark: Extends binary with parsec/attoparsec style parsing combinators.
binary-protocol library: Monad to ease implementing a binary network protocol.
binary-protocol-zmq library and program: Monad to ease implementing a binary network protocol over ZeroMQ
binary-shared library: Sharing for the binary package
binary-state library: Simple wrapper around Data.Binary, which adds StateT to Get/Put monads.
binary-store library and test: Format to store data using the binary transform.
binary-streams library and test: data serialization/deserialization io-streams library
binary-strict library and test: Binary deserialisation using strict ByteStrings
binary-tagged library, test and benchmark: Tagged binary serialisation.
binary-typed library, tests and benchmarks: Type-safe binary serialization
binary-varint library: VarInt encoding/decoding via Data.Binary
binarydefer library: Binary serialization with deferred loading
bind-marshal library: Data marshaling library that uses type level equations to optimize buffering.
binder library and test: Variable binding for abstract syntax tree
bindynamic library: A variation of Data.Dynamic.Dynamic with a Binary instance
bini library: A collection of various methods for reading and writing bini files.
binrep library, test and benchmark: Encode precise binary representations directly in types
binrep-instances library: Orphan instances for binrep
BiobaseENA library and test: European Nucleotide Archive data
bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring
bit-vector library and test: Simple bit vectors for Haskell
bitarray library: Mutable and immutable bit arrays
bitarray-bs library and test: Bit array based on ByteString
bitfield library and test: Generic and easy to use haskell bitfields
bitmap library: A library for handling and manipulating bitmaps (rectangular pixel arrays).
bitmap-opengl library: OpenGL support for Data.Bitmap.
bitmaps library: Bitmap library
bitmasks library and test: Bitmasks for efficient storing of boolean flags
bits library: Various bit twiddling and bitwise serialization primitives
bits-atomic library and program: Atomic bit operations on memory locations for low-level synchronization
bits-bytestring library, test and benchmark: Bits instance for bytestrings.
bits-bytestring-lazy library, test and benchmark: Bits instance for lazy bytestrings.
bits-conduit library, test and benchmark: Bitstream support for Conduit
bits-extra library, tests and benchmark: Useful bitwise operations
bits-extras library and program: Efficient high-level bit operations not found in Data.Bits
bitstream library and tests: Fast, packed, strict and lazy bit streams with stream fusion
bitstring library: Lazy bit strings
bitvec library, test and benchmark: Space-efficient bit vectors
bitwise library, test and benchmark: fast multi-dimensional unboxed bit packed Bool arrays
bitwise-enum library, test and benchmark: Bitwise operations on bounded enumerations
blaze-builder library and test: Efficient buffered output.
blaze-builder-conduit library: Convert streams of builders to streams of bytestrings. (deprecated)
blaze-builder-enumerator library: Enumeratees for the incremental conversion of builders to bytestrings.
blazeT library: A true monad (transformer) version of the blaze-markup and blaze-html libraries
bloomfilter library and test: Pure and impure Bloom Filter implementations.
bloomfilter-blocked library, tests and benchmark: Fast, compact Bloom filters
bloomfilter-redis library, test and benchmark: Distributed bloom filters on Redis (using the Hedis client).
boltzmann-samplers library, test and benchmark: Uniform random generators
bond-haskell library, test and benchmark: Runtime support for BOND serialization
bool-extras library: A fold function for Bool
Boolean library: Generalized booleans and numbers
boolean-list library: convert numbers to binary coded lists
boolean-normal-forms library and test: Boolean normal form: NNF, DNF & CNF
boombox library: Chronokinetic stream sources and incremental consumers
boring library: Boring and Absurd types
both library: Like Maybe, but with a different Monoid instance.
bounded-array library: Arrays with a value for every index
bounded-queue library and test: A strict, immutable, thread-safe, single-ended, bounded queue.
boundingboxes library: A generic boundingbox for an arbitrary vector
browscap library: A reader and interface for the Browser Capabilities Project data files.
bsb-http-chunked library, tests and benchmark: Chunked HTTP transfer encoding for bytestring builders
bson library and test: BSON documents are JSON-like objects with a standard binary encoding.
bson-generic library: Generic functionality for BSON
bson-generics library: Generics functionality for BSON
bson-mapping library: Mapping between BSON and algebraic data types.
bspack library, test and benchmark: A simple and fast bytestring packer
btree library, test and benchmark: B-Tree on Unmanaged Heap
buffer library, test and benchmark: Simple mutable low-level buffer for IO
buffer-builder library, tests and benchmarks: Library for efficiently building up buffers, one piece at a time
buffer-builder-aeson library, test and benchmark: Serialize Aeson values with Data.BufferBuilder
buildable library: Typeclass for builders of linear data structures
builder library: bounded ByteArray builder type
bv library and program: Bit-vector arithmetic library
bv-embed library: Define embeddings of small bit vectors into larger ones
bv-little library, test and benchmarks: Efficient little-endian bit vector library
by-other-names library and tests: Give aliases to record fields.
byte-containers library and test: Sets and maps with 8-bit words for keys
byte-order library and test: Portable big-endian and little-endian conversions
byteable library: Type class for sequence of bytes
bytebuild library, test and benchmark: Build byte arrays
bytehash library, test and benchmark: Universal hashing of bytes
bytelog library: Fast logging
bytes library: Sharing code for serialization between binary and cereal
bytes-metrics library, test and benchmark: Calculate string metrics on Bytes efficiently
bytes-patterns library and test: Template haskell macro for casing on Bytes
byteset library: Set of bytes.
byteslice library, test and benchmark: Slicing managed and unmanaged memory
bytesmith library, test and benchmark: Nonresumable byte parser
bytestring library, test and benchmark: Fast, compact, strict and lazy byte strings with a list interface
bytestring-aeson-orphans library: Aeson instances for ByteString, using base 64 encoding
bytestring-arbitrary library, test and benchmark: Arbitrary instances for ByteStrings
bytestring-builder library: The new bytestring builder, packaged outside of GHC
bytestring-builder-varword library and test: Variable-length integer encoding
bytestring-class library: Classes for automatic conversion to and from strict and lazy bytestrings. (deprecated)
bytestring-conversion library, test and benchmark: Type-classes to convert values to and from ByteString.
bytestring-csv library: Parse CSV formatted data efficiently
bytestring-delta library: Simple, fast binary diff/patch
bytestring-encoding library and test: ByteString ↔ Text converter based on GHC.IO.Encoding
bytestring-encodings library, test and benchmark: checks to see if a given bytestring adheres to a certain encoding
bytestring-from library and test: A type-class to convert values from ByteString.
bytestring-ft library and test: Byte String implemented on Finger Tree
bytestring-lexing library and test: Efficiently parse and produce common integral and fractional numbers.
bytestring-plain library: Plain byte strings ('ForeignPtr'-less 'ByteString's)
bytestring-read library, tests and benchmark: fast ByteString to number converting library
bytestring-substring library: break bytestrings up into substrings
bytestring-time library and test: Library for Time parsing from ByteString
bytestring-trie library, test and benchmarks: An efficient finite map from bytestrings to values.
bytestring-typenats library, test and benchmark: Bytestrings with typenat lengths
bytetrie library and test: Tries with Bytes as keys.
bytezap library: Bytestring builder with zero intermediate allocation
C-structs library and tests: C-Structs implementation for Haskell
ca-patterns library and test: Manipulate patterns in cellular automata, create and parse RLE files
ca-province-codes library and test: ISO 3166-2:CA Province Codes and Names
cache library and test: An in-memory key/value store with expiration support
cached-traversable library: Transparent, persistent caching of lazy, traversable structures
caching library and test: Cache combinators.
caching-vault library and test: A vault-style cache implementation
caerbannog library and test: That rabbit's got a vicious streak a mile wide!
call-stack library and test: Use GHC call-stacks in a backward compatible way
cantor-pairing library and test: Convert data to and from a natural number representation
capnp library, program, test and benchmark: Cap'n Proto for Haskell
capped-list library: A list-like type for lazy sequences, with a user-defined termination value.
Cardinality library: Measure container capacity. Use it to safely change container.
carray library, test and benchmarks: A C-compatible array library.
case-insensitive library, test and benchmark: Case insensitive string comparison
cassava-conduit library, test and benchmark: Conduit interface for cassava package
cassava-generic library: Cassave instances for functor-like datatypes like `Either String a`.
cassava-streams library, program and test: io-streams interface for the cassava CSV library.
castagnoli library and test: Portable CRC-32C
categorical-algebra library: Categorical Monoids and Semirings
cbf library, program and test: Bindings to read Crystallographic Binary Files (mostly from detectors)
CBOR library and tests: Encode/Decode values to/from CBOR
ccast library: typesafe c-style casts; useful for FFI
cdar-mBound library, programs, test and benchmark: Exact real arithmetic using Centred Dyadic Approximations
cereal library and test: A binary serialization library
cereal-derive library: Automatic deriving of Serialize using GHC.Generics
cereal-ieee754 library: Floating point support for the 'cereal' serialization library
cereal-io-streams library, test and benchmark: io-streams support for the cereal binary serialization library
cereal-streams library, test and benchmark: Use cereal to encode/decode io-streams.
cereal-text library: Data.Text instances for the cereal serialization library
cereal-time library and test: Serialize instances for types from `time` package.
cereal-vector library and test: Serialize instances for Data.Vector types.
certificate library and programs: Certificates and Key Reader/Writer
chain-codes library and test: Library decoding chain codes from images
chainweb-mining-client program and test: Mining Client for Kadena Chainweb
character-ps library and test: Pattern synonyms for ASCII characters for Word8, Word16 etc
charset library: Fast unicode character sets based on complemented PATRICIA tries
chaselev-deque library and test: Chase & Lev work-stealing lock-free double-ended queues (deques).
chatty-utils library: Some utilities any serious chatty-based application may need.
Checked library: Inbuilt checking for ultra reliable computing
checked library: Bounds-checking integer types.
ChibiHash library, program and test: a simple and fast 64-bit hash function
chimera library, test and benchmark: Lazy infinite streams with O(1) indexing and applications for memoization
choice library: A solution to boolean blindness.
chronos library, test and benchmark: A high-performance time library
chunked-data library: Typeclasses for dealing with various chunked data representations
church-maybe library: Church encoded Maybe
church-pair library: Church encoded pair
churros library and test: Channel/Arrow based streaming computation library.
cimple library, programs and test: Simple C-like programming language
ciphersaber2 library and program: Implementation of CipherSaber2 RC4 cryptography.
circular-enum library and test: Make bounded enum types circular
CLASE library: Cursor Library for A Structured Editor
classify library: Library for classification of media files.
classyplate library and benchmark: Fuseable type-class based generics
ClassyPrelude library: Prelude replacement using classes instead of concrete types where reasonable
clean-unions library: Open unions without need for Typeable
CLI library and test: CLI tools
clist library: Counted list
closed library and test: Integers bounded by a closed interval
cmf library and test: (C)oncurrent (M)onoidal (F)olds
cmph library and test: low level interface to CMPH
code-builder library: Simple system for generating code.
codec library and test: Simple bidirectional serialization
codec-libevent library and program: Cross-platform structure serialisation
codet library and test: CodeT
codet-plugin library and test: GHC type-checker plugin for solving LiftT instances from codet
coerce-util library: utils for Data.Coerce
coercible-subtypes library: Coercible but only in one direction
coercible-subtypes-profunctor library: Combine profunctors with coercible-subtypes
coercion-extras library and test: Extra utilities for manipulating nominal and representational coercions
cofunctor library: DEPRECATED: use the "contravariant" package
collection-json library and test: Collection+JSON—Hypermedia Type Tools
colors library: A type for colors
colour library and test: A model for human colour/color perception
colour-accelerate library: Working with colours in Accelerate
colour-space library and test: Instances of the manifold-classes for colour types
combobuffer library: Various buffer implementations
comfort-graph library and test: Graph structure with type parameters for nodes and edges
comic library: A format for describing comics.
commutative library and test: Commutative binary operations.
commutative-semigroups library: Commutative semigroups
compact library and test: Non-GC'd, contiguous storage for immutable data structures
compact-list library and test: An append only list in a compact region
compact-map library: Compact Data.Map implementation using Data.Binary
compact-mutable-vector library and test: Mutable vector with different GC characteristics
compact-sequences library and tests: Stacks, queues, and deques with compact representations.
compact-string library: Fast, packed and strict strings with Unicode support, based on bytestrings.
compact-string-fix library: Same as compact-string except with a small fix so it builds on ghc-6.12
compact-word-vectors library and test: Small vectors of small integers stored very compactly.
compactmap library and test: A read-only memory-efficient key-value store.
compose-ltr library and test: More intuitive, left-to-right function composition.
composite-dhall library and test: Dhall instances for composite records.
composite-lens-extra library: Extra lens functions for composite.
composite-xml library and test: RecXML Type
composition library: Combinators for unorthodox function composition
composition-extra library: Combinators for unorthodox structure composition
composition-prelude library: Higher-order function combinators
composition-tree library and test: Composition trees for arbitrary monoids.
compositional-data library, test and benchmark: Compositional Data Types
compound-types library and benchmark: Sum and Product types and such
compressed library: Compressed containers and reducers
comptrans library: Automatically converting ASTs into compositional data types
conala-dataset library and test: bindings to the CoNaLa dataset
concise library and test: Utilities for Control.Lens.Cons
concrete-haskell library, programs and tests: Library for the Concrete data format.
concrete-haskell-autogen library: Automatically generated Thrift definitions for the Concrete data format.
concrete-typerep library and test: Binary and Hashable instances for TypeRep
concurrent-batch library: Concurrent batching queue based on STM with timeout.
concurrent-buffer library, test and benchmark: Concurrent expanding buffer
concurrent-resource-map library and test: Concurrent resource map
condorcet library: Library for Condorcet voting
conduit library, test and benchmarks: Streaming data processing library.
conduit-combinators library: DEPRECATED Functionality merged into the conduit package itself
conduit-concurrent-map library and test: Concurrent, order-preserving mapping Conduit
conduit-extra library, test and benchmark: Batteries included conduit: adapters for common libraries.
conduit-resumablesink library and test: Allows conduit to resume sinks to feed multiple sources into it.
conduit-throttle library and test: Throttle Conduit Producers
conduit-tokenize-attoparsec library, program and test: Conduits for tokenizing streams.
conffmt program: A .conf file formatter
confide library and test: derive typeclass instances for decoding types from HOCON conf
config-manager library and test: Configuration management
configifier library, program and test: parser for config files, shell variables, command line args.
configuration library: Simple data type for application configuration.
configurator library and test: Configuration management
configurator-export library and test: Pretty printer and exporter for configurations from the "configurator" library.
configurator-ng library and test: The next generation of configuration management
configurator-pg library and test: Reduced parser for configurator-ng config files
congruence-relation library: Decidable congruence relations for Haskell: up to you whether this is a joke
connection-pool library: Connection pool built on top of resource-pool and streaming-commons.
ConsStream library: Trivial re-export of Wouter Swierstra's Stream package, avoiding module name clash.
constaparser library: Parse ByteStrings of a prescribed length.
constrained library: Generalization of standard Functor, Foldable, and Traversable classes
constrained-dynamic library and test: Dynamic typing with retained constraints
constrained-platform-instances library: Instances of standard platform types for 'constrained' package.
constrained-some library and test: Existential type that can be constrained
constraint-tuples library: Partially applicable constraint tuples
construct library and tests: Haskell version of the Construct library for easy specification of file formats
container library: Containers abstraction and utilities.
containers-accelerate library and test: Hashing-based container types
containers-deepseq library: Provide orphan NFData instances for containers as needed. (deprecated)
containers-verified library: Formally verified drop-in replacement of containers
context library and test: Thread-indexed, nested contexts
context-resource library and test: Thread-safe, pool-compatible resource provider
context-stack library: An abstraction of a stack and stack-based monadic context.
contiguous library, tests and benchmark: Unified interface for primitive arrays
contiguous-checked library: contiguous with bounds checks
contiguous-fft library: dft of contiguous memory structures
contravariant library: Contravariant functors
control-monad-attempt library: Monad transformer for attempt. (deprecated)
conversion library: Universal converter between values of different types
conversion-bytestring library: "Conversion" instances for the "bytestring" library
conversion-case-insensitive library: "Conversion" instances for the "case-insensitive" library
conversion-text library: "Conversion" instances for the "text" library
convert library: Safe and unsafe data conversion utilities with strong type-level operation. checking.
convert-units library, test and benchmark: Statically typed unit conversions
convertible library and test: Typeclasses and instances for converting between types
convertible-ascii library: convertible instances for ascii
convertible-text program: Typeclasses and instances for converting between types (deprecated)
COrdering library: An algebraic data type similar to Prelude Ordering.
coroutine-iteratee library: Bridge between the monad-coroutine and iteratee packages.
count library: Bijective mappings between values and possibly infinite prefixes of [0..]
countable library and test: Countable, Searchable, Finite, Empty classes
counter library: An object frequency counter.
country-codes library, program and test: ISO 3166 country codes and i18n names.
coya library: Coya monoids
cpio-conduit library and test: Conduit-based CPIO
cpu library and program: Cpu information and properties helpers.
cqrs library: Command-Query Responsibility Segregation
cqrs-core library: Command-Query Responsibility Segregation
cqrs-memory library and test: Memory backend for the cqrs package.
cqrs-postgresql library and test: PostgreSQL backend for the cqrs package.
cqrs-sqlite3 library and test: SQLite3 backend for the cqrs package.
cqrs-test library: Command-Query Responsibility Segregation Test Support
cqrs-testkit library: Command-Query Responsibility Segregation Test Support
cqrs-types library: Command-Query Responsibility Segregation. Modules for the basic types.
critbit library, test and benchmark: Crit-bit maps and sets
crjdt-haskell library and test: A Conflict-Free Replicated JSON Datatype for Haskell
croque-mort program: Dead simple broken links checker on local HTML folders
crypt-sha512 library and test: Pure Haskell implelementation for GNU SHA512 crypt algorithm
crypto-api library: A generic interface for cryptographic operations
crypto-api-tests library: A test framework and KATs for cryptographic operations.
cryptohash library, test and benchmarks: collection of crypto hashes, fast, pure and practical
cryptohash-md5 library, test and benchmark: Fast, pure and practical MD5 implementation
cryptohash-sha1 library, test and benchmark: Fast, pure and practical SHA-1 implementation
cryptohash-sha256 library, program, test and benchmark: Fast, pure and practical SHA-256 implementation
cryptohash-sha512 library, tests and benchmark: Fast, pure and practical SHA-512 implementation
crypton-asn1-encoding library and test: ASN.1 data (raw, BER or DER) readers and writers
crypton-asn1-parse library: A monadic parser combinator for a ASN.1 stream.
crypton-asn1-types library: ASN.1 types
crypton-pem library and test: Privacy Enhanced Mail (PEM) file format reader and writer.
crypton-x509 library and test: X509 reader and writer
crypton-x509-store library and test: X.509 collection accessing and storing methods
crypton-x509-system library: Handle per-operating-system X.509 accessors and storage
crypton-x509-util program: Utility for X509 certificate and chain
crypton-x509-validation library and test: X.509 Certificate and CRL validation
css-syntax library, test and benchmark: High-performance CSS tokenizer and serializer.
csv-conduit library and test: A flexible, fast, conduit-based CSV parser library for Haskell.
csv-enumerator library: A flexible, fast, enumerator-based CSV parser library for Haskell.
csv-sip library and test: extracts data from a CSV file
csv-table library: Scripts for manipulating tables stored as CSV files
CTRex library: Open records using closed type families.
cuckoo library, tests and benchmarks: Haskell Implementation of Cuckoo Filters
cuckoo-filter library, program and test: Pure and impure Cuckoo Filter
cudd library: Bindings to the CUDD binary decision diagrams library
currencies library and test: Currencies representation, pretty printing and conversion
currency library: Types representing standard and non-standard currencies
currency-codes library and test: ISO-4217 Currency Codes
currency-convert library: Typesafe currency conversion
curry library: Curry types
cve library: simple and efficient cve datatype
cvss library and test: Common Vulnerability Scoring System.
cybus library, program and test: multi-dimensional arrays
czipwith library and test: CZipWith class and deriving via TH
d10 library and tests: Digits 0-9
dahdit library and test: Binary parsing and serialization with integrated size
dani-optics-dot library and test: Use OverloadedRecordDot for nested optics access.
data-accessor library: Utilities for accessing and manipulating fields of records
data-accessor-monadLib library: Accessor functions for monadLib's monads
data-accessor-monads-fd library: Use Accessor to access state in monads-fd State monad class
data-accessor-monads-tf library: Use Accessor to access state in monads-tf State monad type family
data-accessor-mtl library: Use Accessor to access state in mtl State monad class
data-accessor-template library: Utilities for accessing and manipulating fields of records
data-accessor-transformers library: Use Accessor to access state in transformers State monad
Data-Angle library: Geometric angles
data-as library: Simple extensible sum
data-ascii library: Type-safe, bytestring-based ASCII values
data-binary-ieee754 library: Parser/Serialiser for IEEE-754 floating-point values
data-bword library and test: Extra operations on binary words of fixed length
data-carousel library: A rotating sequence data structure
data-cell library: Generic cellular data representation library
data-check library and test: Library for checking and normalization of data (e.g. from web forms)
data-checked library: Type-indexed runtime-checked properties
data-combinator-gen library: Generate a special combinator from any data type.
data-compat library: Define Backwards Compatibility Schemes for Arbitrary Data
data-constructors library, test and benchmark: Generically compare data by their constructors
data-cycle library: a cyclic doubly linked list
data-default library and test: A class for types with a default value
data-default-class library: A class for types with a default value (compatibility shim)
data-default-extra library: A class for types with a default value.
data-default-generics library and test: A class for types with a default value
data-default-instances-base library: Default instances for types in base
data-default-instances-bytestring library: Default instances for (lazy and strict) ByteString, Builder and ShortByteString.
data-default-instances-case-insensitive library: Default instance for CI type from case-insensitive package.
data-default-instances-containers library: Default instances for types in containers
data-default-instances-dlist library: Default instances for types in dlist
data-default-instances-new-base library: Default instances for types in newer versions of base package.
data-default-instances-old-locale library: Default instances for types in old-locale
data-default-instances-text library: Default instances for (lazy and strict) Text and Text Builder.
data-default-instances-unordered-containers library: Default instances for unordered-containers.
data-default-instances-vector library: Default instances for types defined in vector package
data-dispersal library and test: Space-efficient and privacy-preserving data dispersal algorithms.
data-diverse library, test and benchmark: Extensible records and polymorphic variants.
data-diverse-lens library and test: Isos & Lens for Data.Diverse.Many and Prisms for Data.Diverse.Which
data-dword library and test: Stick two binary words together to get a bigger one
data-easy library and test: Consistent set of utility functions for Maybe, Either, List and Monoids.
data-elevator library and test: Coerce between unlifted boxed and lifted types.
data-elf library: Executable and Linkable Format (ELF) data structures.
data-embed library and program: Embed files and other binary blobs inside executables without Template Haskell.
data-endian library: Endian-sensitive data
data-extend-generic library and test: Extend Haskell data or newtype like in OOP languages
data-filepath library: A type safe file path data structure
data-filter library: Utilities for filtering
data-fin library: Finite totally ordered sets
data-fin-simple library and test: Simple integral finite set
data-findcycle library, test and benchmark: Find cycles in periodic functions (and lists)
data-fix library: Fixpoint data types
data-fix-cse library: Common subexpression elimination for the fixploint types.
data-flags library: A package for working with bit masks and flags in general.
data-flagset library: An efficient data type for sets of flags
data-foldapp library: Fold function applications. Framework for variadic functions.
data-forced library and test: Specify that lifted values were forced to WHNF or NF.
data-function-meld library: Map the arguments and return value of functions.
data-function-tacit library: ...
data-has library and benchmark: Simple extensible product
data-hash library and test: Combinators for building fast hashing functions.
Data-Hash-Consistent library: Provide a simple consistent hashing mechanism
data-index library and test: Extending the concept of indices for lists and other containers
data-interval library and test: Interval datatype, interval arithmetic and interval-based containers
data-inttrie library: A simple lazy, infinite trie from integers
data-ivar library: Write-once variables with concurrency support
data-json-token library, program and test: Json Token datatype
data-kiln library: ...
data-layout library: Read/write arbitrary binary layouts to a "Data.Vector.Storable".
data-lens-light library: Simple lenses, minimum dependencies
data-lens-template library: Utilities for Data.Lens
data-list-sequences library: Utilities for working with sequences within lists.
data-list-zigzag library: A list but with a balanced enumeration of Cartesian product.
data-map-multikey library: Data.Map with multiple, unique keys
data-memocombinators library: Combinators for building memo tables.
data-msgpack library, program, test and benchmark: A Haskell implementation of MessagePack
data-msgpack-types library and test: A Haskell implementation of MessagePack.
data-nat library: data Nat = Zero | Succ Nat
data-object library: Represent hierachichal structures, called objects in JSON. (deprecated)
data-or library: A data type for non-exclusive disjunction.
data-ordlist library: Set and bag operations on ordered lists
data-partition library: A pure disjoint set (union find) data structure
data-pdf-fieldreader library and program: Read PDF form fields
data-quotientref library: Reference cells that need two independent indices to be accessed.
data-ref library: Unify STRef and IORef in plain Haskell 98
data-reify library, programs and test: Reify a recursive data structure into an explicit graph.
data-reify-cse library: Common Sub-Expression Elimination for graphs generated by Data.Reify.
data-reify-gadt library, program and test: Data.Reify for GADTs
data-rev library: A typeclass for reversing order of contents.
Data-Rope library: Ropes, an alternative to (Byte)Strings.
data-rope library: Ropes, an alternative to (Byte)Strings.
data-serializer library and test: Common API for serialization libraries
data-sketches library, test and benchmark: ...
data-spacepart library: Deprecated. Now called "spacepart". Space partitioning data structures.
data-standards library: A collection of standards representable by simple data types.
data-store library, test and benchmark: Type safe, in-memory dictionary with multidimensional keys.
data-sword library and test: Shorter binary words
data-tensor library: Tensor and Group typeclasses
data-textual library and test: Human-friendly textual representations.
data-timeout library: 64-bit timeouts of nanosecond precision
data-transform library: Functions to transform data structures.
data-treify library: Reify a recursive data structure into an explicit graph.
data-type library: Basic type wrangling types and classes
data-util library: utilities for handle data
data-validation library and test: A library for creating type safe validations.
data-variant library: A variant data type, useful for modeling dynamically-typed programming languages
data-vector-growable library and test: Dynamic growable resizable mutable generic vector
datacrypto library: Encryption library
dataframe library, programs, tests and benchmark: A fast, safe, and intuitive DataFrame library.
dataframe-arrow : Arrow C Data Interface foreign library for the dataframe Python bindings.
dataframe-core library: Core data structures for the dataframe library.
dataframe-csv library: CSV reader and writer for the dataframe ecosystem.
dataframe-csv-th library: CSV-file-based Template Haskell splices for the dataframe ecosystem.
dataframe-expr-serializer library: Serialize and deserialize dataframe expressions and pipelines.
dataframe-fastcsv library and test: SIMD-accelerated CSV reader for the dataframe library.
dataframe-hasktorch library and test: Converts between dataframes and hasktorch tensors
dataframe-huggingface library and test: Read Parquet datasets from HuggingFace into dataframes.
dataframe-json library: JSON reader and writer for the dataframe ecosystem.
dataframe-lazy library: Lazy query engine for the dataframe ecosystem.
dataframe-learn library and test: Interpretable, expression-returning machine learning for the dataframe ecosystem.
dataframe-operations library: Column operations, expression DSL, and statistics for the dataframe ecosystem.
dataframe-parquet library: Parquet reader and writer for the dataframe ecosystem.
dataframe-parquet-th library: Parquet-file-based Template Haskell splices for the dataframe ecosystem.
dataframe-parsing library, test and benchmark: Shared text/binary parsing helpers for the dataframe ecosystem.
dataframe-persistent library and test: Persistent database integration for the dataframe library
dataframe-th library: Record-based Template Haskell splices for the dataframe ecosystem.
dataframe-viz library: Visualisation/plotting helpers for the dataframe ecosystem.
DataIndex library, program, test and benchmark: A package for adding index column to data files
datasets library, test and benchmark: Classical data sets for statistics and machine learning
DataVersion library and test: Type safe data migrations
date-conversions library and test: Date conversions
dates library and test: Small library for parsing different dates formats.
datetime library and test: Utilities to make Data.Time.* easier to use
datetime-sb library and test: Utilities to make Data.Time.* easier to use.
dawg library: Directed acyclic word graphs
dawg-ord library and test: Directed acyclic word graphs
dawgdic library, program, test and benchmark: Generation and traversal of compressed directed acyclic dawg graphs
DCFL library: Communication Free Learning-based constraint solver
ddate library: Discordian Date Types for Haskell
dec library: Decidable propositions.
decision-diagrams library and tests: Binary Decision Diagrams (BDD) and Zero-suppressed Binary Decision Diagrams (ZDD)
deep-map library: Deeply-nested, multiple key type maps.
defun library and test: Defunctionalization helpers
defun-bool library: Defunctionalization helpers: booleans
defun-core library: Defunctionalization helpers: core definitions
defun-sop library: Defunctionalization helpers: lists
deiko-config library: Small and typesafe configuration library.
delimited-text library: Parse character delimited textual data
delta library, programs and test: A library for detecting file changes
dense library and test: Mutable and immutable dense multidimensional arrays
dense-int-set library and test: Dense int-set
dependent-enummap library and test: A generalisation of EnumMap to dependent types
dependent-hashmap library and test: Dependent hash maps
dependent-map library: Dependent finite maps (partial dependent products)
dependent-monoidal-map library: Dependent map that uses semigroup mappend
dependent-state library: Control structure similar to Control.Monad.State, ...
dependent-sum library: Dependent sum type
depq library and test: Double-ended priority queues
deque library and test: Double-ended queues
derive-enumerable library: Generic instances for enumerating complex data types
derive-IG library: Macro to derive instances for Instant-Generics using Template Haskell
derive-lifted-instances library: Derive class instances though various kinds of lifting
derive-prim library and test: Derive Prim and PrimUnaligned
derive-trie library: Automatic derivation of Trie implementations.
deriveJsonNoPrefix library and test: Derive ToJSON/FromJSON instances in a more prefix-friendly manner.
describe library and test: Combinators for describing binary data structures
descrilo library: Loads a list of items with fields
detour-via-sci library and tests: JSON and CSV encoding for rationals as decimal point numbers.
detour-via-uom library and tests: JSON and CSV encoding for quantities.
dgim library and test: Implementation of DGIM algorithm
dhall-secret library, program and test: Encrypt Decrypt Dhall expressions
dice-entropy-conduit library and test: Cryptographically secure n-sided dice via rejection sampling
dicom library: ...
diff-loc library: Map file locations across diffs
diff3 library and test: Perform a 3-way difference of documents
diffmap library: diff on maps
Digit library: A data-type representing digits 0-9
digit library and test: A data-type representing digits 0-9 and other combinations
digits library and test: Converts integers to lists of digits and back.
digraph library and test: Directed Graphs
DimensionalHash library: An n-dimensional hash using Morton numbers.
direct-binary-files library: Serialization and deserialization monads for streams and ByteStrings.
direct-murmur-hash library: An implementation of the MurmurHash3 algorithm
directory-tree library and test: A simple directory-like tree datatype, with useful IO functions
dirfiles library
discrete library: replacement for enum
discrete-intervals library: Discrete Intervals
discrete-space-map library: A discrete space map.
discrimination library, test and benchmarks: Fast generic linear-time sorting, joins and container construction.
Dish library and program: Hash modules (currently Murmur3)
disjoint-set library and test: Persistent disjoint-sets, a.k.a union-find.
disjoint-set-stateful library and test: Monadic disjoint set
diskhash library and test: Disk-based hash table
DistanceUnits library: A comprehensive distance library
dlist library and test: Difference lists
dlist-instances library: Difference lists instances
dlist-nonempty library, test and benchmark: Non-empty difference lists
do-list library, test and benchmark: Do notation for free
dockerfile library and test: A Haskell DSL for generating Dockerfiles
docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
doldol library and test: Flag packer & handler for flaggable data
dot library and program: Datatypes and encoding for graphviz dot files
dotnet-timespan library: .NET TimeSpan
double-metaphone library: Haskell bindings to a C double-metaphone implementation.
doublezip library: Some special functions to work with lists (with zip).
DPutils library, test and benchmarks: utilities for DP
dson library: Haskell Doge Serialized Object Notation Parser
dson-parsec library: DSON parser.
dstring library: Difference strings
dtab library and program: Harmonix (Guitar Hero, Rock Band) DTA/DTB metadata library
dtd-text library: Parse and render XML DTDs
dtd-types library: Basic types for representing XML DTDs
dual-tree library and test: Rose trees with cached and accumulating monoidal annotations
dublincore-xml-conduit library and tests: XML streaming parser/renderer for the Dublin Core standard elements.
dunning-t-digest library and programs: Dunning t-digest for online quantile estimation
dvv library and test: Dotted Version Vectors (DVV)
dwarf library: Parser for DWARF debug format.
dwarf-el library: Parser for DWARF debug format.
dynamic-array library: Minimum-overhead mutable dynamic arrays
dynamic-graphs library, programs, test and benchmark: Dynamic graph algorithms
dynamic-mvector library: A wrapper around MVector that enables pushing, popping and extending.
dynamic-object library and tests: Object-oriented programming with duck typing and singleton classes.
dynamic-pipeline library, program and test: Library Type Safe implementation of Dynamic Pipeline Paradigm (DPP).
dynamic-state library: Optionally serializable dynamic state keyed by type
DynamicTimeWarp library and programs: Dynamic time warping of sequences.
edit library and test: A monad for rewriting things.
edit-distance-vector library and test: Calculate edit distances and edit scripts between vectors.
edit-lenses library: Symmetric, stateful edit lenses
edit-lenses-demo program: Programs demoing the use of symmetric, stateful edit lenses
editable library: Interactive editors for Generics
edits library and test: show the differences between 2 pieces of Text using the Levenshtein distance
effable library and test: A data structure for emission plans
effectful-poolboy library and test: Simple work queue for bounded concurrency (effectful wrapper)
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
either-both library and test: Either or both
either-list-functions library and test: Functions involving lists of Either
either-result library and tests: The simplest ‘MonadFail’ instance
either-semigroup library: Either with a stricter Semigroup instance
either-unwrap library: Functions for probing and unwrapping values inside of Either.
elasticsearch-interchange library and test: Serialization of Elasticsearch requests and responses
elerea-sdl library: Elerea FRP wrapper for SDL
elf library and test: An Elf parser
elm-export-persistent library: elm-export persistent entities
empty-monad library: A container that always has no values.
encode-string library and test: Safe string conversion and encoding
encoding-io library: Encoding-aware file I/O.
endo library: Endomorphism utilities.
engineering-units library: A numeric type for managing and automating engineering units.
entropy library: A platform independent entropy source
enum-subset-generate library and test: Generate an ADT being a subset of another ADT, and the corresponding mappings.
enum-types library: small enum types
EnumContainers library: Simple Enum-class-based int containers
enumerable library: A typeclass for enumerating all values a type
enumerate library and program: enumerate all the values in a finite type (automatically)
enumeration library and test: A practical API for building recursive enumeration procedures and enumerating datatypes.
enumerator library: Reliable, high-performance processing with left-fold enumerators
enumfun library: Finitely represented /total/ EnumMaps
enummapmap library, tests and benchmark: Map of maps using Enum types as keys
enummapset-th library: TH-generated EnumSet/EnumMap wrappers around IntSet/IntMap.
enumset library: Sets of enumeration values represented by machine words
envy-extensible library and tests: Provides FromEnv in envy instance for Record of extensible.
equivalence library and test: Maintaining an equivalence relation implemented as union-find using STT.
error library and test: The canonical error type
error-or library: Composable, hierarchical errors.
error-or-utils library: Utilities using ErrorOr datatype
esqueleto-compat library and test: Compatibility operators for Persistent and Esqueleto
ess library: The type-level S combinator in Haskell.
EstProgress library: Methods for estimating the progress of functions
eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding
euler-tour-tree library and tests: Euler tour trees
EuroIT library: Library for using euro currency, italian language
event-handlers library: Event handlers
event-list library and test: Event lists with relative or absolute time stamps
every-bit-counts library: A functional pearl on encoding and decoding using question-and-answer strategies
ex-pool library: Another fork of resource-pool, with a MonadIO and MonadCatch constraint
exact-pi library and test: Exact rational multiples of pi (and integer powers of pi)
exinst library: Dependent pairs and their instances.
exinst-aeson library and test: @exinst@ support for @aeson@ package.
exinst-base library and test: @exinst@ support for @base@ package.
exinst-bytes library and test: @exinst@ support for @bytes@ package.
exinst-cereal library and test: @exinst@ support for @cereal@ package.
exinst-deepseq library: Derive instances for the `deepseq` library for your existential types.
exinst-hashable library: Derive instances for the `hashable` library for your existential types.
exinst-serialise library and test: Dependent pairs and their instances.
existential library: Existential types with lens-like accessors.
explicit-constraint-lens library and test: Fully-flexible polymorphic lenses, without any bizarre profunctors
express library, tests and benchmarks: Dynamically-typed expressions involving function application and variables.
expressions library and test: Expressions and Formulae a la carte
expressions-z3 library and test: Encode and Decode expressions from Z3 ASTs
extend-record-data-th library and test: TH to define a new record data type that extends the existing record data type.
extended library and test: Support for an 80-bit extended float.
extensible library and test: Extensible, efficient, optics-friendly data types and effects
extensible-data library: Sums/products/lists/trees which can be extended in other modules
extensible-sp library: light-weight, extensible sums and products over types and kinds
extra-data-yj library and test: Additional data types
extractable-singleton library: A functor, where the "stored" value is isomorphic to Identity
f-algebra-gen library: Generate a special f-algebra combinator from any data type.
facts library: Refined types
fadno-braids library: Braid representations in Haskell
failable-list library: A list-like type for lazy streams, which might terminate with an error.
fair library, test and benchmark: Lists with fair choice
fair-predicates library: Fair Predicates
fake library and test: Randomly generated fake data
fallible library and test
familiar-reflection library: Reifies arbitrary terms into types that can be reflected back into terms
family-tree library: A family tree library for the Haskell programming language.
fast-builder library, test and benchmarks: Fast ByteString Builder
fast-digits library, test and benchmark: Integer-to-digits conversion.
fast-nats library: Natural Numbers with no overhead
fasta library: A simple, mindless parser for fasta files.
fastsum library and program: A fast open-union type suitable for 100+ contained alternatives
fay-text library: Fay Text type represented as JavaScript strings
fca library: Algo for Formal Concept Analysis
fclabels library, test and benchmark: First class accessor labels implemented as lenses.
fclabels-monadlib library: MonadLib monadic interface for the "fclabels" package.
fields library: First-class record field combinators with infix record field syntax.
fieldwise library and test: ...
file-embed library and test: Use Template Haskell to embed file contents directly.
file-embed-lzma library and test: Use Template Haskell to embed (LZMA compressed) data.
file-embed-poly library and test: Use Template Haskell to embed file contents directly.
filecache library and test: A cache system associating values to files.
filediff library and test: Diffing and patching module
filestore library and test: Interface for versioning file stores.
filesystem-conduit library and test: Use system-filepath data types with conduits. (deprecated)
filesystem-trees library: Recursively manipulate and traverse filesystems as lazy rose trees.
filters-basic library: Allows to change the structure of the function output.
filtrable library and test: Class of filtrable containers
Fin library: Finite totally-ordered sets
fin library and test: Nat and Fin: peano naturals and finite numbers
fin-int library: Finite sets of static size
fingertree-tf library: Generic finger-tree structure using type families.
finitary library and test: A better, more type-safe Enum.
finitary-derive library and test: Flexible and easy deriving of type classes for finitary types.
finitary-optics library and test: Prisms and Isos between finitary types.
finite-field library and test: Finite Fields
finite-table library and test: Types isomorphic to Fin, and Tables indexed by them.
finite-typelits library and test: A type inhabited by finitely many values, indexed by type-level naturals
FiniteCategories library and test: Finite categories and usual categorical constructions on them.
FiniteCategoriesGraphViz library and test: Transform objects of the package FiniteCategories into graphs using GraphViz.
FiniteMap library: A finite map implementation, ...
first-and-last library and test: First and Last generalized to return up to n values
first-class-patterns library: First class patterns and pattern matching, using type families
fit library and test: FIT file decoder
fitsio library: A library for reading and writing data files in the FITS data format.
fixed-length library: Lists with statically known length based on non-empty package.
fixed-list library: A fixed length list type
fixed-point library: Binary fixed-point arithmetic
fixed-point-vector library: Unbox instances for the fixed-point package
fixed-point-vector-space library: vector-space instances for the fixed-point package
fixed-vector library and tests: Generic vectors with statically known size.
fixed-vector-aeson library: Aeson instances for fixed-vector
fixed-vector-binary library: Binary instances for fixed-vector
fixed-vector-cborg library: Binary instances for fixed-vector
fixed-vector-cereal library: Cereal instances for fixed-vector
fixed-vector-hetero library and test: Library for working with product types generically
fixed-vector-QC library: QuickCheck instances for fixed-vector
FixedPoint-simple library: Fixed point, large word, ...
fixedprec library: A fixed-precision real number type
fixfile library and test: File-backed recursive data structures.
fixpoint library: Data types as fixpoints
fixtime library: Some fixes to the time package
flag library: A simple flag type.
flag-dhall-instance library: FromDhall and ToDhall instances for flag.
flat library and tests: Principled and efficient bit-oriented binary serialization.
flat-maybe library: Strict Maybe without space and indirection overhead
flatbuffers library, test and benchmark: Haskell implementation of the FlatBuffers protocol.
flatbuffers-builder library and test: Flatbuffers encoding based on a syntax tree
flatbuffers-parser library and test: Parse flatbuffers
flay library and test: Generic programming for higher-kinded types.
flexible-time library: simple extension of Data.UnixTime.
flexiwrap library: Flexible wrappers
flexiwrap-smallcheck library: SmallCheck (Serial) instances for flexiwrap
flight-igc library: A parser for IGC files.
flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.
float-binstring library and test: C99 printf "%a" style formatting and parsing
floating-bits library, test and benchmark: Bitwise accurate floating point conversion, and Unit of Lease Precision calculation.
fmlist library: FoldMap lists
Focus library: Tools for focusing in on locations within numbers
focus library and test: A general abstraction for manipulating elements of container data structures
foldable-ix library: Functions to find out the indices of the elements in the Foldable structures
foldable1-classes-compat library, test and benchmark: Compatibility package for the Foldable1 and Bifoldable1 type classes
folds library: Beautiful Folding
folds-common library and tests: A playground of common folds for folds
forms-data-format library and programs: Parse and serialize FDF, the Forms Data Format
foscam-directory library and test: Foscam File format
foscam-filename library and test: Foscam File format
foscam-sort library, program and test: Foscam File format
Foster program and benchmark: Utilities to generate and solve puzzles
fractaltext library and test: Reference implementation of FractalText
fraction library: Fractions
Frames library, programs, tests and benchmarks: Data frames for working with tabular data files
Frames-beam library and test: A library for accessing Postgres tables as in-memory data structures.
Frames-dsv library and test: Alternative CSV parser for the Frames package
Frames-map-reduce library and test: Frames wrapper for map-reduce-folds and some extra folds helpers.
Frames-streamly library, program, test and benchmark: A streamly layer for Frames I/O
free-functors library: Free functors, adjoint to functors that forget class constraints.
freq library, test and benchmark: Are you ready to get freaky?
frontmatter library and test: Parses frontmatter as used in Jekyll markdown files.
fsmActions library: Finite state machines and FSM actions
fsnotify-conduit library and test: Get filesystem notifications as a stream of events
ftcqueue library and test: FTC Queue
ftree library: Depth-typed functor-based trees, both top-down and bottom-up
full-text-search library, program and test: In-memory full text search engine
functional-kmp library: KMP implemented on haskell's built-in cons-cell-based lists.
functor-classes-compat library: Data.Functor.Classes instances for core packages
functor-combinators library and test: Tools for functor combinator-based program design
functor-combo library: Functor combinators with tries & zippers
functor-infix library: Infix operators for mapping over compositions of functors. Lots of them.
functor-monadic library: Monad-style combinators for functors.
functor-products library: General functor products for various Foldable instances
functor-utils library: Collection of functor utilities, providing handy operators, like generalization of (.).
functora-witch library and test: Convert values from one type into another.
fusion library and test: Effectful streaming library based on shortcut fusion techniques
fuzzyset library and test: Fuzzy set data structure for approximate string matching
fuzzystrmatch-pg library and test: Determine string similarities and distance
fvars library and test: Fast Mutable Vars
game-tree library: Searching game trees with alpha-beta pruning
garfield library: TBA
gather library: An applicative for parsing unordered things, heterogenous sorting
gc library: Poor Richard's Memory Manager
gdiff library: Generic diff and patch
general-prelude library: Prelude replacement using generalized type classes where possible
generic-accessors library and test: stringly-named getters for generic data
generic-aeson library: Derivation of Aeson instances using GHC generics.
generic-binary library: Generic Data.Binary derivation using GHC generics.
generic-data-asserts library and test: Structural assertions on generic data representations.
generic-data-functions library: Familiar functions lifted to generic data types
generic-labels library and test: Generically extract and replace collections of record fields
generic-lexicographic-order library and test: Derive Bounded and Enum for sum types and Enum for product types
generic-match library: First class pattern matching
generic-monoid library: Derive monoid instances for product types.
generic-storable library and test: Generic implementation of Storable
generic-trie library and program: A map, where the keys may be complex structured data.
generic-type-asserts library and test: Structural assertions on generic type representations.
generic-type-functions library: Familiar functions lifted to type-level functions on generic types
generic-xmlpickler library and test: Generic generation of HXT XmlPickler instances using GHC Generics
generics-sop-lens library: Lenses for types in generics-sop
genericserialize library: Serialization library using Data.Generics
genvalidity-typed-uuid library, test and benchmark: Generators for Phantom-Typed version of UUID
geo-uk library: High precision conversion between GPS and UK Grid
geohash library: Geohash latitudes and longitudes.
geojson library and test: A thin GeoJSON Layer above the aeson library
geojson-types library: GeoJSON data types including JSON/BSON conversion.
ghc-compact library: In memory storage of deeply evaluated data structure
ghc-symbol library and test: Symbol on term level
ghci-hexcalc library and test: GHCi as a Hex Calculator interactive
ghcjs-promise library: Bidirectional bidings to javascript's promise.
ghost-buster library and test: Existential type utilites
git-date library and test: Bindings to the date parsing from Git.
git-object library: Git object and its parser
global library: Library enabling unique top-level declarations
global-variables library: Namespaced, global, and top-level mutable variables without unsafePerformIO.
globus library: Globus Data Transfer
gofer-prelude library: The Gofer 2.30 standard prelude
google-dictionary library: Simple interface to the google.com/dictionary API
google-mail-filters library and test: Write GMail filters and output to importable XML
googlepolyline library and test: Google Polyline Encoder/Decoder
gpcsets library: Generalized Pitch Class Sets for Haskell.
gps library and test: For manipulating GPS coordinates and trails.
gps2htmlReport library and program: GPS to HTML Summary Report
gpx-conduit library: Read GPX files using conduits
grapefruit-records library: A record system for Functional Reactive Programming
graph library and test: Class of graphs
graph-core library and test: Fast, memory efficient and persistent graph implementation
graph-utils library: A simple wrapper & quasi quoter for fgl.
graphbuilder library and test: A declarative, monadic graph construction language for small graphs
graphene library: A minimal Graph Theory library.
graphql-utils library: GraphQL Utils
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
graphwiz library, program and test: Monadic DOT graph builder DSL
greplicate library and test: Generalised replicate functions
greskell library and tests: Haskell binding for Gremlin graph query language
greskell-core library and test: Haskell binding for Gremlin graph query language - core data types and tools
groan library and test: ugh, another growable vector library?
group-with library and test: Classify objects by key-generating function, like SQL GROUP BY
groupBy library, test and benchmark: Replacement definition of Data.List.GroupBy
grouped-list library, tests and benchmark: Grouped lists. Equal consecutive elements are grouped.
groupoid library: A Groupoid class
groups library: Groups
grow-vector library and test: Mutable vector with efficient appends
growable-vector library and test: A contiguous growable array type.
gstorable library and test: Generic implementation of Storable
gtfs library: The General Transit Feed Specification format
gtfs-realtime library: GTFS RealTime protobafs library (autogenerated from .proto file)
gtvm-hs library and program: Various tools for reversing and using assets from Golden Time: Vivid Memories.
hadoop-formats library and test: Read/write file formats commonly used by Hadoop.
hadoop-rpc library and test: Use the Hadoop RPC interface from Haskell.
hadoop-tools program and test: Fast command line tools for working with Hadoop.
HaLeX library and program: HaLeX enables modelling, manipulation and visualization of regular languages
halfsplit library: A library to provide special kind of two-column output for Phladiprelio.
halves library and test: Split or combine data structures to and from halves, quarters, eighths
handa-data library: ...
handa-geodata library and programs: Geographic and Geometric Data
happy-arbitrary library and test: Token list generator for arbitrary Happy grammars.
HappyTree library and test: Type Safe and End to End Decision Tree
har library: HAR spec in Haskell
has library and program: Entity based records
has-th library: Template Haskell function for Has records.
HasCacBDD library and test: Haskell bindings for CacBDD
hash library and test: Hashing tools
hash-tree library and test: Merkle Hash Tree
hashable library and tests: A class for types that can be converted to a hash value
hashable-accelerate library: A class for types which can be converted into a hash value
hashable-extras library and test: Higher-rank Hashable
hashable-generics library, test and benchmark: Automatically generates Hashable instances with GHC.Generics.
hashable-orphans library: Provides instances missing from Hashable.
hashable-time library and test: Hashable instances for Data.Time
hashabler library, test and benchmarks: Principled, portable & extensible hashing of data and types, ...
hashes library, test and benchmark: Hash functions
hashflare library: A library for working with HashFlare.io contracts and hashrates
hashmap library: Persistent containers Map and Set based on hashing.
hashmap-io library: A Hashmap on io monad.
hashring library and test: Efficient consistent hashing.
hashtables library and test: Mutable hash tables in the ST monad
hashtables-plus library and benchmark: Extensions for a "hashtables" library
haskell-modbus library and test: A cereal-based parser for the Modbus protocol
haskell-qrencode library: Haskell bindings for libqrencode.
haskus-utils-data library and test: Haskus data utility modules
haxparse library and program: Readable HaxBall replays
Hayoo programs: The Hayoo! search engine for Haskell API search on hackage
hbcd library: Packed binary-coded decimal (BCD) serialization
hBDD library: An abstraction layer for BDD libraries
hBDD-CMUBDD library: An FFI binding to CMU/Long's BDD library
hBDD-CUDD library: An FFI binding to the CUDD library
hblock library: A mutable vector that provides indexation on the datatype fields it stores
hdf5-lite library and test: High-level bindings to the HDF5 "lite" interface
hDFA library: A simple library for representing and minimising DFAs.
hebrew-time library and test: Hebrew dates and prayer times.
heckin library and test: Oh heck, it's a heckin' case conversion library.
hedgehog-generic library: GHC Generics automatically derived hedgehog generators
hedn library and test: EDN parsing and encoding
hedn-functor library: Base functor for EDN AST
hegg library, test and benchmark: Fast equality saturation in Haskell
heptapod library, test and benchmark: Generate UUIDv7 values.
here library and test: Here docs & interpolated strings via quasiquotation
hetero-dict library and benchmark: Fast heterogeneous data structures
hetero-map library: Pure heterogeneous maps.
hetero-parameter-list library and test: hetero list with parameter list
hetero-parameter-list-with-typelevel-tools library and test: Hetero parameter list with type level tools
hetero-zip library: Zip lists with Traversables
heterogeneous-comparison library: Comparison of distinctly typed values with evidence capture
heterogeneous-list-literals library and test: Allows the use of tuples as literals for Heterogeneous collections
heterolist library and test: A heterogeneous list type
hex library: Convert strings into hexadecimal and back.
HExcel library: Create Excel files with Haskell
hexpat-pickle-generic library and test: Picklers for de/serialising Generic data types to and from XML
hexquote library: Hexadecimal ByteString literals, with placeholders that bind variables
hexstring library and test: Fast and safe representation of a hex string
HFrequencyQueue library: A Queue with a random (weighted) pick function
hgeos library and test: Simple Haskell bindings to GEOS C API
hgraph library, tests and benchmarks: Tools for working on (di)graphs.
hgrib library, program and test: Unofficial bindings for GRIB API
hic library, program and test: High Integrity Cimple (Hic) inference and lowering
hierarchy library and test: Predicated traversal of generated trees
higgledy library and tests: Partial types as a type constructor.
HiggsSet library: A multi-index set with advanced query capabilites
hinze-streams library: Streams and Unique Fixed Points
hips program: an IPS patcher
histogram-fill library and benchmark: Library for histograms creation.
histogram-fill-binary library: Binary instances for histogram-fill package
histogram-fill-cereal library: Binary instances for histogram-fill package
histogram-simple library: Simple Data.Map-based histogram
hjcase library: Jcase library for Haskell
hjsonpointer library and test: JSON Pointer library
hjsonschema library and tests: JSON Schema library
hkd-delta library: Definition of "Delta structures" for higher kinded data.
hkd-lens library: Generic lens/prism/traversal-kinded data.
HList library and tests: Heterogeneous lists
hlist library: Heterogeneous list
HMap library: Fast heterogeneous maps and unconstrained typeable-like functionality.
hmatrix-csv library: CSV encoding and decoding for hmatrix.
hmatrix-repa library: Adaptors for interoperability between hmatrix and repa
hmemdb library: In-memory relational database
hmpfr library: Haskell binding to the MPFR library
hnetcdf library, programs and tests: Haskell NetCDF library
hnix library, program, test and benchmark: Haskell implementation of the Nix language
hocon library and test: Small library for typesafe's configuration specification
hodatime library, tests and benchmark: A fully featured date/time library based on Nodatime
hole library: Higher kinded type removal
holmes library and tests: Tools and combinators for solving constraint problems.
Holumbus-Searchengine library: A search and indexing engine.
homotuple library: Homotuple, all whose elements are the same type
hoodle-types library: Data types for programs for hoodle file format
hOpenPGP library, test and benchmark: native Haskell implementation of OpenPGP (RFC9580)
hopenpgp-tools programs: hOpenPGP-based command-line tools
horizon library: Sunrise and sunset UTC approximations from latitude and longitude coordinates
hpc-codecov library, program and test: Generate reports from hpc data
hreader-lens library: Optics for hreader package
hs-blake2 library, test and benchmark: A cryptohash-inspired library for blake2
hs-excelx library: ...
hs-GeoIP library: Haskell bindings to the MaxMind GeoIPCity database via the C library
hs-multiaddr library and test: Multiaddr library
hs-openmoji-data library and program: The OpenMoji emoji dataset
hs-php-session library: PHP session and values serialization
hs-pkg-config library: Create pkg-config configuration files
hs-swisstable-hashtables-class library and test: Data.HashTable.Class instance definition for Data.HashTable.ST.Swiss
hschema library: Describe schemas for your Haskell data types.
hschema-aeson library and test: Describe schemas for your Haskell data types.
hschema-prettyprinter library: Describe schemas for your Haskell data types.
hschema-quickcheck library: Describe schemas for your Haskell data types.
hsec-core library and test: Core package representing Haskell advisories
hsec-sync library, program and test: Synchronize with the Haskell security advisory database
hsec-tools library, program and test: Tools for working with the Haskell security advisory database
HSet library: Faux heterogeneous sets
hset library and test: Primitive list with elements of unique types.
hsini library and test: ini configuration files
HsJudy library: Judy bindings, and some nice APIs
hsmrc library: Library for Marc21 bibliographic records
hsmrc-marc8 library: MARC-8 charset decoding library for hsmrc
hsndfile library: Haskell bindings for libsndfile
hsndfile-storablevector library: Haskell bindings for libsndfile (Data.StorableVector interface)
hsndfile-vector library: Haskell bindings for libsndfile (Data.Vector interface)
htlset library: Heterogenous Set
htoml library, test and benchmark: Parser for TOML files
htoml-megaparsec library, test and benchmark: Parser for TOML files
htoml-parse library: Parse TOML values produced by htoml-megaparsec package.
htree library and test: a library to build and work with heterogeneous, type level indexed rose trees
htssets library: Heterogenous Sets
http-exchange library and test: Perform HTTP Requests
http-interchange library and test: Types and serialization for HTTP
https-everywhere-rules library and test: High-level access to HTTPS Everywhere rulesets.
https-everywhere-rules-raw library: Low-level (i.e. XML) access to HTTPS Everywhere rulesets.
httpspec library: Specification of HTTP request/response generators and parsers
huffman library: Pure Haskell implementation of the Huffman encoding algorithm
HulkImport library, program and test: Easily bulk import CSV data to SQL Server
hunt-searchengine library and tests: A search and indexing engine.
hunt-server program: A search and indexing engine server.
hvect library and test: Simple strict heterogeneous lists
hw-aeson library and tests: Convenience functions for Aeson
hw-all library: Demo library
hw-balancedparens library, program, tests and benchmark: Balanced parentheses
hw-bits library, tests and benchmark: Bit manipulation
hw-conduit library, tests and benchmark: Conduits for tokenizing streams.
hw-conduit-merges library and test: Additional merges and joins for Conduit
hw-dump library, program, tests and benchmark: File Dump
hw-eliasfano library, program, tests and benchmark: Elias-Fano
hw-excess library, tests and benchmark: Excess
hw-int library and tests: Additional facilities for Integers
hw-json library, program, tests and benchmark: Memory efficient JSON parser
hw-json-demo library: Memory efficient JSON parser
hw-json-lens library, tests and benchmark: Lens for hw-json
hw-json-simd library, program and tests: SIMD-based JSON semi-indexer
hw-json-simple-cursor library, program, tests and benchmark: Memory efficient JSON parser
hw-json-standard-cursor library, program, tests and benchmark: Memory efficient JSON parser
hw-lazy library and tests: Combinators for lazy IO
hw-mquery library, program and tests: Monadic query DSL
hw-packed-vector library, program, tests and benchmark: Packed Vector
hw-parser library and tests: Simple parser support
hw-playground-linear library and test: Primitive functions and data types
hw-prim library, tests and benchmark: Primitive functions and data types
hw-prim-bits library, program, tests and benchmark: Primitive support for bit manipulation
hw-rankselect library, program, tests and benchmark: Rank-select
hw-rankselect-base library, tests and benchmark: Rank-select base
hw-simd library, tests and benchmark: SIMD library
hw-simd-cli library, program and test: SIMD library
hw-streams library, tests and benchmark: Primitive functions and data types
hw-string-parse library and tests: String parser
hw-succinct library: Succint datastructures
hw-uri library, program and test: Supports IO on URIs
hw-vector library and test: Vector type with convenient typeclass instances
hw-xml library, program, tests and benchmark: XML parser based on succinct data structures.
hwsl2 library, test and benchmark: Hashing with SL2
hwsl2-bytevector library: A hashed byte-vector based on algebraic hashes and finger trees
hwsl2-reducers library: Semigroup and Reducer instances for Data.Hash.SL2
hybrid-vectors library: Hybrid vectors e.g. Mixed Boxed/Unboxed vectors
hydra library: Hydra: graphs are programs, and programs are graphs (umbrella package)
hydra-bench library: Hydra synthetic inference-benchmark workloads
hydra-build library: Hydra's build system, promoted into Hydra
hydra-coq library: Hydra's Coq coder: emit Coq/Gallina source from Hydra modules
hydra-ext library: Hydra extensions: additional coders and schema integrations
hydra-go library: Hydra's Go coder: emit Go source from Hydra modules
hydra-haskell library: Hydra's Haskell coder: emit Haskell source from Hydra modules
hydra-java library: Hydra's Java coder: emit Java source from Hydra modules
hydra-jvm library: Shared JVM support for Hydra's Java, Scala, and Clojure coders
hydra-kernel library: The Hydra kernel: core types, terms, inference, and DSL runtime
hydra-lisp library: Hydra's Lisp coder: emit Clojure/Scheme/Common-Lisp/Emacs-Lisp source
hydra-pg library: Hydra's property-graph (TinkerPop/Gremlin) model and coder support
hydra-python library: Hydra's Python coder: emit Python source from Hydra modules
hydra-rdf library: Hydra's RDF/SHACL/OWL model and coder support
hydra-scala library: Hydra's Scala coder: emit Scala source from Hydra modules
hydra-typescript library: Hydra's TypeScript coder: emit TypeScript source from Hydra modules
hydra-wasm library: Hydra's WebAssembly coder: emit Wasm from Hydra modules
id library and test: Id (f a) and BiId (p (s a) (t b)) data types
idempotent library and test: Idempotent monoids
identifiers library, test and benchmarks: Numeric identifiers for values.
idna library: Implements IDNA (RFC 3490).
IDynamic library: Indexable, serializable form of Data.Dynamic
ieee754-parser library
implicit-params library: Named and unnamed implicit parameters with defaults.
impossible library: ...
incremental library and test: incremental update library
incremental-computing library, test and benchmark: Incremental computing
incremental-maps library, test and benchmark: Package for doing incremental computations on maps
increments library and test: type classes for incremental updates to data
indexation library: Tools for entity indexation
indexed-list-literals library and test: Type safe indexed list literals
indexed-profunctors library: Utilities for indexed profunctors
indexed-state library: Indexed State
indexed-traversable library: FunctorWithIndex, FoldableWithIndex, TraversableWithIndex
indexed-traversable-instances library and tests: More instances of FunctorWithIndex, FoldableWithIndex, TraversableWithIndex
IndexedList library: ...
indices library, test and benchmark: Multi-dimensional statically bounded indices.
infinite-list library and tests: Infinite lists
infinite-search library: Exhaustively searchable infinite sets.
inflist library and test: An infinite list type and operations thereon.
ini library and test: Configuration files in the INI format.
ini-qq library and test: Quasiquoter for INI
initialize library: Initialization and Deinitialization of 'Storable' values.
inj library: A class for injective (one-to-one) functions
inj-base library: 'Inj' instances for 'base'
injections library and test: Canonical categorical conversions (injections and projections)
instrument library and test: Easy stats/metrics instrumentation for Haskell programs
int-cast library and test: Checked conversions between integral types
int-conv library and test: Direct conversion functions between Ints and Words
int-interval-map library and test: Interval map
int-supply library: A simple, efficient supply of integers using atomic fetch-and-add.
integer-conversion library, test and benchmark: Conversion from strings to Integer
intermediate-structures library: ...
intern library: Efficient hash-consing for arbitrary data types
InternedData library, test and benchmark: Data interning (with compact regions where possible)
interpolate library and test: String interpolation done right
interpolatedstring-perl6 library: QuasiQuoter for Perl6-style multi-line interpolated strings
interpolatedstring-qq library: QuasiQuoter for Ruby-style multi-line interpolated strings.
interpolatedstring-qq-mwotton library: DO NOT USE THIS. interpolatedstring-qq works now.
interpolatedstring-qq2 library and test: QuasiQuoter for multi-line interpolated strings
Interpolation library: Multiline strings, interpolation and templating.
Interpolation-maxs library: Multiline strings, interpolation and templating.
interpolator library and test: Runtime interpolation of environment variables in records using profunctors
interval-functor library and test: Intervals of functors.
interval-tree-clock library and test: Interval Tree Clocks
IntervalMap library, tests and benchmarks: Containers for intervals, with efficient search.
intset library, tests and benchmark: Pure, mergeable, succinct Int sets.
invariant library and test: Haskell98 invariant functors
invertible library and test: bidirectional arrows, bijective functions, and invariant functors
invertible-hlist library: invertible functions and instances for HList
involutive-semigroups library: Semigroups with involution.
io-embed library and test: Use Template Haskell to embed the result of an IO computation.
io-storage library: A key-value store in the IO monad.
io-streams library and test: Simple, composable, and easy-to-use stream I/O
io-string-like library: Classes to handle Prelude style IO functions for different datatypes
ioctl library: Type-safe I/O control package
IORefCAS library and test: Atomic compare and swap for IORefs and STRefs.
ipld-cid library and test: IPLD Content-IDentifiers <https://github.com/ipld/cid>
irc library and test: A small library for parsing IRC messages.
irc-fun-messages library: Types and functions for working with the IRC protocol.
irc-fun-types library: Common types for IRC related packages
ireal library: Real numbers and intervals with relatively efficient exact arithmetic.
is library and test: Generic pattern predicates
isbn library and test: ISBN Validation and Manipulation
isevaluated library: Check whether a value has been evaluated
IsNull library and test: A typeclass to determine if a given value is null.
iso3166-country-codes library: A datatype for ISO 3166 country codes
iso639 library: ISO-639-1 language codes
iso8583-bitmaps library: Parse and merge ISO 8583-style bitmaps
iso8601-duration library and test: Types and parser for ISO8601 durations
it-has library and test: Automatically derivable Has instances.
iteratee library, test and benchmark: Iteratee-based I/O
iteratee-compress library: Enumeratees for compressing and decompressing streams
iteratee-mtl library and program: Iteratee-based I/O
iteratee-parsec library: Package allowing parsec parser initeratee
iteratee-stm library: Concurrent iteratees using STM
iterIO library: Iteratee-based IO with pipe operators
ix-shapable library: Reshape multi-dimensional arrays.
ixset-typed-cassava library: cassava encoding and decoding via ixset-typed
jacinda library, program, test and benchmark: Functional, expression-oriented data processing language
javaclass library and test: Java class files
javelin library, program, test and benchmarks: Labeled one-dimensional arrays
javelin-frames library, test and benchmark: Type-safe data frames based on higher-kinded types.
javelin-io library and test: IO operations for the `javelin` package
Jdh library: A Json implementation for Haskell, with JavaScript Values and Encoding/Decoding
jinquantities library, program and tests: Unit conversion and manipulation library.
joinlist library: Join list - symmetric list type
joint library: Trying to compose non-composable
json-alt library: Union 'alternative' or Either that has untagged JSON encoding.
json-autotype library, program and tests: Automatic type declaration for JSON input data
json-extra library: Utility functions to extend Aeson
json-incremental-decoder library and test: Incremental JSON parser with early termination and a declarative DSL
json-pointer library: JSON Pointer parsing and interpretation utilities
json-query library and test: Kitchen sink for querying JSON
json-schema library and test: Types and type classes for defining JSON schemas.
json-state library: Keep program state in JSON files.
json-syntax library, test and benchmark: High-performance JSON parser and encoder
json-to-type library, program and tests: Automatic type declaration for JSON input data
json-togo library: Effectful parsing of JSON documents
json-tokens library, test and benchmark: Tokenize JSON
json2 library: Library provides support for JSON.
json2-types library: Defined JSON data types and function for renders JSON to string.
jsons-to-schema library, program and test: JSON to JSON Schema
jsonschema library and test: JSON Schema derivation and validation
jsonschema-gen library and test: JSON Schema generator from Algebraic data type
judy library and test: Fast, scalable, mutable dynamic arrays, maps and hashes
jump library and tests: Nothing to see here, move along
JuPyTer-notebook library and program: JuPyTer notebook parser
kafka library: TBA
kafka-interchange library and test: Serialization for kafka wire protocol
kanji library, test and benchmark: Perform 漢字検定 (Japan Kanji Aptitude Test) level analysis on Japanese Kanji
karakuri library: Good stateful automata
katip library, test and benchmark: A structured logging framework.
katip-datadog library and test: Datadog scribe for the Katip logging framework
katip-effectful library and test: Katip integration for Effectful
katip-elasticsearch library, test and benchmark: ElasticSearch scribe for the Katip logging framework.
katip-logzio library and test: Logz.IO scribe for the Katip logging framework
katydid library, program, test and benchmark: A haskell implementation of Katydid
kd-tree library: A simple k-d tree implementation
kdt library, tests and benchmark: Fast and flexible k-d trees for various types of point queries.
kewar library, program and test: CLI and library to generate QR codes.
keyed library: Generic indexing for many data structures
keyed-vals library: An abstract Handle for accessing collections in stores like Redis
keyed-vals-hspec-tests library: Validate a keyed-vals Handle
keyed-vals-mem library and test: Implements a keyed-vals Handle using in-process memory
keyed-vals-redis library and test: Access Redis using a keyed-vals Handle
keyword-args library, program and test: Extract data from a keyword-args config file format
kicad-data library and test: Parser and writer for KiCad files.
kickchan library and test: Kick Channels: bounded channels with non-blocking writes
kill-bool library and test: Boolean strong typing
kind-apply library: Utilities to work with lists of types
kind-generics library: Generic programming in GHC style for arbitrary kinds and GADTs.
kind-generics-deriving library: Generic programming in GHC style for arbitrary kinds and GADTs.
kind-generics-th library and test: Template Haskell support for generating `GenericK` instances
kioku-api library and test: Reusable agent memory wire types
kioku-cli library, program and test: kioku command-line interface
kioku-core library and test: Reusable agent memory runtime
kleene-list library and test: A list type based on the Kleene star and plus.
kleisli library, test and benchmark: Kleisli-like newtypes with different type parameter orderings
kontra-config library: JSON config file parsing based on unjson
lambda-sampler library and test: Boltzmann sampler utilities for lambda calculus.
language-conf library, programs and test: Conf parsers and pretty-printers for the Haskell programming language.
language-hcl library, test and benchmark: HCL parsers and pretty-printers for the Haskell programming language.
laop library, test and benchmark: Matrix programming library
largeword library and test: Provides Word128, ...
layered-state library and benchmark: Control structure similar to Control.Monad.State, ...
layouting library: ...
lazify library and tests: A simple utility for lazy record matching
lazy-hash library: Identifiers for not-yet-computed values
lazy-hash-cache library: Storing computed values for re-use when the same program runs again.
lazy-priority-queue library, program and test: Lazy-Spined Monadic Priority Queues
lazyarray library: Efficient implementation of lazy monolithic arrays (lazy in indexes).
lazyset library, tests and benchmark: Set and Map from lazy/infinite lists.
ldtk-types library and test: Datatypes and Aeson instances for parsing LDtk
lens library, tests and benchmarks: Lenses, Folds and Traversals
lens-accelerate library: Instances to mix lens with Accelerate
lens-action library: Monadic Getters and Folds
lens-aeson library: Law-abiding lenses for aeson
lens-datetime library: Lenses for Data.Time.* types
lens-family library: Lens Families
lens-family-core library: Haskell 2022 Lens Families
lens-family-th library and test: Generate lens-family style lenses
lens-indexed-plated library: Indexed version of Plated.
lens-labels library: Integration of lenses with OverloadedLabels.
lens-properties library: QuickCheck properties for lens
lens-th-rewrite library and programs: Rewrites Template Haskell splices using the API
lens-time library: lens for Data.Time
lens-utils library: Collection of missing lens utilities.
lens-witherable library: lens-compatible tools for working with witherable
lenses library: Simple Functional Lenses
lensref library and test: References which can be joined and on which lenses can be applied
lenz library: Van Laarhoven lenses
lenz-mtl library: mtl operations with Van Laarhoven lenses
lenz-template library: Van Laarhoven lens templates
lfudacaching library, program, test and benchmark: Pure LFUDA, GDSF, and LFU cache implementations
lhae program: Simple spreadsheet program
lhe library: Parser and writer for Les-Houches event files
libasterix library and test: Asterix data processing library
libBF library and test: A binding to the libBF library.
libphonenumber library and tests: Parsing, formatting, and validating international phone numbers
librarian library, program and test: Move/rename according a set of rules
librdkafka library: TBA
libroman library, program and test: Use Roman Numerals as a Numeric Datatype (sort of)
Limit library: Wrapper for data that can be unbounded
line-indexed-cursor library, test and benchmark: Line-indexed file reader.
line-size program: Display the number of bytes of each line
linear-maps library and programs: Finite maps for linear use
lingo library, program and test: File extension based programming language detection
link-relations library: Use web link relation types (RFC 5988) in Haskell
linkedhashmap library, test and benchmark: Persistent LinkedHashMap data structure
list-fusion-probe library and test: testing list fusion for success
list-grouping library: Functions for grouping a list into sublists
list-shuffle library, test and benchmark: List shuffling and sampling
list-singleton library: Easily and clearly create lists with only one element in them.
list-tries library and test: Tries and Patricia tries: finite sets and maps for list keys
list-tuple library and test: List-like operations for tuples
list-zip-def library: Provides zips with default values.
list-zipper library and test: A list zipper
list1 library: Helpers for working with NonEmpty lists.
lists library: Functions for dealing with lists
lists-flines library: Additional data and structures to some 'String'-related lists.
listsafe library: Safe wrappers for partial list functions, supporting MonadThrow.
ListZipper library: Simple zipper for lists
literally library: Type-safe conversion of type literals into runtime values.
literals library: Non-overloaded functions for concrete literals.
llrbtree library: Purely functional sets and heaps
llvm-base-types library: The base types for a mostly pure Haskell LLVM analysis library
llvm-data-interop library: A low-level data interoperability binding for LLVM
lockfree-queue library and test: Michael and Scott lock-free queues.
log-utils programs: Utils for working with logs
logfloat library: Log-domain floating point numbers
logical-constraints library: Simple logical constraints 'syntax-sugar' writing library.
longboi library: Dependently-typed linked list implementation
lookup-tables library and test: Statically generate lookup tables using Template Haskell.
lr-acts library, test and benchmark: Left and right actions, semidirect products and torsors
lrucache library: a simple, pure LRU cache
lrucaching-haxl library: Combine lrucaching and haxl.
LTree library: Tree with only leaves carrying the data.
lub library: information operators: least upper bound (lub) and greatest lower bound (glb)
luhn library and test: An implementation of Luhn's check digit algorithm.
lz4-bytes library and test: Bindings to LZ4
machines-attoparsec library and test: Parse machines streams with attoparsec parsers.
machines-encoding library: Transcode encodings with machines.
macho library: Parser for Mach-O object format.
magma library and test: magma is an algebraic structure.
make-monofoldable-foldable library: Make a MonoFoldable type into an ordinary Foldable type.
Map library and test: Class of key-value maps
Mapping library: Mapping
markov library: Simple interpreter for Markov's normal algorithms
markup library: Abstraction for HTML-embedded content
mason library: Fast and extensible bytestring builder
massiv library and test: Massiv (Массив) is an Array Library.
massiv-io library, tests and benchmark: Import/export of Image files into massiv Arrays
massiv-test library and tests: Library that contains generators, properties and tests for Massiv Array Library.
math-interpolate library: Class for interpolation of values
math-metric library: Typeclass for metric spaces
matrices library, test and benchmark: native matrix based on vector
maybe-justify library and test: Simple higher order function for Maybe
mbox library: Read and write standard mailbox files.
md5 library and test: MD5 Hash
means library: calculate varieties of mean/average using semigroup.
Measure library: A library for units of measurement
mech library: mecha are the most complex composite machines known to humanity, lets build them well!
Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
medea library and tests: A schema language for JSON.
median-stream library and test: Constant-time queries for the median of a stream of numeric data.
meep library and tests: A silly container
megastore library: Bulk image or strict bytestring storage
melf library, programs and tests: An Elf parser
memis program: Memis Efficient Manual Image Sorting
memo-io tests: Memoize and global IO utilities.
memoize library and tests: A memoization library
memorable-bits library, program, test and benchmark: Generate human memorable strings from binary data.
MemoTrie library and program: Trie-based memo functions
merge library and test: A functor for consistent merging of information
merkle-log library, test and benchmark: Merkle Tree Logs
messagepack library and test: Serialize instance for Message Pack Object
meta-misc library: Utility library providing miscellaneous meta-programming utilities.
metadata library: metadata library for semantic web
metar library and program: METAR from BOM (Australia) with NOAA fallback
metar-http library and program: HTTP for METAR
metric library and test: Metric spaces.
metrics library and test: High-performance application metric tracking
mgeneric library: Generics with multiple parameters
microecta library, test and benchmark: Small equality-constrained tree automata core
microlens library: A tiny lens library with no dependencies
microlens-contra library: True folds and getters for microlens
microlens-each library: 'each' for microlens
microlens-ghc library: microlens + array, bytestring, containers, transformers
microlens-mtl library: microlens support for Reader/Writer/State from mtl
microlens-platform library: microlens + all batteries included (best for apps)
microlens-pro library: Prisms and isomorphisms for microlens
microlens-th library and test: Automatic generation of record lenses for microlens
minecraft library: TBA
mini-egison library, program and test: Template Haskell Implementation of Egison Pattern Matching
minilens library: A minimalistic lens library, providing only the simplest, most basic lens functionality.
minlen library: Express the minimum length of a container in its type
minmax library: ...
minst-idx library and test: Read and write IDX data that is used in e.g. the MINST database.
mischief-ecs library, program, test and benchmarks: An opinionated archetype ECS engine built in Haskell.
mlist library: Monadic List alternative to lazy I/O
mmsyn2-array library: A library that can be used for multiple Ord a => a -> b transformations.
mmsyn2-array-ukrainian-data library: Data that is taken from the ukrainian-phonetics-basic-array for optimization.
mmsyn2-hashable library: A library that can be used for multiple Hashable a => a -> b transformations.
mmsyn5 library: Various additional operations on lists (some with intermediate Monads)
mmzk-env library, programs and test: Read environment variables into a user-defined data type
mmzk-typeid library and test: A TypeID and UUIDv7 implementation for Haskell
mnist-idx library and test: Read and write IDX data that is used in e.g. the MNIST database.
mnist-idx-conduit library and test: conduit utilities for MNIST IDX files
model library and tests: Derive a model of a data type using Generics
monad-branch library: Monadic abstraction for computations that can be branched and run independently.
monad-primitive library: Type class for monad transformers stack with pirimitive base monad.
monad-state library: Utility library for monads, particularly those involving state.
monad-statevar library and test: Concise, overloaded accessors for IORef, STRef, TVar
monad-supply library: Stateful supply monad
mono-foldable library: Folds for monomorphic containers
mono-traversable library, test and benchmark: Type classes for mapping, folding, and traversing monomorphic containers
mono-traversable-instances library: Extra typeclass instances for mono-traversable
mono-traversable-keys library: Type-classes for interacting with monomorphic containers with a key
mono-traversable-wrapper library: Wrapper providing Foldable instance for MonoFoldables.
monoid library: Monoid type classes, designed in modular way, ...
monoid-extras library and benchmark: Various extra monoid-related definitions and utilities
monoid-insertleft library: Some extension to the Foldable and Monoid classes.
monoid-map library: A monoidal map with the right group instance
monoid-record library: Support for modifying record fields of monoidal type
monoid-subclasses library and test: Subclasses of Monoid
monoid-transformer library: Monoid counterparts to some ubiquitous monad transformers
monoidal-containers library: Containers with monoidal accumulation
monoidplus library: Extra classes/functions about monoids
monoids library: Deprecated: Use 'reducers'
monomorphic library: Library to convert polymorphic datatypes to/from its monomorphic represetation
months library: MonthName
monus library and test: a 'Monus' is a commutative monoid that allows a notion of substraction.
morphisms library: It's all about functions
morphisms-functors library: Functors, theirs compositions and transformations
morphisms-functors-inventory library: Inventory is state and store
morphisms-objects library: Algebraic structures
mrm library: Modular Refiable Matching, first-class matches
msgpack library and test: A Haskell implementation of MessagePack
msgpack-aeson library and test: Aeson adapter for MessagePack
msgpack-arbitrary library and test: A Haskell implementation of MessagePack.
msgpack-binary library, programs, test and benchmark: A Haskell implementation of MessagePack
msgpack-persist library, program, test and benchmark: A Haskell implementation of MessagePack
msgpack-rpc-conduit library and test: A MessagePack-RPC Implementation
msgpack-testsuite library and test: A Haskell implementation of MessagePack
msgpack-types library and test: A Haskell implementation of MessagePack.
MSQueue library: Michael-Scott queue.
mt19937 library: Standard 32-bit Mersenne Twister PRNG, in pure Haskell
mtree library: Tree with Meta and Content parameters
multi-trie library and test: Trie of sets, as a model for compound names having multiple values
multibase library and test: Self-identifying base encodings, ...
multicurryable library and tests: Uncurry functions with multiple arguments.
multihash library and program: Multihash library and CLI executable
multihash-cryptonite library and tests: Self-identifying hashes, implementation of <https://github.com/multiformats/multihash>
multihashmap library: hashmap from keys to hashsets
multipart-names library and test: Handling of multipart names in various casing styles
multirec-binary library: Generic Data.Binary instances using MultiRec.
multivector library and test: Vectors of packed tuples
murmur-hash library: MurmurHash2 implementation for Haskell.
murmur3 library and test: Pure Haskell implementation of the MurmurHash3 x86 algorithm
murmurhash3 library: 32-bit non-cryptographic hashing
mutable library and benchmark: Automatic piecewise-mutable references for your types
mutable-containers library, test and benchmarks: Abstactions and concrete implementations of mutable containers
mutable-fenwick library and test: Mutable Fenwick trees
mutable-iter library: iteratees based upon mutable buffers
mutable-lens library, tests and benchmark: Interoperate mutable references with regular lens
mwc-random-accelerate library and benchmark: Generate Accelerate arrays filled with high quality pseudorandom numbers
mx-state-codes library and test: ISO 3166-2:MX State Codes and Names
MyPrimes library, program and benchmark: Generate all primes
n-ary-functor library and test: An n-ary version of Functor
nagios-perfdata library and test: Parse Nagios performance data.
named-binary-tag library and test: NBT (named binary tag) serialization and deserialization.
named-records library: Flexible records with named fields.
named-sop library and test: Dependently-typed sums and products, tagged by field name
named-text library and test: A parameterized named text type and associated functionality.
names library: Type level names.
namespace library and test: A Generic Haskell library for managing namespaces
NanoID library and program: NanoID generator
nat library: Lazy binary natural numbers
natural library, test and benchmark: Natural number
natural-number library: Natural numbers tagged with a type-level representation of the number.
natural-numbers library: Natural numbers
naturals library: Constructors and related functions for natural numbers
nauty-parser library and tests: Parse/encode graph6, digraph6 and sparse6 formats (nauty).
nbparts library, program and test: Unpack a Jupyter notebook into its sources, metadata and outputs
nbt library and test: A parser/serializer for Minecraft's Named Binary Tag (NBT) data format.
ndjson-conduit library: Conduit-based parsing and serialization for newline delimited JSON.
neither library: Provide versions of Either with good monad and applicative instances. (deprecated)
neither-data library: The Neither datatype
neononempty library and test: NonEmpty lists that look [more, like, this]
nested-sequence library and test: List-like data structures with O(log(n)) random access
NestedFunctor library: Nested composition of functors with a type index tracking nesting.
nestedmap library and test: A library for nested maps
nestedtext library and test: NestedText: A Human Friendly Data Format
network-address library, program and test: IP data structures and textual representation
network-conduit library: Stream socket data using conduits. (deprecated)
network-data library: Library for network data structures and their serialization.
network-enumerator library: Enumerators for network sockets
network-msgpack-rpc library and test: A MessagePack-RPC Implementation
network-stream library: ByteString and Text streams for networking
newbase60 library and test: Encodes and decodes numbers using Tantek Çelik's New Base 60 number system.
NewBinary library: A binary I/O library
newtype-zoo library: Newtype Wrapper Zoo
nextstep-plist library: NextStep style plist parser and printer
nf library: NF data type to statically enforce normal form
ngrams-loader library and program: Ngrams loader based on http://www.ngrams.info format
niagra library and test: High performance CSS EDSL
NineP library: 9P2000 in pure Haskell
NMap library: A transparent nested Map structure
no-value library: A type class for choosing sentinel-like values
non-empty library and test: List-like structures with static restrictions on the number of elements
non-empty-sequence library: Non-empty sequence
non-empty-text library and tests: Non empty Data.Text type
non-empty-zipper library and test: The Zipper for NonEmpty
NonEmpty library: Library providing a non-empty list datatype, and total functions operating on it
nonempty-alternative library: NonEmpty for Alternative types
nonempty-lift library and test: nonempty structure
nonempty-vector library and test: Non-empty vectors
nonempty-wrapper library and test: Create NonEmpty version of any container
nonempty-wrapper-aeson library and test: aeson instances for 'NonEmpty'
nonempty-wrapper-quickcheck library: QuickCheck instance for 'NonEmpty'
nonempty-wrapper-text library: 'NonEmpty' wrappers for text
nonempty-zipper library and test: A non-empty comonadic list zipper
NonEmptyList library: A list with a length of at least one.
normalization-insensitive library, test and benchmark: Normalization insensitive string comparison
notzero library: A data type for representing numeric values, except zero.
ntype library: N-ary sum/product types
num-non-negative library: Non-negative numbers
number-length library, test and benchmark: Number of digits in a number in decimal and hexadecimal representation.
numbered-semigroups library: A sequence of semigroups, for composing stuff in multiple spatial directions.
numbering library: Combinators for creating bijections from some type to the natural numbers.
numbers library and test: Various number types
NumInstances library: Instances of numeric classes for functions and tuples
NumLazyByteString library: Num, Enum, Eq, Integral, Ord, Real, and Show instances for Lazy ByteStrings
Object library: Object oriented programming for haskell using multiparameter typeclasses.
objectid library and test: Rather unique identifier for things that need to be stored
ObjectName library: Explicitly handled object names
observable-sharing library: Simple observable sharing
Octree library, test and benchmark: Simple unbalanced Octree for storing data about 3D points
OddWord library, test and benchmark: Provides a wrapper for deriving word types with fewer bits.
oi library and programs: Library for purely functional lazy interactions with the outer world.
okf-cli library, program and test: Command-line interface for Open Knowledge Format bundles
okf-core library and test: Read, validate, index, and traverse Open Knowledge Format bundles
Omega library and test: Integer sets and relations using Presburger arithmetic
onama library: HTML-parsing primitives for Parsec.
once library and test: memoization for IO actions and functions
one library and test: One
oneOfN library: Anonymous coproduct type
oneormore library: A never-empty list type.
OneTuple library and tests: Singleton Tuple
Only library: The 1-tuple type or single-value "collection"
onpartitions library: partition lenses
oo-prototypes library: Support for OO-like prototypes
open-adt library: Open algebraic data types.
open-adt-tutorial library and program: Open algebraic data type examples.
open-union library and program: Extensible, type-safe unions.
open-witness library and test: open witnesses
OpenAFP library: IBM AFP document format parser and generator
OpenAFP-Utils programs: Assorted utilities to work with AFP data streams
opench-meteo library: A Haskell implementation of the Swiss Meteo Net data API
openexchangerates library: Fetch exchange rates from OpenExchangeRates.org
openpgp library and test: Implementation of the OpenPGP message format
openpgp-asciiarmor library, test and benchmark: OpenPGP (RFC9580) ASCII Armor codec
OptDir library: The OptDir type for representing optimization directions.
optics library, test and benchmarks: Optics as an abstract interface
optics-core library: Optics as an abstract interface: core definitions
optics-extra library: Extra utilities and instances for optics-core
optics-operators library, program and test: A tiny package containing operators missing from the official package.
optics-th library and test: Optics construction using TemplateHaskell
optics-vl library: Utilities for compatibility with van Laarhoven optics
optimal-blocks library, program, test and benchmark: Optimal Block boundary determination for rsync-like behaviours
option library: A strict version of Maybe
optional-args library: Optional function arguments
ord-adhoc library: Creating Ord instances instantly
ord-axiomata library: Axiomata & lemmata for easier use of Data.Type.Ord
order-maintenance library and test: Algorithms for the order maintenance problem with a safe interface
order-statistic-tree library, test and benchmark: Order statistic trees based on weight-balanced trees
ordered-containers library: Set- and Map-like types that remember the order elements were inserted
OrderedBits library, test and benchmark: Efficient ordered (by popcount) enumeration of bits
ordering-util library: Utilities for Orderings
orders library: basic orders
oref library and test: Owned references in the Ownership Monad
org-mode library and test: Parser for Emacs org-mode files.
orgmode library and test: Org Mode library for haskell
orgmode-parse library and test: A collection of Attoparsec combinators for parsing org-mode flavored documents.
origami library and test: An un-SYB framework for transforming heterogenous data through folds
osm-conduit library and test: Parse and operate on OSM data in efficient way
osv library and test: Open Source Vulnerability format
osx-ar library: Parser for OS X static archive format.
overloaded-records library and test: Overloaded Records based on current GHC proposal.
pa-error-tree library: Collect a tree of errors and pretty-print
pa-field-parser library: “Vertical” parsing of values
pa-json library: Our JSON parsers/encoders
pa-label library: Labels, and labelled tuples and enums (GHC >9.2)
pa-prelude library: The Possehl Analytics Prelude
pa-pretty library: Some pretty-printing helpers
pa-run-command library: Helper functions for spawning subprocesses
pack library: Bidirectional fast ByteString packer/unpacker
packed-data library, program, test and benchmarks
packed-dawg library, test and benchmark: Generation and traversal of highly compressed directed acyclic word graphs.
packed-multikey-map library and test: Efficient “spreadsheet table” like maps with multiple marginals
packer library and test: Fast byte serializer and unserializer
packer-messagepack library and test: MessagePack Serialization an Deserialization for Packer
packman library and tests: Serialization library for GHC
packstream library and test: PackStream converter for Neo4j BOLT protocol
pact-time library and test: Time Library for Pact
pager library and program: Open up a pager, like 'less' or 'more'
pagination library and test: Framework-agnostic pagination boilerplate
palette library: Utilities for choosing and creating color schemes.
pandocz library: Lenses for Pandoc
pandora library: A box of patterns and paradigms
pandora-io library: ...
parameterized-data library: Parameterized data library implementing lightweight dependent types
parametric-functor library: A known-parametric Functor typeclass
parse-gcstats library and test: Parse machine-readable GHC GC stats.
parsergen library and test: TH parser generator for splitting bytestring into fixed-width fields
parsestar library and programs: NMR-STAR file format parser.
partial-order library and test: Provides typeclass suitable for types admitting a partial order
partial-records library: Template haskell utilities for constructing records with default values
patch-combinators library: A library for patching functions and data structures
patches-vector library and tests: Patches (diffs) on vectors: composable, mergeable, and invertible.
PathTree library and test: A tree used to merge and maintain paths
pattern-trie library, tests and benchmark: Pattern tries
Peano library: simple Peano numbers
peano library and benchmark: Peano numbers
peano-inf library: Lazy Peano numbers including observable infinity value.
PeanoWitnesses library: GADT type witnesses for Peano-style natural numbers.
pear library and tests: Pear Trees: An indexed type using type-level binary numbers
pecoff library: Parser for PE/COFF format.
pedestrian-dag library: A pedestrian implementation of directed acyclic graphs
pem library and test: Privacy Enhanced Mail (PEM) format reader and writer.
peparser library: A parser for PE object files.
PerfectHash library: A perfect hashing library for mapping bytestrings to values.
perfecthash library, test and benchmark: A perfect hashing library for mapping bytestrings to values.
perhaps library and test: Perhaps, a monad
persist library and test: Minimal serialization library with focus on performance
persist-state library and test: Serialization library with state and leb128 encoding
Persistence library and test: A versatile library for topological data analysis.
persistent-equivalence library: Persistent equivalence relations (aka union-find)
persistent-refs library: Haskell references backed by an IntMap for persistence and reversibility.
persistent-vector library, test and benchmark: A persistent sequence based on array mapped tries
pez library and test: A Pretty Extraordinary Zipper library
pg-query library and test: Parse PostgreSQL DDL and DML: Haskell bindings for libpg_query
pgp-wordlist library and tests: Translate between binary data and a human-readable collection of words.
phasechange library: Freezing, thawing, and copy elision
phash library and tests: Haskell bindings to pHash, the open source perceptual hash library
phladiprelio-general-shared library: A shared by different general implementations of the PhLADiPreLiO functionality.
phladiprelio-ukrainian-shared library: A shared by different Ukrainian implementations of the PhLADiPreLiO functionality.
phone-metadata library and test: Phonenumber Metadata - NOTE: this is now deprecated!
phone-numbers library and test: Haskell bindings to the libphonenumber library
phonetic-languages-filters-array library: Allows to change the structure of the function output.
phonetic-languages-rhythmicity library: Allows to estimate the rhythmicity properties for the text
pipes-files library and tests: Fast traversal of directory trees using pipes
pipes-interleave library: Interleave and merge streams of elements
Piso library: Partial isomorphisms
pkcs10 library and test: PKCS#10 library
pktree library: Implementation of the PKTree spatial index data structure
plaid library, program and test: Plaid.com api integration library
plailude library: plaimi's prelude
planar-graph library: A representation of planar graphs
plucky library and test: A library and technique for handling errors via plucking constraints
plur library and test: Plurality monad: Zero, one, or at least two.
point-octree library and tests: Point octree, with bounding boxes
pointed library: Pointed and copointed data
pointedlist library: A zipper-like comonad which works as a list, tracking a position.
poly-arity library: Tools for working with functions of undetermined arity
poly-control library: This package provides abstraction for polymorphic controls, ...
poly-rec library: Polykinded extensible records
polydata library and test: Wrap together data and it's constraints.
polymap library and test: Polygonal maps
polysemy-managed library and test: Primitive functions and data types
polyToMonoid library: Polyvariadic functions mapping to a given monoid
polytree library and test: A polymorphic rose-tree
polytypeable library: Typeable for polymorphic types.
polytypeable-utils library: Utilities for polytypeable.
polytyped library and test: Alternative to `Dynamic` with type guarantees
polyvariadic library and test: Creation and application of polyvariadic functions
pool library: Thread-safe resource pools. (deprecated)
poolboy library and test: Simple work queue for bounded concurrency
popkey library and test: Static key-value storage backed by poppy
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
portray-diff library: Pretty structural diffs between two values
portray-diff-hunit library: HUnit assertions based on portray-diff
portray-diff-quickcheck library: QuickCheck tests with portray-diff
pos library and test: positive numbers
possible library: Three valued Data.Maybe
possibly library: type Possibly a = Either String a
postgresql-copy-escape library: Format data to feed to a PostgreSQL COPY FROM statement
ppad-fixed library, test and benchmarks: Large fixed-width words and constant-time arithmetic.
prairie library and test: A first class record field library
pred-set library: Simple cached predicates
pred-trie library, test and benchmark: Predicative tries
predicate-class library: Helper class for passing context along a predicate value
predicate-transformers library: A library for writing predicates and transformations over predicates in Haskell
predicate-typed library and tests: Predicates, Refinement types and Dsl
predictive library: Predict the future, backtrack on failure
prednote library and tests: Evaluate and display trees of predicates
prednote-test library and programs: Tests and QuickCheck generators to accompany prednote.
prefix-units library and test: A basic library for SI/IEC prefix units
prelude-plus program: Prelude for rest of us
pretty-hex library: A library for hex dumps of ByteStrings
pretty-loc library: Tracking and highlighting of locations in source files
pretty-tree library: Pretty-print trees
prettyprinter-interp library and test: Efficient interpolation for Prettyprinter
preview library: The method of previewing data (instead of wholly show-ing it)
prim-instances library and test: Prim typeclass instances
prim-uniq library: Opaque unique identifiers in primitive state monads
primitive library, test and benchmark: Primitive memory-related operations
primitive-addr library: Addresses to unmanaged memory
primitive-atomic library and test: Wrappers for primops around atomic operations
primitive-convenience library: convenience class for PrimMonad m/PrimState m
primitive-foreign library and test: using the `Prim` interface for the FFI
primitive-offset library: Types for offsets into unboxed arrays
primitive-simd library and benchmark: SIMD data types and functions
primitive-slice library: Slices of primitive arrays
primitive-stablename library: primitive operations on StableNames
primitive-unaligned library and test: Unaligned access to primitive arrays
primitive-unlifted library and test: Primitive GHC types with unlifted types inside
PrimitiveArray library, test and benchmark: Efficient multidimensional arrays
PrimitiveArray-Pretty library and test: Pretty-printing for primitive arrays
primus library and test: nonempty and positive functions
print-info library: Can be used to coordinate the printing output.
priority-queue library: Simple implementation of a priority queue.
procrastinating-structure library: Pure structures that can be incrementally created in impure code
procrastinating-variable library: Haskell values that cannot be evaluated immediately.
product-isomorphic library and test: Weaken applicative functor on products
profunctor-arrows library: Profunctor arrows
profunctor-misc library: Profunctor miscellany
profunctor-optics library and program: A compact optics library compatible with the typeclasses in profunctors.
proj4-hs-bindings library: Haskell bindings for the Proj4 C dynamic library.
prolens library and tests: Profunctor-based lightweight implementation of optics
propeller library and test: A Propagator Library
property-list library: Apple property list parser
property-matchers library and test: A library for tests, based on transforming and writing properties
proquint library and test: Proquints: Identifiers that are Readable, Spellable, and Pronounceable
proto-lens library and tests: A lens-based implementation of protocol buffers in Haskell.
proto-lens-arbitrary library: Arbitrary instances for proto-lens.
proto-lens-combinators library and test: Utilities functions to proto-lens.
proto-lens-descriptors library: Protocol buffers for describing the definitions of messages.
proto-lens-optparse library: Adapting proto-lens to optparse-applicative ReadMs.
proto-lens-protobuf-types library: Basic protocol buffer message types.
proto-lens-protoc library and program: Protocol buffer compiler for the proto-lens library.
protobuf library, test and benchmark: Google Protocol Buffers via GHC.Generics
protobuf-builder library: Slow protobuf implementation
protobuf-native library, program and tests: Protocol Buffers via C++
protobuf-simple library, program and test: Simple Protocol Buffers library (proto2)
proxied library: Make functions consume Proxy instead of undefined
proxy library: proxy helpers
proxy-kindness library: A library for kind-polymorphic manipulation and inspection of Proxy values
proxy-mapping library: Mapping of Proxy Types
pseudo-boolean library and test: Reading/Writing OPB/WBO files used in pseudo boolean competition
psql-utils library: PostgreSQL Simple util tools.
ptr library, test and benchmark: Experimental abstractions for operations on pointers
ptr-poker library, test and benchmark: Pointer poking action construction and composition toolkit
publicsuffix library, test and benchmark: The publicsuffix list exposed as proper Haskell types
PUH-Project library: This is a package which includes Assignments, Email, ...
pure-priority-queue library: A pure priority queue.
pure-priority-queue-tests program: Tests for the pure-priority-queue package
pure-sum library and test: Derive fromString/toString-like for pure sum types
pure-sum-aeson library and test: Derive fromString/toString-like for pure sum types (aeson instances)
purebred-email library, program and test: types and parser for email messages (including MIME)
pureMD5 library and test: A Haskell-only implementation of the MD5 digest (hash) algorithm.
puresat library, program and tests: Pure Haskell SAT-solver
purl library and test: Support for purl (mostly universal package url).
pvar library and test: Mutable variable with primitive values
pvector library, test and benchmark: Fast persistent vectors
QLearn library: A library for fast, easy-to-use Q-learning.
qm-interpolated-string library and test: Implementation of interpolated multiline strings
qr library and program: Pure Haskell QR encoder library and command line tool
qr-imager library and test: Library to generate images.
qr-repa library and program: Library to generate QR codes from bytestrings and objects and scale image files
QuadEdge library: QuadEdge structure for representing triangulations
quadratic-irrational library and tests: An implementation of quadratic irrationals
QuadTree library and test: QuadTree library for Haskell, with lens support.
quandl-api library: Quandl.com API library
quantities library, program and tests: Unit conversion and manipulation library.
querystring-pickle library and test: Picklers for de/serialising Generic data types to and from query strings
queue library: Abstraction typeclasses for queue-like things.
queues library, test and benchmarks: Queue data structures.
quick-schema library and test: Slimmed down json schema language and validator
quickset library: Very fast and memory-compact query-only set and map structures
raft library: Miscellaneous Haskell utilities for data structures and data manipulation.
rakhana library: Stream based PDF library
ral library and benchmark: Random access lists
ral-lens library: Length-indexed random access lists: lens utilities.
ral-optics library: Length-indexed random access lists: optics utilities.
random-extras library: Additional functions for random values.
random-string library: Generate a random base 16, 58, or 64 string
Range library: Data structure for managing ranges
range library, tests and benchmark: An efficient and versatile range library.
range-set-list library and test: Memory efficient sets with ranges of elements.
Ranged-sets library and test: Ranged sets for Haskell
ranges library: Ranges and various functions on them.
rangeset library, test and benchmarks: Efficient sets for semi-contiguous data
rank1dynamic library and test: Like Data.Dynamic/Data.Typeable but with support for rank-1 polymorphic types
rank2classes library and test: standard type constructor class hierarchy, only with methods of rank 2 types
rapidhash library, tests and benchmark: rapidhash v3 - very fast, high-quality, non-cryptographic hashing
rcu library, programs and benchmarks: Read-Copy-Update for Haskell
rdf library and benchmark: Representation and Incremental Processing of RDF Data
rds-data library and test: Codecs for use with AWS rds-data
rds-data-codecs library, program and tests: Codecs for use with AWS rds-data
rds-data-polysemy library, program and tests: Codecs for use with AWS rds-data
real-dice library, program and test: Random number generation based on physical media touched by humans
rec-def library and tests: Recursively defined values
rec-smallarray library and test: SmallArray-based extensible records for small-scale fast reads
record-aeson library and test: Instances of "aeson" classes for the "record" types
record-encode library and tests: Generic encoding of records
records library: A flexible record system
records-th library: Template Haskell declarations for the records package
recursion-schemes-ix library and test: Recursion schemes over indexed Functors
recursive-zipper library: Zippers over recursive data structures.
red-black-record library and tests: Extensible records and variants indexed by a type-level Red-Black tree.
redis-resp library: REdis Serialization Protocol (RESP) implementation.
reducers library: Semigroups, specialized containers and a general map/reduce framework
reedsolomon library, programs, test and benchmark: Reed-Solomon Erasure Coding in Haskell
Ref library: Generic Mutable Ref Abstraction Layer
ref library: Generic Mutable Ref Abstraction Layer
ref-extras library: Extra stuff for mutable references
refcount library and test: Container with element counts
reference library: A class for references in Haskell
reference-counting library and test: A reference counting library to alias linear resources
refined library and tests: Refinement types with static and runtime checking
refined-containers library: Type-checked proof that a key exists in a container and can be safely indexed.
refined-http-api-data library: http-api-data instances for refined types
refined-with library: Refinement types with an "refinement applied" switch.
refined1 library and tests: Refinement types with static and runtime checking (+ Refined1)
reflection library and test: Reifies arbitrary terms into types that can be reflected back into terms
reflection-extras library: Utilities for the reflection package
reflection-without-remorse library: Efficient free and operational monads.
RefSerialize library: Write to and read from ByteStrings maintaining internal memory references
regex-easy library: sugar for regex-pcre
regex-type library: Type-level regular expressions
regex-wrapper library: Types that can only be constructed if they match a regular expression
regexp-tries library: Regular Expressions on Tries.
registry-aeson library and test: Aeson encoders / decoders
registry-messagepack library and test: MessagePack encoders / decoders
registry-options library and test: application options parsing
regular-xmlpickler library: Generic generation of HXT XmlPickler instances using Regular.
rei program: Process lists easily
reify library and program: Serialize data
reinterpret-cast library, test and benchmark: Memory reinterpretation casts for Float/Double and Word32/Word64
relapse library and test: Sensible RLP encoding
relative-date library: Durations and generalized time parsing
relevant-time library: humanised relevant time
reord library: Ad-hoc Ord instances
reorderable library: Define compound types that do not depend on member order.
repa-linear-algebra library: HMatrix operations for Repa.
rerefined library and test: Refinement types, again
resource-pool library and test: A high-performance striped resource pooling implementation
resource-pool-catchio library: Fork of resource-pool, with a MonadCatchIO constraint
resource-pool-fork-avanov library: A high-performance striped resource pooling implementation
resourcet library and test: Deterministic allocation and freeing of scarce resources.
resourcet-pool library: A small library to convert a Pool into an Acquire
resp library and test: A fast, non-backtracking parser for the redis RESP3 protocol
restricted-workers library: Running worker processes under system resource restrictions
result library and test: Encode success or at least one error
rev-scientific library: A library to provide special kind of big numbers writing.
reverse-arguments library: Reverse the arguments of arbitrary functions.
reverse-geocoding library: Simple reverse geocoding using OpenStreeMap
reverse-list library: reversed lists/snoc lists
RFC1751 library and test: RFC-1751 library for Haskell
rhythmic-sequences library: Improved library to deal with rhythmicity of short sequences
riff library and programs: RIFF parser for Haskell
riichi-scoring library, program and test: A CLI tool for interpreting and scoring Riichi Mahjong hands.
ring-buffer library and tests: A concurrent, mutable ring-buffer
ring-buffers library and tests: mutable ring buffers with atomic updates in GHC Haskell
ripple-federation library: Utilities and types to work with the Ripple federation protocol
rivers library: Rivers are like Streams, but different.
RLP library and test: RLP serialization as defined in Ethereum Yellow Paper
rng-utils library, test and benchmark: RNG within an IORef for convenient concurrent use
roc-cluster library and test: ROC online clustering algorithm
roles library: Composable class-based roles
rolling-queue library: Bounded channel for STM that discards old entries when full
rope-utf16-splay library and test: Ropes optimised for updating using UTF-16 code units and row/column pairs.
rose library and test: rose trees
rose-trees library, test and benchmark: Various trie implementations in Haskell
rose-trie library: Trees with polymorphic paths to nodes, combining properties of Rose Trees and Tries.
rosebud library and test: Common rose tree/forest functions
roundtrip-aeson library and test: Un-/parse JSON with roundtrip invertible syntax definitions.
route-planning library and test: A library and utilities for creating a route
row-types library, test and benchmark: Open Records and Variants
row-types-aeson library: aeson instances for Open Records and Variants
row-types-barbies library: barbies instances for Open Records and Variants
rowrecord library: Build records from lists of strings, as from CSV files.
rp-tree library, program, test and benchmark: Random projection trees
rset library and test: Range set
rstream library: stream-fusion framework from vector
rtorrent-state library and test: Parsing and manipulation of rtorrent state file contents
ruby-marshal library and test: Parse a subset of Ruby objects serialised with Marshal.dump.
ruin library and test: Pliable records
run-haskell-module library: Running newly generated Haskell source module.
run-st library: runST without boxing penalty
runmany program: Run multiple commands, interleaving output and errors
runmemo library and test: A simple memoization helper library
s-cargot library, program and tests: A flexible, extensible s-expression library.
s-cargot-letbind library and test: Enables let-binding and let-expansion for s-cargot defined S-expressions.
s-expression library and program: simple general-purpose s-expressions
safe-freeze library: Support for safely freezing multiple arrays in the ST monad.
safe-globals library: Safe top-level mutable variables which scope like ordinary values
safe-length library and test: Tired of accidentally calling length on tuples? Relief at last!
safecopy library and tests: Binary serialization with version control.
safecopy-migrate library: Making SafeCopy migrations easier
safecopy-store library and test: Binary serialization with version control.
safeint library and test: overflow-checked Int type
samsort library and test: A stable adaptive mergesort implementation
sarif library: SARIF implementation for Haskell
sat-simple library and tests: A high-level wrapper over minisat
scan-metadata library: Metadata types for Albedo Scanners
scfg library and test: SCFG parser for Haskell
schedule-planner program: Find the ideal lesson layout
schema library and test: Encoding-independent schemas for Haskell data types.
schemas library and test: schema guided serialization
schematic library and test: JSON-biased spec and validation tool
SciBaseTypes library, test and benchmark: Base types and classes for statistics, sciences and humanities
scientific library, test and benchmark: Numbers represented using scientific notation
scientific-notation library, test and benchmark: Scientific notation intended for tokenization
scripths library, program and test: GHCi scripts for standalone execution and Markdown documentation.
scythe library and program: Fast CSV lexing on ByteString
sec library: Semantic Editor Combinators.
secret-sharing library and test: Information-theoretic secure secret sharing
securemem library: abstraction to an auto scrubbing and const time eq, memory chunk.
SegmentTree library and program: Data structure for querying the set (or count) of intervals covering given point
semantic-source library and test: Types and functionality for working with source code
semi-iso library: Weakened partial isomorphisms, reversible computations.
semialign library: Align and Zip type-classes from the common Semialign ancestor.
semialign-extras library and test: Extra functions for working with Semialigns
semialign-indexed library: SemialignWithIndex, i.e. izipWith and ialignWith
semialign-optics library: SemialignWithIndex, i.e. izipWith and ialignWith
semibounded-lattices library and test: A Haskell implementation of semibounded lattices
Semigroup library: A semigroup
semigroupoids-syntax library and test: RebindableSyntax using the semigroupoids package
semigroups library: Anything that associates
semigroups-actions library: Semigroups actions
semilattices library and test: Semilattices
semiring-num library, test and benchmark: Basic semiring class and instances
semirings library: two monoids as one, in holy haskimony
semver library, test and benchmark: Representation, manipulation, and de/serialisation of Semantic Versions.
separated library and test: A data type with elements separated by values
seqid library: Sequence ID production and consumption
sequence library and tests: A type class for sequences and various sequence data structures.
sequential-index library: Sequential numbers that allow arbitrarily inserting numbers - for containers
serdoc-binary library and test: `binary` backend for `serdoc`
serdoc-core library and test: Generated documentation of serialization formats
serialise-uuid library and test: Encode and decode UUID values in CBOR using uuid-types, cborg and serialise.
serialize-instances library: Instances for Serialize of cereal
Set library, test and benchmark: See README for more info
set-extra library: Functions that could be added to Data.Set.
set-monad library: Set monad
set-of library: Sets of fixed size, with typelits
setdown library, program and tests: Treating files as sets to perform rapid set manipulation.
setoid library and test: A Haskell implementation of setoid
setops library: Uniform names (and Unicode operators) for set operations on data structures.
sets library, test and benchmark: Ducktyped set interface for Haskell containers.
setters library: Small (TH) library to declare setters for typical `record' data type fields.
settings library: Runtime-editable program settings.
sexpresso library and test: A flexible library for parsing and printing S-expression
sext library and test: Lists, Texts, ByteStrings and Vectors with type-encoded length
SG library: Small geometry library for dealing with vectors and collision detection
sgf library: SGF (Smart Game Format) parser
SGplus library: (updated) Small geometry library for dealing with vectors and collision detection
sha-validation library: Validation SHA Implementations
sha1 library and test: SHA-1 Hash
shapely-data library and test: Generics using @(,)@ and @Either@, with algebraic operations and typed conversions
short-vec library, test and benchmark: Length-indexed vectors using SmallArray#
short-vec-lens library: Lenses and related functionality for the `short-vec` package.
shortcircuit library: Short-circuit values and expressions.
ShortestPathProblems library and test: grammars for TSP and SHP
sieve library: Sieve is an implementation of the Sieve abstract data type.
siggy-chardust library and tests: Rounding rationals to significant digits and decimal places.
sign library and test: Arithmetic over signs and sets of signs
signable library and test: Deterministic serialisation and signatures with proto-lens support
signable-haskell-protoc program: Deterministic serialisation and signatures with proto-lens support
simple-atom library: Atom (or symbol) datatype for fast comparision and sorting.
simple-conduit library and benchmark: A simple streaming I/O library based on monadic folds
simple-enumeration library and test: Finite or countably infinite sequences of values.
simple-index library: Allows simple indexation on any data type
simple-money library: Simple library to handle and interexchange money
simple-pipe library: simple pipeline library like conduit
simple-rope library: Memory-efficient strings with concatenation and splitting.
simplistic-generics library: Generic programming without too many type classes
simpoole library and test: Simple pool
simtreelo library: Load data organized in a tree.
single-tuple library and test: a class for single tuple implementations
singleraeh library: raehik's singletons
singlethongs library and test: Like singletons, but much smaller.
singleton-dict library: Typelevel balanced search trees via a singletonized Data.Map
singleton-nats library: Unary natural numbers relying on the singletons infrastructure.
singleton-typelits library: Singletons and induction over GHC TypeLits
singletons-default library: An optional type with type level default
sink library: An alternative to lazy I/O that doesn't conflate execution with evaluation
sint library and test: Nat singletons represented by Int
siphash library and test: siphash: a fast short input PRF
siren-json library and test: Siren Tools for Haskell
size-based library: Sized functors, for size-based enumerations
SizeCompare library: Fast size comparison for standard containers.
sized library and test: Sized sequence data-types
sized-grid library and tests: Multidimensional grids with sized specified at compile time
sized-vector library: Size-parameterized vector types and functions.
sized-wrapper library and test: Create a Sized version of any container
sized-wrapper-aeson library and test: aeson instances for 'Sized'
sized-wrapper-quickcheck library: QuickCheck instance for 'Sized'
sized-wrapper-text library: 'Sized' wrappers for text
skeletal-set library and test: Skeletal set - a set with equivalence relation different from equality
skew-list library, test and benchmark: Random access lists: skew binary
skip-list library, test and benchmark: An implementation of pure skip lists
sliceofpy library, program and test: Python-ish slicing traversals for Haskell.
slotmap library and test: Pure Haskell slotmap implementation over ST or IO.
slugger library, program and test: Clean URI slugs for Haskell
small-bytearray-builder library: Serialize to bytes
smallarray library: low-level unboxed arrays, with minimal features.
smallstring library: A Unicode text type, optimized for low memory overhead
smaoin library and test: Utilities for the Smaoin semantic information model.
smash library: Combinators for Maybe types
smash-aeson library: Aeson support for the smash library
smash-lens library and test: Optics for the `smash` library
smash-microlens library and test: Optics for the `smash` library
smash-optics library: Optics for the `smash` library using `optics-core`
smith library: Parse arrays of tokens
smoothie library: Smooth curves via several interpolation modes
snowchecked library and test: A checksummed variation on Twitter's Snowflake UID generation algorithm
snowflake library: A loose port of Twitter Snowflake to Haskell. Generates arbitrary precision, ...
sofetch library, programs and test: A low-boilerplate Haxl-like data fetching library
sofetch-otel library and test
some library and test: Existential type: Some
sop-core library: True Sums of Products
sorted library: Efficient, type-safe sorted sequences
sorted-list library, test and benchmark: Type-enforced sorted lists and related functions.
sorting library: Utils for sorting.
spacepart library: Space partition data structures. Currently only a QuadTree.
sparse library, tests and benchmark: A playground of sparse linear algebra primitives using Morton ordering
sparse-tensor library and test: typesafe tensor algebra library
spdx library, test and benchmark: SPDX license expression language, Extras
spdx-license library and test: SPDX license templates
special-keys library: Simple data types that help me here and there.
SpinCounter library: Lock free Spin Counter
spire-protobuf library and tests: Minimal Protocol Buffers for Haskell, no codegen
splaytree library and test: Provides an annotated splay tree
split-morphism library and test: Split Epimorphisms and Monomorphisms
spooky library: Unified API for phantom typed newtypes and type aliases
spreadsheet library, programs and test: Read and write spreadsheets from and to CSV files in a lazy way
srcloc library: Data types for managing source code locations.
srec library: Parsing and processing s-records.
srtree library, programs and test: A general library to work with Symbolic Regression expression trees.
sstable library and programs: SSTables in Haskell
st2 library: shared heap regions between local mutable state threads
stable-memo library: Memoization based on argument identity
stable-tree library, program and test: Trees whose branches are resistant to change
stack-prism library and test: Stack prisms
stackage-types library: Shared data types between various Stackage packages
star library: *-semirings
state library: Data.State
state-codes library and test: ISO 3166-2:US state codes and i18n names
state-record library: Better records for State monad states
stateref : Abstraction for things that work like IORef.
StateVar library: State variables
StateVar-transformer library: State variables
static-bytes library and test: A Haskell library providing types representing 8, 16, 32, 64 or 128 bytes of data.
static-tensor library, test and benchmark: Tensors of statically known size
static-text library and tests: Lists, Texts, ByteStrings and Vectors of statically known length
std library: TBA
stdata library: Structure Data Library
stdf library and programs: Parse Structured Test Data Format (STDF)
stdio library and test: A simple and high performance IO toolkit for Haskell
stm-linkedlist library: Mutable, doubly linked lists for STM
stm-queue library, test and benchmark: An implementation of a real-time concurrent queue
stm-sbchan library: Bounded channel for STM where item sizes can vary
stm-tlist library: Mutable, singly-linked list in STM
storable library: Storable type class for variable-sized data
storable-complex library: Storable instance for Complex
storable-endian library: Storable instances with endianness
storable-hetero-list library and test: about Storable and Hetero list
storable-peek-poke library and test: class Sizable, Peek and Poke
storable-record library and program: Elegant definition of Storable instances for records
storable-tuple library: Storable instance for pairs and triples
storablevector library, test and benchmarks: Fast, packed, strict storable arrays with a list interface like ByteString
storablevector-carray library: Conversion between storablevector and carray
storablevector-streamfusion library and program: Conversion between storablevector and stream-fusion lists with fusion
store library, test and benchmarks: Fast binary serialization
store-core library: Fast and lightweight binary serialization
store-streaming library and test: Streaming interfaces for `store`
Strafunski-ATermLib library: An abstract data type designed for the exchange of tree-like data structures
Stream library: A library for manipulating infinite lists.
stream library, test and benchmark: Initial project template from stack
stream-fusion library: Faster Haskell lists using stream fusion
streaming library and test: an elementary streaming prelude and general stream type.
streaming-bracketed library and tests: A resource management decorator for "streaming".
streaming-bytestring library and test: Fast, effectful byte streams.
streaming-cassava library and test: Cassava support for the streaming ecosystem
streaming-commons library, test and benchmarks: Common lower-level functions needed by various streaming data libraries
streaming-concurrency library, test and benchmark: Concurrency support for the streaming ecosystem
streaming-conduit library and test: Bidirectional support between the streaming and conduit libraries
streaming-fft library: online streaming fft
streaming-process library and test: Streaming support for running system process
streaming-sort library and test: Sorting streams
streaming-utils library: http, attoparsec, pipes and other utilities for the streaming libraries
streaming-with library: with/bracket-style idioms for use with streaming
strict library: Strict data types and String IO.
strict-base library: Strict versions of base data types.
strict-base-types library: Strict variants of the types provided in base.
strict-containers library and tests: Strict containers.
strict-containers-lens library: Strict containers - Lens instances
strict-containers-serialise library: Strict containers - Serialise instances
strict-data library and tests: A collection of commonly used strict data structures
strict-lens library: Lenses for types in strict package
strict-list library and test: Strict linked list with stack-safe operations
strict-mutable-base library: Strict variants of mutable data types from base.
strict-optics library: Optics for types in strict package
strict-tuple library and test: Strict tuples
strict-tuple-lens library: Optics for the `strict-tuple` library
strict-wrapper library and test: Lightweight strict types
string-class library: String class library
string-combinators library: Polymorphic functions to build and combine stringlike values
string-conv library and test: Standardized conversion between string types
string-conv-tests test: Tests for the string-conv library
string-conversions library and test: Simplifies dealing with different types for strings
string-interpolate library, test and benchmark: Haskell string/text/bytestring interpolation that just works
string-qq library and test: QuasiQuoter for non-interpolated strings, texts and bytestrings.
string-quote library: QuasiQuoter for non-interpolated strings, texts and bytestrings.
string-similarity library, test and benchmark: longest common substring
string-typelits library: Type-level Chars and Strings, with decidable equality.
string-variants library and test: Constrained text newtypes
stringable library: A Stringable type class, in the spirit of Foldable and Traversable
stringprep library and test: Implements the "StringPrep" algorithm
stringtable-atom library: Memoize Strings as Atoms for fast comparison and sorting, with maps and sets
stringz library: Optics for string-like data types
strongweak library and test: Convert between strong and weak representations of types
strptime library: Efficient parsing of LocalTime using a binding to C's strptime, ...
structs library and test: Strict GC'd imperative object-oriented programming with cheap pointers.
structured library: Structure (hash) of your data types
structures library, tests and benchmarks: "Advanced" Data Structures
subcategories library and test: Subcategories induced by class constraints
subG library: Some extension to the Foldable and Monoid classes.
subG-instances library: Additional instances for the InsertLeft class from subG package.
sublists library: Allows to split lists into sublists with some patterns by quantity.
success library: A version of Either specialised for encoding of success or failure
succinct library, programs, tests and benchmarks: Memory efficient JSON parser
suffixarray library and programs: n log n implementation of suffix array.
SuffixStructures library, program and benchmark: Suffix array construction
suffixtree library: Efficient, lazy suffix tree implementation
suitable library: Abstract over the constraints on the parameters to type constructors
summer library and test: An implementation of extensible products and sums
swagger library and test: Implementation of swagger data model
swiss-ephemeris library and test: Haskell bindings for the Swiss Ephemeris C library
swisstable library, test and benchmarks: SwissTable hash map
swizzle library and test: Swizzle functions
swizzle-lens library and test: Swizzle lens functions
swizzle-modify library and test: Swizzle modify functions
swizzle-set library and test: Swizzle set functions
syb-with-class library and test: Scrap Your Boilerplate With Class
syb-with-class-instances-text library: Scrap Your Boilerplate With Class Text instance
symbiote library and test: Data serialization, communication, and operation verification implementation
symbol library: A 'Symbol' type for fast symbol comparison.
symbol-parser library and test: Type level string parser combinators
symbolic-regression library and test: Symbolic Regression in Haskell
symbolise library: You want Symbolize with a Z
symbolize library, tests and benchmark: Efficient global Symbol table, with Garbage Collection.
symparsec library and test: Type level string parser combinators
syntax library: Reversible parsing and pretty-printing.
syntax-attoparsec library: Syntax instances for Attoparsec.
syntax-example program: Example application using syntax, a library for abstract syntax descriptions.
syntax-example-json program: Example JSON parser/pretty-printer.
syntax-pretty library: Syntax instance for pretty, the pretty printing library.
syntax-printer library: Text and ByteString printers for 'syntax'.
syslog library and test: Decode RFC 3164 and RFC 5424 syslog message formats
t-regex library: Matchers and grammars using tree regular expressions
tables library and test: In-memory storage with multiple keys using lenses and traversals
tagged library: Haskell 98 phantom types to avoid unsafely passing dummy arguments
tagged-binary library: Provides tools for serializing data tagged with type information.
tagged-list library: Lists tagged with a type-level natural number representing their length.
tagged-transformer library: Monad transformer carrying an extra phantom type tag
tagging library: Library for tagging data
tahoe-great-black-swamp-types library: Types related to implementation of a Tahoe-LAFS Great Black Swamp server
tai64 library and test: Tai64 Labels for Haskell
Tainted library: Tainted type, and associated operations
Tape library: Bidirectionally infinite streams, akin to the tape of a Turing machine.
taskwarrior library and test: Types and aeson instances for taskwarrior tasks
tbox library: Transactional variables and data structures with IO hooks
TCache library and test: A Transactional cache with user-defined persistence
telega library: Telegram Bot API binding
template-default library: declaring Default instances just got even easier
template-haskell-optics library: Optics for template-haskell types
ten library and test: Functors et al. over arity-1 type constructors
ten-lens library: Lenses for the types in the ten package.
ten-unordered-containers library and test: Higher-kinded hash containers
Tensor library: Tensor data types
tensor library and tests: A completely type-safe library for linear algebra
tensort library, program and test: Tunable sorting for responsive robustness and beyond
terminal-text library: Text data type for styled terminal output, ...
text library, test and benchmark: An efficient packed Unicode text type.
text-ansi library: Text styling for ANSI terminals.
text-binary library: Binary instances for text types
text-containers library and test: Memory-efficient string-indexed container types.
text-conversions library and test: Safe conversions between textual types
text-convert library and tests: Convert between various textual representations.
text-icu library and test: Bindings to the ICU library
text-icu-normalized library and test: Dealing with Strict Text in NFC normalization.
text-locale-encoding library: Encode and decode Text to/from ByteString using TextEncoding
text-manipulate library, test and benchmark: Case conversion, word boundary manipulation, and textual subjugation.
text-misc-yj library and test: tribial tools about text
text-normal library and test: Unicode-normalized text
text-plus library and test: Utils for text
text-position library and test: Handling positions in text and position-tagging it.
text-regex-replace library and test: Easy replacement when using text-icu regexes.
text-short library and test: Memory-efficient representation of Unicode text strings
text-stream-decode library, test and benchmarks: Streaming decoding functions for UTF encodings. (deprecated)
text-time library and test: Library for Time parsing from Text into UTCTime
text-trie library and test: An efficient finite map from Text to values, based on bytestring-trie.
text-utf7 library and test: UTF-7 encoding/decoding for Data.Text
text-utf8 library and test: An efficient packed UTF-8 backed Unicode text type.
text1 library and tests: Non-empty values of `Data.Text`.
th-format library and test: Template Haskell based support for format strings
these library: An either-or-both data type.
these-lens library: Lenses for These
these-optics library: Optics for These
these-skinny library: A fork of the 'these' package without the dependency bloat.
thorn library: Datatype Manipulation with Template Haskell
through-text library: Convert textual types through Text without needing O(n^2) instances.
thyme library, tests and benchmark: A faster time library
tickle library and test: A port of @Data.Binary@
tiempo library: Specify time intervals in different units (secs, mins, hours, etc.)
tight-apply library: Tightly binding infix function application
tile library and test: Slippy map tile functionality.
time-interval library: Use a time unit class, but hold a concrete time type.
time-lens library: Lens-based interface to Data.Time data structures
time-patterns library: Patterns for recurring events
time-series library and program: Time series analysis.
time-series-lib library and test: Library for Time Series processing
time-units library: A basic library for defining units of time as types.
time-units-types library: Type-level representations of time durations.
timelike library: Type classes for types representing time
timeparsers library: Attoparsec parsers for various Date/Time formats.
timer-wheel library, test and benchmark: A timer wheel
timeseries library and test: Library for Time Series processing
timezone-detect library and test: Haskell bindings for the zone-detect C library; plus tz-aware utils.
timezone-olson library: A pure Haskell parser and renderer for binary Olson timezone files
timezone-olson-th library: Load TimeZoneSeries from an Olson file at compile time.
timezone-series library: Enhanced timezone handling for Data.Time
tinyid library: A secure URL-friendly string ID generator
tiphys library and test: Navigating and editing JSON data
tmpl program: simple executable for templating
tn library and program: A simple daily journal program
to-string-class library: Converting string-like types to Strings.
to-string-instances library: Instances for the ToString class.
tomato-rubato-openal library: Easy to use library for audio programming.
toml-reader-parse library and test: Alternative parser for TOML values produced by the toml-reader package.
tomlcheck program: Command-line tool to check syntax of TOML files
topograph library: Directed acyclic graphs.
tostring library: The ToString class
total-map library: Finitely represented total maps
total-maps library: Dense and sparse total maps.
transaction library and tests: Monadic representation of transactions.
Transhare library: ...
traverse-with-class library and test: Generic applicative traversals
tree-diff library, test and benchmark: Diffing of (expression) trees.
tree-render-text library: Configurable text rendering of trees.
tree-traversals library and test: Functions and newtype wrappers for traversing Trees
tree-view library: Render trees as foldable HTML and Unicode art
TreeCounter library: Wait-free Tree Counter
treefold library, test and benchmark: Provides folds which try to combine elements in a balanced way.
Treiber library: Lock free Treiber stack
trexio-hs library and test: Bindings to the TREXIO library for wave function data
trial library and tests: Trial Data Structure
trial-tomland library: Trial helper functions for tomland
tries library, test and benchmarks: Various trie implementations in Haskell
true-name library and test: Template Haskell hack to violate module abstractions
truthful library: Typeclass for truthfulness of values
truthy library: Generalized booleans and truthy values.
tskiplist library: A Skip List Implementation in Software Transactional Memory (STM)
ttask library, program and test: This is task management tool for yourself, that inspired by scrum.
ttc library and test: Textual Type Classes
ttl-hashtables library and test: Extends hashtables so that entries added can be expired after a TTL
tup-functor library and program: Homogeneous tuples
tuple library: Various functions on tuples
tuple-classes library and test: Working with n-ary tuples and functions; strict tuples
tuple-gen library: Enum instances for tuples where the digits increase with the same speed
tuple-generic library: Generic operations on tuples
tuple-hlist library: Functions to convert between tuples and HLists.
tuple-morph library: Morph between tuples, or convert them from and to HLists.
tuple-ops library: various operations on n-ary tuples via GHC.Generics
tuple-sop library and test: functions on n-ary tuples using generics-sop
tuple-th library: Generate (non-recursive) utility functions for tuples of statically known size
tupleinstances library: Functor, Applicative and Monad for n-ary tuples.
tuples library and test: Small monomorphic tuples
tuples-homogenous-h98 library: Wrappers for n-ary tuples with Traversable and Applicative/Monad instances.
txt library and test: Text
ty library: Typed type representations and equality proofs
type : Dynamic casting library with support for arbitrary rank type kinds.
type-aligned library: Various type-aligned sequence data structures.
type-combinators library: A collection of data types for type-level programming
type-combinators-quote library: Quasiquoters for the 'type-combinators' package.
type-combinators-singletons library: Interop between /type-combinators/ and /singletons/.
type-equality library: Data.Type.Equality compat package
type-equality-check library: Type equality check
type-fold library: A library for folding types to a value.
type-iso library: Typeclasses for injective relations and isomorphisms between types.
type-level library: Type-level programming library
type-level-bytestrings library and test: Tools for manipulating type-level bytes and bytestrings
type-level-integers library and test: Provides integers lifted to the type level
type-level-kv-list library and test: Type level Key-Value list.
type-level-kv-list-esqueleto library: Make Esqueleto handy with type-level-kv-list
type-level-kv-list-persistent library: Make Persistent Raw SQL handy with type-level-kv-list
type-level-natural-number library: Simple type level natural numbers
type-level-natural-number-induction library: High-level combinators for performing inductive operations.
type-level-natural-number-operations library: Basic operations on type-level natural numbers.
type-level-prng library: Type level pseudorandom number generators
type-level-show library: Utilities for writing Show-like type families
type-level-tf library: Type-level programming library (type families)
type-list library: Operations on type-level lists and tuples.
type-map library and tests: Type-indexed maps
type-rig library: Classes for the rig (sums and products) of types
type-safe-avl library: Type safe BST and AVL trees
type-set library and test: Type set
type-structure library and test: Type structure analysis
type-unary library: Type-level and typed unary natural numbers, inequality proofs, vectors
typeable-th library and test: Automatic deriving of TypeableN instances with Template Haskell
typeably library: DerivingVia Typeable counterpart to Generically
typed-digits library and tests: Digits, indexed by their base at the type level
typed-duration library: Thread delay and timeout functions with typed arguments
typed-encoding library and tests: Type safe string transformations
typed-encoding-encoding library and tests: Bridge between encoding and typed-encoding packages
typed-range library and test: An efficient and versatile typed range library.
typed-streams library and test: A stream based replacement for lists
typed-uuid library: Phantom-Typed version of UUID
typelevel library: Useful type level operations (type families and related operators).
typelevel-tensor library and test: Tensors whose ranks and dimensions type-inferred and type-checked.
typelits-witnesses library: Existential witnesses, singletons, and classes for operations on GHC TypeLits
TypeNat library: Some Nat-indexed types for GHC
typenums library and test: Type level numbers using existing Nat functionality
typeparams library: ...
typerep-map library, test and benchmark: Efficient implementation of a dependent map with types as keys
typesafe-endian library: Enforce endianness with types
typical library: Type level numbers, vectors, list. This lib needs to be extended.
tz library, tests and benchmarks: Efficient time zone handling
tzdata library and test: Time zone database (as files and as a module)
ucd library, test and benchmark: Unicode Character Database — Predicates on characters specified by Unicode
ucl library and test: Datatype and parser for the Universal Configuration Language (UCL) using libucl
udcode library: Does a set of code words form a uniquely decodable code?
udp-conduit library: Simple fire-and-forget conduit UDP wrappers
uglymemo library: A simple (but internally ugly) memoization function.
ui library and program: Minimalistic console UI (getLine), arrow key support (edit, browse cmd history).
uid library: Simple unique identifier datatype, serializable and encodable as base32
ulid library, program, test and benchmark: Implementation of ULID - Universally Unique Lexicographically Sortable Identifier
ulid-tight library and test: Another ULID implementation with tight memory representation
unamb library and program: Unambiguous choice
unamb-custom library: Functional concurrency with unamb using a custom scheduler.
unboxed library: All the standard sum types but strict and unboxed as possible
unboxed-containers library: Self-optimizing unboxed sets using view patterns and data families
unboxed-ref library and test: Fast unboxed references for ST and IO monad
unboxed-references library and program: A library for reference cells backed by unboxed-vectors
unboxing-vector library, tests and benchmark: A newtype-friendly variant of unboxed vectors
unconditional-jump library: Unconditional jumps
unfix-binders library: Unfixing and recursion schemes for data types with binders
ungadtagger library: Abstract GADTs from typelevel tags
unicode-data library, test and benchmark: Access Unicode Character Database (UCD)
unicode-data-names library, program, test and benchmark: Unicode characters names and aliases
unicode-data-parser library: Parsers for Unicode Character Database (UCD) files
unicode-data-scripts library, test and benchmark: Unicode characters scripts
unicode-data-security library, test and benchmark: Unicode security mechanisms database
unicode-transforms library, program, tests and benchmark: Unicode normalization
uniform-http library: uniform text based operations to call http
uniform-pair library: Uniform pairs with class instances
uniform-webserver library: uniform text based operations to call http
union library and benchmark: Extensible type-safe unions
union-angle library and test: Union type that include radian angle and degree angle
union-color library and test: Unify verious color formats
union-find library: Efficient union and equivalence testing of sets.
union-find-array library: union find data structure
union-map library: Heterogeneous map by open unions.
Unique library, test and benchmark: It provides the functionality like unix "uniq" utility
unique library: Fully concurrent unique identifiers
uniqueid library: Splittable Unique Identifier Supply
uniqueness-periods-vector-filters library: A library allows to change the structure of the 'RealFrac' function output.
uniqueness-periods-vector-stats library: A very basic descriptive statistics.
unit library and test: Aliases for `()`.
universal-binary library: Parser for OS X Universal Binary format.
universe library: A class for finite and recursively enumerable types.
universe-base library and test: A class for finite and recursively enumerable types.
universe-dependent-sum library: Universe instances for types from dependent-sum
universe-instances-base library: Universe instances for types from the base package
universe-instances-extended library: Universe instances for types from selected extra packages
universe-instances-trans library: Universe instances for types from the transformers and mtl packages
universe-reverse-instances library: Instances of standard classes that are made possible by enumerations
universe-some library and test: Universe instances for Some from some
unix-time library and test: Unix time parser/formatter and utilities
unjson library and test: Bidirectional JSON parsing and generation.
unlifted library: Unlifted and levity-polymorphic types
unlifted-list library: GHC Haskell lists of non-thunks (things of kind TYPE 'UnliftedRep)
unliftio-pool library: Data.Pool generalized to MonadUnliftIO.
unliftio-streams library: Generalization of io-streams to MonadUnliftIO
unordered-containers library, test and benchmarks: Efficient hashing-based container types
unordered-intmap library and test: A specialization of `HashMap Int v`
unpacked-maybe-numeric library and tests: maybes of numeric values with fewer indirections
unpacked-maybe-text library: optional text that unpacks well
unsafely library and programs: Flexible access control for unsafe operations and instances
unwitch library and test: converts between primitives
unwrapped-functors library: Unwrapping sums/products lifted to functors
unzip-traversable library and test: Unzip functions for general Traversable containers
url-bytes library, test and benchmark: Memory efficient url type and parser.
urlpath library: Painfully simple URL deployment.
urn library and test: Universal Resource Names
urn-random library: A package for updatable discrete distributions
userid library: The UserId type and useful instances for web development
users-persistent library and test: A persistent backend for the users package
utc library and test: A pragmatic time and date library.
utf8-conversions library and test: A string conversion library that assumes utf8
util-plus library and test: A collection of commonly used utils
utility-ht library and test: Various small helper functions for Lists, Maybes, Tuples, Functions
uuid library and test: For creating, comparing, parsing and printing Universally Unique Identifiers
uuid-aeson library: Aeson types for UUID instances.
uuid-bytes library and test: UUID parsing using byteverse packages
uuid-le library: Universally Unique Identifiers with little-endian-ish encoding tools
uuid-quasi library: Supplemental package for 'uuid' allowing quasiquotation.
uuid-types library and test: Type definitions for Universally Unique Identifiers
uvector library: Fast unboxed arrays with a flexible interface
uvector-algorithms library: Efficient algorithms for uvector unboxed arrays
uxadt library: Cross-language extensible representation for algebraic data type instances.
valida library and test: Simple applicative validation for product types, batteries included!
valida-base library and test: Simple applicative validation for product types, batteries included!
validated-literals library and test: Compile-time checking for partial smart-constructors
Validation library: A data-type like Either but with an accumulating Applicative
validation library and tests: A data-type like Either but with an accumulating Applicative
validation-selective library and tests: Lighweight pure data validation based on Applicative and Selective functors
validators library and tests: Composable validations for your Haskell data types
value-supply library: A library for generating values without having to thread state.
var library, test and benchmarks: Mutable variables and tuples
varargs library and test: Utilities for working with variadic functions using type-level lists
variadic-function library and test: Create and transform functions with variable arity.
variation library: nominal value with possible variations
vary library and tests: Vary: Friendly and fast polymorphic variants (open unions/coproducts/extensible sums)
vault library and test: a persistent store for values of arbitrary types
vcd library: Reading and writing VCD files.
vcs-revision library: Facilities for accessing the version control revision of the current directory.
Vec library: Fixed-length lists and low-dimensional linear algebra.
vec library, test and benchmark: Vec: length-indexed (sized) list
Vec-Boolean library: Provides Boolean instances for the Vec package
vec-lens library: Vec: length-indexed (sized) list: lens support
vec-optics library: Vec: length-indexed (sized) list: optics support
VecN library: a simple peano-indexed vector type
vector library, tests and benchmark: Efficient Arrays
vector-algorithms library, test and benchmark: Efficient algorithms for vector arrays
vector-binary library: Binary instances for vector types (deprecated)
vector-binary-instances library, test and benchmark: Instances of Data.Binary for vector
vector-buffer library: A buffer compatible with Data.Vector.*
vector-bytes-instances library and test: Serial (from the bytes package) for Vector (from the vector package)
vector-bytestring library, program and test: ByteStrings as type synonyms of Storable Vectors of Word8s
vector-circular library and test: circular vectors
vector-clock library and test: Vector clocks for versioning message flows
vector-conduit library and test: Conduit utilities for vectors
vector-doublezip library: Some special functions to work with Vector (with zip).
vector-endian library: Storable vectors with cpu-independent representation.
vector-functorlazy library: vectors that perform the fmap operation in constant time
vector-hashtables library, test and benchmark: Efficient vector-based mutable hashtables implementation.
vector-heterogenous library: A type-safe library for vectors whose elements can be of any type, ...
vector-instances library: Orphan Instances for 'Data.Vector'
vector-instances-collections library: Instances of the Data.Collections classes for Data.Vector.*
vector-mmap library and test: Memory map immutable and mutable vectors
vector-random library: Generate vectors filled with high quality pseudorandom numbers
vector-read-instances library: (deprecated) Read instances for 'Data.Vector'
vector-rotcev library and test: Vectors with O(1) reverse
vector-sized library: Size tagged vectors
vector-split library and test: Combinator library for splitting vectors.
vector-static library: Statically checked sizes on Data.Vector
vector-stream library: Efficient Streams
vector-text library: Text implementation based on unboxed char vector.
vector-th-unbox library and test: Deriver for Data.Vector.Unboxed using Template Haskell
verbosity library: Simple enum that encodes application verbosity.
version-natural library: A simple version type.
version-natural-dhall-instance library: FromDhall and ToDhall instances for version-natural.
versioning library and test: Type-safe data versioning.
versioning-servant library and test: Servant combinators for the versioning library.
versions library and test: Types and parsers for software version numbers.
vessel library: Functor-parametric containers
vext library and test: Array library monomorphized with backpack
vflow-types library and tests: types for ingesting vflow data with aeson
vinyl-generics library and test: Convert plain records to vinyl (and vice versa), generically.
vinyl-named-sugar library: Syntax sugar for vinyl records using overloaded labels.
vocabulary-kadma library: Smaoin vocabulary definitions of the base framework.
voxgig-struct library: Haskell port of voxgig/struct: JSON-like data structure utilities.
vp-tree library, test and benchmark: Vantage Point Trees
vpq library and test: Priority queue based on vector
warc library and program: A parser for the Web Archive (WARC) format
warlock library and test: Automatic type-safe conversion between Haskell data types using Template Haskell
WAVE library and program: WAVE audio file IO library
wavesurfer library: Parse WaveSurfer files
wd program: Run a command on a specified directory.
weak-bag library: Mutable bag backed by weak pointers to each item
WeakSets library and test: Simple set types. Useful to create sets of arbitrary types and nested sets.
wide-word library and tests: Data types for large but fixed width signed and unsigned integers
wide-word-instances library: Instances for wide-word
winery library, program, tests and benchmark: A compact, well-typed seralisation format for Haskell values
wire-streams library, test and benchmark: Fast binary io-streams adapter.
wireform-core library, test and benchmarks: Shared FFI primitives for wireform format packages
wireform-derive library and test: Annotation-driven Template Haskell deriver core for wireform
wireform-proto library, programs, tests and benchmarks: Protocol Buffers (proto2/proto3) with IDL parser, code generation, JSON mapping
wiring library and test: Wiring, promotion and demotion of types.
witch library and tests: Convert values from one type into another.
with library: Simple open product type
with-index library: A tiny library for composing indexed traversals
with-location library and test: Use ImplicitParams-based source locations in a backward compatible way
witherable library and test: filterable traversable
witherable-class library: Witherable = Traversable + Filterable
witness library: values that witness types
wizard library: the fantastical wizard monoid
wkt library and test: Parsec parsers and types for geographic data in well-known text (WKT) format.
wkt-geom library and tests: A parser of WKT, WKB and eWKB.
WMSigner library and test: WebMoney authentication module
woe library: Convenient typeclass for defining arbitrary-index enums.
woffex program: Web Open Font Format (WOFF) unpacker.
woot library and test: Real time group editor without operational transform.
word library and test: Words of arbitrary size
word-array library, test and benchmark: treat integral types as arrays of smaller integral types
word-compat library and test: Compatibility shim for the Int/Word internal change in GHC 9.2
word-trie library and test: Implementation of a finite trie over words.
word12 library and test: Word12 library.
word24 library, test and benchmark: 24-bit word and int types for GHC
word8 library, test and benchmark: Word8 library
word8set library and test: Word8 set
wordn library, test and benchmark: arbitrary bit size Words
world-peace library and tests: Open Union and Open Product Types
wrap library: Wrap a function's return value with another function
wraparound library: Convenient handling of points on a seamless 2-dimensional plane
wright library and test: Colour space transformations and metrics.
x509 library and test: X509 reader and writer
x509-ocsp library and test: Basic X509 OCSP implementation
x509-store library and test: X.509 collection accessing and storing methods
x509-system library: Handle per-operating-system X.509 accessors and storage
x509-util program: Utility for X509 certificate and chain
x509-validation library and test: X.509 Certificate and CRL validation
xcb-types library: Parses XML files used by the XCB project
xcodec library: Type-class for working with generically typed codecs.
xls library, program and test: Parse Microsoft Excel xls files (BIFF/Excel 97-2004)
XML library and test: Extensible Markup Language
xml-conduit-selectors library and test: jQuery-style CSS selectors for xml-conduit
xml-isogen library and test: Generate XML-isomorphic types
xml-query library: A parser-agnostic declarative API for querying XML-documents
xml-query-xml-conduit library: A binding for the "xml-query" and "xml-conduit" libraries
xml-query-xml-types library and test: An interpreter of "xml-query" queries for the "xml-types" documents
xml-syntax library and test: Parse XML from bytes
xor library, test and benchmark: Efficient XOR masking
xournal-types library: Data types for programs for xournal file format
xxhash library, test and benchmark: A Haskell implementation of the xxHash algorithm
yahoo-finance-conduit library: Streaming aproach to the yahoo finance api
yall library: Lenses with a southern twang
yamemo library: Simple memoisation function
yaml library, programs and test: Support for parsing and rendering YAML documents.
yaml-light library: A light-weight wrapper with utility functions around HsSyck
yaml-light-lens library and test: Lens interface to yaml-light.
yaml-marked library and tests: Support for parsing and rendering YAML documents with marks.
yaml-pretty-extras library and test: Extra functionality for pretty printing Yaml documents.
yaml-streamly library, programs, test and benchmark: Support for parsing and rendering YAML documents.
yaml-union library, programs and test: Read multiple yaml-files and override fields recursively
yamlscript library, program and test: Haskell bindings for YAMLScript
yamlstar library, program and test: Haskell bindings for YAMLStar
yarl library, test and benchmark: Yet another records libraries
yarn-lock library and test: Represent and parse yarn.lock files
Z-Botan library and test: Crypto for Haskell
Z-Data library and test: Array, vector and text
Z-IO library, program, test and benchmark: Simple and high performance IO toolkit for Haskell
Z-MessagePack library and test: MessagePack
Z-YAML library and test: YAML tools
z85 library and test: Implementation of the z85 binary codec
zalgo library: Z-algorithm implemented on haskell's built-in cons-cell-based lists.
zcache library: Zobrist keys for game state tracking
zero library: Semigroups with absorption
zigzag library and test: Zigzag encoding of integers into unsigned integers.
ZipFold library: Zipping folds
zippo library: A simple lens-based, generic, heterogenous, type-checked zipper library
zlib-bytes library and test: zlib compression bindings
zlib-conduit library: Streaming compression/decompression via conduits. (deprecated)
zm library and tests: Language independent, reproducible, absolute types
zsdd library: Zero-Suppressed and Reduced Decision Diagrams

Data Conduit

tar-conduit tests and benchmark: Extract and create tar files using conduit for streaming

Data Control

oops library and tests: Combinators for handling errors of many types in a composable way
oops-examples library: Oops examples

Data Flow

cached library and test: Cache values to disk.
dynamic-pipeline library, program and test: Library Type Safe implementation of Dynamic Pipeline Paradigm (DPP).
yarr library: Yet another array library

Data Mining

algebraic-graphs-io library and test: I/O utilities and datasets for algebraic-graphs
closed-intervals library and test: Closed intervals of totally ordered types
datasets library, test and benchmark: Classical data sets for statistics and machine learning
depq library and test: Double-ended priority queues
dtw library and test: (Fast) Dynamic Time Warping
Emping program: derives heuristic rules from nominal data
gdelt library and test: GDELT V2 (Global Database of Events, Language, and Tone)
heidi library, program, test and benchmarks: Tidy data in Haskell
hinduce-associations-apriori library: Apriori algorithm for association rule mining
hinduce-classifier library: Interface and utilities for classifiers
hinduce-classifier-decisiontree library: Decision Tree Classifiers for hInduce
hinduce-examples library: Example data for hInduce
hlcm library and programs: Fast algorithm for mining closed frequent itemsets
HLearn-algebra library: Algebraic foundation for homomorphic learning
HLearn-approximation library
HLearn-classification library
HLearn-datastructures library
HLearn-distributions library: Distributions for use with the HLearn library
HMM library: A hidden markov model library
hmm library: A hidden markov model library
hps-kmeans library: A nice implementation of the k-Means algorithm.
hsgsom library: An implementation of the GSOM clustering algorithm.
KdTree library and test: KdTree, for efficient search in K-dimensional point clouds.
kmeans library: K-means clustering algorithm
mnist-idx-conduit library and test: conduit utilities for MNIST IDX files
record-encode library and tests: Generic encoding of records
rp-tree library, program, test and benchmark: Random projection trees
vp-tree library, test and benchmark: Vantage Point Trees

Data Network

network-messagepack-rpc library: MessagePack RPC

Data Science

analyze library and test: making data science easy and safe with data frames
Frames-beam library and test: A library for accessing Postgres tables as in-memory data structures.
hasklepias library, programs and tests: embedded DSL for defining epidemiologic cohorts
heidi library, program, test and benchmarks: Tidy data in Haskell
javelin library, program, test and benchmarks: Labeled one-dimensional arrays
javelin-frames library, test and benchmark: Type-safe data frames based on higher-kinded types.
javelin-io library and test: IO operations for the `javelin` package
mnist-idx-conduit library and test: conduit utilities for MNIST IDX files
record-encode library and tests: Generic encoding of records
rigel-viz library and test: A mid-level wrapper for vega-lite
sibe library and programs: Machine Learning algorithms

Data Structure

IntGraph library and test: Dynamically sized graph library
red-black-tree library and test: Red Black Trees implemented in Haskell
tree-fun library: Library for functions pertaining to tree exploration and manipulation

Data Structures

ac-library-hs library, program, tests and benchmark: Data structures and algorithms
adjunctions library and test: Adjunctions and representable functors
adp-multi library, programs and test: ADP for multiple context-free languages
adp-multi-monadiccp library, program and test: Subword construction in adp-multi using monadiccp
ADPfusion library, programs and test: Efficient, high-level dynamic programming.
ADPfusionSet library and test: Dynamic programming for Set data structures.
algebraic-edge-graphs library, test and benchmark: A library for algebraic edge-graph construction and transformation
algebraic-graphs library and test: A library for algebraic graph construction and transformation
AlignmentAlgorithms library: Collection of alignment algorithms
appendmap library and test: Map with a Semigroup and Monoid instances delegating to Semigroup of the elements
array library: Mutable and immutable arrays
array-mhs library: Mutable and immutable arrays
array-utils library: Primitive functions for updating many elements in mutable arrays at once
atomic-counter library, test and benchmark: Mutable counters that can be modified with atomic operatinos
bag library: A simple stable bag.
barbies library and test: Classes for working with types that can change clothes.
barbies-th library and tests: Create strippable HKD via TH
bcp47 library and tests: Language tags as specified by BCP 47
BiobaseTypes library and test: Collection of types for bioinformatics
bit-array library and test: A bit array (aka bitset, bitmap, bit vector) API for numeric types
bitset library, test and benchmark: A space-efficient set data structure.
bitwise library, test and benchmark: fast multi-dimensional unboxed bit packed Bool arrays
bitwise-enum library, test and benchmark: Bitwise operations on bounded enumerations
bk-tree library: BK-tree implementation
bktrees library: A set data structure with approximate searching
bookkeeper library, program, tests and benchmark: Anonymous records and overloaded labels
bookkeeper-permissions library: Permissions for bookkeeper records
boolexpr library: Boolean expressions with various representations and search queries.
btree-concurrent library and test: A backend agnostic, concurrent BTree
build library and test: Build Systems à la Carte
bytestring-to-vector library and test: Convert between ByteString and Vector.Storable without copying
bytestring-trie library, test and benchmarks: An efficient finite map from bytestrings to values.
circular library, test and benchmark: Circular fixed-sized mutable vectors
cmph library and test: low level interface to CMPH
collections library: Useful standard collections types and related functions.
collections-api library: API for collection data structures.
collections-base-instances library: Useful standard collections types and related functions.
comfort-array library and test: Arrays where the index type is a function of the shape type
comfort-array-shape library and test: Additional shape types for the comfort-array package
composite-tuple library: Tuple functions for composite records.
composite-xstep library: ReaderT transformer pattern for higher kinded composite data.
container-classes library: Generic classes for interacting with different container types
containers library: Assorted concrete container types
containers-good-graph library and test: Data.Graph, but it doesn't suck!
CTRex library: Open records using closed type families.
ctrie library, test and benchmarks: Non-blocking concurrent map
data-clist library and test: Simple functional ring type.
data-forest library and test: A simple multi-way tree data structure
data-functor-logistic library: Updatable analogue of Distributive functors
data-lens-ixset library and test: A Lens for IxSet
data-r-tree library and tests: R-Tree is a spatial data structure similar to Quadtrees or B-Trees.
data-stringmap library and tests: An efficient implementation of maps from strings to arbitrary values
data-vector-growable library and test: Dynamic growable resizable mutable generic vector
dawg library: Directed acyclic word graphs
dawg-ord library and test: Directed acyclic word graphs
day-comonoid library: A comonoid w.r.t. Day
decision-diagrams library and tests: Binary Decision Diagrams (BDD) and Zero-suppressed Binary Decision Diagrams (ZDD)
delta-store library and test: Facilities for storing a Haskell value, using delta types.
delta-types library and test: Delta types, also known as change actions.
depq library and test: Double-ended priority queues
dequeue library and test: A typeclass and an implementation for double-ended queues.
diffarray library: DiffArray
disjoint-sets-st library: Imperative ST/IO based disjoint set data structure.
distributive library and test: Distributive functors -- Dual to Traversable
dph-base library: Data Parallel Haskell common config and debugging functions.
dph-examples programs: Data Parallel Haskell example programs.
dph-lifted-base library: Data Parallel Haskell common definitions used by other dph-lifted packages.
dph-lifted-copy library: Data Parallel Haskell lifted array combinators. (deprecated version)
dph-lifted-vseg library: Data Parallel Haskell lifted array combinators.
dph-par library: (deprecated)
dph-prim-interface library: Data Parallel Haskell segmented arrays. (abstract interface)
dph-prim-par library: Data Parallel Haskell segmented arrays. (production version)
dph-prim-seq library: Data Parallel Haskell segmented arrays. (sequential implementation)
dph-seq library: (deprecated)
DrIFT library and programs: Program to derive type class instances
DrIFT-cabalized programs: Program to derive type class instances
EdisonAPI library: A library of efficient, purely-functional data structures (API)
EdisonCore library: A library of efficient, purely-functional data structures (Core Implementations)
edit-distance-vector library and test: Calculate edit distances and edit scripts between vectors.
EnumMap library: More general IntMap replacement.
enummapmap library, tests and benchmark: Map of maps using Enum types as keys
enummaps library: Enum wrappers for IntMap and IntSet
enummapset library and test: IntMap and IntSet with Enum keys/elements.
Etage-Graph library and program: Data-flow based graph algorithms
ethereum-client-haskell programs and test: A Haskell version of an Ethereum client
ethereum-merkle-patricia-db library and test: A modified Merkle Patricia DB
ethereum-rlp library and test: Ethereum Recursive Length Prefix Encoding
exposed-containers library and tests: A distribution of the 'containers' package, with all modules exposed.
extended-containers library and test: Heap and Vector container types
extended-containers-lens library: lens instances for extended-containers
FenwickTree library and test: Data structure for fast query and update of cumulative sums
fgl library, test and benchmark: Martin Erwig's Functional Graph Library
fgl-extras-decompositions library: Graph decomposition algorithms
fingertree library and test: Generic finger-tree structure, with example instances
fingertree-psqueue library: Implementation of priority search queues as finger trees.
fingertree-tf library: Generic finger-tree structure using type families.
flux-monoid library: A monoid for tracking changes
function-builder library and test: Create poly variadic functions for monoidal results
functor-friends library: Friendly helpers for your recursion schemes.
generic-tree library: Generic Tree data type
GiST library: A Haskell implementation of a Generalized Search Tree (GiST)
gmap library: Composable maps and generic tries.
graph-matchings library: An implementation of algorithms for matchings in graphs
graph-utils library: A simple wrapper & quasi quoter for fgl.
graph-wrapper library and test: A wrapper around the standard Data.Graph with a less awkward interface
graphite library, test and benchmark: Graphs and networks library
graphs library: A simple monadic graph library
grids library, test and benchmark
groan library and test: ugh, another growable vector library?
gtk-largeTreeStore library and test: Large TreeStore support for gtk2hs
haggle library, test and benchmark: A graph library offering mutable, immutable, and inductive graphs
hamtmap library: A purely functional and persistent hash map
hash-cons library and test: Opportunistic hash-consing data structure
hashmap-throw library: Throw behaviour for hashmap lookup.
hashtables-plus library and benchmark: Extensions for a "hashtables" library
hCM library, program and test: Conceptual modelling support for Haskell
heap library and test: Heaps in Haskell
heaps library: Asymptotically optimal Brodal/Okasaki heaps.
heph-sparse-set library, test and benchmark: Really fast mutable sparse sets
hetero-map library: Pure heterogeneous maps.
hgal library and test: library for computation automorphism group and canonical labelling of a graph
hkd library and tests: "higher-kinded data"
HLearn-approximation library
HLearn-datastructures library
HMap library: Fast heterogeneous maps and unconstrained typeable-like functionality.
hobbits library: A library for canonically representing terms with binding
HoleyMonoid library: Monoids with holes.
hw-balancedparens library, program, tests and benchmark: Balanced parentheses
hw-dsv library, program, tests and benchmark: Unbelievably fast streaming DSV file parser
hw-eliasfano library, program, tests and benchmark: Elias-Fano
hw-excess library, tests and benchmark: Excess
hw-fingertree library and tests: Generic finger-tree structure, with example instances
hw-fingertree-strict library and tests: Generic strict finger-tree structure
hw-json-lens library, tests and benchmark: Lens for hw-json
hw-rankselect library, program, tests and benchmark: Rank-select
hw-rankselect-base library, tests and benchmark: Rank-select base
hw-xml library, program, tests and benchmark: XML parser based on succinct data structures.
I1M library and test: Code for the Haskell course taught at the University of Seville.
igraph library: Bindings to the igraph C library.
impure-containers library, test and benchmark: Mutable containers in Haskell.
indexed-containers library and test: Simple, no-frills indexed lists.
Infinitree library and benchmark: Infinitely deep trees for lazy stateless memoization
int-like library: Newtype wrappers over IntSet and IntMap
intern library: Efficient hash-consing for arbitrary data types
InternedData library, test and benchmark: Data interning (with compact regions where possible)
interval library and test: Intervals with adherences.
interval-patterns library and test: Intervals, and monoids thereof
interval-tree-clock library and test: Interval Tree Clocks
intset-imperative library, tests and benchmark: An imperative integer set written in Haskell.
iterable library: API for hierarchical multilevel collections.
ixset library and test: Efficient relational queries on Haskell sets.
ixset-typed library and test: Efficient relational queries on Haskell sets.
ixset-typed-binary-instance library: Binary instance for ixset-typed.
ixset-typed-conversions library: Conversions from ixset-typed to other containers.
ixset-typed-hashable-instance library: Hashable instance for ixset-typed.
javelin library, program, test and benchmarks: Labeled one-dimensional arrays
javelin-frames library, test and benchmark: Type-safe data frames based on higher-kinded types.
javelin-io library and test: IO operations for the `javelin` package
justified-containers library and test: Keyed container types with type-checked proofs of key presence.
kan-extensions library: Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
KdTree library and test: KdTree, for efficient search in K-dimensional point clouds.
keys library: Keyed functors and containers
knead library and test: Repa-like array processing using LLVM JIT
knit library and test: Ties the knot on data structures that reference each other by unique keys.
known-lists library and test: Easy type-level lists with term-level membership proofs.
labeled-graph library: Labeled graph structure
labeled-tree library: Labeled tree structure
lca library: O(log n) persistent online lowest common ancestor search without preprocessing
libgraph library: Store and manipulate data in a graph.
linked-list-with-iterator library and test: A pure linked list which is mutable through iterators.
list-t library and test: ListT done right
list-tries library and test: Tries and Patricia tries: finite sets and maps for list keys
listlike-instances library: Extra instances of the ListLike class
loc library and test: Line and column positions and ranges in text files
localization library: Library for localization (l10n)
magma library and test: magma is an algebraic structure.
map-exts library and programs: Extensions to Data.Map
map-syntax library and test: Syntax sugar for defining maps
mappings library, program and test: Types which represent functions k -> v
massiv library and test: Massiv (Массив) is an Array Library.
massiv-io library, tests and benchmark: Import/export of Image files into massiv Arrays
massiv-persist library and tests: Compatibility of 'massiv' with 'persist'
massiv-serialise library and tests: Compatibility of 'massiv' with 'serialise'
massiv-test library and tests: Library that contains generators, properties and tests for Massiv Array Library.
megastore library: Bulk image or strict bytestring storage
meldable-heap library: Asymptotically optimal, Coq-verified meldable heaps, AKA priority queues
merkle-patricia-db library and test: A modified Merkle Patricia DB
min-max-pqueue library, test and benchmark: Double-ended priority queues.
miso library: A tasty Haskell front-end web framework
miso-examples programs: A tasty Haskell front-end web framework
monadic-arrays library: Boxed and unboxed arrays for monad transformers
mono-traversable-keys library: Type-classes for interacting with monomorphic containers with a key
monoidmap library: Monoidal map type
monoidmap-aeson library and test: JSON support for monoidmap.
monoidmap-examples library and test: Examples for monoidmap.
monoidmap-hashable library: Hashing support for monoidmap.
monoidmap-internal library, test and benchmark: Internal support for monoidmap.
monoidmap-quickcheck library: QuickCheck support for monoidmap.
monus-weighted-search library, test and benchmark: Efficient search weighted by an ordered monoid with monus.
more-containers library and test: A few more collections
multi-containers library and test: A few multimap variants.
multimap library: A multimap.
multiset library and tests: The Data.MultiSet container type
naperian library: Efficient representable functors
nested-sequence library and test: List-like data structures with O(log(n)) random access
nested-sets library and test: Nested set model implementation
nibblestring library and test: Packed, strict nibble arrays with a list interface (ByteString for nibbles)
nonempty-containers library and test: Non-empty variants of containers data types, with full API
nonempty-zipper library and test: A non-empty comonadic list zipper
nonemptymap library: A NonEmptyMap Implementation
nspace library and test: Efficient, infinite-precision 2D and 3D spatial containers.
nthable library
overeasy library and test: A purely functional E-Graph library
pangraph library and test: A set of parsers for graph languages and conversions to graph libaries.
parameterized-utils library and test: Classes and data structures for working with data-kind indexed types
partialord library and test: Data structure supporting partial orders
path-tree library: `Data.Tree` for file paths
pedestrian-dag library: A pedestrian implementation of directed acyclic graphs
perfect-hash-generator library, programs and test: Perfect minimal hashing implementation in native Haskell
PerfectHash library: A perfect hashing library for mapping bytestrings to values.
perfecthash library, test and benchmark: A perfect hashing library for mapping bytestrings to values.
permutation library: A library for permutations and combinations.
pomaps library, tests and benchmark: Maps and sets of partial orders
pqueue library, test and benchmarks: Reliable, persistent, fast priority queues.
primitive-containers library, test and benchmark: containers backed by arrays
provide library and test: Lightweight dependency injection / namespaced+typed implicit-ish arguments
PSQueue library and test: Priority Search Queue
psqueues library, test and benchmark: Pure priority search queues
q4c12-twofinger library and tests: Efficient alternating finger trees
quickset library: Very fast and memory-compact query-only set and map structures
r-tree library, test and benchmarks: R-/R*-trees.
radix-tree library and test: Radix trees
ralist library, test and benchmark: Random access list with a list compatible interface.
random-access-list library: Random-access lists in Haskell
random-tree library: Create random trees
randproc library: Data structures and support functions for working with random processes
rational-list library and test: finite or repeating lists
rbst library, tests and benchmark: Randomized Binary Search Trees
RBTree library: Pure haskell Red-Black-Tree implemetation
recollections library and test: Fixed-size representable (Zippy Applicative) collections.
record library: Anonymous records
reflection-without-remorse library: Efficient free and operational monads.
relacion library: A relation data structure.
relation library and tests: A data structure representing Relations on Sets.
repa library: High performance, regular, shape polymorphic parallel arrays.
repa-algorithms library: Algorithms using the Repa array library.
repa-array library: Bulk array representations and operators.
repa-bytestring library: (deprecated)
repa-convert library: Packing and unpacking flat tables.
repa-devil library: Support for image reading and writing of Repa arrays using in-place FFI calls
repa-eval library: Low-level parallel operators on bulk random-accessble arrays.
repa-examples programs: Examples using the Repa array library.
repa-fftw library, test and benchmark: Perform fft with repa via FFTW
repa-flow library: Data-parallel data flows.
repa-io library: Read and write Repa arrays in various formats.
repa-plugin library: Data Flow Fusion GHC Plugin.
repa-scalar library: Scalar data types and conversions.
repa-series library: Series Expressionss API
repa-sndfile library, programs and test: Reading and writing sound files with repa arrays
repa-stream library: Stream functions not present in the vector library.
representable-functors library: Representable functors
representable-tries library: Tries from representations of polynomial functors
rle library and test: A data type of run-length-encoded lists
rosezipper library: Generic zipper implementation for Data.Tree
row-types library, test and benchmark: Open Records and Variants
row-types-aeson library: aeson instances for Open Records and Variants
row-types-barbies library: barbies instances for Open Records and Variants
rp-tree library, program, test and benchmark: Random projection trees
rrb-vector library, test and benchmark: Efficient RRB-Vectors
rstream library: stream-fusion framework from vector
sdp library: Simple Data Processing
sdp-binary library: Binary instances for SDP
sdp-deepseq library: DeepSeq SDP extension.
sdp-hashable library: Hashable instances for SDP
sdp-io library: SDP IO extension
sdp-quickcheck library, tests and benchmarks: SDP QuickCheck support
sdp4bytestring library and tests: SDP wrapper for ByteString.
sdp4text library and tests: SDP wrapper for Text.
sdp4unordered library: SDP classes for unordered containers
sdp4vector library and tests: SDP wrapper for Vector
selections library: Combinators for operating with selections over an underlying functor
semigroups library: Anything that associates
semigroups-actions library: Semigroups actions
semilattices library and test: Semilattices
semirings library: two monoids as one, in holy haskimony
seqn library and test: Sequences and measured sequences
sequence library and tests: A type class for sequences and various sequence data structures.
signed-multiset library: Multisets with negative membership.
sirkel library: Sirkel, a Chord DHT
slist library and tests: Sized list
sparse-merkle-trees library, test and benchmark: Sparse Merkle trees with proofs of inclusion and exclusion
sparsebit library: Sparse bitmaps for pattern match coverage
splay library: Generic splay-based sequence representation
spool library: Convert between ByteString and Vector.Storable without copying
srtree library, programs and test: A general library to work with Symbolic Regression expression trees.
stable-heap library, test and benchmark: Purely functional stable heaps (fair priority queues)
Stack library: Stack data structure
statethread library: The ST monad and STRefs
static-hash library: Immutable hash
stm-containers library and test: Containers for STM
stm-hamt library, test and benchmark: STM-specialised Hash Array Mapped Trie
strict-containers library and tests: Strict containers.
strict-containers-lens library: Strict containers - Lens instances
strict-containers-serialise library: Strict containers - Serialise instances
subwordgraph library and test: Subword graph implementation
subzero library and test: Helps when going "seed values" -> alternatives and optional -> answers
suffix library and test: Suffix arrays and friends
suffix-array library, program, test and benchmark: Simple and moderately efficient suffix array implementation
SuffixStructures library, program and benchmark: Suffix array construction
suffixtree library: Efficient, lazy suffix tree implementation
swapper library: Transparently swapping data from in-memory structures to disk
symantic-base library: Basic symantic combinators for Embedded Domain-Specific Languages (EDSL)
symbolise library: You want Symbolize with a Z
symbolize library, tests and benchmark: Efficient global Symbol table, with Garbage Collection.
tangle library and programs: Heterogenous memoisation monad
TernaryTrees library and program: Efficient pure ternary tree Sets and Maps
text-compression library: A text compression library.
text-containers library and test: Memory-efficient string-indexed container types.
text-trie library and test: An efficient finite map from Text to values, based on bytestring-trie.
thrist library: Type-threaded list
tie-knot library: "Ties the knot" on a given set of structures that reference each other by keys.
total-maps library: Dense and sparse total maps.
translatable-intset library and program: Integer sets with a constant time translate operation.
treap library and tests: Efficient implementation of the implicit treap data structure
treemap library and test: A tree of Data.Map.
treeseq library: Library for a multi-way tree (rose tree), using Seq (finger tree) for forests
TreeStructures library: A collection of heaps and search trees
trial library and tests: Trial Data Structure
trial-tomland library: Trial helper functions for tomland
trie-simple library, test and benchmark: Simple Map-based Trie
tst library: BK-tree implementation
type-aligned library: Various type-aligned sequence data structures.
type-indexed-queues library, test and benchmark: Queues with verified and unverified versions.
type-level-bst library: type-level binary search trees in haskell
type-level-sets library: Type-level sets and finite maps (with value-level counterparts)
typerep-map library, test and benchmark: Efficient implementation of a dependent map with types as keys
unboxing-vector library, tests and benchmark: A newtype-friendly variant of unboxed vectors
unordered-graphs library: Graph library using unordered-containers
vary library and tests: Vary: Friendly and fast polymorphic variants (open unions/coproducts/extensible sums)
vector library, tests and benchmark: Efficient Arrays
vector-clock library and test: Vector clocks for versioning message flows
vector-endian library: Storable vectors with cpu-independent representation.
vector-functorlazy library: vectors that perform the fmap operation in constant time
vector-heterogenous library: A type-safe library for vectors whose elements can be of any type, ...
vector-instances library: Orphan Instances for 'Data.Vector'
vector-mmap library and test: Memory map immutable and mutable vectors
vector-read-instances library: (deprecated) Read instances for 'Data.Vector'
vector-rotcev library and test: Vectors with O(1) reverse
vector-split library and test: Combinator library for splitting vectors.
vector-static library: Statically checked sizes on Data.Vector
vector-stream library: Efficient Streams
void library: A Haskell 98 logically uninhabited data type
vp-tree library, test and benchmark: Vantage Point Trees
yarr library: Yet another array library

Data Text JSON YAML Pandoc

uniform-json library and test: handling of JSON and YAML in an uniform way

Data Text Uniform

uniform-fileio library and tests: Uniform file handling operations
uniform-strings library and test: Manipulate and convert strings of characters uniformly and consistently

Data-structures

barbies-layered library and tests: Barbies with layered clothes.

Database

acid-state library, program, tests and benchmark: Add ACID guarantees to any serializable Haskell data structure.
acid-state-dist library, tests and benchmarks: A replication backend for acid-state
acid-state-events library: Generic event bus for acid-state applications
acid-state-tls library: Add TLS support for Data.Acid.Remote
airgql library, program and test: Automatically generate a GraphQL API for an SQLite database
algebra-dag library: Infrastructure for DAG-shaped relational algebra plans
algebra-sql library and programs: Relational Algebra and SQL Code Generation
anki-tools library and program: Tools for interacting with Anki database
anydbm library and program: Interface for DBM-like database systems
arena library, tests and benchmark: A journaled data store
atelier-db library: Relational database effect for atelier (Hasql/Rel8)
basex-client library: A BaseX client for Haskell
bbdb library and test: Ability to read, write, and modify BBDB files
beam library: A type-safe SQL mapper for Haskell that doesn't use Template Haskell
beam-automigrate library, programs, test and benchmark: DB migration library for beam, targeting Postgres.
beam-core library and test: Type-safe, feature-complete SQL query and manipulation interface for Haskell
beam-duckdb library and test: DuckDB backend for Beam
beam-large-records library and test: Integration of large-records with beam-core.
beam-migrate library: SQL DDL support and migrations support library for Beam
beam-mysql library: Connection layer between beam and MySQL/MariaDB
beam-newtype-field library: A newtype for wrapping newtypes into beam schemas
beam-postgres library and test: Connection layer between beam and postgres
beam-sqlite library and test: Beam driver for SQLite
beam-th library and tests: Template Haskell utilities for beam
BerkeleyDB library: Berkeley DB binding
berkeleydb library: Pretty BerkeleyDB v4 binding.
BerkeleyDBXML library: Berkeley DB XML binding
bindings-monetdb-mapi library: Low-level bindings for the MonetDB API (mapi)
bindings-sophia library: Low-level bindings to sophia library
blacktip library, test and benchmark: Decentralized, k-ordered unique ID generator.
bloodhound library and tests: Elasticsearch and OpenSearch client library for Haskell
bluefin-opaleye library: bluefin support for high-level PostgreSQL operations via Opaleye.
bluefin-postgresql library: bluefin support for mid-level PostgreSQL operations.
bolt library and test: Bolt driver for Neo4j
bolty library and tests: Haskell driver for Neo4j (BOLT protocol 4.4-5.4)
bolty-streamly library and tests: Streamly streaming interface for bolty Neo4j driver
cassandra-cql library: Haskell client for Cassandra's CQL protocol
cassandra-thrift library: thrift bindings to the cassandra database
cassy library and test: A high level driver for the Cassandra datastore
cayley-client library and test: A Haskell client for the Cayley graph database
classy-influxdb-simple library: Super simple InfluxDB package in Classy-MTL style
clickhouse-haskell library and test: A Haskell library as database client for Clickhouse
consumers library and tests: Concurrent PostgreSQL data consumers
consumers-metrics-prometheus library: Prometheus metrics for the consumers library
couch-hs library and program: A CouchDB view server for Haskell.
couch-simple library and test: A modern, lightweight, complete client for CouchDB
CouchDB library and test: CouchDB interface
couchdb-conduit library and test: Couch DB client library using http-conduit and aeson
couchdb-enumerator library and test: Couch DB client library using http-enumerator and aeson
cozo-hs library and test: Haskell bindings to the CozoDB C API
cql library and test: Cassandra CQL binary protocol.
cql-io library and test: Cassandra CQL client.
cql-io-tinylog library: Tinylog integration for cql-io.
CurryDB library, programs, tests and benchmark: CurryDB: In-memory Key/Value Database
cypher library: Haskell bindings for the neo4j "cypher" query language
dani-sqlite library and tests: SQLite client library.
data-basic library and test: A database library with a focus on ease of use, type safety and useful error messages
database-id-class library: Class for types with a database id
database-id-groundhog library: HasId/Groundhog interop
database-migrate library: Database versioning and migration (experimental)
database-study library: Demonstrate how a database can be implemented the functional way
dataframe-persistent library and test: Persistent database integration for the dataframe library
datalog library, program and tests: An implementation of datalog in Haskell
dawdle library and program: Generates DDL suggestions based on a CSV file
db-pipe library: A pipe-like wrapper around sqlite-simple
dbcleaner library and test: Clean database tables automatically around hspec tests
dbf library: Read and write XBase ".dbf" files
DBlimited program: A command-line SQL interface for flat files (tdf,csv,etc.)
dbm program: A *simple* database migration tool.
dbmigrations library, program and test: An implementation of relational database "migrations"
dbmigrations-mysql library, program and test: The dbmigrations tool built for MySQL databases
dbmigrations-postgresql program and test: The dbmigrations tool built for PostgreSQL databases
dbmigrations-sqlite program and test: The dbmigrations tool built for SQLite databases
dbmonitor library and program: Data consistency alerting for PostgreSQL
dfinity-radix-tree library, program and test: A generic data integrity layer.
direct-rocksdb library and test: Bindings to RocksDB.
direct-sqlite library and test: Low-level binding to SQLite3. Includes UTF8 and BLOB support.
doi library and program: Automatic Bibtex and fulltext of scientific articles
drifter library and test: Simple schema management for arbitrary databases.
drifter-postgresql library and test: PostgreSQL support for the drifter schema migration tool
drifter-sqlite library and test: SQLite support for the drifter schema migraiton tool
DSH library and program: Database Supported Haskell
dsh-sql library and program: SQL backend for Database Supported Haskell (DSH)
duckdb-ffi library and test: Haskell FFI bindings for DuckDB
duckdb-haskell library and test: Haskell bindings for duckdb.
duckdb-simple library and test: Haskell FFI bindings for DuckDB
dynamodb-simple library and test: Typesafe library for working with DynamoDB database
edis library: Statically typechecked client for Redis
effectful-opaleye library: effectful support for high-level PostgreSQL operations via Opaleye.
effectful-postgresql library: effectful support for mid-level PostgreSQL operations.
ejdb2-binding library and test: Binding to EJDB2 C library, an embedded JSON noSQL database
elm-export-persistent library: elm-export persistent entities
encryptable library and test: Typed encryption with persistent support
ephemeral-pg library and test: Temporary PostgreSQL databases for testing
erd program and test: An entity-relationship diagram generator from a plain text description.
esqueleto library and test: Type-safe EDSL for SQL queries on persistent backends.
esqueleto-pgcrypto library and test: Esqueleto support for the pgcrypto PostgreSQL module
esqueleto-postgis library and test: postgis bindings for esqueleto.
esqueleto-streaming library: Memory-constant streaming of Esqueleto results from PostgreSQL
esqueleto-textsearch library and test: PostgreSQL full text search for Esqueleto
eternity library and test: Native event-sourcing database
eternity-timestamped library: Automatic timestamping for Eternity
eventful-core library and test: Core module for eventful
eventful-dynamodb library and test: Library for eventful DynamoDB event stores
eventful-memory library and test: In-memory implementations for eventful
eventful-postgresql library and test: Postgres implementations for eventful
eventful-sql-common library: Common library for SQL event stores
eventful-sqlite library and test: SQLite implementations for eventful
eventful-test-helpers library: Common module used for eventful tests
eventium-core library and test: Core module for eventium
eventium-memory library and test: In-memory implementations for eventium
eventium-postgresql library and test: Postgres implementations for eventium
eventium-sql-common library: Common library for SQL event stores
eventium-sqlite library and test: SQLite implementations for eventium
eventium-test-helpers library: Common module used for eventium tests
eventium-testkit library: Testing utilities for eventium
eventsourcing library and test: CQRS/ES library.
eventsourcing-postgresql library: PostgreSQL adaptor for eventsourcing.
eventstore library and test: EventStore TCP Client
exigo-schema library and test: database schema for exigo marking/assessment tools
ez-couch library: A high level static library for working with CouchDB
fcg program: TBA
FerryCore library: Ferry Core Components
firebase-database library, test and benchmark: Google Firebase Database SDK
firebase-hs library and test: Firebase Auth, Firestore, and Servant integration for Haskell
firestore library and test: Wrapper for Google Firestore/Datastore API
Frames-beam library and test: A library for accessing Postgres tables as in-memory data structures.
franz library, programs and test: Append-only database
freckle-kafka library: Some extensions to the hw-kafka-client library
freckle-memcached library and test: Some extensions to the memcache library
genders library and test: Bindings to libgenders.
generic-persistence library and test: Database persistence using generics
geoip2 library: Pure haskell interface to MaxMind GeoIP database
gitson library, tests and benchmark: A document store library for Git + JSON.
gothic library: A Haskell Vault KVv2 secret engine client
grakn library and tests: A Haskell client for Grakn
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
graql library and test: Execute Graql queries on a Grakn graph
gremlin-haskell library, program and test: Graph database client for TinkerPop3 Gremlin Server
gridfs library: GridFS (MongoDB file storage) implementation
groundhog library: Type-safe datatype-database mapping library.
groundhog-converters library and test: Extended Converter Library for groundhog embedded types
groundhog-inspector library and program: Type-safe datatype-database mapping library.
groundhog-mysql library: MySQL backend for the groundhog library.
groundhog-postgresql library: PostgreSQL backend for the groundhog library.
groundhog-sqlite library: Sqlite3 backend for the groundhog library
groundhog-th library: Type-safe datatype-database mapping library.
hamsql library, program and test: Interpreter for SQL-structure definitions in YAML (YamSql)
HandlerSocketClient library: Haskell implementation of a HandlerSocket client (API).
hasbolt library, test and benchmark: Haskell driver for Neo4j 3+ (BOLT protocol)
hasbolt-extras library, program and test: Extras for hasbolt library
hascas library and test: Cassandra driver for haskell
haskell-disque library and test: Client library for the Disque datastore
haskell-neo4j-client library and test: A Haskell neo4j client
haskell-pgmq library, programs and test: Haskell interface for Tembo's PGMQ PostgreSQL extension
haskell-postgis library and test: A haskell library for PostGIS geometry types.
haskell-tyrant library: Haskell implementation of the Tokyo Tyrant binary protocol
haskelldb library: A library of combinators for generating and executing SQL statements.
haskelldb-connect-hdbc library: Bracketed HDBC session for HaskellDB
haskelldb-connect-hdbc-catchio-mtl library: Bracketed HaskellDB HDBC session using MonadCatchIO-mtl
haskelldb-connect-hdbc-catchio-tf library: Bracketed HaskellDB HDBC session using MonadCatchIO-transformers
haskelldb-connect-hdbc-catchio-transformers library: Bracketed HaskellDB HDBC session using MonadCatchIO-transformers
haskelldb-connect-hdbc-lifted library: Bracketed HaskellDB HDBC session using lifted-base
haskelldb-dynamic library and program: HaskellDB support for the dynamically loaded drivers.
haskelldb-flat library and program: An experimental HaskellDB back-end in pure Haskell (no SQL)
haskelldb-hdbc library: HaskellDB support for HDBC.
haskelldb-hdbc-mysql library and program: HaskellDB support for the HDBC MySQL driver.
haskelldb-hdbc-odbc library and program: HaskellDB support for the HDBC ODBC driver.
haskelldb-hdbc-postgresql library and program: HaskellDB support for the HDBC PostgreSQL driver.
haskelldb-hdbc-sqlite3 library and program: HaskellDB support for the HDBC SQLite driver.
haskelldb-hsql library: HaskellDB support for HSQL.
haskelldb-hsql-mysql library and program: HaskellDB support for the HSQL MySQL driver.
haskelldb-hsql-odbc library and program: HaskellDB support for the HSQL ODBC driver.
haskelldb-hsql-oracle library and program: HaskellDB support for the HSQL Oracle driver.
haskelldb-hsql-postgresql library and program: HaskellDB support for the HSQL PostgreSQL driver.
haskelldb-hsql-sqlite library and program: HaskellDB support for the HSQL SQLite driver.
haskelldb-hsql-sqlite3 library and program: HaskellDB support for the HSQL SQLite3 driver.
haskelldb-th library: Template Haskell utilities for HaskellDB.
haskelldb-wx library: HaskellDB support for WXHaskell.
haskey library and tests: A transactional, ACID compliant, embeddable key-value store.
haskey-btree library and tests: B+-tree implementation in Haskell.
haskey-mtl library and test: A monad transformer supporting Haskey transactions.
HaskRel library: HaskRel, Haskell as a DBMS with support for the relational algebra
hasparql-client library: This package enables to write SPARQL queries to remote endpoints.
hasql library, tests and benchmark: Fast PostgreSQL driver with a flexible mapping API
hasql-backend library: API for backends of "hasql"
hasql-class library and test: Encodable and Decodable classes for hasql
hasql-cursor-query library and test: A declarative abstraction over PostgreSQL Cursor
hasql-cursor-transaction library: An abstraction for simultaneous fetching from multiple PostgreSQL cursors
hasql-effectful library, program and test: Effectful bindings for hasql
hasql-generate library and test: Compile-time PostgreSQL data generation for hasql
hasql-interpolate library and test: QuasiQuoter that supports expression interpolation for hasql
hasql-migration library and test: PostgreSQL Schema Migrations
hasql-mover library: Hasql migrations library
hasql-notifications library, program and test: LISTEN/NOTIFY support for Hasql
hasql-optparse-applicative library: "optparse-applicative" parsers for "hasql"
hasql-pipes library: A pipe to stream a postgres database cursor in the hasql ecosystem
hasql-pool library and test: Pool of connections for Hasql
hasql-postgres library, tests and benchmark: A "PostgreSQL" backend for the "hasql" library
hasql-postgres-options library: An "optparse-applicative" parser for "hasql-postgres"
hasql-resource-pool library and test: A pool of connections for Hasql based on resource-pool.
hasql-streams-conduit library: Stream Hasql queries with Conduit
hasql-streams-core library: Stream Hasql queries
hasql-streams-example program: An example program that shows how to use Hasql streams with Rel8
hasql-streams-pipes library: Stream Hasql queries with Pipes
hasql-streams-streaming library: Stream Hasql queries with Streaming
hasql-streams-streamly library: Stream Hasql queries with Streamly
hasql-th library: Template Haskell utilities for Hasql
hasql-transaction library and test: Composable abstraction over retryable transactions for Hasql
hasql-transaction-io library: Perform IO actions during transactions for Hasql
hasqlator-mysql library: composable SQL generation
hasqly-mysql library: composable SQL generation
HDBC library and program: Haskell Database Connectivity
hdbc-aeson library: Deserialize from HDBC rows to FromJSON instances
HDBC-mysql library: MySQL driver for HDBC
HDBC-odbc library and programs: ODBC driver for HDBC
HDBC-postgresql library and program: PostgreSQL driver for HDBC
HDBC-postgresql-hstore library: Manipulate data in PostgreSQL "hstore" columns.
hdbc-postgresql-hstore library: Manipulate data in PostgreSQL "hstore" columns.
HDBC-session library: Bracketed connection for HDBC
HDBC-sqlite3 library and program: Sqlite v3 driver for HDBC
hdbc-tuple library: Type save tuples for HDBC
hdbi library and tests: Haskell Database Independent interface
hdbi-conduit library and test: Conduit glue for HDBI
hdbi-postgresql library and tests: PostgreSQL driver for hdbi
hdbi-sqlite library and test: SQlite driver for HDBI
hdf5 library and test: Haskell interface to the HDF5 scientific data storage library.
hedis library, tests and benchmark: Client library for the Redis datastore: supports full command set, pipelining.
hedis-config library: Easy trivial configuration for Redis
hedis-envy library
hedis-monadic library: A la MonadReader for Redis connection
hedis-pile library and test: Caching mandatory data with Redis
hedis-simple library: A simplified API for hedis
hedis-tags library and test: Tags for hedis
hesql program: Haskell's embedded SQL
HGraphStorage library, test and benchmark: Graph database stored on disk
higher-leveldb library and test: A rich monadic API for working with leveldb databases.
hlrdb library: High-level Redis Database
hlrdb-core library: High-level Redis Database Core API
hmemdb library: In-memory relational database
hocilib library and test: FFI binding to OCILIB
HongoDB library and test: A Simple Key Value Store
hpgsql library: Pure Haskell PostgreSQL driver (no libpq)
hpgsql-simple-compat library: Fork of postgresql-simple implemented with hpgsql instead of postgresql-libpq.
hpqtypes library and test: Haskell bindings to libpqtypes
hpqtypes-effectful library and test: Adaptation of the hpqtypes library for the effectful ecosystem.
hpqtypes-extras library, test and benchmark: Extra utilities for hpqtypes library
hRESP library: haskell implementation of RESP (REdis Serialization Protocol).
hs-cdb library: A library for reading CDB (Constant Database) files.
hs-opentelemetry-instrumentation-persistent library and test: OpenTelemetry instrumentation for the Persistent database library
hs-opentelemetry-instrumentation-persistent-mysql library: OpenTelemetry instrumentation for persistent-mysql
hs-opentelemetry-instrumentation-postgresql-simple library and test: OpenTelemetry instrumentation for postgresql-simple
hs-rqlite library: A Haskell client for RQlite
hscassandra library: cassandra database interface
hSimpleDB library: Interface to Amazon's SimpleDB service.
hsparql library and test: A SPARQL query generator and DSL, and a client to query a SPARQL server.
hsql library: Database access from Haskell.
hsql-mysql library: MySQL driver for HSQL.
hsql-odbc library: A Haskell Interface to ODBC.
hsql-postgresql library: A Haskell Interface to PostgreSQL via the PQ library.
hsql-sqlite3 library: SQLite3 driver for HSQL.
hsSqlite3 library: Sqlite3 bindings
hssqlppp library and test: SQL parser and type checker
hssqlppp-th library and test: hssqlppp extras which need template-haskell
hw-kafka-client library, program and tests: Kafka bindings for Haskell
hw-kafka-conduit library, program and test: Conduit bindings for hw-kafka-client
hypher library and test: A Haskell neo4j client
hzk library and test: Haskell client library for Apache Zookeeper
ihp-datasync-typescript library, program and test: TypeScript code generation for IHP DataSync
ihp-migrate library, program and test: Provides the IHP migrate binary
ihp-pglistener library and test: PostgreSQL LISTEN/NOTIFY channel manager for IHP
ihp-postgres-parser library and test: PostgreSQL DDL parser and compiler
ihp-postgresql-simple-extra library and test: Extra data types for postgresql-simple
influxdb library, programs and tests: InfluxDB client library for Haskell
io-storage library: A key-value store in the IO monad.
IPv6DB library, program and test: A RESTful microService for IPv6-related data
json-state library: Keep program state in JSON files.
json2-hdbc library: Support JSON for SQL Database.
JunkDB library
JunkDB-driver-gdbm library
JunkDB-driver-hashtables library
kawa library, program and test: Key-value store in single files.
keiro-migrations library, programs and tests: Schema migrations for keiro
keyvaluehash library: Pure Haskell key/value store implementation
kioku-migrate program: The kioku schema migration entry point
kioku-migrations library and test: Schema migrations for kioku
kiroku-cli library, program and test: Embeddable operator CLI for Kiroku
kiroku-metrics library, program and test: Metrics, health, and event-streaming HTTP endpoints for Kiroku
kiroku-otel library and test: OpenTelemetry W3C trace-context helpers for Kiroku event metadata
kiroku-store library, test and benchmarks: High-performance PostgreSQL event store
kiroku-store-migrations library, program and test: Schema migrations for kiroku-store
KyotoCabinet library: Kyoto Cabinet DB bindings
kyotocabinet library: Mid level bindings to Kyoto Cabinet
LambdaDB library, program and test: On-memory Database using Lambda Function environment.
language-sqlite library: Full parser and generator for SQL as implemented by SQLite3
leveldb-haskell library, programs and test: Haskell bindings to LevelDB
leveldb-haskell-fork library, programs and test: Haskell bindings to LevelDB
libinfluxdb library: libinfluxdb
libmdbx library, program and test: Bindings for libmdbx, an embedded key/value store
libpq library: libpq binding for Haskell
liszt library, programs and benchmark: Append only key-list database
lmdb library: Lightning MDB bindings
lmdb-simple library, tests and benchmark: Simple API for LMDB
lsm-tree library, tests and benchmarks: Log-structured merge-trees
mallard library and program: Database migration and testing as a library.
mbtiles library and test: Haskell MBTiles client.
mealstrom library and test: Manipulate FSMs and store them in PostgreSQL.
memcache library, test and benchmark: A memcached client library.
memcached-binary library and test: memcached client using binary protocol.
memdb library and test: Efficient in memory indexed database
memo-sqlite library: memoize functions using SQLite3 database
message-db-temp library: Temporary message-db for integration testing
MetaHDBC library: Statically checked database access
migrant-core library and test: Semi-automatic database schema migrations
migrant-hdbc library and test: Semi-automatic database schema migrations
migrant-postgresql-simple library and test: Semi-automatic database schema migrations
migrant-sqlite-simple library and test: Semi-automatic database schema migrations
monad-persist library and test: An mtl-style typeclass and transformer for persistent.
monarch library, tests and benchmark: Monadic interface for TokyoTyrant.
monetdb-mapi library: Mid-level bindings for the MonetDB API (mapi)
mongoDB library, test and benchmark: Driver (client) for MongoDB, a free, scalable, fast, document DBMS
mongodb-queue library and test: message queue using MongoDB
morph library and program: A simple database migrator for PostgreSQL
moto library and test: General purpose migrations library
moto-postgresql library: PostgreSQL-based migrations registry for moto.
ms-tds library and test: TDS Protocol implemented in Haskell
mssql-simple library and test: SQL Server client library implemented in Haskell
muesli library: A simple document-oriented database
multipool library and test: ...
multipool-persistent library and test: Read and write from appropriate persistent sql instances in replicated environments.
multipool-persistent-postgresql library and test: Read and write appropriately from both master and replicated postgresql instances.
mysql library and test: A low-level MySQL client library.
mysql-effect library: An extensible mysql effect using extensible-effects and mysql-simple
mysql-haskell library, tests and benchmarks: pure haskell MySQL driver
mysql-haskell-nem library: Adds a interface like mysql-simple to mysql-haskell.
mysql-haskell-openssl library: TLS support for mysql-haskell package using openssl
mysql-json-table library and program: Using MySQL to store id-to-json tables.
mysql-pure library, test and benchmarks: pure haskell MySQL driver
mysql-simple library and test: A mid-level MySQL client library.
mysql-simple-quasi library: Quasi-quoter for use with mysql-simple.
mysql-simple-typed library: Typed extension to mysql simple
narc library: Query SQL databases using Nested Relational Calculus embedded in Haskell.
Neks library and programs: Simple networked key/value store
net-spider library and tests: A graph database middleware to maintain a time-varying graph.
net-spider-cli library and tests: CLI option parsers for NetSpider objects
net-spider-pangraph library and tests: Conversion between net-spider and pangraph
net-spider-rpl library and tests: NetSpider data model and utility for RPL networks
net-spider-rpl-cli library, program and test: CLI executable of NetSpider.RPL.
odpic-raw library and test: Oracle Database Bindings
opaleye library and tests: An SQL-generating DSL targeting PostgreSQL
opaleye-classy library: Opaleye wrapped up in classy MTL attire.
opaleye-sqlite library and tests: An SQL-generating DSL targeting SQLite
opaleye-textsearch library and test: Text search utilities for Opaleye
opaleye-trans library and programs: A monad transformer for Opaleye
orchestrate library and test: An API client for http://orchestrate.io/.
OrchestrateDB library and tests: Unofficial Haskell Client Library for the Orchestrate.io API
orville-postgresql library and test: A Haskell library for PostgreSQL
packstream-bolt library and test: PackStream binary serialization format
Pathfinder library: Relational optimiser and code generator
PCLT-DB library: An addon to PCLT package: enchance PCLT catalog with PostgreSQL powers.
perdure library and program: Robust persistence for acyclic immutable data
peregrin library and test: Database migration support for use in other libraries.
persist2er program: Transforms persist's quasi-quoted syntax into ER format
persistable-record library and test: Binding between SQL database values and haskell records.
persistable-types-HDBC-pg library and test: HDBC and Relational-Record instances of PostgreSQL extended types
persistent library, test and benchmark: Type-safe, multi-backend data serialization.
persistent-audit library, program and test: Parses a Persist Model file and produces Audit Models
persistent-cereal library: Helper functions for writing Persistent instances
persistent-database-url library and test: Parse DATABASE_URL into configuration types for Persistent
persistent-documentation library and test: Documentation DSL for persistent entities
persistent-event-source library and test: Persistent based event sourcing.
persistent-eventsource library and test: Persistent based event sourcing.
persistent-generic library: Derive Persistent classes generically
persistent-hssqlppp library: Declare Persistent entities using SQL SELECT query syntax
persistent-instances-iproute library: Persistent instances for types in iproute
persistent-iproute library: Persistent instances for types in iproute
persistent-lens library: lens helpers for persistent.
persistent-migration library and tests: Manual migrations for the persistent library
persistent-mongoDB library and test: Backend for the persistent library using mongoDB.
persistent-mtl test: Monad transformer for the persistent API
persistent-mysql library and test: Backend for the persistent library using MySQL database server.
persistent-mysql-haskell library, program and test: A pure haskell backend for the persistent library using MySQL database server.
persistent-mysql-pure library, program and test: A pure haskell backend for the persistent library using MySQL database server.
persistent-odbc library and program: Backend for the persistent library using ODBC
persistent-pagination library and test: Efficient and correct pagination for persistent or esqueleto queries.
persistent-parser library and test: Parse persistent model files
persistent-postgresql library, program and test: Backend for the persistent library using postgresql.
persistent-postgresql-streaming library: Memory-constant streaming of Persistent entities from PostgreSQL
persistent-protobuf library: Template-Haskell helpers for integrating protobufs with persistent.
persistent-qq library and test: Provides a quasi-quoter for raw SQL for persistent
persistent-ratelimit library: A library for rate limiting activities with a persistent backend.
persistent-redis library and test: Backend for persistent library using Redis.
persistent-relational-record library and tests: relational-record on persisten backends.
persistent-spatial library and test: Database agnostic, spatially indexed type for geographic points.
persistent-sql-lifted library: Monad classes for running queries with Persistent and Esqueleto
persistent-sqlite library, program and test: Backend for the persistent library using sqlite3.
persistent-stm library and test: STM transactions involving persistent storage
persistent-template library: Type-safe, non-relational, multi-backend persistence.
persistent-template-classy library and test: Generate classy lens field accessors for persistent models
persistent-test library: Tests for Persistent
persistent-zookeeper library and test: Backend for persistent library using Zookeeper.
pg library and test: Mid-level PostgreSQL client library
pg-entity library, program and test: A pleasant PostgreSQL layer
pg-extras library and test: PostgreSQL database performance insights.
pg-migrate library, program and tests: Hasql-native PostgreSQL migration engine
pg-migrate-cli library, program and tests: Reusable command parsers and renderers for pg-migrate
pg-migrate-embed library and tests: Compile-time ordered SQL manifests for pg-migrate
pg-migrate-import-codd library and tests: Import Codd migration history into pg-migrate
pg-migrate-import-hasql-migration library and tests: Import hasql-migration history into pg-migrate
pg-migrate-test-support library and test: Ephemeral PostgreSQL helpers for pg-migrate tests
pg-query library and test: Parse PostgreSQL DDL and DML: Haskell bindings for libpg_query
pg-schema library and tests: Type-level definition of database schema and safe DML for PostgreSQL.
pg-store library and test: Simple storage interface to PostgreSQL
pg-wire library, test and benchmark: Pure Haskell PostgreSQL wire protocol driver
pgmq-config library and test: Declarative queue configuration for PGMQ (PostgreSQL Message Queue)
pgmq-core library and test: Core types for pgmq-hs, a Haskell client for PGMQ
pgmq-effectful library and test: Effectful effects for PGMQ (PostgreSQL Message Queue)
pgmq-hasql library and test: Hasql-based client for PGMQ (PostgreSQL Message Queue)
pgmq-migration library and test: PGMQ schema migrations without PostgreSQL extension
pgqueuer-hs library and test: PostgreSQL powered Job queue
pgsql-simple library: A mid-level PostgreSQL client library.
pgvector library and test: pgvector support for Haskell
pipes-mongodb library and test: Stream results from MongoDB
pipes-postgresql-simple library: Convert various postgresql-simple calls to work with pipes
pipes-sqlite-simple library: Functions that smash Pipes and sqlite-simple together
plist-buddy library and test: Remote monad for editing plists
polysemy-db library: Polysemy effects for databases
polysemy-hasql library and test: Polysemy effects for databases
polysemy-hasql-test library and test: Test utilities for polysemy-hasql
pool library: Thread-safe resource pools. (deprecated)
pool-conduit library: Resource pool allocations via ResourceT. (deprecated)
poseidon library and test: Simple extensible library to run SQL file against PostgreSQL database.
poseidon-postgis library and test: Extension of Poseidon library for Postgis (Spatial and Geographic objects for PostgreSQL)
positron library and test: Experiment
postgres-options library and test: An Options type representing options for postgres connections
postgres-tmp library: Create a temporary database that is deleted after performing some operation
postgres-websockets library, program and test: Middleware to map LISTEN/NOTIFY messages to Websockets
PostgreSQL library: Thin wrapper over the C postgresql library
postgresql-binary library, test and benchmarks: Encoders and decoders for the PostgreSQL's binary format
postgresql-config library: Types for easy adding postgresql configuration to your program
postgresql-connection-string library and test: PostgreSQL connection string type, parser and builder
postgresql-cube library: Cube support for postgresql-simple
postgresql-error-codes library: PostgreSQL error codes
postgresql-libpq library and test: low-level binding to libpq
postgresql-libpq-configure library: low-level binding to libpq: configure based provider
postgresql-libpq-notify library and test: Minimal dependency PostgreSQL notifications library
postgresql-libpq-pkgconfig library: low-level binding to libpq: pkg-config based provider
postgresql-lo-stream library: Utilities for streaming PostgreSQL LargeObjects
postgresql-ltree library and test: Types and functions for representing PostgreSQL's ltree
postgresql-migration library, program and test: PostgreSQL Schema Migrations
postgresql-migration-persistent library: A PostgreSQL persistent schema migration utility
postgresql-operation-counting library: Track and render a tally of which PostgreSQL operations have been performed.
postgresql-orm library and program: An ORM (Object Relational Mapping) and migrations DSL for PostgreSQL.
postgresql-placeholder-converter library and test: Converter for question mark style and dollar sign style of PostgreSQL SQL.
postgresql-pure library, tests and benchmarks: pure Haskell PostgreSQL driver
postgresql-query library and tests: Sql interpolating quasiquote plus some kind of primitive ORM using it
postgresql-replicant library, program and test: PostgreSQL logical streaming replication library
postgresql-resilient library: Automatic re-connection support for PostgreSQL
postgresql-schema library and programs: PostgreSQL Schema Management
postgresql-simple library, tests and benchmark: Mid-Level PostgreSQL client library
postgresql-simple-bind library and tests: FFI-like bindings for PostgreSQL stored functions
postgresql-simple-interpolate library and benchmark: Interpolated SQL queries via quasiquotation
postgresql-simple-interval library and test: A simple interval type for PostgreSQL.
postgresql-simple-ltree library and test: Instances for using ltree with postgresql-simple
postgresql-simple-migration library, program and test: PostgreSQL Schema Migrations
postgresql-simple-named library and tests: Implementation of named parameters for `postgresql-simple` library
postgresql-simple-opts library and test: An optparse-applicative and envy parser for postgres options
postgresql-simple-typed library: Typed extension for PostgreSQL simple
postgresql-simple-url library and test: Parse postgres:// url into ConnectInfo
postgresql-syntax library, test and benchmarks: PostgreSQL AST parsing and rendering
postgresql-transactional library: a transactional monad on top of postgresql-simple
postgresql-tx library: A safe transaction monad for use with various PostgreSQL Haskell libraries.
postgresql-tx-monad-logger library: postgresql-tx interfacing for use with monad-logger.
postgresql-tx-query library: postgresql-tx interfacing for use with postgresql-query.
postgresql-tx-simple library: postgresql-tx interfacing for use with postgresql-simple.
postgresql-tx-squeal library: postgresql-tx interfacing for use with squeal-postgresql.
postgresql-tx-squeal-compat-simple library: Connection interop from postgresql-simple connections to postgresql-libpq connections.
postgresql-typed library, tests and benchmark: PostgreSQL interface with compile-time SQL type checking, optional HDBC backend
postgresql-typed-lifted library: postgresql-typed operations lifted to any instance of MonadBase or MonadBaseControl.
potoki-hasql library: Integration of "potoki" and "hasql".
ppad-lmdb library, test and benchmarks: Minimal bindings to LMDB.
pqi library: Driver-agnostic interface to the PostgreSQL libpq API
pqi-conformance library: Differential conformance tests for pqi adapters
pqi-ffi library and test: FFI adapter for pqi, backed by postgresql-libpq
pqi-native library and test: Native (pure-Haskell) adapter for pqi
preql library, test and benchmark: safe PostgreSQL queries using Quasiquoters
presto-hdbc library: An HDBC connector for Presto
psql library and test: PostgreSQL client
pure-cdb library and test: Another pure-haskell CDB (Constant Database) implementation
qudb program: Quite Useless DB
queryparser library and benchmark: Analysis and parsing library for SQL queries.
queryparser-demo library: Demo package containing queryparser examples
queryparser-hive library: Parsing for Hive SQL queries
queryparser-presto library: Parsing for Presto SQL queries
queryparser-vertica library: Parsing for Vertica SQL queries
quibble-core library and test: Convenient SQL query language for Haskell (but only for single tables)
quokka library and test: Test helpers which help generate data for projects that use postgresql.
redis library: A driver for Redis key-value database
redis-hs library: A simple Redis library for Haskell
redis-io library, test and benchmark: Yet another redis client.
redis-schema library: Typed, schema-based, composable Redis library
redis-simple library: Simple redis bindings for Haskell
rediscaching-haxl library: Combine redis caching and haxl.
redland library: Redland RDF library bindings
RefSerialize library: Write to and read from ByteStrings maintaining internal memory references
refurb library and test: Tools for maintaining a database
relational-postgresql8 library: PostgreSQL v8.x driver for haskell-relational-record
relational-query library and tests: Typeful, Modular, Relational, algebraic query engine
relational-query-HDBC library and test: HDBC instance of relational-query and typed query interface for HDBC
relational-query-postgresql-pure library and test: The connector of relational-record and postgresql-pure.
relational-record library: Meta package of Relational Record
relational-record-examples library and programs: Examples of Haskell Relationa Record
relational-schemas library: RDBMSs' schema templates for relational-query
relay-pagination library and test: Relay-style cursor pagination wire types and opaque cursor codec
relay-pagination-hasql library and test: Keyset-pagination engine producing Relay connections from hasql queries
resource-pool library and test: A high-performance striped resource pooling implementation
resource-pool-catchio library: Fork of resource-pool, with a MonadCatchIO constraint
resource-pool-fork-avanov library: A high-performance striped resource pooling implementation
resourcet-pool library: A small library to convert a Pool into an Acquire
rethinkdb library, program, test and benchmark: A driver for RethinkDB 2.2
rethinkdb-client-driver library, test and benchmark: Client driver for RethinkDB
rethinkdb-model library: Useful tools for modeling data with rethinkdb
rethinkdb-wereHamster library: RethinkDB driver for Haskell
rfc-psql library: The PostgreSQL extensions from the Robert Fischer Commons.
ribbit library: [Unmaintained] Type-level Relational DB combinators.
rivet-autoimporter program: Database migration library; automatic importer.
rivet-core library and test: Database migration library; core functionality.
rocksdb-haskell library and test: Haskell bindings to RocksDB
rocksdb-haskell-jprupp library and test: Haskell bindings for RocksDB
rocksdb-query library and test: RocksDB database querying library for Haskell
ron library and benchmark: RON
ron-rdt library: Replicated Data Types (RON-RDT)
ron-schema library: RON-Schema
ron-storage library: RON Storage
scidb-hquery library and program: Haskell query for SciDB via shim
seakale library: Pure SQL layer on top of other libraries
seakale-postgresql library: PostgreSQL backend for Seakale
seakale-tests library: Helpers to test code using Seakale
sednaDBXML library: Sedna C API XML Binding
selda library: Multi-backend, high-level EDSL for interacting with SQL databases.
selda-json library: JSON support for the Selda database library.
selda-postgresql library: PostgreSQL backend for the Selda database EDSL.
selda-sqlite library: SQLite backend for the Selda database EDSL.
servant-db-postgresql library, program and test: Derive a postgres client to database API specified by servant-db
servant-postgresql library: Useful functions and instances for using servant with a PostgreSQL context
servant-util-beam-pg library, program and test: Implementation of servant-util primitives for beam-postgres.
shake-extras library: Extra utilities for shake build systems
shapefile library: Parser and related tools for ESRI shapefile format
shibuya-kiroku-adapter library and test: Kiroku event store adapter for the Shibuya queue processing framework
shibuya-pgmq-adapter library and test: PGMQ adapter for the Shibuya queue processing framework
simple-sql-parser library and tests: A parser for SQL.
simplest-sqlite library: Simplest SQLite3 binding
sirkel library: Sirkel, a Chord DHT
snaplet-riak library: A Snaplet for the Riak database
snaplet-sedna library: Snaplet for Sedna Bindings. Essentailly a rip of snaplet-hdbc.
sophia library, test and benchmark: Bindings to Sophia library
sparql-protocol library and test: An SPARQL 1.1 Protocol client library.
sphinx library: Haskell bindings to the Sphinx full-text searching daemon.
sphinx-cli program: Sphinx CLI and demo of Haskell Sphinx library
sqel library and test: Guided derivation for Hasql statements
sql-simple library: common middle-level sql client.
sql-simple-mysql library: mysql backend for sql-simple
sql-simple-pool library: conection pool for sql-simple
sql-simple-postgresql library: postgresql backend for sql-simple
sql-simple-sqlite library: sqlite backend for sql-simple
sql-words library and test: SQL keywords data constructors into OverloadedString
sqlcipher library and test: Haskell binding to sqlcipher
sqlcli library: Bindings for SQL/CLI (ODBC) C API.
sqlcli-odbc library: ODBC specific definitions to be used by SQL CLI clients.
SQLDeps library: Calculate db-data dependencies of functions
sqlite library and test: Haskell binding to sqlite3
sqlite-easy library, test and benchmark: A primitive yet easy to use sqlite library.
sqlite-simple library and test: Mid-Level SQLite client library
sqlite-simple-effectful library: Adaptation of the sqlite-simple library for the effectful ecosystem.
sqlite-simple-errors library and test: Wrapper around errors from sqlite-simple
sqlite-simple-interpolate library and test: Interpolated SQLite queries via quasiquotation
sqlite-simple-typed library: Typed extension to sqlite simple
SQLiteDAV library, program and test: WebDAV server that maps an SQLite database to directories and files.
sqlvalue-list library: Class and instances for conversion to list of SqlValue.
squeal-postgresql library, program, tests and benchmark: Squeal PostgreSQL Library
squeal-postgresql-ltree library: LTree extension for Squeal
squeal-postgresql-uuid-ossp library: UUID OSSP extension for Squeal
squealgen program and test: generate squeal types from an existing database
stakhanov library and test: A Haskell PGMQ client
streaming-postgresql-simple library: Stream postgresql-query results using the streaming library
streamly-lmdb library and test: Stream data to or from LMDB databases using the streamly library.
structured-mongoDB library: Structured MongoDB interface
superevent library and test: A simple opinionated event store implementation
Sysmon library: Sybase 15 sysmon reports processor
ta library: Transito Abierto: convenience library when using Takusen and Oracle.
TableAlgebra library: Ferry Table Algebra
Tables program: A client for Quill databases
tablestorage library: Azure Table Storage REST API Wrapper
Takusen programs: Database library with left-fold interface, for PostgreSQL, Oracle, SQLite, ODBC.
takusen-oracle library and programs: Database library with left-fold interface for Oracle.
TCache library and test: A Transactional cache with user-defined persistence
tcache-AWS library: tcache using Amazon Web Services as default persistence mechanism
tccli program: TokyoCabinet CLI interface
tds library and program: Pure Haskell TDS protocol implementation. Mainly for beam-mssql and beam-sybase
templatepg library: A PostgreSQL access library with compile-time SQL type inference
tempodb library: A small Haskell wrapper around the TempoDB api.
text-postgresql library and test: Parser and Printer of PostgreSQL extended types
tigerbeetle-hs library, program and test: A Haskell client library for Tigerbeetle database
tokyocabinet-haskell library and tests: Haskell binding of Tokyo Cabinet
tokyotyrant-haskell library: FFI bindings to libtokyotyrant
tonatona-google-server-api library and tests: tonatona plugin for google-server-api
tonatona-persistent-postgresql library and tests: tonatona plugin for accessing PostgreSQL database.
tonatona-persistent-sqlite library and tests: tonatona plugin for accessing Sqlite database.
traction library and test: Tools for postgresql-simple.
traildb library, program and benchmark: TrailDB bindings for Haskell
transfer-db library, program and test: ODBC database transfer
trek-app library, program and test: A PostgreSQL Database Migrator
trek-db library and test: A PostgreSQL Database Migrator
tripLL library: A very simple triple store
tx library: Persistent transactions on top of STM.
txt-sushi library and programs: The SQL link in your *NIX chain
typedquery library: Parser for SQL augmented with types
typson-beam library and test: Typson Beam Integration
typson-core library: Type-safe PostgreSQL JSON Querying
typson-esqueleto library and test: Typson Esqueleto Integration
typson-selda library and test: Typson Selda Integration
ulid library, program, test and benchmark: Implementation of ULID - Universally Unique Lexicographically Sortable Identifier
unliftio-pool library: Data.Pool generalized to MonadUnliftIO.
valiant library, tests and benchmark: Compile-time checked SQL for Haskell, runtime library
valiant-bluefin library and test: Bluefin effect adapter for valiant
valiant-cli library, program and test: Compile-time checked SQL for Haskell: CLI tool
valiant-conduit library and test: Conduit streaming adapter for valiant
valiant-effectful library and test: Effectful adapter for valiant
valiant-fused-effects library and test: Fused-effects adapter for valiant
valiant-mtl library and test: MTL-style adapter for valiant
valiant-pipes library and test: Pipes streaming adapter for valiant
valiant-plugin library and tests: Compile-time checked SQL for Haskell, GHC source plugin
valiant-streaming library and test: Streaming adapter for valiant (streaming library)
valiant-streamly library and test: Streamly streaming adapter for valiant
vcache library: semi-transparent persistence for Haskell using LMDB, STM
vcache-trie library: patricia tries modeled above VCache
wai-middleware-cache-redis library: Redis backend for wai-middleware-cache
wheb-mongo library: MongoDB plugin for Wheb
yeshql library: YesQL-style SQL database abstraction (legacy compatibility wrapper)
yeshql-core library and test: YesQL-style SQL database abstraction (core)
yeshql-hdbc library and test: YesQL-style SQL database abstraction (HDBC backend)
yeshql-postgresql-simple library and test: YesQL-style SQL database abstraction (postgresql-simple backend)
yesod-persistent library and test: Some helpers for using Persistent from Yesod.
yesod-session-redis library: Redis-Powered Sessions for Haskell
yxdb-utils library, programs and test: Utilities for reading and writing Alteryx .yxdb files
zoovisitor library and test: A haskell binding to Apache Zookeeper C library(mt) using Haskell Z project.

Database Design

ampersand program and test: Toolsuite for automated design of business processes.

Database Driver

postgis-trivial library and test: PostGIS extention driver based on postgresql-simple package

Database Testing Web

pg-harness library and program: REST service and library for creating/consuming temporary PostgreSQL databases
pg-harness-client library: Client library for pg-harness-server
pg-harness-server program: REST service for creating temporary PostgreSQL databases
tempgres-client library: Client library for Tempgres.

Databases

job library and test: Job queue
juandelacosa program: Manage users in MariaDB >= 10.1.1
mywatch program: Web application to view and kill MySQL queries
resourcet-extra library: ResourceT extras
sproxy2 program: Secure HTTP proxy for authenticating users via OAuth2
sq library, test and benchmark: High-level SQLite client.

DataBrew

stratosphere-databrew library: Stratosphere integration for AWS DataBrew.

Datadog

hs-opentelemetry-propagator-datadog library, test and benchmark: Datadog Propagator for OpenTelemetry

Dataflow

streamly library: Streaming data pipelines with declarative concurrency
streamly-core library: Streaming, parsers, arrays, serialization and more

Datamining

HasGP library: A Haskell library for inference using Gaussian processes
hslibsvm library: A FFI binding to libsvm.
HSvm library: Haskell Bindings for libsvm

DataPipeline

stratosphere-datapipeline library: Stratosphere integration for AWS DataPipeline.

DataSync

ihp-datasync library and test: IHP DataSync Framework
stratosphere-datasync library: Stratosphere integration for AWS DataSync.

DataZone

stratosphere-datazone library: Stratosphere integration for AWS DataZone.

Date

date-conversions library and test: Date conversions
discordian-calendar library: library for handling Discordian calendar dates
holidays library and test: Library for country public holidays

DAX

stratosphere-dax library: Stratosphere integration for AWS DAX.

Deadline

stratosphere-deadline library: Stratosphere integration for AWS Deadline.

Debian

cabal-debian library, program and test: Create a Debianization for a Cabal package
debian library, programs and test: Modules for working with the Debian package system
debian-build library and program: Debian package build sequence tools
dpkg library and test: libdpkg bindings
mbug library and program: download bugs mailboxes

Debug

ap-reflect library: Partial evaluation reflection a la simple-reflect.
asn1dump program: Dump ASN1 structure
box-tuples library: A hack to use GHC.Prim primitives in GHCi
bytedump library and program: Flexible byte dump helpers for human readers.
DataTreeView library: A GTK widget for displaying arbitrary Data.Data.Data instances
debug-diff library: Display a colorized diff between two Haskell values
debug-dump library: File-based debug output
debug-print library and tests: A structured alternative to Show
debug-time library and test: Debug.Trace equivalent for timing computations
debug-trace-file library and test: Like Debug.Trace but writing to files.
debug-trace-var library: You do not have to write variable names twice in Debug.Trace
DebugTraceHelpers library: Convenience functions and instances for Debug.Trace
eventlog-live library and program: Real-time monitoring for any Haskell application with little to no instrumentation
eventlog-live-influxdb library and program: Stream eventlog data into InfluxDB.
eventlog-live-otelcol library and program: Stream eventlog data to the OpenTelemetry Collector.
ghc-datasize library: Determine the size of data structures in GHC's memory
ghc-dup library: Explicitly prevent sharing
ghc-events library, program and tests: Library and tool for parsing .eventlog files from GHC
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC
ghc-heap-view library and test: Extract the heap representation of Haskell values and thunks
ghc-vis library: Live visualization of data structures in GHCi
ghci-history-parser library and tests: parse output of ghci ":history" command
ghcitui library, program and test: A Terminal User Interface (TUI) for GHCi
GHood library: A graphical viewer for Hood
graph-trace library: Trace the call graph of a program
graph-trace-dot library and program: Converts a graph-trace log into a DOT file for use with Graphviz
graph-trace-viz program: Converts a graph-trace log into an HTML document
guarded-allocation library: Memory allocation with added stress tests and integrity checks
haskell-stack-trace-plugin library, program and test: haskell-stack-trace-plugin
heapsize library and benchmark: Determine the size of runtime data structures
Hoed library and tests: Lightweight algorithmic debugging.
hood library and test: Debugging by observing in place
hood-off library: Dummy package to disable Hood without having to remove all the calls to observe
hood2 library: Debugging by observing in place
hpc-strobe library: Hpc-generated strobes for a running Haskell program
htrace library: Hierarchical tracing for debugging of lazy evaluation
jdi library and program: Implementation of Java Debug Interface
KiCS-debugger library and program: debug features for kics
KiCS-prophecy library and program: a transformation used by the kics debugger
linux-perf library and programs: Read files generated by perf on Linux
nonfree library: Free structures sans laws
print-debugger library: Debug print formatting library.
remote-debugger program: Interface to ghci debugger
repr-tree-syb library: Tree representation and pretty-printing of data structures based on SYB
show-please library: A wrapper type V with improved Show instances
simple-reflect library: Simple reflection of expressions containing variables
todo library: A replacement for undefined that gives warnings.
trace-call library: functions for logging the arguments and results of function calls
trace-function-call library: Easy lightweight tracing of function arguments and results for ad hoc debugging
traced library: Simple evaluation trace
tracer library and test: Tracing utilities for Functor/Applicative/Monad types
vacuum library: Graph representation of the GHC heap
vacuum-graphviz library: A library for transforming vacuum graphs into GraphViz output

Debuggers

dap library and test: A debug adaptor protocol library

Debugging

debug library, program and test: Simple trace-based debugger
debug-pp program: A preprocessor for the debug package
debugger-hs library and test: Write your GDB scripts in Haskell.
multiverse-debugging library, program and test: A framework for multiverse debugging
NoHoed library: Placeholder package to preserve debug ability via conditional builds
recover-rtti library and test: Recover run-time type information from the GHC heap

Decoding

double-x-encoding library and test: Encoding scheme to encode any Unicode string with only [0-9a-zA-Z_]

Decompiler

mrifk program: Decompiles Glulx files

Deep Learning

menoh library, programs and test: Haskell binding for Menoh DNN inference library
typedflow library: Typed frontend to TensorFlow and higher-order deep learning

Default

aeson-default library and test: Apply default value to FromJSON instacnes' Maybe fields
aeson-openapi-record-as-tuple library and test: Encode and decode Haskell records as JSON tuples
hkd-default library and test: Apply default value for optional field of HKD

Delay

schedule library and tests: Pure deterministic scheduled computations

DeltaQ

deltaq library, test and benchmark: Framework for ∆Q System Development
probability-polynomial library, test and benchmark: Probability distributions via piecewise polynomials

Demo

bowntz program: audio-visual pseudo-physical simulation of colliding circles
gearbox program: zooming rotating fractal gears graphics demo
lame-tester library and test: A strange and unnecessary selective test-running library
pathfindingcore library and test: A toy pathfinding library
Pup-Events-Demo programs: A networked event handling framework for hooking into other programs.
snowglobe program: randomized fractal snowflakes demo
wedged program: Wedged postcard generator.

Dependency Injection

cauldron library, program and tests: Dependency injection library
hs-di library, program and test: Dependency Injection library for Haskell

Dependent Types

aeson-dependent-sum library and test: JSON encoding/decoding for dependent-sum
Agda library and programs: A dependently typed functional programming language and proof assistant
Agda-executable program: Command-line program for type-checking and compiling Agda programs
agda-server program: Http server for Agda (prototype)
agda-snippets library and program: Render just the Agda snippets of a literate Agda file to HTML
agda-snippets-hakyll library: Literate Agda support using agda-snippets, for Hakyll pages.
agda-unused library, program and test: Check for unused code in an Agda project.
agda2lagda program and test: Translate .agda files into .lagda.tex files.
bin library: Bin: binary natural numbers.
compare-type library: compare types of any kinds in haskell
constrained-some library and test: Existential type that can be constrained
cubical program: Implementation of Univalence in Cubical Sets
dec library: Decidable propositions.
decidable library: Combinators for manipulating dependently-typed predicates.
dependent-enummap library and test: A generalisation of EnumMap to dependent types
dependent-map library: Dependent finite maps (partial dependent products)
dependent-sum library: Dependent sum type
eliminators library and test: Dependently typed elimination functions using singletons
fin library and test: Nat and Fin: peano naturals and finite numbers
helf program: Typechecking terms of the Edinburgh Logical Framework (LF).
hoq program: A language based on homotopy type theory with an interval type
idris library, programs and test: Functional Programming Language with Dependent Types
instance-map library and test: Template haskell utilities for helping with deserialization etc. of existential types
ivor library: Theorem proving library based on dependent type theory
known-lists library and test: Easy type-level lists with term-level membership proofs.
lens-typelevel library: Type-level lenses using singletons
list-witnesses library: Witnesses for working with type-level lists
MiniAgda library, program and test: A toy dependently typed programming language with type-based termination.
nanoAgda program: A toy dependently-typed language
open-typerep library, test and benchmark: Open type representations and dynamic types
PandocAgda library and program: Pandoc support for literate Agda
parameterized-utils library and test: Classes and data structures for working with data-kind indexed types
path-sing library: A singleton wrapper for the `path` library.
pisigma library and program: A dependently typed core language
poly-rec library: Polykinded extensible records
prim-uniq library: Opaque unique identifiers in primitive state monads
proof-assistant-bot library and program: Telegram bot for proof assistants
ral library and benchmark: Random access lists
ral-lens library: Length-indexed random access lists: lens utilities.
ral-optics library: Length-indexed random access lists: optics utilities.
reflection library and test: Reifies arbitrary terms into types that can be reflected back into terms
rzk library, program and tests: An experimental proof assistant for synthetic ∞-categories
show-type library: convert types into string values in haskell
singleton-bool library: Type level booleans
singleton-dict library: Typelevel balanced search trees via a singletonized Data.Map
singleton-nats library: Unary natural numbers relying on the singletons infrastructure.
singletons library and test: Basic singleton types and definitions
singletons-base library and test: A promoted and singled version of the base library
singletons-base-code-generator program: Code generator for the singletons-base test suite
singletons-th library: A framework for generating singleton types
Sit library, program and test: Prototypical type checker for Type Theory with Sized Natural Numbers
some library and test: Existential type: Some
symbols library: Symbol manipulation
tensor-safe library and program: Create valid deep neural network architectures
type-equality library: Data.Type.Equality compat package
type-fun library and test: Collection of widely reimplemented type families
type-level-bst library: type-level binary search trees in haskell
typeparams library: ...
uAgda program: A simplistic dependently-typed language with parametricity.
vec library, test and benchmark: Vec: length-indexed (sized) list
vec-lens library: Vec: length-indexed (sized) list: lens support
vec-optics library: Vec: length-indexed (sized) list: optics support

Derive-monoid

derive-monoid library, program and test: derive Semigroup/Monoid/IsList

Deriving

derivingvia-extras library: DerivingVia extras - Miscellaneous /via/ types.

Desktop

arbtt programs and test: Automatic Rule-Based Time Tracker
bustle programs and tests: Draw sequence diagrams of D-Bus traffic
credential-store library, program and test: Library to access secure credential storage providers
d-bus library, programs and test: Permissively licensed D-Bus client library
DBus library: D-Bus bindings
dbus library and test: A client library for the D-Bus IPC system.
dbus-client library: Monadic and object-oriented interfaces to DBus
dbus-core library: Low-level D-Bus protocol implementation
desktop-portal library and test: Desktop Portal.
fdo-notify library: Desktop Notifications client
fdo-trash library and program: Utilities related to freedesktop Trash standard.
git-checklist program: Maintain per-branch checklists in Git
gnome-keyring library: Bindings for libgnome-keyring
libnotify library: Bindings to libnotify library
place-cursor-at program: A utility for X11 that moves the mouse cursor using the keyboard
status-notifier-item library, programs and test: A wrapper over the StatusNotifierItem/libappindicator dbus specification
systranything library, program and test: Let you put anything in the system tray
todos library and program: Easy-to-use TODOs manager.
tracker library: Client library for Tracker metadata database, indexer and search tool
wacom-daemon library and programs: Manage Wacom tablet settings profiles, including Intuos Pro ring modes
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Desktop Environment

manatee library and program: The Haskell/Gtk+ Integrated Live Environment
manatee-all library and program: Virtual package to install all Manatee packages.
manatee-anything library and program: Multithread interactive input/search framework for Manatee
manatee-core library: The core of Manatee.
place-cursor-at program: A utility for X11 that moves the mouse cursor using the keyboard

Detective

stratosphere-detective library: Stratosphere integration for AWS Detective.

Development

accuerr library: Data type like Either but with accumulating error type
addLicenseInfo program: Adds license info to the top of a file.
ag-pictgen program: Attribute Grammar picture generation
agda-language-server library, program and test: An implementation of language server protocal (LSP) for Agda 2.
agda2lagda program and test: Translate .agda files into .lagda.tex files.
aihc-cpp library and test: Pure Haskell C preprocessor for aihc
aihc-parser library and test: Haskell parser
air library: air
air-extra library: air-extra
air-spec library: air spec helper
air-th library: air
alex program and tests: Alex is a tool for generating lexical analysers in Haskell
alex-meta library: Quasi-quoter for Alex lexers
alex-tools library: A set of functions for a common use case of Alex.
AlgorithmW program: Example implementation of Algorithm W for Hindley-Milner type inference.
anansi library and program: Simple literate programming preprocessor
anansi-hscolour library: Colorized looms for Anansi
anansi-pandoc library: Looms which use Pandoc to parse and produce a variety of formats.
anatomy library and program: Anatomy: Atomo documentation system
AndroidViewHierarchyImporter program: Android view hierarchy importer
apigen library, program and test: FFI API generator for several languages
apply-refact library, program and test: Perform refactorings specified by the refact library.
argon program and tests: Measure your code's complexity
arrowp program: preprocessor translating arrow notation into Haskell 98
arrowp-qq library, program and test: A preprocessor and quasiquoter for translating arrow notation
assembler library and program: Haskell Assembler
ats-format program: A source-code formatter for ATS
ats-pkg library and program: A build tool for ATS
ats-setup library: ATS scripts for Cabal builds
Aurochs program: Yet another parser generator for C/C++
auto-export library and test: Automatically add things to module export list
auto-extract library and test: Extract code segment to top level function
auto-import library and test: Automatically add import statements
auto-split library and test: Case splitting plugin
autopack library: Custom Setup to automate package modules discovery
avr-shake library: AVR Crosspack actions for shake build systems.
aws-lambda-runtime library and program: Haskell on AWS Lambda Runtime API
azurify library and program: A simple library for accessing Azure blob storage
b9 library, program and test: A tool and library for building virtual machine images.
backstop library, program and test: Backstop a target directory by source directories
bake library and program: Continuous integration system
base-compat-migrate library and program: Helps migrating projects to base-compat(-batteries).
base-feature-macros library: Semantic CPP feature macros for base
base-noprelude library: "base" package sans "Prelude" module
basic-lens library: Basic lens type and functions
bf-cata library
bhoogle program: Simple terminal GUI for local hoogle.
BigPixel program: Image editor for pixel art
bindings-bfd library: Bindings for libbfd, a library of the GNU `binutils'
BirdPP program: A preprocessor for Bird-style Literate Haskell comments with Haddock markup.
bisect-binary program: Determine relevant parts of binary data
bliplib library: Support code for Blip.
BNFC-meta library: Deriving Parsers and Quasi-Quoters from BNF Grammars
borel library and test: Metering System for OpenStack metrics provided by Vaultaire.
botpp library and program: Build tool for Lambdabot
breakpoint library and test: Set breakpoints using a GHC plugin
bson-lens library: BSON lenses
buffet library, program and test: Assembles many Dockerfiles in one.
bug library: Better alternatives to the "error" function
buildbox library: Rehackable components for writing buildbots and test harnesses.
buildbox-tools program: Tools for working with buildbox benchmark result files.
buildwrapper library, program and test: A library and an executable that provide an easy API for a Haskell IDE
bumper program: Automatically bump package versions, also transitively.
c-storable library: CStorable class
c2hs programs and tests: C->Haskell FFI tool that gives some cross-language type safety
c2hs-extra library: Convenient marshallers for complicate C types.
c2hsc library, program and test: Convert C API header files to .hsc and .hsc.helper.c files
cabal library: placeholder for Cabal package, you want the upper case Cabal
cabal-add library, program and tests: Extend Cabal build-depends from the command line
cabal-appimage library: Cabal support for creating AppImage applications
cabal-bounds library, program and test: A command line program for managing the dependency versions in a cabal file.
cabal-bundle-clib library: Bundling C/C++ projects in Cabal package made easy
cabal-cache library, program and test: CI Assistant for Haskell projects
cabal-cargs library, program and test: A command line program for extracting compiler arguments from a cabal file.
cabal-clean program: Remove outdated cabal build artefacts from `dist-newstyle`.
cabal-constraints program: Repeatable builds for cabalized Haskell projects.
cabal-dev programs: Manage sandboxed Haskell build environments
cabal-edit program: Cabal utility
cabal-file-th library and test: Template Haskell expressions for reading fields from a project's cabal file.
cabal-fmt library, program and tests: Format .cabal files
cabal-ghc-dynflags library: Conveniently configure GHC's dynamic flags for use with Cabal projects
cabal-ghci library and program: Set up ghci with options taken from a .cabal file
cabal-gild library, program and test: Formats package descriptions.
cabal-graphdeps program: Generate graphs of install-time Cabal dependencies
cabal-hoogle library, program and test: generate hoogle database for cabal project and dependencies
cabal-info library and program: Read information from cabal files
cabal-install-parsers library, tests and benchmark: Utilities to work with cabal-install files
cabal-lenses library: Lenses and traversals for the Cabal library.
cabal-matrix library and program: Matrix builds for cabal
cabal-meta library, program and test: build multiple packages at once
cabal-mon program: A monitor for cabal builds
cabal-plan library and program: Library and utility for processing cabal's plan.json file
cabal-scripts library: Shell scripts for support of Cabal maintenance
cabal-sign program: Sign and verify Cabal packages.
cabal2ghci program: A tool to generate .ghci file from .cabal
cabalQuery library and program: A simple tool to query cabal files.
cached-io library and test: A simple library to cache IO actions
cairo-appbase program: A template for building new GUI applications using GTK and Cairo.
cake library and program: A build-system library and driver
cake3 library and programs: Third cake the Makefile EDSL
calligraphy library, program and test: HIE-based Haskell call graph and source code visualizer
canteven-listen-http library: data types to describe HTTP services
canteven-log library: A canteven way of setting up logging for your program.
casa-client library: Client for Casa
casa-types library: Types for Casa
caseof library: Combinators for casing on constructors
castle program: A tool to manage shared cabal-install sandboxes.
catamorphism library and test: Exposes a Template Haskell function for generating catamorphisms.
CCA library and program: preprocessor and library for Causal Commutative Arrows (CCA)
cdeps library, program, test and benchmark: Extract dependencies from C code.
ceilometer-common library and test: Common Haskell types and encoding for OpenStack Ceilometer
cerberus library, program and test: Protect and control API access with cerberus
cgen library and programs: generates Haskell bindings and C wrappers for C++ libraries
change-monger library and program: Parse VCS changelogs into ChangeLogs
changelogged library, program and test: Changelog manager for Git projects.
checked-literals library and test: GHC plugin for checked numeric literals
checkmate library, program and tests: Generate checklists relevant to a given patch
cherry-core-alpha library and test: The core library for Cherry Haskell.
chr-data library: Datatypes required for chr library
chr-lang library and program: AST + surface language around chr
chr-parse library: Parsing for chr library
chr-pretty library: Pretty printing for chr library
chronos library, test and benchmark: A high-performance time library
chronos-bench library, program and benchmark: Benchmarking tool with focus on comparing results.
chs-deps library, test and benchmark: c2hs dependency analyzer
clash-vexriscv library and test: VexRiscv CPU core for use in Clash designs
clashilator library and program: Automated Clash to Verilator bridge
claude-gate library, program and test: Hook gate that reviews and records edits from nested Claude Code sessions
cli-setup library: Helper setup scripts for packaging command-line tools.
clod library, programs and test: Project file manager for Claude AI integrations
clone-all program: Clone all github repositories from a given user
Coadjute library: A generic build tool
codex library and program: A ctags file generator for cabal project dependencies.
coerce-with-substitution library: Coercions with improved type inference
colorize-haskell library and program: Highligt Haskell source
Commando library and program: Watch some files; Rerun a command
compiler-warnings library and test: Parser for common compiler warning formats
constable library and test: A safe interface for Const summarization
Contract library: Practical typed lazy contracts.
convex-schema-parser library, program and test: A type-safe client generator for Convex for both Rust and Python.
cookbook library: Tiered general-purpose libraries with domain-specific applications.
coordinate library and test: A representation of latitude and longitude
core-of-name library and program: Print the Core representation of a binding with a GHC plugin.
court programs: Simple and flexible CI system
cpphs library and program: A liberalised re-implementation of cpp, the C pre-processor.
creditmonad library and program: Reasoning about amortized time complexity
criterion library, program and tests: Robust, reliable performance measurement and analysis
criterion-cmp program: A simple tool for comparing in Criterion benchmark results
criterion-compare program: A simple tool for visualising differences in Criterion benchmark results
criterion-measurement library: Criterion measurement functionality and associated types
criterion-to-html program: Convert criterion output to HTML reports
crunghc program: A runghc replacement with transparent caching
csv-nptools programs: A collection of CSV tools
cutesetup program and test: Cute TUI for scaffolding nix devshells
darcs library, program and test: a distributed, interactive, smart revision control system
darcs-beta programs: a distributed, interactive, smart revision control system
darcs-cabalized program: David's Advanced Version Control System
darcs-fastconvert program: Import/export git fast-import streams to/from darcs.
darcs-scripts library: Shell scripts for support of darcs workflow
darcs2dot program: Outputs dependencies of darcs patches in dot format.
darcsden programs: Darcs repository UI and hosting/collaboration app (hub.darcs.net branch).
data-debruijn library: Fast and safe implementation of common compiler machinery.
data-structure-inferrer program: Program that infers the fastest data structure available for your program
data-util library: utilities for handle data
DataTreeView library: A GTK widget for displaying arbitrary Data.Data.Data instances
dbus-th-introspection library and program: Generate bindings for DBus calls by using DBus introspection and dbus-th
dead-code-detection program and test: detect dead code in haskell projects
debruijn library and test: de Bruijn indices and levels
debruijn-safe library: de Bruijn indices and levels
debug library, program and test: Simple trace-based debugger
debug-tracy library and program: More useful trace functions for investigating bugs
debuggable library and test: Utilities for making your applications more debuggable.
delimiter-separated library: Library for dealing with tab and/or comma (or other) separated files
demangler library, program and test: Demangler for C++ mangled names.
dependency library, test and benchmark: Dependency resolution for package management
derive library and program: A program and library to derive instances for data types
derive-gadt library and programs: Instance deriving for (a subset of) GADTs.
derive-is-data-con library and test: This package generates data constructor predicate functions
derive-lifted-instances library: Derive class instances though various kinds of lifting
derive-prim library and test: Derive Prim and PrimUnaligned
derive-topdown library and test: Derive type class instances
deriving-via-fun library and test: Deriving via first-class functions
dhall-check program: Check all dhall files in a project
dib library and program: A simple, forward build system.
dictionary-sharing library: Sharing/memoization of class members
difftodo library, programs and test: Generate todo lists from source code
disassembler library: Disassembler for X86 & AMD64 machine code
dockercook library, program and test: A build tool for multiple docker image layers
docvim library, program and tests: Documentation generator for Vim plug-ins
doxygen-parser library and test: Parse Doxygen XML output into a typed Haskell AST
DPM library and programs: Darcs Patch Manager
dr-cabal library and program: See README for more info
driving-classes-plugin library and test: Deriving without spelling out "deriving"
dump library and test: Dumps the names and values of expressions to ease debugging.
dump-core library: A plug-in for rendering GHC core
dupIO library, programs and test: Duplicate any closure
dwarfadt library and programs: High-level wrapper around the dwarf library
dynamic library: A dynamic type for Haskell
dyre library and test: Dynamic reconfiguration in Haskell
early library, program and test: Early return syntax in do-notation (GHC plugin)
edentv program: A Tool to Visualize Parallel Functional Program Executions
effectful-zoo library and test: Effectful effects for testing
elm-init program: Set up basic structure for an elm project
envstatus library, program and test: Display efficiently the state of the local environment
erd program and test: An entity-relationship diagram generator from a plain text description.
error-analyze library and test: Parse ghc and cabal error messages and give their causes for easier resolution
error-location library: error functions that show file location information
error-message library: Composable error messages.
eventlog2html library and program: Visualise an eventlog
extra library and test: Extra functions I use.
extract-dependencies library and program: Given a hackage package outputs the list of its dependencies.
extractelf program: Extract an ELF's metadata and sections into files
fail library: Forward-compatible MonadFail class
fast-tags library, program and test: Fast incremental vi and emacs tags.
fathead-util library: Utilities for working with DuckDuckHack's FatHead Instant Answers
fay library and programs: A compiler for Fay, a Haskell subset that compiles to JavaScript.
fay-base library: The base package for Fay.
file-location library and test: common functions that show file location information
file-modules library and program: Takes a Haskell source-code file and outputs its modules.
filepath-io-access library: IO Access for filepath
filepattern library and test: File path glob-like matching
firstify library and program: Defunctionalisation for Yhc Core
flamingra library and program: FlameGraphs of profiling
flexible-unlit library and program: A configurable reimplementation of unlit
flo library and program: Generate flow charts from your code base.
floskell library, program, test and benchmark: A flexible Haskell source code pretty printer
foreign-store library: Store a stable pointer in a foreign context to be retrieved later.
fourmolu library, program and test: A formatter for Haskell source code
fpco-api library and program: Simple interface to the FP Complete IDE API.
fresco-binding library: Fresco binding for Haskell
friendly program: Attempt to pretty-print any input
fugue library: A recapitulated prelude with minimal dependencies and profligate exports.
fused-effects-readline library and test: A readline-like effect and carrier for fused-effects
fusion-plugin library: GHC plugin to make stream fusion more predictable.
fusion-plugin-types library: Types for the fusion-plugin package.
gauge tests and benchmark: small framework for performance measurement and analysis
generic-env library: Generic Environment Generator
geodetic library and test: Geodetic calculations
gerrit library and test: A gerrit client library
ghc : The GHC API
ghc-api-compat library: GHC-API compatibility helpers
ghc-bench program and test: Benchmark a Haskell development system
ghc-build-stats library and program: A tool for analysing the output of ghc-build-stats-plugin
ghc-build-stats-plugin library: A plugin for collecting GHC build statistics
ghc-check library: detect mismatches between compile-time and run-time versions of the ghc api
ghc-clippy-plugin library: Override GHC error messages to the user's liking
ghc-core program: Display GHC's core and assembly output in a pager
ghc-core-html program: Core to HTML display
ghc-datasize library: Determine the size of data structures in GHC's memory
ghc-debug-client library: Useful functions for writing heap analysis tools which use ghc-debug.
ghc-debug-common library: ...
ghc-debug-stub library: ...
ghc-debugger library, program and test: A step-through machine-interface debugger for GHC Haskell
ghc-dump-core library: An AST and compiler plugin for dumping GHC's Core representation.
ghc-dump-tree library and program: Dump GHC's parsed, renamed, and type checked ASTs
ghc-dump-util library and program: Handy tools for working with ghc-dump dumps
ghc-eventlog-loopback library and test: Let an application read its own eventlog
ghc-events library, program and tests: Library and tool for parsing .eventlog files from GHC
ghc-events-analyze program and tests: Analyze and visualize event logs
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC
ghc-exactprint programs and test: ExactPrint for GHC
ghc-experimental library: Experimental features of GHC's standard library
ghc-gc-tune program: Graph performance of Haskell programs with different GC flags
ghc-generic-instances library: Derived instances of GHC.Generic of the GHC AST
ghc-hie library and test: HIE-file parsing machinery that supports multiple versions of GHC
ghc-imported-from library, programs and test: Find the Haddock documentation for a symbol.
ghc-lib library: The GHC API, decoupled from GHC versions
ghc-lib-parser library: The GHC API, decoupled from GHC versions
ghc-lib-parser-ex library, program and test: Programming with GHC parse trees
ghc-make program: Accelerated version of ghc --make
ghc-man-completion program: Generate a bash completion from the GHC manpage
ghc-mod library, programs, tests and benchmark: Happy Haskell Hacking
ghc-mtl library: An mtl compatible version of the Ghc-Api monads and monad-transformers.
ghc-parmake library, program and test: A parallel wrapper for 'ghc --make'.
ghc-paths library: Knowledge of GHC's installation directories
ghc-pkg-autofix program: Simple utility to fix BROKEN package dependencies for cabal-install.
ghc-pkg-lib library: Provide library support for ghc-pkg information
ghc-prof library, program and test: Library for parsing GHC time and allocation profiling reports
ghc-simple library: Simplified interface to the GHC API.
ghc-source-gen library and tests: Constructs Haskell syntax trees for the GHC API.
ghc-stack-annotations library and test: RTS Callstack annotation library
ghc-stack-profiler library: RTS Callstack profiler for GHC.
ghc-stack-profiler-core library and test: Thread sample types and serialisation logic for `ghc-stack-profiler`.
ghc-stack-profiler-speedscope library and program: Convert eventlog messages from `ghc-stack-profiler` into a speedscope json.
ghc-stdin library: Compile source code from the standard input
ghc-syb library: Data and Typeable instances for the GHC API.
ghc-syb-utils library: Scrap Your Boilerplate utilities for the GHC API.
ghc-tags program: Utility for generating ctags and etags with GHC API.
ghc-tags-core library: CTags and ETags from Haskell syntax tree.
ghc-tags-pipes library: Streaming interface for ghc-tags-core
ghc-tags-plugin library and program: A compiler plugin which generates tags file from GHC parsed syntax tree.
ghc-time-alloc-prof library, program and test: Library for parsing GHC time and allocation profiling reports
ghc-trace-events library and benchmarks: Faster traceEvent and traceMarker, and binary object logging for eventlog
ghc-usage library and program: Print minimal export lists
ghc-vis library: Live visualization of data structures in GHCi
ghci-dap library and program: ghci-dap is a GHCi having DAP interface.
ghci-history-parser library and tests: parse output of ghci ":history" command
ghci-ng program: Next generation GHCi
ghci-pretty library: colored pretty-printing within ghci
ghci-quickfix library and test: GHC plugin that writes errors to a file for use with quickfix
ghcid library, program and test: GHCi based bare bones IDE
ghcide library and program: The core of an IDE
ghcide-bench library, program and test: An LSP client for running performance experiments on HLS
ghcide-test-utils library: Test utils for ghcide
ghcprofview program: GHC .prof files viewer
ghczdecode program: Decode Z-encoded strings from GHC
ght library and program: Trivial routines for inspecting git repositories
giak program: Fuzzy finder for cabal executables
gipeda program: Git Performance Dashboard
git library and tests: Git operations in haskell
git-all program: Determine which Git repositories need actions to be taken
git-checklist program: Maintain per-branch checklists in Git
git-fmt program: Custom git command for formatting code.
git-gpush program: More intelligent push-to-GitHub utility.
git-jump program: Move a git branch
git-mediate program: Tool to help resolving git conflicts
git-monitor program: Passively snapshots working tree changes efficiently.
git-sanity library and program: A sanity checker for your git history.
git-vogue library, programs and test: A framework for pre-commit checks.
githash library and test: Compile git revision info into Haskell projects
github-tools library, programs and test: Various Github helper utilities.
gitHUD library, program and test: More efficient replacement to the great git-radar
githud library, programs and test: Heads up, and you see your GIT context
gitignore program: Apply GitHub .gitignore templates to already existing repositories.
gitignore-ospath library and test: Library for reading .gitignore files and filtering paths
gitrev library: Compile git revision info into Haskell projects
gitrev-typed library and test: Compile git revision info into Haskell projects
glean-hs library, program and test: Docker-free Haskell code indexing via Rust-native Glean substrate
graph-trace library: Trace the call graph of a program
graph-trace-dot library and program: Converts a graph-trace log into a DOT file for use with Graphviz
graph-trace-viz program: Converts a graph-trace log into an HTML document
graph-visit library: Graph walk abstraction
graphmod library and program: Present the module dependencies of a program as a "dot" graph.
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
grasp library, program and test: GRASP implementation for the AMMM project.
greencard-lib library: A foreign function interface pre-processor library for Haskell
grm library and program: grm grammar converter
gtk2hs-buildtools library and programs: Tools to build the Gtk2Hs suite of User Interface libraries.
guardian library, program and test: The border guardian for your package dependencies
guess-combinator library: Generate simple combinators given their type
GuiHaskell program: A graphical REPL and development environment for Haskell
hackage-cli library, program and test: CLI tool for Hackage
hackage-proxy program: Provide a proxy for Hackage which modifies responses in some way. (deprecated)
hackage-revdeps library and programs: List Hackage reverse dependencies
hackmanager library and program: Generate useful files for Haskell projects
haddock-leksah program: A documentation-generation tool for Haskell libraries
haddock-use-refs library and test: Eliminate warnings for names referred in Haddock only
hadolint library, programs and test: Dockerfile Linter JavaScript API
hake library and program: make tool. ruby : rake = haskell : hake
halberd library, program and test: A tool to generate missing import statements for Haskell modules.
halive library, program and tests: A live recompiler
haltavista program: looks for functions given a set of example input/outputs
hannahci program: Simple Continuous Integration/Deployment System
happraise program: A small program for counting the comments in haskell source
happy program and test: Happy is a parser generator for Haskell
happy-lib library: Happy is a parser generator for Haskell implemented using this library
happy-meta library: Quasi-quoter for Happy parsers
happybara library: Acceptance test framework for web applications
happybara-webkit library: WebKit Happybara driver
happybara-webkit-server library: WebKit Server binary for Happybara (taken from capybara-webkit)
HaRe program and test: the Haskell Refactorer.
harmony library, program and tests: A web service specification compiler that generates implementation and tests.
haskdogs program: Generate tags file for Haskell project and its nearest deps
haskell-ci library, program and test: Cabal package script generator for Travis-CI
haskell-dap library: Haskell implementation of the DAP interface data.
haskell-debug-adapter program and test: Haskell Debug Adapter.
haskell-debugger library, program and test: A step-through debugger for GHC Haskell
haskell-debugger-view library: Custom debug visualization instances for @haskell-debugger@
haskell-docs library, program and test: A program to find and display the docs and type of a name
haskell-docs-cli library, program and test: Search Hoogle and navigate Hackage from the command line.
haskell-formatter library, program and test: Haskell source code formatter
haskell-gi library and test: Generate Haskell bindings for GObject Introspection capable libraries
haskell-gi-base library: Foundation for libraries generated by haskell-gi
haskell-import-graph library and program: create haskell import graph for graphviz
haskell-language-server library, programs, tests and benchmark: LSP server for GHC
haskell-lsp library, program and test: Haskell library for the Microsoft Language Server Protocol
haskell-lsp-client library and program: A haskell package to build your own Language Server client.
haskell-lsp-types library: Haskell library for the Microsoft Language Server Protocol, data types
haskell-src-exts-simple library: A simplified view on the haskell-src-exts AST
haskell-stack-trace-plugin library, program and test: haskell-stack-trace-plugin
haskell-token-utils library and test: Utilities to tie up tokens to an AST
haskellscript program: Command line tool for running Haskell scripts with a hashbang.
hasktags library, program and test: Produces ctags "tags" and etags "TAGS" files for Haskell programs
hat library and programs: The Haskell tracer, generating and viewing Haskell execution traces
hayoo-cli program: Hayoo CLI
hbb program: Haskell Busy Bee, a backend for text editors.
hCM library, program and test: Conceptual modelling support for Haskell
hdevtools program: Persistent GHC powered background server for FAST haskell development tools
hdirect library and program: An IDL compiler for Haskell
hdocs library, program and test: Haskell docs tool
headergen program: Creates a header for a haskell source file.
heapsize library and benchmark: Determine the size of runtime data structures
hedgehog-generic library: GHC Generics automatically derived hedgehog generators
hein program: An extensible build helper for haskell, in the vein of leiningen.
help-esb library: A Haskell client for the Help.com team's ESB.
henforcer library and test: GHC plugin to enforce user specified rules on code.
hesh library and program: the Haskell Extensible Shell: Haskell for Bash-style scripts
hfd program: Flash debugger
hgdbmi library and tests: GDB Machine Interface: program-driven control of GDB
hgrev library: Compile Mercurial (hg) version info into Haskell code
hhp library, programs and test: Happy Haskell Programming
hi-file-parser library and test: Parser for GHC's *.hi files
hie-bios library, program and tests: Set up a GHC API session
hie-compat library: HIE files for GHC 8.8 and other HIE file backports
hie-core library, program and test: The core of an IDE
hiedb library, program and test: Generates a references DB from .hie files
hiedb-plugin library: See README on Github for more information
highWaterMark program: Memory usage statistics
hindent library, program, test and benchmark: Extensible Haskell pretty printer
hint-nix library: Helper for using hint with Nix package databases
hit program: Git like program in haskell
hit-graph library: Use graph algorithms to access and manipulate Git repos
hlint library and program: Source code suggestions
HListPP program: A preprocessor for HList labelable labels
hls-alternate-number-format-plugin library and test: Provide Alternate Number Formats plugin for Haskell Language Server
hls-brittany-plugin test: Integration with the Brittany code formatter
hls-cabal-fmt-plugin library and test: Integration with the cabal-fmt code formatter
hls-cabal-plugin library and test: Cabal integration plugin with Haskell Language Server
hls-call-hierarchy-plugin library and test: Call hierarchy plugin for Haskell Language Server
hls-change-type-signature-plugin library and test: Change a declarations type signature with a Code Action
hls-class-plugin test: Class/instance management plugin for Haskell Language Server
hls-code-range-plugin library and test: HLS Plugin to support smart selection range and Folding range
hls-eval-plugin library and test: Eval plugin for Haskell Language Server
hls-explicit-fixity-plugin library and test: Show fixity explicitly while hovering
hls-explicit-imports-plugin library and test: Explicit imports plugin for Haskell Language Server
hls-explicit-record-fields-plugin library and test: Explicit record fields plugin for Haskell Language Server
hls-floskell-plugin test: Integration with the Floskell code formatter
hls-fourmolu-plugin library and test: Integration with the Fourmolu code formatter
hls-gadt-plugin test: Convert to GADT syntax plugin
hls-graph library and test: Haskell Language Server internal graph API
hls-haddock-comments-plugin test: Haddock comments plugin for Haskell Language Server
hls-hlint-plugin test: Hlint integration plugin with Haskell Language Server
hls-module-name-plugin library and test: Module name plugin for Haskell Language Server
hls-ormolu-plugin library and test: Integration with the Ormolu code formatter
hls-overloaded-record-dot-plugin test: Overloaded record dot plugin for Haskell Language Server
hls-plugin-api library, test and benchmark: Haskell Language Server API for plugin communication
hls-pragmas-plugin library and test: Pragmas plugin for Haskell Language Server
hls-qualify-imported-names-plugin library and test: A Haskell Language Server plugin that qualifies imported names
hls-refactor-plugin test: Exactprint refactorings for Haskell Language Server
hls-refine-imports-plugin library and test: Refine imports plugin for Haskell Language Server
hls-rename-plugin test: Rename plugin for Haskell Language Server
hls-retrie-plugin test: Retrie integration plugin for Haskell Language Server
hls-selection-range-plugin library and test: HLS Plugin to support smart selection range
hls-semantic-tokens-plugin library and test: Call hierarchy plugin for Haskell Language Server
hls-splice-plugin test: HLS Plugin to expand TemplateHaskell Splices and QuasiQuotes
hls-stan-plugin test: Stan integration plugin with Haskell Language Server
hls-stylish-haskell-plugin test: Integration with the Stylish Haskell code formatter
hls-tactics-plugin test: Wingman plugin for Haskell Language Server
hls-test-utils library: Utilities used in the tests of Haskell Language Server
hmk library and program: A make alternative based on Plan9's mk.
hmumps program: Interpreter for the MUMPS langugae
holy-project library, programs and test: Start your Haskell project with cabal, git and tests.
homoiconic library and tests: Constructs FAlgebras from typeclasses, making Haskell functions homoiconic
hoobuddy program: Simple tool for fetching and merging hoogle data
hoogle library and program: Haskell API Search
hothasktags program: Generates ctags for Haskell, incorporating import lists and qualified imports
houseman library, program and test: A Haskell implementation of Foreman
hp2any-core library: Heap profiling helper library
hp2any-graph programs: ...
hp2any-manager program: A utility to visualise and compare heap profiles.
hp2pretty program: generate pretty graphs from heap profiles
hpack library, program and test: A modern format for Haskell packages
hpack-convert library, program and test: Convert Cabal manifests into hpack's package.yamls
hpack-dhall library, programs and test: Hpack with Dhall
hpaco program: Modular template compiler
hpaco-lib library: Modular template compiler library
hpage program: A scrapbook for Haskell developers
hpc-threshold library, program and test: Ensure the code coverage is above configured thresholds
hpp library, program and test: A Haskell pre-processor
hs library and program: GHC-toolchain installer broker
hs-di library, program and test: Dependency Injection library for Haskell
hs-highlight library, program and test: A tool to highlight terminal strings
hs-opentelemetry-instrumentation-auto library and test: Plugin for instrumenting an application
hs-pkg-config library: Create pkg-config configuration files
hs-speedscope library and program: Convert an eventlog into the speedscope json format
hs-tags program: Create tag files (ctags and etags) for Haskell code.
Hs2lib library, programs and tests: ...
hsb2hs program: Preprocesses a file, adding blobs from files as string literals.
hsbencher library and tests: Launch and gather data from Haskell and non-Haskell benchmarks.
hsc2hs program and test: A preprocessor that helps with writing Haskell bindings to C code
hscaffold library, program and test: Very simple file/directory structure scaffolding writer monad EDSL
hscurses-fish-ex program: hscurses swimming fish example
hsdev library, program and test: Haskell development library
hsenv program: Virtual Haskell Environment builder
hsfcsh programs: Incremental builder for flash
hsfilt program: Z-decoder.
hsimport library, program and test: Extend the import list of a Haskell source file
hslinks program: Resolves links to Haskell identifiers.
hsmin library, program and test: Haskell source code minifier for LLM token reduction
hspec-dirstream library and test: Helper functions to simplify adding integration tests.
hspec-setup library, program and test: Add an hspec test-suite in one command
hssourceinfo programs: get haskell source code info
HsSVN library: Partial Subversion (SVN) binding for Haskell
hstyle program: Checks Haskell source code for style compliance.
hsubconvert program: One-time, faithful conversion of Subversion repositories to Git
htags program: A Haskell98 parsing tags program similar to ctags.
http-download library and test: Verified downloads with retries
hub program: For multiplexing GHC installations and providing development sandboxes
hugs2yc library: Hugs Front-end to Yhc Core.
hw-ci-assist library, program and test: CI Assistant for Haskell projects
hw-polysemy library and test: Opinionated polysemy library
hw-prelude library: Opinionated prelude library
hwk program: Commandline text processing with Haskell functions
hwm library and program: Haskell Workspace Manager - Orchestrates Stack, Cabal, and HLS
hzenity library: Haskell interface to Zenity dialogs
ide-backend library, program and tests: An IDE backend library
ide-backend-common library: Shared library used be ide-backend and ide-backend-server
ide-backend-rts library: RTS for the IDE backend
ide-backend-server program: An IDE backend server
idringen library, program and test: A project manage tool for Idris.
ihaskell library, program and test: A Haskell backend kernel for the Jupyter project.
ihaskell-aeson library: IHaskell display instances for Aeson
ihaskell-basic library: IHaskell display instances for basic types
ihaskell-blaze library: IHaskell display instances for blaze-html types
ihaskell-charts library: IHaskell display instances for charts types
ihaskell-diagrams library: IHaskell display instances for diagram types
ihaskell-display library: IHaskell display instances for basic types
ihaskell-gnuplot library: IHaskell display instance for Gnuplot (from gnuplot package)
ihaskell-graphviz library: IHaskell display instance for GraphViz (external binary)
ihaskell-hatex library: IHaskell display instances for hatex
ihaskell-hvega library: IHaskell display instance for hvega types.
ihaskell-inline-r library: Embed R quasiquotes and plots in IHaskell notebooks.
ihaskell-juicypixels library: IHaskell - IHaskellDisplay instances of the image types of the JuicyPixels package.
ihaskell-magic library: IHaskell display instances for bytestrings
ihaskell-parsec library: IHaskell display instances for Parsec
ihaskell-plot library: IHaskell display instance for Plot (from plot package)
ihaskell-rlangqq library: a rDisp quasiquote to show plots from Rlang-QQ in IHaskell
ihaskell-symtegration library and test: IHaskell extension for making the use of Symtegration more seamless.
ImperativeHaskell library: A library for writing Imperative style haskell.
impl library: Framework for defaulting superclasses
implicit-hie library, program and test: Auto generate hie-bios cradles & hie.yaml
implicit-hie-cradle library and test: Auto generate hie-bios cradles
import-style-plugin library: Helps maintain consistency of imports
importify library, programs and test: Tool for haskell imports refactoring
imports library and test: Generate code for importing directories automatically
include-env library: Include the value of an environment variable at compile time
include-file library, test and benchmark: Inclusion of files in executables at compile-time.
infer-license library and test: Infer software license from a given license file
infer-upstream program: Find the repository from where a given repo was forked
intelli-monad library, programs and test: Type level prompt with LLMs via louter.
interlude library: Replaces some Prelude functions for enhanced error reporting
intero program and test: Complete interactive development program for Haskell
ip2location library: IP2Location Haskell package for IP geolocation.
ip2location-io library: IP2Location.io Haskell package for IP geolocation and domain WHOIS.
ip2proxy library: IP2Proxy Haskell package for proxy detection.
ipatch program: interactive patch editor
ipedb library, programs and test: Build databases with IPE data
ipython-kernel library and programs: A library for creating kernels for IPython frontends
iridium library and program: Automated Local Cabal Package Testing and Uploading
itanium-abi library and test: An implementation of name mangling/demangling for the Itanium ABI
itcli program: Issue Tracker for the CLI
iterm-show library and program: Enable graphical display of images inline on some terminals
iterm-show-JuicyPixels library: Orphan Show instances for JuciyPixels image types.
ja-base-extra library: Extra functions I require in base
jarfind library and program: Tool for searching java classes, members and fields in classfiles and JAR archives
java-character library: Functions to simulate Java's Character class.
javasf program and test: A utility to print the SourceFile attribute of one or more Java class files.
javav program and test: A utility to print the target version of Java class files.
jbi library and program: Just Build It - a "do what I mean" abstraction for Haskell build tools
jenga library and program: Generate a cabal freeze file from a stack.yaml
jl library and program: Functional sed for JSON
json-pointy library and tests: JSON Pointer (RFC 6901) parsing, access, and modification
jupyter library, programs and test: A library for creating and using Jupyter kernels.
kansas-lava-shake library: Shake rules for building Kansas Lava projects
kdesrc-build-extra program: Build profiles for kdesrc-build
kdesrc-build-profiles program: Build profiles for kdesrc-build
keera-hails-i18n library and tests: Rapid Gtk Application Development - I18N
keera-hails-mvc-controller library and tests: Haskell on Gtk rails - Gtk-based controller for MVC applications
keera-hails-mvc-environment-gtk library and tests: Haskell on Gtk rails - Gtk-based global environment for MVC applications
keera-hails-mvc-model-lightmodel library and tests: Rapid Gtk Application Development - Reactive Protected Light Models
keera-hails-mvc-model-protectedmodel library and tests: Rapid Gtk Application Development - Protected Reactive Models
keera-hails-mvc-solutions-config library and tests: Haskell on Gtk rails - Easy handling of configuration files
keera-hails-mvc-solutions-gtk library and tests: Haskell on Gtk rails - Solutions to recurrent problems in Gtk applications
keera-hails-mvc-view library and tests: Haskell on Gtk rails - Generic View for MVC applications
keera-hails-mvc-view-gtk library and tests: Haskell on Gtk rails - Gtk-based View for MVC applications
keera-hails-reactive-cbmvar library and tests: Reactive Haskell on Rails - CBMVars as reactive values
keera-hails-reactive-fs library and tests: Haskell on Rails - Files as Reactive Values
keera-hails-reactive-gtk library and tests: Haskell on Gtk rails - Reactive Fields for Gtk widgets
keera-hails-reactive-network library and tests: Haskell on Rails - Sockets as Reactive Values
keera-hails-reactive-polling library and tests: Haskell on Rails - Polling based Readable RVs
keera-hails-reactive-wx library and tests: Haskell on Rails - Reactive Fields for WX widgets
keera-hails-reactive-yampa library and tests: Haskell on Rails - FRP Yampa Signal Functions as RVs
keera-hails-reactivelenses library and tests: Reactive Haskell on Rails - Lenses applied to Reactive Values
keera-hails-reactivevalues library and tests: Haskell on Rails - Reactive Values
keiretsu program: Multi-process orchestration for development and integration testing
keiro-dsl library, program, tests and benchmarks: Typed specification toolchain for keiro services
kit program: A dependency manager for Xcode (Objective-C) projects
konnakol library and test: Formalising the rules of Konnakol, an Indian percussional art form.
labels library: Anonymous records via named tuples
lambdabot program: Lambdabot is a development tool and advanced IRC bot
lambdabot-core library: Lambdabot core functionality
lambdabot-haskell-plugins library: Lambdabot Haskell plugins
lambdabot-irc-plugins library: IRC plugins for lambdabot.
lambdabot-misc-plugins library: Lambdabot miscellaneous plugins
lambdabot-novelty-plugins library: Novelty plugins for Lambdabot
lambdabot-reference-plugins library: Lambdabot reference plugins.
lambdabot-social-plugins library: Social plugins for Lambdabot
lambdabot-telegram-plugins library and program: Lambdabot for Telegram
lambdabot-trusted library: Lambdabot trusted code.
lambdabot-utils library: Utility libraries for the advanced IRC bot, Lambdabot
lambdabot-xmpp program: Lambdabot plugin for XMPP (Jabber) protocol
Lambdajudge library and test: A library to easily host Haskell based programming competitions
lambdiff program: Diff Viewer
language-docker library and test: Dockerfile parser, pretty-printer and embedded DSL
language-dockerfile library, programs and tests: Dockerfile linter, parser, pretty-printer and embedded DSL
language-lustre library and program: A parser and AST for the Lustre language.
Lastik library: A library for compiling programs in a variety of languages
LazyVault program: A simple sandboxing tool for Haskell packages.
leksah library and program: Haskell IDE written in Haskell
lentil program and test: frugal issue tracker
lhs2html program: Compile lhs in bird style to md, html, hs.
lhs2tex program: Preprocessor for typesetting Haskell sources with LaTeX
lhs2TeX-hl program: Literate highlighter preprocessor for lhs2tex
libclang-bindings library and tests: libclang bindings
libgit library: Simple Git Wrapper
libhbb library, program and test: Backend for text editors to provide better Haskell editing support.
libiserv library: Provides shared functionality between iserv and iserv-proxy.
life-sync library, program and test: Synchronize personal configs across multiple machines.
line-indexed-cursor library, test and benchmark: Line-indexed file reader.
linearscan library: Linear scan register allocator, formally verified in Coq
linearscan-hoopl library and test: Makes it easy to use the linearscan register allocator with Hoopl
linux-perf library and programs: Read files generated by perf on Linux
liquidhaskell-cabal library: Liquid Haskell integration for Cabal and Stack
liquidhaskell-cabal-demo library and program: Demo of Liquid Haskell integration for Cabal and Stack
lit program: A simple tool for literate programming
llvm-analysis library and tests: A Haskell library for analyzing LLVM bitcode
llvm-tools library and programs: Useful tools built on llvm-analysis
located-base library and benchmark: Location-aware variants of partial functions
loch library and program: Support for precise error locations in source files
loch-th library: Support for precise error locations in source files (Template Haskell version)
logict-state library: Library for logic programming based on haskell package logict
lsp library, programs and test: Haskell library for the Microsoft Language Server Protocol
lsp-types library, program and test: Haskell library for the Microsoft Language Server Protocol, data types
lushtags program: Create ctags compatible tags files for Haskell programs
macosx-make-standalone program: Make a macosx app standalone deployable
make-package program: Make a cabalized package
makedo library: Helper for writing redo scripts in Haskell
markdown-unlit library, program and test: Literate Haskell support for Markdown
marmalade-upload library, programs and test: Upload packages to Marmalade
marvin library, programs and test: A framework for modular, portable chat bots.
MASMGen library and test: Generate MASM code from haskell
maybench library and programs: Automated benchmarking tool
mcp-hoogle library, program and test: MCP server exposing Hoogle search over local project dependencies
merkle-tree library and test: An implementation of a Merkle tree and merkle tree proofs of inclusion
MetaObject library: A meta-object system for Haskell based on Perl 6
microbench library: Microbenchmark Haskell code
minmax library: ...
miss library and test: A Haskell git implimentation
miss-porcelain library: Useability extras built on top of miss.
MissingK library: Useful types and definitions missing from other libraries
mm2 library: ...
mmsyn2 library: The library that can be used for multiple (Ord a) => a -> b transformations
mmsyn2-array library: A library that can be used for multiple Ord a => a -> b transformations.
mmsyn2-hashable library: A library that can be used for multiple Hashable a => a -> b transformations.
module-management library, program and test: Clean up module imports, split and merge modules
monad-log library: A simple and fast logging monad
monadic-bang library and test: GHC plugin to desugar ! into do-notation
monadlog library: A simple and fast logging monad
monadtransform library: A type-class for transforming monads (homomorphism) in a transformer
monoid-insertleft library: Some extension to the Foldable and Monoid classes.
monoidal-plugins library: A monoidal interface for aggregating GHC plugins
mps library: simply oo
mueval library, program and test: Safely evaluate pure Haskell expressions
multi-cabal library, program and test: A tool supporting multi cabal project builds.
multiprocess library: Multiprocess architecture library
murder library: MUtually Recursive Definitions Explicitly Represented
mustache library, program and tests: A mustache template parser library.
mywork library and program: Tool to keep track of what you have been working on and where.
names-th library: Manipulate name strings for TH
neil program: General tools for Neil
niv library, program and test: Easy dependency management for Nix projects
nixfmt library and programs: An opinionated formatter for Nix
nm library and program: Network Manager, binding to libnm-glib.
nofib-analyse program: Parse and compare nofib runs
nofib-analyze program: Parse and compare nofib runs
normalize-imports program and test: Sort and align Haskell import statements
NoSlow programs: Microbenchmarks for various array libraries
nothunks library and test: Examine values for unexpected thunks
NoTrace library and test: Remove all the functions come from Debug.Trace after debugging
nptools programs: A collection of random tools
nsis library and test: DSL for producing Windows Installer using NSIS.
nyan program: Bored? Nyan cat!
old-version library: Basic versioning library.
ollama-holes-plugin library: A typed-hole plugin that uses LLMs to generate valid hole-fits
omnifmt library and program: A pretty-printer wrapper to faciliate ease of formatting during development.
open-haddock program: Open haddock HTML documentation
optional library and test: Using type-classes for optional function arguments
optparse-text library and test: Data.Text helpers for optparse-applicative
organize-imports program: Organize scala imports
ormolu library, program and test: A formatter for Haskell source code
OrPatterns library: A quasiquoter for or-patterns
package-o-tron library and programs: Utilities for working with cabal packages and your package database
package-version library and test: A package for retrieving a package's version number.
package-vt program: Haskell Package Versioning Tool
pandoc-unlit program: Literate Haskell support for GitHub's Markdown flavor
panic library: A convenient way to panic.
pantry library, program and test: Content addressable Haskell package management
pantry-tmp library and test: Content addressable Haskell package management
paramtree library and test: Generate labelled test/benchmark trees from sets of parameters
parochial library and program: Help Manage project specific documentation
parser-helper program: Prints Haskell parse trees in JSON.
PartialTypeSignatures library: emulate partial type signatures with template haskell
pcap-conduit library: Conduit <-> libpcap
pdynload library: pdynload is polymorphic dynamic linking library.
phoityne program and test: Deprecated - ghci debug viewer with simple editor.
phoityne-vscode program: Haskell Debug Adapter for Visual Studio Code.
pier program: Yet another Haskell build system.
pier-core library: A library for writing forwards-declared build systems in haskell.
pinch library and test: An alternative implementation of Thrift for Haskell.
pinch-gen program: A code generator for the pinch Thrift library.
pinchot library and programs: Write grammars, not parsers
pinned-warnings library and test: Preserve warnings in a GHCi session
pisigma library and program: A dependently typed core language
pkggraph program: Package dependency graph for installed packages
placeholders library: Placeholders for use while developing Haskell code
podenv library, program and test: A container wrapper
pointful library and program: Pointful refactoring tool
policeman library, program and test: Haskell PVP version adviser
pollock library: Functionality to help examine Haddock information of a module.
polysemy-blockfrost library and test: Polysemy wrapper around the Blockfrost client
porter library: Implementation of the Porter stemming algorithm
pr-tools library, programs and test: Decentralized git pull request and code review flows
present library: Make presentations for data types.
prof2dot program: Convert GHC profiles into GraphViz's dot format
prof2pretty programs: generate pretty source from time/allocation profiles
profiterole program: Restructure GHC profile reports
profiteur library and program: Treemap visualiser for GHC prof files
progression library: Automates the recording and graphing of criterion benchmarks
project-forge library and test: A project initialization library
project-template library and test: Specify Haskell project templates and generate files
prototype library: prototype-based programming on Haskell
prune-juice library, program and test: Prune unused Haskell dependencies
psc-ide library, programs and test: Language support for the PureScript programming language
pseudomacros library: cpp-style built-in macros using Template Haskell
pure-io library: Pure IO monad.
purescript-bundle-fast program: A fast alternative to Purescript's `psc-bundle` to be used during development
python-pickle library, program and test: Serialization/deserialization using Python Pickle format.
QuickAnnotate library and program: Annotation Framework
quickbench library, program and test: quick & easy benchmarking of command-line programs
quickterm library and program: An interface for describing and executing terminal applications
radian library and test: Isomorphisms for measurements that use radians.
random-derive library: A Template Haskell helper for deriving Random instances
rapid library: Hot reload and reload-surviving values with GHCi
rapid-term library: External terminal support for rapid
rattle library, programs and test: Forward build system, with caching and speculation
reactive-banana-gi-gtk library and test: Simple reactive programming with GTK GObject Introspection
readme-lhs library, program and test: Literate programming support.
record-dot-preprocessor library, program and test: Preprocessor to allow record.field syntax
record-hasfield library and test: A version of GHC.Records as available in future GHCs.
record-wrangler library and test: Alter your records with ease
reduxwise library, program and test: Static analysis tool for Rust embedded systems complexity
refact library: Specify refactorings to perform with apply-refact
reflex-ghci library, program and test: A GHCi widget library for use in reflex applications
rehoo program: Rebuild default.hoo from many .hoo files in the current directory
releaser library and program: Automation of Haskell package release process
repl library: IRC friendly REPL library.
repl-alliance library: Currated set of plugins for REPL based development
require-callstack library and test: Propagate HasCallStack with constraints
requirements library: Abstraction to manage user defined Type Errors
resolve-trivial-conflicts program: Remove trivial conflict markers in a git repository
resource-embed program: Embed data files via C and FFI.
restyle library and program: Convert between camel case and separated words style.
retrie library, programs and test: A powerful, easy-to-use codemodding tool for Haskell.
ReviewBoard library and programs: Haskell bindings to ReviewBoard
rio-prettyprint library: Pretty-printing for RIO
risk-weaver library, programs and test: A DSL for Risk-oriented Object Detection Requirements
Rlang-QQ library and tests: quasiquoter for inline-R code
robin program: A build daemon for Haskell development
rock library, program and test: A build system for incremental, parallel, and demand-driven computations
rtk library, program and tests: Parser and rewrite facility generator from grammar specifications
ruler program: Ruler tool for UHC
ruler-core program
sandman program: Manages Cabal sandboxes to avoid rebuilding packages.
sarsi library and programs: A universal quickfix toolkit and his protocol.
sasha library and test: A staged lexer generator
scan program: lexical style suggestions for source code
schedevr programs: Marge schedules and show EVR
scion library and program: Haskell IDE library
scion-browser library and program: Command-line interface for browsing and searching packages documentation
scons2dot program: Generates graphviz file of scons dependency information
scope library: An interactive renderer for plotting time-series data
scope-cairo library and program: An interactive renderer for plotting time-series data
scotty-fay library and test: Fay integration for Scotty.
seihou-cli library, program and test: CLI for Seihou project scaffolding
seihou-core library and test: Core library for Seihou project scaffolding
seihou-okf-extension library, program and test: OKF documentation extension for Seihou registries
semdoc library and program: Evaluate code snippets in Literate Haskell.
sensei library, programs and test: Automatically run Hspec tests on file modifications
sequent-core library and programs: Alternative Core language for GHC plugins
sexp-show program: Produce a s-expression representation of Show values.
shake library, program and test: Build system library, like Make, but more accurate dependencies.
shake-ats library: Utilities for building ATS projects with shake
shake-bench library: Build rules for historical benchmarking
shake-c library: Library for building C code with shake
shake-cabal library: Shake library for use with cabal
shake-cabal-build program: Utility for building Shake build systems using Cabal sandboxes
shake-ccjs library: Shake rules for CCJS
shake-elm library: Elm builds in shake
shake-ext library: Helper functions for linting with shake
shake-futhark library: Dependency tracking for Futhark
shake-google-closure-compiler library: Shake rules for the Google closure compiler
shake-language-c library and tests: Utilities for cross-compiling with Shake
shake-literate library: Rules for building literate programs in shake
shake-minify library: Shake Minify Rules
shake-minify-css library: Shake rules for CSS
shake-pack library: Shake File Pack Rule
shake-path library: path alternatives to shake functions
shake-persist library and program: Shake build system on-disk caching
shake-plus library: Re-export of Shake using well-typed paths and ReaderT.
shake-plus-extended library: Experimental extensions to shake-plus
shaker library and program: simple and interactive command-line build tool
shakers library: Shake helpers.
shellish library: shell-/perl- like (systems) programming in Haskell
shelly library, programs and test: shell-like (systems) programming in Haskell
shelly-extra library and test: shelly features that require extra dependencies
shower library, program and test: Clean up the formatting of 'show' output
shuffle library and program: Shuffle tool for UHC
silvi library and test: A generator for different kinds of data.
simple-get-opt library: A simple library for processing command-line options.
simple-src-utils programs and tests: source code editing utilities
simple-text-format library and test: Simple text based format strings with named identifiers.
sizes library, program and test: Recursively show space (size and i-nodes) used in subdirectories
skeletons program: Manage project skeletons
slice-cpp-gen program: Generate C++ skeletons from slice files
smartconstructor library: A package exposing a helper function for generating smart constructors.
smuggler library, program and test: GHC Source Plugin that helps to manage imports
smuggler2 library and test: GHC Source Plugin that helps to minimise imports and generate explicit exports
snipcheck library: Markdown tester
SourceGraph program: Static code analysis using graph-theoretic techniques.
sourcemap library, test and benchmark: Implementation of source maps as proposed by Google and Mozilla.
sparsebit library: Sparse bitmaps for pattern match coverage
splint library: HLint as a GHC source plugin.
spy program and test: A compact file system watcher for Mac OS X, Linux and Windows
sqlc-hs library, program and test: Generate type-safe Haskell code from SQL via https://github.com/sqlc-dev/sqlc.
squeather library and test: Use databases with the version 3 series of the SQLite C library
stack library, program and tests: The Haskell Tool Stack
stack-bump program and test: Dead simple version bumping for hpack packages
stack-fix program: Console program used to fix Stack build errors automatically
stack-lib library: Wrapper to use stack as a library
stack-run program: An equivalent to cabal run for stack.
stack-run-auto library, programs and test: Initial project template from stack
stack-templatizer program: Generate a stack template from a folder.
stack-wrapper library and programs: Call ghc within stack by calling ghc
stack-yaml library and test: Parse a stack.yaml file
stackage library: Dummy package forcing installation of other Stackage packages
stackage-cabal library and programs: A CLI executable for cabal-based stackage commands
stackage-cli library and programs: A CLI library for stackage commands
stackage-sandbox library and program: Work with shared stackage sandboxes
stackage-setup library and program: An executable for downloading a Haskell setup
stacker library, program and test: Bump snapshots in stack.yaml files
standalone-derive-topdown library: ...
starter library: Develop applications without restarts
static-ls library, program and test: See README on Github for more information
staversion library, program and tests: What version is the package X in stackage lts-Y.ZZ?
stc-lang library, program and test: A library for implicit, monadic dataflow parallelism
steeloverseer library, program and test: A file watcher and development tool.
stepwise library
stgi library, program and tests: Educational implementation of the STG (Spineless Tagless G-machine)
strict-impl-params library: Plugin for making implicit parameters strict
structured-haskell-mode program: Structured editing Emacs mode for Haskell
styx program: A generator of nix files
subG library: Some extension to the Foldable and Monoid classes.
subG-instances library: Additional instances for the InsertLeft class from subG package.
summoner library, programs and test: ...
summoner-tui library and program: ...
sv2v program: SystemVerilog to Verilog conversion
swiss library: Basic functions for development with Core libraries and GHC boot libraries dependencies.
symon program: Minimal implementation(s) of the classic electronic memory game.
synapse-cc library, program and test: Unified compiler toolchain for Plexus backends
SyntaxMacros library: Syntax Macros in the form of an EDSL
tasty-bench library and benchmark: Featherlight benchmark framework
tasty-bench-fit library and test: Determine time complexity of a given function
tasty-papi test: Bencmarking using instruction counting
template-haskell-lift library: The 'Lift' typeclass.
template-haskell-quasiquoter library: The 'QuasiQuoter' interface.
testcontainers library and test: Docker containers for your integration tests.
testloop library: Quick feedback loop for test suites
th-abstraction library and test: Nicer interface for reified information about data types
th-deepstrict library and test: Check that datatypes are deep strict using Template Haskell.
th-fold library: TH fold generator
th-inline-io-action library: Simple inline IO action into compiled code using TH
th-lock library and test: Serialize compilation of modules with TH code modifing shared state
th-pprint library: Simplify and render Template Haskell
themplate program: Project templating tool
threadscope program: A graphical tool for profiling parallel Haskell programs.
ticket-management library, program and test: A basic implementation of a personal ticket management system
time-io-access library: IO Access for time
timelens library: Lenses for the time package
timeless library: An Arrow based Functional Reactive Programming library
timeline library and test: Data type representing a piecewise-constant function over time
tkyprof programs: A web-based visualizer for GHC Profiling Reports
tokstyle library, programs and test: TokTok C code style checker
trace-embrace library and test: Smart version of Debug.Trace module
tracetree library and program: Visualize Haskell data structures as edge-labeled trees
TraceUtils library: Functions that should have been in Debug.Trace
trackit program: A command-line tool for live monitoring
tracy library: Convenience wrappers for non-intrusive debug tracing
TransformersStepByStep program: Tutorial on monad transformers.
travis-meta-yaml library, program and test: .travis.yml preprocessor
travis-pogodi library and program: A better travis_wait
trawl program: A tool for finding haddocks
tricorder library, programs and test: Continuous Haskell build status, diagnostics, and tests via a shared daemon
TrivialMonadWithUnitType library: Trivial monad with Unit type
trurl library, program and test: Haskell template code generator
tuple-fields library, program and test: Access tuple fields using record dot syntax
tyfam-witnesses library: Provide proof witnesses for closed type family evaluation
typalyze programs: Analyzes Haskell source files for easy reference
type-prelude library: Partial port of prelude to the type level. Requires GHC 7.6.1.
typeof program: Small script for inferring types
uhc-light library and programs: Part of UHC packaged as cabal/hackage installable library
uhc-util library: UHC utilities
ui-command library and program: A framework for friendly commandline programs
unpacked-either library and test: An unpacked either data type
unpacked-maybe library and test: An unpacked maybe data type
unpacked-these library and test: An unpacked these data type
unpacked-validation library and test: An unpacked validation data type
updo programs: A style of maintaining and upgrading Haskell projects
urembed program: Ur/Web static content generator
urxml program: XML parser-printer supporting Ur/Web syntax extensions
UtilityTM library: Utility functions that are missing from the standard library
uuagc library and program: Attribute Grammar System of Universiteit Utrecht
uuagc-bootstrap library and program: Attribute Grammar System of Universiteit Utrecht
uuagc-cabal library: Cabal plugin for UUAGC
uuagd library and program: A debugger for the UUAG system.
vabal program and test: the cabal companion
vabal-lib library and test: Core algorithms and datatypes used by vabal
vacuum-cairo library: Visualize live Haskell data structures using vacuum, graphviz and cairo
vacuum-opengl library and program: Visualize live Haskell data structures using vacuum, graphviz and OpenGL.
vacuum-ubigraph library: Visualize Haskell data structures using vacuum and Ubigraph
vado library, programs and test: Runs commands on remote machines using ssh
vampire library and program: Analyze and visualize expression trees.
vcs-ignore library, program and tests: Library for handling files ignored by VCS systems.
vcsgui library and programs: GUI library for source code management systems
vcswrapper library and program: Wrapper for source code management systems
viewprof program: Text-based interactive GHC .prof viewer
virthualenv program: Virtual Haskell Environment builder
visual-graphrewrite library and program: Visualize the graph-rewrite steps of a Haskell program
visual-prof program: Create a visual profile of a program's source code
visualize-cbn program: Visualize CBN reduction
wai-make-assets library, program and test: Compiling and serving assets
watchit library, program and test: File change watching utility
weeder library, program and test: Detect dead code
workflow-types library and program: Automate keyboard\/mouse\/clipboard\/application interaction.
workflow-windows program and tests: Automate keyboard/mouse/clipboard/application interaction.
wxhnotepad program: An example of how to implement a basic notepad with wxHaskell
wyvern-diagrams library, program and test: Simple flowchart diagrams. Inspired by DRAKON.
xgboost-haskell library and programs: XGBoost library for Haskell.
ycextra library: Additional utilities to work with Yhc Core.
yesod-fast-devel program: Fast live-reloading for yesod applications.
yhccore library: Yhc's Internal Core language.
yi-contrib library: Add-ons to Yi, the Haskell-Scriptable Editor
zephyr library, program and test: Zephyr, tree-shaking for the PureScript language
zoom-cache library, program and test: A streamable, seekable, zoomable cache file format
zuul library, program and test: A zuul client library

Development Web

daino library and program: daino is a static site generator (SSG) using shake and pandoc

DevOps

deptrack-devops library: DepTrack applied to DevOps.
gothic library: A Haskell Vault KVv2 secret engine client
hercules-ci-agent library, programs and test: Runs Continuous Integration tasks on your machines
hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
hercules-ci-cnix-expr library and test: Bindings for the Nix evaluator

DevOpsGuru

stratosphere-devopsguru library: Stratosphere integration for AWS DevOpsGuru.

DFINITY

dfinity-radix-tree library, program and test: A generic data integrity layer.

Dhall

compdoc-dhall-decoder library: Allows you to write FromDhall instances for Compdoc
composite-dhall library and test: Dhall instances for composite records.
cpkg library, program and test: Build tool for C
dhall-fly library, program and test: Translate concourse config from Dhall to YAML
dhall-lex library, test and benchmark: Lexer for the Dhall language
dhall-recursive-adt library and tests: Convert recursive ADTs from and to Dhall
flag-dhall-instance library: FromDhall and ToDhall instances for flag.
servant-dhall library and test: Servant Dhall content-type
shake-dhall library and test: Dhall dependencies
version-natural-dhall-instance library: FromDhall and ToDhall instances for version-natural.

Dhall Pandoc

pandoc-dhall-decoder library: Decodes pandoc to dhall.

Diagnostics

pretty-loc library: Tracking and highlighting of locations in source files
trifecta library and test: A modern parser combinator library with convenient diagnostics

Diagram

asciidiagram library and program: Pretty rendering of Ascii diagram into svg or png.
hikchr library, program and test: Haskell wrapper for Pikchr, a PIC-like markup language for diagrams.

Diagrams

diagrams-input library: Parse raster and SVG files for diagrams

Diffing

pretty-diff library and test: Pretty printing a diff of two values.

Digest

murmur-hash library: MurmurHash2 implementation for Haskell.
murmurhash3 library: 32-bit non-cryptographic hashing

Dijkstra

dijkstra-simple library and test: A simpler Dijkstra shortest paths implementation

DirectoryService

stratosphere-directoryservice library: Stratosphere integration for AWS DirectoryService.

Disassembler

disassembler library: Disassembler for X86 & AMD64 machine code
hapstone library and test: Capstone bindings for Haskell
hdis86 library: Interface to the udis86 disassembler for x86 and x86-64 / AMD64
zydiskell library and test: Haskell language binding for the Zydis library, a x86/x86-64 disassembler.

Distributed Computing

AERN-Net library: Compositional lazy dataflow networks for exact real number computation
amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
api-tools library, programs, test and benchmark: DSL for generating API boilerplate and docs
arion-compose library, program and test: Run docker-compose with help from Nix/NixOS
aws library, programs and tests: Amazon Web Services (AWS) for Haskell
aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
aws-kinesis library and test: Bindings for Amazon Kinesis
aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
aws-sdk library and test: AWS SDK for Haskell
aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
butter library and tests: Monad Transformer for Asyncronous Message Passing
cctools-workqueue library: High-level interface to CCTools' WorkQueue library
courier library, programs and test: A message-passing library for simplifying network applications
DSTM library and programs: A framework for using STM within distributed systems
edenmodules library: Semi-explicit parallel programming library
failure-detector library and test: Failure Detectors implimented in Haskell.
grpc-etcd-client library: gRPC client for etcd
hadoop-streaming library and test: A simple Hadoop streaming library
HAppS-Data library: HAppS data manipulation libraries
HAppS-IxSet library
HAppS-Server library: Web related tools and services.
HAppS-State library: Event-based distributed state.
HAppS-Util library: Web framework
happstack library and program: The haskell application server stack + code generation
happstack-contrib library and program: Web related tools and services.
happstack-data library and program: Happstack data manipulation libraries
happstack-helpers library: Convenience functions for Happstack.
happstack-ixset library and program: Efficient relational queries on Haskell sets.
happstack-state library and program: Event-based distributed state.
happstack-static-routing library: Support for static URL routing with overlap detection for Happstack.
happstack-util library and program: Web framework
haskell-mpi library and programs: Distributed parallel programming in Haskell using MPI.
hdph library and programs: Haskell distributed parallel Haskell
hdph-closure library: Explicit closures in Haskell distributed parallel Haskell
hlivy library: Client library for the Apache Livy REST API
Holumbus-Distribution library and programs: intra- and inter-program communication
Holumbus-MapReduce library and programs: a distributed MapReduce framework
Holumbus-Storage library and programs: a distributed storage system
hs-asapo library, test and benchmarks: Haskell bindings for ASAP:O
interval-tree-clock library and test: Interval Tree Clocks
linode library and test: Bindings to the Linode API
LogicGrowsOnTrees library, programs, tests and benchmarks: a parallel implementation of logic programming using distributed tree exploration
LogicGrowsOnTrees-MPI library and programs: an adapter for LogicGrowsOnTrees that uses MPI
LogicGrowsOnTrees-network library, programs and test: an adapter for LogicGrowsOnTrees that uses multiple processes running in a network
LogicGrowsOnTrees-processes library, programs, test and benchmark: an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism
loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
mpi-hs library, programs and tests: MPI bindings for Haskell
mpi-hs-binary library, programs and test: MPI bindings for Haskell
mpi-hs-cereal library, programs and test: MPI bindings for Haskell
mpi-hs-store library, programs and test: MPI bindings for Haskell
net-concurrent library: Concurrent over the network execution library
protocol library: Model distributed system as type-level multi-party protocol
remote library: Cloud Haskell
sirkel library: Sirkel, a Chord DHT
sparkle library and program: Distributed Apache Spark applications in Haskell
tahoe-great-black-swamp library, programs and test: An implementation of the "Great Black Swamp" LAFS protocol.
task-distribution library, programs and test: Distributed processing of changing tasks
transient-universe library, programs and test: fully composable remote execution for the creation of distributed systems
vector-clock library and test: Vector clocks for versioning message flows
wolf library and programs: Amazon Simple Workflow Service Wrapper.

Distributed Systems

crdt library: Conflict-free replicated data types
deltaq library, test and benchmark: Framework for ∆Q System Development
hs-tango library and benchmarks: Bindings to the Tango Controls system
libraft library, program and test: Raft consensus algorithm
protocol library: Model distributed system as type-level multi-party protocol
ron library and benchmark: RON
ron-rdt library: Replicated Data Types (RON-RDT)
ron-schema library: RON-Schema
ron-storage library: RON Storage

Distributed-Computing

aws-sns-verify library and test: Parse and verify AWS SNS messages
MultiChor library: Type-safe and efficient choreographies with location-set polymorphism.

Distribution

arch-hs library, programs and test: Distribute hackage packages to archlinux
archlinux library: Support for working with Arch Linux packages.
archlinux-web library and programs: Website maintenance for Arch Linux packages
archnews program: Convert Arch Linux package updates in RSS to pretty markdown
arion-compose library, program and test: Run docker-compose with help from Nix/NixOS
asset-bundle library: A build-time Cabal library that bundles executables with assets
autopack library: Custom Setup to automate package modules discovery
bdcs library, programs and test: Tools for managing a content store of software packages
binembed library and program: Embed data into object files.
binembed-example program: Example project using binembed to embed data in object files.
Blueprint library: Preview of a new build system.
build-env library and program: Compute, fetch and install Cabal build plans into a local environment
cab library and program: A maintenance command of Haskell cabal packages
Cabal library: A framework for packaging Haskell software
cabal-appimage library: Cabal support for creating AppImage applications
cabal-audit program: Check how up-to-date your .cabal dependencies are.
cabal-auto-expose library: Build time library that autodetects exposed modules
cabal-build-programs library: Adds executable dependencies to the Cabal build
cabal-constraints program: Repeatable builds for cabalized Haskell projects.
cabal-debian library, program and test: Create a Debianization for a Cabal package
cabal-dependency-licenses program: Compose a list of a project's transitive dependencies with their licenses
cabal-dir program: show dist dir of 'cabal copy/install'
cabal-doctest library: A Setup.hs helper for running doctests
cabal-file library and program: Cabal file access
cabal-fix library, program and test: Fix for cabal files.
cabal-flatpak program: Generate a FlatPak manifest from a Cabal package description
cabal-helper library, program and tests: Give Haskell development tools access to Cabal project environment
Cabal-hooks library: API for the Hooks build-type
Cabal-ide-backend library and tests: A framework for packaging Haskell software
cabal-install library, program and tests: The command-line interface for Cabal and Hackage.
cabal-install-bundle program: The (bundled) command-line interface for Cabal and Hackage.
cabal-install-ghc72 program: Temporary version of cabal-install for ghc-7.2
cabal-install-ghc74 program: Temporary version of cabal-install for ghc-7.4
cabal-install-solver library and test: The solver component of cabal-install
cabal-macosx library, program and test: Cabal support for creating Mac OSX application bundles.
cabal-nirvana programs: Avoid Cabal dependency hell by constraining to known good versions. (deprecated)
cabal-pkg-config-version-hook library: Make Cabal aware of pkg-config package versions
cabal-plan-bounds program: Derives cabal bounds from build plans
cabal-progdeps program: Show dependencies of program being built in current directory
cabal-rpm program: RPM packaging tool for Haskell Cabal-based packages
cabal-setup program: The user interface for building and installing Cabal packages
cabal-sort programs: Topologically sort cabal packages
cabal-src programs: Alternative install procedure to avoid the diamond dependency issue.
Cabal-syntax library: A library for working with .cabal files
cabal-toolkit library: Helper functions for writing custom Setup.hs scripts.
cabal-uninstall program: Uninstall cabal packages
cabal-upload program: Command-line tool for uploading packages to Hackage
cabal2arch program: Create Arch Linux packages from Cabal packages.
cabal2doap program: Cabal to Description-of-a-Project (DOAP)
cabal2ebuild library and programs: make gentoo's .ebuild file from .cabal file
cabal2nix library, programs and test: Convert Cabal files into Nix build instructions.
cabal2spec library, program and test: Convert Cabal files into rpm spec files
cabalgraph program: Generate pretty graphs of module trees from cabal files
cabalmdvrpm library and program: Create mandriva rpm from cabal package
cabalrpmdeps library and programs: Autogenerate rpm dependencies from cabal files
cabalvchk program: Verify installed package version against user-specified constraints.
cabin program: Cabal binary sandboxes.
capri program: A simple wrapper over cabal-install to operate in project-private mode.
cartel library, programs and test: Specify Cabal files in Haskell
cblrepo program: Tool to maintain a database of CABAL packages and their dependencies
check-pvp programs: Check whether module and package imports conform to the PVP
chs-cabal library: Cabal with c2hs dependencies
codec-rpm library and test: A library for manipulating RPM files
darcs-graph program: Generate graphs of darcs repository activity
darcs-monitor program: Darcs repository monitor (sends email)
darcsden programs: Darcs repository UI and hosting/collaboration app (hub.darcs.net branch).
darcswatch programs: Track application of Darcs patches
delude library: Generalized the Prelude more functionally.
depends program and test: A simple configuration management tool for Haskell
dhall-to-cabal library, programs and tests: Compile Dhall expressions to Cabal files
diffcabal program: Diff two .cabal files syntactically
dist-upload library and program: Generate/Upload cabal package to Hackage.
distribution-nixpkgs library and test: Types and functions to manipulate the Nixpkgs distribution
distribution-opensuse library, program and test: Types, functions, and tools to manipulate the openSUSE distribution
dynamic-cabal library and tests: Access the functions from the Cabal library without depending on it
ecstatic library and program: Build "as static as possible" executable on Linux.
ekg-json library: JSON encoding of ekg metrics
executor library and tests: Shell helpers
exherbo-cabal library, program and test: Exheres generator for cabal packages
fbrnch program: Fedora packager tool to build package branches
fedora-dists library: Library for Fedora distribution versions
fedora-haskell-tools programs: Building and maintenance tools for Fedora Haskell
fedora-krb library: Kerberos for Fedora packagers
fedora-releases library: Library for Fedora release versions
franchise library: A package for configuring and building Haskell software
fsh-csv library: csv parser for fsh
gb-nix-cache library, program and test: Pure Nix binary cache protocol library
gdo program: recursive atomic build system
hackage-api library and test: An API binding to Hackage API
hackage-db library and programs: Access cabal-install's Hackage database via Data.Map
hackage-diff program: Compare the public API of different versions of a Hackage library
hackage-mirror library and program: Simple mirroring utility for Hackage
hackage-plot program: Generate cumulative graphs of hackage uploads
hackage-processing program: Process 00-index.tar.gz from Hackage
hackage-repo-tool program: Manage secure file-based package repositories
hackage-security library and test: Hackage security library
hackage-security-HTTP library: Hackage security bindings against the HTTP library
hackage-server programs and tests: The Hackage web server
hackage-sparks program: Generate sparkline graphs of hackage statistics
hackage-whatsnew program: Check for differences between working directory and hackage
hackage2hwn program: Convert Hackage RSS feeds to wiki format for publishing on Haskell.org
hackage2twitter program: Send new Hackage releases to Twitter
hackport library, program and tests: Hackage and Portage integration tool
haddocset program: Generate docset of Dash by Haddock haskell documentation tool
haskell-overridez program: Manage nix overrides for haskell packages
haskell-packages library: Haskell suite library for package management and integration with Cabal
haskell-platform-test program: A test system for the Haskell Platform environment
haskell-updater program: Rebuild Haskell dependencies in Gentoo
hellage programs: Distributed hackage mirror
hi library, program and tests: Generate scaffold for cabal project
highlight-versions program: Highlight package versions which differ from the latest version on Hackage
hmk library and program: A make alternative based on Plan9's mk.
hooks-exe library: cabal-install integration for Hooks build-type
hslackbuilder program: HSlackBuilder automatically generates slackBuild scripts from a cabal package
hub program: For multiplexing GHC installations and providing development sandboxes
hup library, program and tests: Upload packages and/or documentation to a hackage server
i3blocks-hs-contrib library and programs: Base i3blocks written in haskell
jailbreak-cabal program: Strip version restrictions from Cabal files
kif-parser program: Process KIF iOS test logs
language-nix library and test: Data types and functions to represent the Nix language
licensor library and program: A license compatibility helper
lscabal program: List exported modules from a set of .cabal files
mega-sdist program: Handles uploading to Hackage from mega repos
mkbndl program: Makes an OS X .app bundle from a binary.
mkcabal program: Generate cabal files for a Haskell project
nix-paths library: Knowledge of Nix's installation directories.
nix-tools library and programs: cabal/stack to nix translation tools
nixos-types library: this package is obsolete; see cabal2nix instead
nova-cache library, program and test: Pure-first Nix binary cache protocol library
nova-nix library, program and test: Windows-native Nix implementation in Haskell and C99
packdeps library and program: Check your cabal packages for lagging dependencies.
packunused program: Tool for detecting redundant Cabal package dependencies
populate-setup-exe-cache library: Empty Cabal package
precis library and program: Diff Cabal packages.
redo program: software build system, make replacement, implementation of djb's redo
rpm-nvr test: RPM package name-version-release data types
rpmbuild-order library, program and test: Sort RPM packages in dependency order
rts-loader library and programs: Dynamically load Haskell libraries
salve library and test: Semantic version numbers and constraints.
select-rpms library: Select a subset of RPM packages
self-extract library and program: A Haskell library to make self-extracting executables
simple-cabal library: Cabal compatibility wrapper library
stack-all program: CLI tool for building over Stackage major versions
stack-clean-old program: Clean away old stack build artifacts
stack-yaml library and test: Parse a stack.yaml file
stack2nix library, program and test: Convert stack.yaml files into Nix build instructions.
stackage-build-plan library and program: Calculate and print (in different formats) Stackage build plans
stackage-curator library, programs and test: Tools for curating Stackage bundles
stackage-install library and program: Secure download of packages for cabal-install
stackage-metadata library and program: DEPRECATED Grab current metadata for all packages
stackage-query program: Tool for querying Stackage
stackage-update library and program: Update your package index incrementally (requires git)
stackage-upload library and program: A more secure version of cabal upload which uses HTTPS
stackage2nix library, program and test: Convert Stack files into Nix build instructions.
standalone-haddock program: Generate standalone haddock documentation for a set of packages
superdoc library: Additional documentation markup and Unicode support
uusi library, programs and test: Tweak .cabal files
vabal program and test: the cabal companion
vabal-lib library and test: Core algorithms and datatypes used by vabal
velma library, program and test: Automatically add files to exposed-modules and other-modules.
xcframework library: Cabal hooks for producing an XCFramework from a Haskell library
yackage programs: Personal Hackage replacement for testing new packages.
yarn2nix library, programs and test: Convert yarn.lock files to nix expressions
zoom library and program: A rake/thor-like task runner written in Haskell

DLM

stratosphere-dlm library: Stratosphere integration for AWS DLM.

DMS

stratosphere-dms library: Stratosphere integration for AWS DMS.

DNS

dprox program and test: a lightweight DNS proxy server, compatible with dnsmasq-china-list
haeredes program: Confirm delegation of NS and MX records

DocDB

stratosphere-docdb library: Stratosphere integration for AWS DocDB.

DocDBElastic

stratosphere-docdbelastic library: Stratosphere integration for AWS DocDBElastic.

Docker

hspec-tmp-proc library: Simplify use of tmp-proc from hspec tests
tmp-proc library, program and tests: Run 'tmp' processes in integration tests
tmp-proc-example library and tests: Test a simple service with backends running on docker using tmp-proc
tmp-proc-postgres library and test: Launch a PostgreSQL database in docker using tmp-proc
tmp-proc-rabbitmq library and test: Launch RabbitMQ in docker using tmp-proc
tmp-proc-redis library and test: Launch Redis in docker using tmp-proc
tmp-proc-zipkin library and test: Launch ZipKin in docker using tmp-proc

Documentation

acme-operators library: Operators of base, all in one place!
activehs program: Haskell code presentation tool
activehs-base library: Basic definitions for activehs
archiver library and program: Archive supplied URLs in WebCite & Internet Archive
dash-haskell program: Convert package Haddock to Dash docsets (IDE docs)
doccheck program: Checks Haddock comments for pitfalls and version changes.
docidx program: Generate an HTML index of installed Haskell packages and their documentation.
Docs library: Documentation types library.
docstrings library: Docstrings for documentation in the repl
doxygen-parser library and test: Parse Doxygen XML output into a typed Haskell AST
embeddock library and program: Embed the values in scope in the haddock documentation of the module
embeddock-example library: Example of using embeddock.
haddock program and tests: A documentation-generation tool for Haskell libraries
haddock-api library and test: A documentation-generation tool for Haskell libraries
haddock-cheatsheet library: A documentation-only package exemplifying haddock markup features
haddock-library library and tests: Library exposing some functionality of Haddock.
haddock-test library: Test utilities for Haddock
hoogle-index program: Easily generate Hoogle indices for installed packages
hup library, program and tests: Upload packages and/or documentation to a hackage server
hyakko program: Literate-style Documentation Generator
pandoc-emphasize-code library, program and test: A Pandoc filter for emphasizing code in fenced blocks
pandoc-include-code library, program and test: A Pandoc filter for including code from source files
pandoc-markdown-ghci-filter library, program and test: Pandoc-filter to evaluate `code` section in markdown and auto-embed output.
pandoc-pyplot library, program and test: A Pandoc filter to include figures generated from Python code blocks
parochial library and program: Help Manage project specific documentation
pollock library: Functionality to help examine Haddock information of a module.
ronn library and test: Describe and render Ronn documentation
ronn-envparse library and test: Produce Ronn from OptEnvConf
ronn-opt-env-conf library and test: Produce Ronn from OptEnvConf
ronn-optparse-applicative library and test: Produce Ronn from OptEnvConf
scrod library, programs, test and benchmark: Worse Haskell documentation
snm library and program: The Simple Nice-Looking Manual Generator.
specup library, program and test: Manage the application of templates to custom yaml
tintin library, program and test: A softer alternative to Haddock

Domain Specific Language

NGLess library, program, test and benchmark: NGLess implements ngless, a DSL for processing sequencing data

Download Manager

manatee-curl library and program: Download Manager extension for Manatee.
manatee-terminal library and program: Terminal Emulator extension for Manatee.

DSL

arxiv-client library and test: Tiny client for the arXiv Atom API with a simple query DSL
control-dsl library and test: An alternative to monads in do-notation
DeepDarkFantasy library and tests: A DSL for creating neural network.
do-notation-dsl library and test: An alternative to monads
inferno-core library and test: A statically-typed functional scripting language
inferno-lsp library and program: LSP for Inferno
inferno-types library: Core types for Inferno
inferno-vc library: Version control server for Inferno
lazyboy library and test: An EDSL for programming the Game Boy.
portager library and test: DSL for configuring Gentoo portage
sixty-five-oh-two library and test: An eDSL for writing 65(C)02 bytecode.
souffle-dsl library and test: Haskell EDSL for Souffle
TransformeR library, program and test: eDSL in R for Safe Variable Transformarion

DSQL

stratosphere-dsql library: Stratosphere integration for AWS DSQL.

Dynamic Programming

HyloDP library, programs and test: A package for solving dynamic programming problems in Haskell

DynamoDB

stratosphere-dynamodb library: Stratosphere integration for AWS DynamoDB.

EBNF

ebnf-bff library and program: Parser combinators & EBNF, BFFs!

EC2

stratosphere-ec2 library: Stratosphere integration for AWS EC2.

ECR

stratosphere-ecr library: Stratosphere integration for AWS ECR.

ECS

mischief-ecs library, program, test and benchmarks: An opinionated archetype ECS engine built in Haskell.
stratosphere-ecs library: Stratosphere integration for AWS ECS.

Eden

edenmodules library: Semi-explicit parallel programming library
edentv program: A Tool to Visualize Parallel Functional Program Executions
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC

Editing

ige program: An keyboard-driven interactive graph editor

Editor

cursor library: Purely Functional Cursors
editpipe program: Edit stdin using an editor before sending to stdout.
fix-imports program and test: Program to manage the imports of a haskell module
haskelisp library: Write Emacs module in Haskell, using Emacs 25's Dynamic Module feature
Hedi library and program: Line oriented editor
hpage program: A scrapbook for Haskell developers
Hsed library and program: Stream Editor in Haskell
leksah library and program: Haskell IDE written in Haskell
manatee-editor library and program: Editor extension for Manatee.
module-management library, program and test: Clean up module imports, split and merge modules
nvim-hs library and test: Haskell plugin backend for neovim
nvim-hs-contrib library and test: Haskell plugin backend for neovim
nvim-hs-ghcid library and program: Neovim plugin that runs ghcid to update the quickfix list
wxhnotepad program: An example of how to implement a basic notepad with wxHaskell
yavie library and program: yet another visual editor
yi-contrib library: Add-ons to Yi, the Haskell-Scriptable Editor
yi-gtk library: The Haskell-Scriptable Editor, helper package
yi-monokai library: Monokai colour theme for the Yi text editor
yi-solarized library: Solarized colour theme for the Yi text editor
yi-spolsky library: Spolsky colour theme for the Yi text editor
yi-vty library: The Haskell-Scriptable Editor, helper package

Education

activehs program: Haskell code presentation tool
activehs-base library: Basic definitions for activehs
Advise-me library and programs: Assessment services for the Advise-Me project
clanki program: Command-line spaced-repetition software
Craft3e library and programs: Code for Haskell: the Craft of Functional Programming, 3rd ed.
crypto-enigma library, program and tests: An Enigma machine simulator with display.
dia-base library: An EDSL for teaching Haskell with diagrams - data types
dia-functions library: An EDSL for teaching Haskell with diagrams - functions
hscurses-fish-ex program: hscurses swimming fish example
I1M library and test: Code for the Haskell course taught at the University of Seville.
ideas library: Feedback services for intelligent tutoring systems
ideas-math program: Interactive domain reasoner for logic and mathematics
ideas-math-types library: Common types for mathematical domain reasoners
ideas-statistics program: Interactive domain reasoner for statistics
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.
io-machine library and test: Easy I/O model to learn IO monad
lambda-canvas library: Educational drawing canvas for FP explorers.
mathlist library: Math using lists, including FFT and Wavelet
memscript program: Command line utility for memorizing scriptures or any other text
onu-course library: Code for the Haskell course taught at the Odessa National University in 2012
producer library and test: Simple streaming datatype
pure-io library: Pure IO monad.
risc386 program: Reduced instruction set i386 simulator
smartword programs: Web based flash card for Word Smart I and II vocabularies
SoccerFun library and program: Football simulation framework for teaching functional programming
SoccerFunGL library and programs: OpenGL UI for the SoccerFun framework
TicTacToe library: A sub-project (exercise) for a functional programming course
turing library and tests: A simple simulator for Turing machines
twentefp library: Lab Assignments Environment at Univeriteit Twente
twentefp-eventloop-graphics library: Used as Lab Assignments Environment at the University of Twente
twentefp-graphs library: Lab Assignments Environment at Univeriteit Twente
twentefp-number library: Lab Assignments Environment at Univeriteit Twente
wxhnotepad program: An example of how to implement a basic notepad with wxHaskell

Educational

MBot library: Haskell interface for controlling the mBot educational robot
typerbole library and test: A typesystems library with exaggerated claims

Effect

classy-effects library and test: An interface for a handler-independent, typeclass-based effect system.
classy-effects-base library and test: An interface for a handler-independent, typeclass-based effect system.
classy-effects-th library and test: Automatic compliance with the classy-effects protocols
cleff library and tests: Fast and concise extensible effects
cleff-plugin library and test: Automatic disambiguation for extensible effects
control-dsl library and test: An alternative to monads in do-notation
cprng-aes-effect library: Run random effect using cprng-aes, a crypto pseudo number generator.
crypto-random-effect library: A random effect using crypto-random
data-effects library and test: A basic framework for effect systems based on effects represented by GADTs.
data-effects-core library and test: A basic framework for effect systems based on effects represented by GADTs.
data-effects-th library and test: Template Haskell utilities for the data-effects library.
do-notation-dsl library and test: An alternative to monads
effectful-tracing library, tests and benchmark: Tracing as a scoped effect, built on effectful, with OpenTelemetry interop.
effin library: A Typeable-free implementation of extensible effects
eveff library: Efficient effect handlers based on evidence translation.
extensible-effects library, test and benchmark: An Alternative to Monad Transformers
extensible-effects-concurrent library, programs, test and benchmark: Message passing concurrency as extensible-effect
free-er library and program: An extensible effects library
fused-effects-logger library and test: Logger effect for the `fused-effects` library
has-transformers library and test: This library 'Has' transformers
heftia-effects library, programs, test and benchmark: higher-order algebraic effects done right
log-effect library and program: An extensible log effect using extensible-effects
log-effect-syslog library: Syslog functions for log-effect
monad-effect library, test and benchmark: A fast and lightweight effect system.
mpeff library: Efficient effect handlers based on evidence-passing semantics
mysql-effect library: An extensible mysql effect using extensible-effects and mysql-simple
polysemy-readline library, program and test: Readline effect for polysemy.
random-eff library: A simple random generator library for extensible-effects
random-effin library: A simple random generator library for effin
readline-in-other-words library and program: Readline effect for in-other-words.
resource-effect library and test: A port of the package 'resourcet' for extensible effects.
system-random-effect library, test and benchmark: Random number generation for extensible effects.
THEff library: TH implementation of effects.

Effectful

effectful-st library: `ST`-style mutation for `effectful`.

Effects

co-log-polysemy library and program: Composable Contravariant Comonadic Logging Library
freer-indexed library: Freer indexed monad for type-level resource-aware effectual operations.
fx library and test: Modular effectful computations with explicit environments and errors
trans-fx-core library: Monadic effect framework
trans-fx-data library: Monadic effect framework
trans-fx-io library and test: Monadic effect framework

Efficient XML Pretty-printer

xml-prettify-text library, program, test and benchmark: XML pretty printer

EFS

stratosphere-efs library: Stratosphere integration for AWS EFS.

EKS

stratosphere-eks library: Stratosphere integration for AWS EKS.

ElastiCache

stratosphere-elasticache library: Stratosphere integration for AWS ElastiCache.

ElasticBeanstalk

stratosphere-elasticbeanstalk library: Stratosphere integration for AWS ElasticBeanstalk.

ElasticLoadBalancing

stratosphere-elasticloadbalancing library: Stratosphere integration for AWS ElasticLoadBalancing.

ElasticLoadBalancingV2

stratosphere-elasticloadbalancingv2 library: Stratosphere integration for AWS ElasticLoadBalancingV2.

Elasticsearch

stratosphere-elasticsearch library: Stratosphere integration for AWS Elasticsearch.

Electrs

electrs-client library and test: Electrs client library for Haskell

Elliptic Curves

pasta-curves library, program, test and benchmark: Provides the Pasta curves: Pallas, Vesta and their field elements Fp and Fq.

Elm

elm-street library, programs and test: Crossing the road between Haskell and Elm
elm-syntax library and test: Elm syntax and pretty-printing
elminator library and test: Generate ELM types/encoders/decoders from Haskell types.
haskell-to-elm library, programs and test: Generate Elm types and JSON encoders and decoders from Haskell types
json-spec-elm library and test: Elm code generate for `json-spec`.
json-spec-elm-servant library and test: Generated elm code for servant APIs.
servant-to-elm library, program and test: Automatically generate Elm clients for Servant APIs

Emacs

haskelisp library: Write Emacs module in Haskell, using Emacs 25's Dynamic Module feature

Email

attomail program and test: Minimal mail delivery agent (MDA) for local mail with maildir support
carboncopy program: Drop emails from threads being watched into special CC folder.
email-postmark library: ...
gmail-simple library: Simple library for Google Mail (GMail).
mail-pool library and program: Preconfigured email connection pool on top of smtp.
mailgun library: API binding for Mailgun
mailtrap library: Mailtrap API library.
mbox-tools programs: A collection of tools to process mbox files
mime-mail library and test: Compose MIME email messages.
newsletter library and program: A basic newsletter implimentation, using various backends.
newsletter-mailgun library: A mailgun backend for the newsletter package.
notmuch-haskell library and program: Binding for notmuch MUA library
purebred-email library, program and test: types and parser for email messages (including MIME)
ses-html library: Send HTML formatted emails using Amazon's SES REST API with blaze
ses-html-snaplet library: Snaplet for the ses-html package
snaplet-ses-html library: Snaplet for the ses-html package

Embedded

arduino-copilot library and test: Arduino programming in haskell using the Copilot stream DSL
atom library: An EDSL for embedded hard realtime applications.
atom-msp430 library: Convenience functions for using Atom with the MSP430 microcontroller family.
bloohm library, program and test: visual bloom filter for neotrellis m4 output
CarneadesDSL library and test: An implementation and DSL for the Carneades argumentation model.
CarneadesIntoDung library, program and test: A translation from the Carneades argumentation model into Dung's AFs.
copilot library and programs: A stream DSL for writing embedded C programs.
copilot-bluespec library and test: A compiler for Copilot targeting FPGAs.
copilot-c99 library and test: A compiler for Copilot targeting C99.
copilot-cbmc library: Copilot interface to a C model-checker.
copilot-core library and test: An intermediate representation for Copilot.
copilot-frp-sketch library: FRP sketch programming with Copilot
copilot-interpreter library and test: Interpreter for Copilot.
copilot-language library and test: A Haskell-embedded DSL for monitoring hard real-time distributed systems.
copilot-libraries library and test: Libraries for the Copilot language.
copilot-prettyprinter library: A prettyprinter of Copilot Specifications.
copilot-sbv library: A compiler for CoPilot targeting SBV.
copilot-theorem library and test: k-induction for Copilot.
copilot-visualizer library and programs: Visualizer for Copilot.
data-svd library, program and test: SVD (System view description) file handling
Dung library, program and tests: An implementation of the Dung argumentation frameworks.
ecu programs: Tools for automotive ECU development.
emhell library and programs: Embedded shell
fault-tree library: A fault tree analysis library.
hocd library, programs and test: OpenOCD Haskell interface
ImperativeHaskell library: A library for writing Imperative style haskell.
improve library: An imperative, verifiable programming language for high assurance applications.
ion library and program: EDSL for concurrent, realtime, embedded programming on top of Ivory
perfect-hash-generator library, programs and test: Perfect minimal hashing implementation in native Haskell
processor-creative-kit library: a creation kit for instruction sets and cpu simulators and development tools
reduxwise library, program and test: Static analysis tool for Rust embedded systems complexity
sketch-frp-copilot library: Sketch programming with Copilot
srec library: Parsing and processing s-records.
sunroof-compiler library: Monadic Javascript Compiler
sunroof-examples programs: Tests for Sunroof
sunroof-server library: Monadic Javascript Compiler - Server Utilities
sv2v program: SystemVerilog to Verilog conversion
vcd library: Reading and writing VCD files.
verilog library: Verilog preprocessor, parser, and AST.
zephyr-copilot library and test: Embedded programming in haskell using the Copilot stream DSL and Zephyr

EMR

stratosphere-emr library: Stratosphere integration for AWS EMR.

EMRContainers

stratosphere-emrcontainers library: Stratosphere integration for AWS EMRContainers.

EMRServerless

stratosphere-emrserverless library: Stratosphere integration for AWS EMRServerless.

Encoding

double-x-encoding library and test: Encoding scheme to encode any Unicode string with only [0-9a-zA-Z_]

EntityResolution

stratosphere-entityresolution library: Stratosphere integration for AWS EntityResolution.

Enumerator

attoparsec-enumerator library: Pass input from an enumerator to an Attoparsec parser.
attoparsec-text-enumerator library: (deprecated)
blaze-builder-enumerator library: Enumeratees for the incremental conversion of builders to bytestrings.
ChannelT library: Generalized stream processors
coroutine-enumerator library: Bridge between the monad-coroutine and enumerator packages.
enumerator library: Reliable, high-performance processing with left-fold enumerators
enumerator-fd library: Enumerator instances for monads-fd classes
enumerator-tf library: Enumerator instances for monads-tf classes
expat-enumerator library: Enumerator-based API for Expat
filesystem-enumerator library: Enumerator-based API for manipulating the filesystem.
folds library: Beautiful Folding
http-enumerator library and program: HTTP client package with enumerator interface and HTTPS support. (deprecated)
iterIO library: Iteratee-based IO with pipe operators
iterio-server library: Library for building servers with IterIO
json-enumerator library: Pure-Haskell utilities for dealing with JSON with the enumerator package. (deprecated)
libxml-enumerator library: Enumerator-based API for libXML's SAX interface
lzma-enumerator library and test: Enumerator interface for lzma/xz compression.
machines library and benchmark: Networked stream transducers
machines-attoparsec library and test: Parse machines streams with attoparsec parsers.
machines-encoding library: Transcode encodings with machines.
netstring-enumerator library: Enumerator-based netstring parsing
network-enumerator library: Enumerators for network sockets
pcap-enumerator library: Convert a pcap into an enumerator.
pipes-conduit library: Conduit adapters
pipes-core library: Compositional pipelines
pipes-extra library, programs, test and benchmarks: Various basic utilities for Pipes.
servant-conduit library and test: Servant Stream support for conduit.
servant-machines library and test: Servant Stream support for machines
twitter-enumerator library: Twitter API package with enumerator interface and Streaming API support.
xml-enumerator library and test: Pure-Haskell utilities for dealing with XML with the enumerator package. (deprecated)
xml-enumerator-combinators library and program: Parser combinators for xml-enumerator and compatible XML parsers.
yajl-enumerator library: Enumerator-based interface to YAJL, an event-based JSON implementation
zlib-enum program: Enumerator interface for zlib compression

Envars

rfc-env library: Environment variable support from the Robert Fischer Commons.

Environment

env-guard library: Conditionally running IO actions based on environment variables.
freckle-env library and test: Some extensions to the envparse library
mmzk-env library, programs and test: Read environment variables into a user-defined data type
SWMMoutGetMB library: A parser for SWMM 5 binary .OUT files

Error

polysemy-resume library and test: Polysemy error tracking

Error Exception Uniform

uniform-error library and test: Handling errors in the uniform framework

Error Handling

algebraic-graph-duoids library and tests: Duoid instances for the algebraic-graphs package
async-io-either library: Could be useful
bug library: Better alternatives to the "error" function
Dangerous library: Monads for operations that can exit early and produce warnings
duoidal-transformers library and test: Extending the tranformers package with duoids
duoids library and test: Unifying parallel and sequential operations
duoids-hedgehog library and tests: Unifying parallel and sequential operations
error library and test: The canonical error type
error-context library and test: Provides API for enriching errors with contexts
error-message library: Composable error messages.
error-util library: Set of utils and operators for error handling
errors library: Simplified error-handling
errors-ext library and test: `bracket`-like functions for `ExceptT` over `IO` monad.
exception-monads-fd library: Exception monad transformer instances for monads-fd classes.
exception-monads-tf library: Exception monad transformer instances for monads-tf classes.
exception-mtl library: Exception monad transformer instances for mtl classes.
exception-transformers library and test: Type classes and monads for unchecked extensible exceptions.
failable-list library: A list-like type for lazy streams, which might terminate with an error.
hs-opentelemetry-utils-exceptions library and test: Exception utilities for OpenTelemetry instrumentation
partial-handler library: A composable exception handler
pipes-errors library: Integration between pipes and errors
pipes-safe library: Safety for the pipes ecosystem
postgresql-error-codes library: PostgreSQL error codes
pretty-error library: Pretty error messages for runtime invariants
prim-spoon library, test and benchmark: Catch errors thrown from pure computations using primops.
railroad library and test: A railway oriented mini-DSL for unified error handling.
rescue library, tests and benchmark: More understandable exceptions
resumable-exceptions library: A monad transformer for resumable exceptions
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
spoon library: Catch errors thrown from pure computations.
spork library: Catch errors from pure computations in a Maybe/Either
tagged-exception-core library: Reflect exceptions using phantom types.
vary library and tests: Vary: Friendly and fast polymorphic variants (open unions/coproducts/extensible sums)

Error Reporting

diagnose library and tests: Beautiful error reporting done easily

Eternity

eternity-timestamped library: Automatic timestamping for Eternity

Eth

web3-tools library and test: Tools for working with Crypto/Web3

Ethereum

ethereum-analyzer library and test: A Ethereum contract analyzer.
ethereum-analyzer-cli library and programs: A CLI frontend for ethereum-analyzer.
ethereum-analyzer-deps library: Stripped dependencies of ethereum-analyzer.
ethereum-analyzer-webui library and program: A web frontend for ethereum-analyzer
eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding
evm-opcodes library, test and benchmark: Opcode types for Ethereum Virtual Machine (EVM)
hevm library, program, tests and benchmarks: Symbolic EVM Evaluator
web3-tools library and test: Tools for working with Crypto/Web3

ETL

DBFunctor library, program and test: DBFunctor - Functional Data Management => ETL/ELT Data Processing in Haskell

Eval.so

cruncher-types library and test: Request and Response types for Eval.so's API

Event-sourcing

eternity-timestamped library: Automatic timestamping for Eternity

Eventing

kiroku-cli library, program and test: Embeddable operator CLI for Kiroku
kiroku-metrics library, program and test: Metrics, health, and event-streaming HTTP endpoints for Kiroku
kiroku-otel library and test: OpenTelemetry W3C trace-context helpers for Kiroku event metadata
kiroku-store library, test and benchmarks: High-performance PostgreSQL event store
kiroku-store-migrations library, program and test: Schema migrations for kiroku-store
shibuya-kiroku-adapter library and test: Kiroku event store adapter for the Shibuya queue processing framework

Eventloop

eventloop library: A different take on an IO system. Based on Amanda's IO loop, ...

Events

stratosphere-events library: Stratosphere integration for AWS Events.

EventSchemas

stratosphere-eventschemas library: Stratosphere integration for AWS EventSchemas.

Eventsourcing

eternity library and test: Native event-sourcing database
eventful-core library and test: Core module for eventful
eventful-dynamodb library and test: Library for eventful DynamoDB event stores
eventful-memory library and test: In-memory implementations for eventful
eventful-postgresql library and test: Postgres implementations for eventful
eventful-sql-common library: Common library for SQL event stores
eventful-sqlite library and test: SQLite implementations for eventful
eventful-test-helpers library: Common module used for eventful tests
eventium-core library and test: Core module for eventium
eventium-memory library and test: In-memory implementations for eventium
eventium-postgresql library and test: Postgres implementations for eventium
eventium-sql-common library: Common library for SQL event stores
eventium-sqlite library and test: SQLite implementations for eventium
eventium-test-helpers library: Common module used for eventium tests
eventium-testkit library: Testing utilities for eventium
eventsource-api library: Provides an eventsourcing high level API.
eventsource-geteventstore-store library and test: GetEventStore store implementation.
eventsource-store-specs library: Provides common test specification for Store implementation.
eventsource-stub-store library and test: An in-memory stub store implementation.
message-db-temp library: Temporary message-db for integration testing

Eventstore

message-db-temp library: Temporary message-db for integration testing

Evidently

stratosphere-evidently library: Stratosphere integration for AWS Evidently.

EVS

stratosphere-evs library: Stratosphere integration for AWS EVS.

Example

example-haskell-project library and program: Example Haskell Project
huttons-razor program: Quick implemention of Hutton's Razor

Exception

throwable-exceptions library and test: throwable-exceptions gives the easy way to throw exceptions
util-exception library: Exceptional utilities

Exceptions

eio library and program: IO with Exceptions tracked on the type-level
exception-via library: DerivingVia for your hierarchical exceptions
exceptions library and test: Extensible optionally-pure exceptions
failable library: A 'Failable' error monad class to unify failure across monads that can fail
freckle-exception library and test: Some extensions to the annotated-exception library
general-allocate library: Exception-safe resource management in more monads
multi-except library and test: Multiple Exceptions
partial-handler library: A composable exception handler
patrol library and test: Sentry SDK
ratel library and test: Notify Honeybadger about exceptions.
ratel-wai library: Notify Honeybadger about exceptions via a WAI middleware.
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
tagged-exception-core library: Reflect exceptions using phantom types.

Executable

postgrest library, program and tests: REST API for any Postgres database
rasa library and test: A modular text editor

Experiment

experimenter library and test: Perform scientific experiments stored in a DB, and generate reports.
laborantin-hs library and program: an experiment management framework

Experimental

postgresql-replicant library, program and test: PostgreSQL logical streaming replication library
Quelea library: Programming with Eventual Consistency over Cassandra.
tigerbeetle-hs library, program and test: A Haskell client library for Tigerbeetle database
ZipperAG library: An implementation of Attribute Grammars using Functional Zippers

Extension

rasa-ext-bufs library: Rasa Ext for useful buffer utilities
rasa-ext-cmd library: Rasa Ext for running commands
rasa-ext-cursors library: Rasa Ext adding cursor(s)
rasa-ext-files library: Rasa Ext for filesystem actions
rasa-ext-logger library: Rasa Ext for logging state/actions
rasa-ext-slate library: Rasa extension for rendering to terminal with vty
rasa-ext-status-bar library: Rasa Ext for populating status-bar
rasa-ext-style library: Rasa Ext managing rendering styles
rasa-ext-views library: Rasa Ext managing rendering views
rasa-ext-vim library and test: Rasa Ext for vim bindings

Faas

micro-gateway library and program: A Micro service gateway.

Factory

boots library and test: IoC Monad in Haskell

Factual

Facts library: A collection of facts about the real world.
wedding-announcement program: a wedding announcement

Failure

attempt library: Concrete data type for handling extensible exceptions as failures. (deprecated)
control-monad-attempt library: Monad transformer for attempt. (deprecated)
control-monad-exception library: Explicitly typed, checked exceptions with stack traces
control-monad-exception-monadsfd library: Monads-fd instances for the EMT exceptions monad transformer
control-monad-exception-monadstf library: Monads-tf instances for the EMT exceptions monad transformer
control-monad-exception-mtl library: MTL instances for the EMT exceptions monad transformer
control-monad-failure library: A class for monads which can fail with an error. (deprecated)
control-monad-failure-mtl library: A class for monads which can fail with an error for mtl 1 (deprecated)
convertible-ascii library: convertible instances for ascii
convertible-text program: Typeclasses and instances for converting between types (deprecated)
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
exception-monads-fd library: Exception monad transformer instances for monads-fd classes.
exception-monads-tf library: Exception monad transformer instances for monads-tf classes.
exception-mtl library: Exception monad transformer instances for mtl classes.
exception-transformers library and test: Type classes and monads for unchecked extensible exceptions.
FailT library and tests: A 'FailT' monad transformer that plays well with 'MonadFail'
failure library: A simple type class for success/failure computations. (deprecated)
FailureT library: Failure Monad Transformer
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
partial-handler library: A composable exception handler
resumable-exceptions library: A monad transformer for resumable exceptions
safe-failure library: Library for safe functions (deprecated)
safe-failure-cme library: control-monad-exception Instances for safe-failure
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
success library: A version of Either specialised for encoding of success or failure
tagged-exception-core library: Reflect exceptions using phantom types.

Fake

fakedata library, test and benchmark: Library for producing fake data
fakedata-quickcheck library and test: Fake a -> Gen a

FakeData

fakedata library, test and benchmark: Library for producing fake data
fakedata-quickcheck library and test: Fake a -> Gen a

Fay

fay library and programs: A compiler for Fay, a Haskell subset that compiles to JavaScript.
fay-base library: The base package for Fay.
fay-dom library: DOM FFI wrapper library for Fay
fay-jquery library: jQuery bindings for Fay.
fay-ref library: Like IORef but for Fay.
fay-simplejson library: SimpleJSON library for Fay.
fay-text library: Fay Text type represented as JavaScript strings
fay-websockets library: Websockets FFI library for Fay
scotty-fay library and test: Fay integration for Scotty.
snaplet-fay library: Fay integration for Snap with request- and pre-compilation.

FCM

fcm-client library, program and test: Admin API for Firebase Cloud Messaging

Fedora

copr library and test: Haskell interface to the Fedora Copr system
fedora-packages library and tests: Haskell interface to the Fedora Packages webapp API.
mdapi library: Haskell interface to Fedora's mdapi

Feed

manatee-reader library and program: Feed reader extension for Manatee.

FFI

bindings library: Deprecated package.
bindings-apr library: Low level bindings to Apache Portable Runtime (APR)
bindings-apr-util library: Low level bindings to Apache Portable Runtime Utility (APR Utility)
bindings-audiofile library: Low level bindings to audiofile
bindings-bfd library: Bindings for libbfd, a library of the GNU `binutils'
bindings-cctools library: Bindings to the CCTools WorkQueue C library
bindings-codec2 library and program: Very low-level FFI bindings for Codec2
bindings-common library: This package is obsolete. Look for bindings-DSL instead.
bindings-directfb library: Project bindings-* raw interface to DirectFB
bindings-DSL library: FFI domain specific language, on top of hsc2hs.
bindings-eskit library: Bindings to ESKit.
bindings-EsounD library: Low level bindings to EsounD (ESD; Enlightened Sound Daemon)
bindings-fann library: Project bindings-* raw interface to FANN neural network library
bindings-friso library: Low level bindings for friso
bindings-glib library: Project bindings-* raw interface to GLib
bindings-gobject library: Low level bindings supporting GObject and derived libraries.
bindings-gpgme library: Project bindings-* raw interface to gpgme
bindings-gsl library: Project bindings-* raw interface to GNU GSL
bindings-gts library: Low level bindings supporting GTS, the GNU Triangulated Surface Library
bindings-hamlib library and program: Hamlib bindings for Haskell
bindings-hdf5 library: Project bindings-* raw interface to HDF5 library
bindings-K8055 library: Bindings to Velleman K8055 dll
bindings-levmar library: Low level bindings to the C levmar (Levenberg-Marquardt) library
bindings-libcddb library: Project bindings-* raw interface to libcddb
bindings-libffi library: Project bindings-* raw interface to libffi
bindings-libftdi library: Low level bindings to libftdi.
bindings-libpci library: Low level bindings to libpci
bindings-librrd library: Low level bindings to RRDtool
bindings-libstemmer library: Binding for libstemmer with low level binding.
bindings-libusb library: Low level bindings to libusb.
bindings-libzip library: Low level bindings to libzip.
bindings-lxc library: Direct Haskell bindings to LXC (Linux containers) C API.
bindings-parport library: parport bindings
bindings-posix library: Project bindings-* raw interface to Posix
bindings-ppdev library: PPDev bindings
bindings-sane library: FFI bindings to libsane
bindings-sc3 library: Low-level bindings to the SuperCollider synthesis engine library.
bindings-sqlite3 library: Project bindings-* raw interface to sqlite3
bindings-svm library: Low level bindings to libsvm.
bindings-uname library: Low-level binding to POSIX uname(3)
bindings-wlc library and test: Bindings against the wlc library
bindings-yices library: Bindings to the Yices theorem prover
cef3-raw library: Raw CEF3 bindings
cef3-simple library: Simple wrapper around cef3-raw
clingo library and programs: Haskell bindings to the Clingo ASP solver
clr-bindings library and test: Glue between clr-host and clr-typed
clr-host library and test: Hosting the Common Language Runtime
clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
clr-marshal library: Marshaling for the clr
clr-typed library and test: A strongly typed Haskell interface to the CLR type system
clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug
com : Haskell COM support library
const library: Read-only mutable primitives
crc32c library, test and benchmark: crc32c
curryrs library, test and benchmark: Easy to use FFI Bridge for using Rust in Haskell
fast-arithmetic library, test and benchmark: Fast functions on integers.
fixed-storable-array library: Fixed-size wrapper for StorableArray, ...
foreign-var library: Encapsulating mutatable state in external libraries
fresco-binding library: Fresco binding for Haskell
futhask-base library: Base library for libraries generated by futhask
ghc-byteorder library and test: "GHC.ByteOrder" API Compatibility Layer
gitlib library: API library for working with Git repositories
gitlib-cross library and test: Run tests between repositories
gitlib-libgit2 library and test: Libgit2 backend for gitlib
gitlib-sample library: Sample backend for gitlib showing the basic structure for any backend.
gitlib-test library: Test library for confirming gitlib backend compliance
gitlib-utils library: Generic utility functions for working with Git repositories
gmpint library: GMP integer conversions
H program: The Haskell/R mixed programming environment.
haroonga library: Low level bindings for Groonga.
haskell-mpi library and programs: Distributed parallel programming in Haskell using MPI.
hasktorch-ffi-tests library: Testing library for Hasktorch's FFI bindings
hasktorch-ffi-th library and test: Bindings to Torch
hasktorch-ffi-thc library and test: Bindings to Cutorch
hasktorch-types-th library: C-types for Torch
hasktorch-types-thc library: C-types for Cutorch
hcom : Haskell COM support library
heatshrink library and test: Compression and decompression using heatshrink
henet library: Bindings and high level interface for to ENet v1.3.9
hermes-json library and test: Fast JSON decoding via simdjson C++ bindings
hlibBladeRF library and test: Haskell binding to libBladeRF SDR library
hlibgit2 library and test: Low-level bindings to libgit2
hmatrix-gsl-stats library: GSL Statistics interface
hocilib library and test: FFI binding to OCILIB
hs-asapo library, test and benchmarks: Haskell bindings for ASAP:O
hs-tango library and benchmarks: Bindings to the Tango Controls system
hsrs library: Runtime support for hsrs-generated Haskell FFI bindings
inline-asm library, program and test: Inline some Assembly in ur Haskell!
inline-c library, program and test: Write Haskell source files including C code inline. No FFI required.
inline-c-cpp library and test: Lets you embed C++ code into Haskell.
inline-c-cuda library and test: Lets you embed CUDA code into Haskell.
inline-c-objc library and test: Lets you embed Objective-C code into Haskell.
inline-c-win32 library: Win32 API Context for the inline-c library
inline-java library, test and benchmark: Java interop via inline Java code in Haskell modules.
inline-python library, tests and benchmarks: Python interpreter embedded into haskell.
inline-r library, tests and benchmarks: Seamlessly call R from Haskell and vice versa. No FFI required.
IrrHaskell library: Haskell FRP binding to the Irrlicht game engine.
j library and test: J in Haskell
jarify library and program: Jarification of Haskell sources
jni library and test: Complete JNI raw bindings.
jvm library, test and benchmark: Call JVM methods from Haskell.
jvm-batching library, test and benchmark: Provides batched marshalling of values between Java and Haskell.
jvm-streaming library, test and benchmark: Expose Java iterators as streams from the streaming package.
leveldb-haskell library, programs and test: Haskell bindings to LevelDB
leveldb-haskell-fork library, programs and test: Haskell bindings to LevelDB
libpafe library and tests: Wrapper for libpafe
libversion library: Haskell binding to libversion
libxls library: Bindings to libxls
libxlsxwriter-hs library: Bindings to libxlsxwriter
linux-file-extents library and program: Retrieve file fragmentation information under Linux
llama-cpp-hs library and test: Haskell FFI bindings to the llama.cpp LLM inference library
lz4-hs library, test and benchmarks: lz4 bindings for Haskell
mangle library, program and test: Convert C++ type signatures to their mangled form
missing-foreign library: Convenience functions for FFI work
modulo library and program: Modular C code generator
MusicBrainz-libdiscid library: Binding to libdiscid by MusicBrainz
nitro library: Haskell bindings for Nitro
notmuch library and programs: Haskell binding to Notmuch, the mail indexer
odpic-raw library and test: Oracle Database Bindings
opencascade-hs library: Thin Wrapper for the OpenCASCADE CAD Kernel
OpenCL library and test: Haskell high-level wrapper for OpenCL
OpenCLWrappers library: The OpenCL Standard for heterogenous data-parallel computing
Pathfinder library: Relational optimiser and code generator
pthread library and test: Bindings for the pthread library.
ptrdiff library: Type-checked pointer diffs
rocksdb-haskell library and test: Haskell bindings to RocksDB
rocksdb-haskell-jprupp library and test: Haskell bindings for RocksDB
s2n-tls-ffi library and test: Low-level FFI bindings to the s2n-tls library
sc2-lowlevel library: Low-level Starcraft II API
sc2-support library: Support and utility library for sc2hs.
sc2hs library and program: An interface to the Starcraft II bot API
sednaDBXML library: Sedna C API XML Binding
smawk library: Linear time row minima for totally monotone matrices
sparkle library and program: Distributed Apache Spark applications in Haskell
statgrab library: Collect system level metrics and statistics
stdcxx library: Binding to Standard Template Library C++
storable-offset library: Storable offsets for record fields
storable-static-array library: Statically-sized array wrappers with Storable instances for FFI marshaling
symengine library and test: SymEngine symbolic mathematics engine for Haskell
symengine-hs library, program and test: SymEngine symbolic mathematics engine for Haskell
sysinfo library and test: Haskell Interface for getting overall system statistics
ViennaRNA-bindings library and test: ViennaRNA v2 bindings
wilton-ffi library: Haskell modules support for Wilton JavaScript runtime
wireform-core library, test and benchmarks: Shared FFI primitives for wireform format packages
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings
zbar library: zbar bindings in Haskell
zeromq-haskell library and test: Bindings to ZeroMQ 2.1.x
zeromq3-haskell library and test: Bindings to ZeroMQ 3.x
zeromq4-haskell library and test: Bindings to ZeroMQ 4.x
zeromq4-simple library: More constrained extensions to zeromq4-haskell

FFI Tools

fficxx library: Automatic C++ binding generation
fficxx-runtime library: Runtime for fficxx-generated library
futhask library and program: Generate Haskell wrappers for Futhark libraries
hacanon-light library: Template Haskell framework for automatic FFI code generation.
hasktorch-codegen library, program and test: Code generation tools for Hasktorch
HSFFIG library and programs: Generate FFI import declarations from C include files
j2hs program: j2hs
java-bridge programs: Bindings to the JNI and a high level interface generator.
java-bridge-extras library: Utilities for working with the java-bridge package.
java-reflect library: Tools for reflecting on Java classes.

File

binary-file library: read/write binary file
directory-ospath-streaming library and test: Stream directory entries in constant memory in vanilla IO
downloader library: A small, low-dependency library that provides turn-key file download over HTTP and HTTPS.
foscam-directory library and test: Foscam File format
foscam-filename library and test: Foscam File format
foscam-sort library, program and test: Foscam File format
hash-store library: Hash as cache
png-file library: read/write png file

File Manager

bogocopy program: Copy a directory tree, making zero-size sparse copies of big files.
manatee-filemanager library and program: File manager extension for Manatee.
RollingDirectory program and test: Limits the size of a directory's contents

FilePath

algebraic-path library and test: Flexible and simple path manipulation library
filepattern library and test: File path glob-like matching
strong-path library and test: Strongly typed paths in Haskell.

Filesystem

algebraic-path library and test: Flexible and simple path manipulation library
btrfs library and programs: Bindings to the btrfs API
conduit-vfs library and test: Virtual file system for Conduit; disk, pure, and in-memory impls.
conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
definitive-filesystem library: A library that enable you to interact with the filesystem in a definitive way.
disk-free-space library: Retrieve information about disk space usage
fileneglect library: Block thread until a file stops being modified
follow-file library and program: Be notified when a file gets appended, ...
fsnotify library, program and test: Cross platform library for file change notification.
fswatch library and program: File System watching tool with cli and slave functionalities.
hash-addressed library: Hash-addressed file storage
hash-addressed-cli library and program: Hash-addressed file storage app
hasherize library and program: Hash digests for files and directories
hpath : Support for well-typed paths
hpath-directory test: Alternative to 'directory' package with ByteString based filepaths
hpath-filepath : ByteString based filepath manipulation
hpath-io : High-level IO operations on files/directories
hpath-posix : Some low-level POSIX glue code, that is not in 'unix'
HsOpenSSL-x509-system library: Use the system's native CA certificate store with HsOpenSSL
linux-file-extents library and program: Retrieve file fragmentation information under Linux
memfd library: Open temporary anonymous Linux file handles
partly library, program and tests: Inspect, create, and alter MBRs.
path library and tests: Support for well-typed paths
path-binary-instance library: Binary instance for Path.
path-dhall-instance library: ToDhall and FromDhall instances for Path.
path-extensions library: Enumeration of common filetype extensions for use with the path library.
path-extra library and test: URLs without host information
path-io library and test: Interface to ‘directory’ package for users of ‘path’
path-like library: PathLike, FileLike and DirLike type classes for the Path library.
path-sing library: A singleton wrapper for the `path` library.
path-tagged library and test: A wrapper around the @path@ library, tagged with semantic name.
path-text-utf8 library: Read and write UTF-8 text files
path-utils library: Handful of simple utility functions for the path library.
pfile library, program and test: CLI program for profiles management.
plan-b library and test: Failure-tolerant file and directory editing
shikensu library and test: Run a sequence of functions on in-memory representations of files
streamly library: Streaming data pipelines with declarative concurrency
streamly-examples programs: Examples for Streamly
streamly-fsevents library and tests: File system event notification streams
strong-path library and test: Strongly typed paths in Haskell.
tahoe-great-black-swamp library, programs and test: An implementation of the "Great Black Swamp" LAFS protocol.
unionmount library and test: Union mount filesystem paths into Haskell datastructures
unix-recursive library, programs, test and benchmark: Fast and flexible primitives for recursive file system IO on Posix systems
within library: A value within another path.

Filter

fuzzily library and test: Filters a list based on a fuzzy string search
pandoc-markdown-ghci-filter library, program and test: Pandoc-filter to evaluate `code` section in markdown and auto-embed output.

Finance

ally-invest library and test: Ally Invest integration library
belgian-structured-communication library and test: parsing, ...
bgmax library: Parse BgMax-files
binance-exports library, program and test: Generate CSV Exports of your Binance Trade History.
bitcoin-api library and test: Provides access to the RPC API of Bitcoin Core
bitcoin-api-extra library and test: Higher level constructs on top of the bitcoin-api package
bitcoin-block library and test: Utility functions for manipulating bitcoin blocks
bitcoin-payment-channel library, test and benchmark: Instant, two-party Bitcoin payments
bitcoin-script library and test: Compilation, manipulation and decompilation of Bitcoin scripts
bitcoin-tx library and test: Utility functions for manipulating bitcoin transactions
bitcoin-types library and test: Provides consistent low-level types used commonly among Bitcoin implementations
bitx-bitcoin library and tests: A Haskell library for working with the BitX bitcoin exchange.
bnb-staking-csvs library, program and test: Generate CSV Exports of Your BNB Staking Rewards.
btc-lsp library, programs and test: Lightning service provider
buchhaltung library and program: Automates most of your plain text accounting data entry in ledger format.
coinbase-pro library, programs and test: Client for Coinbase Pro
cointracking-imports library and test: Generate CSV & XLSX files for importing into CoinTracking.
commodities library and tests: Library for working with commoditized amounts and price histories
cryptoconditions library and test: Interledger Crypto-Conditions
dollaridoos library: A newtype for monetary values
electrs-client library and test: Electrs client library for Haskell
eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding
eurofxref library: Free foreign exchange/currency feed from the European Central Bank
evm-opcodes library, test and benchmark: Opcode types for Ethereum Virtual Machine (EVM)
exchangealgebra library and tests: Exchange Algebra for bookkeeping and economic simulation
forex2ledger library, program and test: Print Forex quotes in Ledger format
gemini-exports library, program and test: Generate CSV Exports of Your Gemini Trades, Transfers, & Earn Transactions
haskell-opentimestamps library and test: Haskell implementation of OpenTimestamps
haskell-opentimestamps-client library and program: Haskell implementation of a basic OpenTimestamps client
haskoin library and test: Implementation of the Bitcoin protocol.
haskoin-core library and test: Bitcoin & Bitcoin Cash library for Haskell
haskoin-crypto library and test: Implementation of Bitcoin cryptographic primitives.
haskoin-node library and test: P2P library for Bitcoin and Bitcoin Cash
haskoin-protocol library and test: Implementation of the Bitcoin network protocol messages
haskoin-script library and test: Implementation of Bitcoin script parsing and evaluation
haskoin-store library, program and test: Storage and index for Bitcoin and Bitcoin Cash
haskoin-store-data library and test: Data for Haskoin Store
haskoin-util library and test: Utility functions for the Network.Haskoin project
haskoin-wallet library, program and test: Lightweight CLI wallet for Bitcoin and Bitcoin Cash
haslo library and programs: Loan calculator engine.
haspara library and tests: A library providing definitions to work with monetary values.
hax library and program: Haskell cash-flow and tax simulation
hledger library, program, test and benchmark: Command-line interface for the hledger accounting system
hledger-api program: Web API server for the hledger accounting tool
hledger-chart program: A pie chart image generator for the hledger accounting tool.
hledger-diff program: Compares the transactions in two ledger files.
hledger-flow library, program and test: An hledger workflow focusing on automated statement import and classification.
hledger-iadd library, program and test: A terminal UI as drop-in replacement for hledger add
hledger-interest program: computes interest for a given account
hledger-irr program: computes the internal rate of return of an investment
hledger-lib library and tests: A library providing the core functionality of hledger
hledger-makeitso library, program and test: An hledger workflow focusing on automated statement import and classification.
hledger-stockquotes library, program and test: Generate HLedger Price Directives From Daily Stock Quotes.
hledger-ui library and program: Terminal interface for the hledger accounting system
hledger-vty program: A curses-style console interface for the hledger accounting tool.
hledger-web library, program and test: Web user interface for the hledger accounting system
hq library and tests: Quantitative Library
HQu library, tests and benchmark: quantitative finance library
hquantlib library, program and test: HQuantLib is a port of essencial parts of QuantLib to Haskell
hquantlib-time library: HQuantLib Time is a business calendar functions extracted from HQuantLib
hstradeking library and program: Tradeking API bindings for Haskell
iban library and test: Validate and generate IBANs
lendingclub library: Bindings for the LendingClub marketplace API
LetsBeRational library: European option implied vol calculation
lnd-client library, program and test: Lightning Network Daemon (LND) client library for Haskell
money library and test: Money
netrium library and programs: Contract normaliser and simulator
ofx library and programs: Parser for OFX data
open-symbology library
penny library, programs and test: Extensible double-entry accounting system
penny-bin programs: Deprecated - use penny package instead
penny-lib programs: Deprecated - use penny package instead
pgstream library: Streaming Postgres bindings
prosper library: Bindings to the Prosper marketplace API
qif library and test: A simple QIF file format parser / printer
quantfin library and program: Quant finance library in pure Haskell.
rabocsv2qif library and program: A library and program to create QIF files from Rabobank CSV exports.
simfin library, programs and test: A library to fetch and parse financial data from the SimFin(+) API.
snelstart-import library, program and test: Import to snelstart.
solana-staking-csvs library, program and test: Generate CSV Exports of your Solana Staking Rewards.
tax library: Types and combinators for taxes
tax-ato library: Tax types and computations for Australia
tinkoff-invest-sdk library: gRPC based SDK for Tinkoff Invest API V2
tsparse library and programs: Parses U.S. federal Thrift Savings Plan PDF quarterly statements
UMM program: A small command-line accounting tool

Finance Network Bitcoin

rbpcp-api library: RESTful Bitcoin Payment Channel Protocol Servant API description

Financial

FpMLv53 library: A binding for the Financial Products Markup Language (v5.3)
hasloGUI program: Loan calculator Gtk GUI. Based on haslo (Haskell Loan) library.

Find

fuzzily library and test: Filters a list based on a fuzzy string search

FinSpace

stratosphere-finspace library: Stratosphere integration for AWS FinSpace.

FIS

stratosphere-fis library: Stratosphere integration for AWS FIS.

Fitness

fit library and test: FIT file decoder

Flatpak

desktop-portal library and test: Desktop Portal.
monomer-flatpak-example program: Monomer Flatpak Example Application.

Flight

flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.

Flink

flink-statefulfun library: Flink stateful functions SDK

FMS

stratosphere-fms library: Stratosphere integration for AWS FMS.

Folding

deferred-folds library and test: Abstractions over deferred folds

Font

brush-stroking library: Brush strokes document model and renderer
FontyFruity library: A true type file format loader
kb-text-shape library, program, test and benchmark: Unicode segmentation and shaping using kb_text_shape
load-font library and program: A cross platform library for loading bundled fonts into your application
sdl2-ttf library and program: Bindings to SDL2_ttf.

Forecast

stratosphere-forecast library: Stratosphere integration for AWS Forecast.

Foreign

aligned-foreignptr library: An aligned ForeignPtr type
AppleScript : Call AppleScript from Haskell, and then call back into Haskell.
arbb-vm library: FFI binding to the Intel Array Building Blocks (ArBB) virtual machine.
base-compat-constptr library: Backport of 'Foreign.C.ConstPtr'
bindings-libzip library: Low level bindings to libzip.
bindings-yices library: Bindings to the Yices theorem prover
bits-atomic library and program: Atomic bit operations on memory locations for low-level synchronization
bitwise-enum library, test and benchmark: Bitwise operations on bounded enumerations
bool8 library: Alternative Bool type stored as byte
c-enum library and test: To make a type corresponding to an enum of C language
c-storable-deriving library: Generate C-like storable instances from datatypes
c-struct library and test: To make a wrapper for struct of C language
C-structs library and tests: C-Structs implementation for Haskell
c2hs-extra library: Convenient marshallers for complicate C types.
cinvoke library: A binding to cinvoke.
cloudi library: Haskell CloudI API
cplusplus-th library and test: C++ Foreign Import Generation
cpython library and test: Bindings for libpython
cublas library: FFI bindings to the CUDA BLAS library
cuda library and program: FFI binding to the CUDA driver interface for programming NVIDIA GPUs
cufft library: Haskell bindings for the CUFFT library
cusolver library: FFI bindings to CUDA Solver, a LAPACK-like library
cusparse library: FFI bindings to the CUDA Sparse BLAS library
derive-storable library, test and benchmark: Derive Storable instances with GHC.Generics.
derive-storable-plugin library, test and benchmark: GHC core plugin supporting the derive-storable package.
emacs-module library: Utilities to write Emacs dynamic modules
enumset library: Sets of enumeration values represented by machine words
erlang library: FFI interface to Erlang.
erlang-ffi library and test: Send messages to an Erlang node using Haskell
errno library: a FFI utility
exiftool library: Haskell bindings to ExifTool
foreign library and test: A collection of helpers for ffi.
foreign-storable-asymmetric library: Types and instances for implementing a Storable with different peek and poke
gmpint library: GMP integer conversions
greencard library and program: GreenCard, a foreign function pre-processor for Haskell.
HaPy library: Haskell bindings for Python
hdis86 library: Interface to the udis86 disassembler for x86 and x86-64 / AMD64
hhwloc library: Bindings to https://www.open-mpi.org/projects/hwloc
hlibcpuid library and program: Bindings to https://github.com/anrieff/libcpuid
hlibev library: FFI interface to libev
hlibfam library: FFI interface to libFAM
hlibsass library and test: Low-level bindings to Libsass
hopencl library and test: Haskell bindings for OpenCL
hopenssl library and tests: FFI Bindings to OpenSSL's EVP Digest Interface
hoppy-docs library: C++ FFI generator - Documentation
hoppy-generator library: C++ FFI generator - Code generator
hoppy-runtime library: C++ FFI generator - Runtime support
hoppy-std library: C++ FFI generator - Standard library bindings
HPlot library and program: A minimal monadic PLplot interface for Haskell
hR library: R bindings and interface
hs-tango library and benchmarks: Bindings to the Tango Controls system
hsdns library and programs: Asynchronous DNS Resolver
hslua library, program and test: Bindings to Lua, an embeddable scripting language
hslua-aeson library and test: Allow aeson data types to be used with Lua.
hslua-annotations library and test: A type annotation generator for HSLua
hslua-classes library and test: Type classes for HsLua
hslua-cli library and program: Command-line interface for Lua
hslua-core library and test: Bindings to Lua, an embeddable scripting language
hslua-examples programs: Examples of how to combine Haskell and Lua.
hslua-list library and test: Opinionated, but extensible Lua list type.
hslua-marshalling library and test: Marshalling of values between Haskell and Lua.
hslua-module-doclayout library and test: Lua module wrapping Text.DocLayout.
hslua-module-path library and test: Lua module to work with file paths.
hslua-module-system library and test: Lua module wrapper around Haskell's System module.
hslua-module-text library and test: Lua module for text
hslua-module-version library and test: Lua module to work with version specifiers.
hslua-module-zip library and test: Lua module to work with file zips.
hslua-objectorientation library and test: Object orientation tools for HsLua
hslua-packaging library and test: Utilities to build Lua modules.
hslua-repl library and program: Isocline-based Lua REPL
hslua-typing library and test: Type specifiers for Lua.
hsrs library: Runtime support for hsrs-generated Haskell FFI bindings
hswip library: embedding prolog in haskell
hsyscall library: FFI to syscalls
hsyslog library and program: FFI interface to syslog(3) from POSIX.1-2001
htaglib library and test: Bindings to TagLib, audio meta-data library
j2hs program: j2hs
java-bridge programs: Bindings to the JNI and a high level interface generator.
java-bridge-extras library: Utilities for working with the java-bridge package.
java-reflect library: Tools for reflecting on Java classes.
lambda-bridge library and program: A bridge from Haskell (on a CPU) to VHDL on a FPGA.
language-c-inline library and test: Inline C & Objective-C code in Haskell for language interoperability
libffi library: A binding to libffi
libffi-dynamic library: LibFFI interface with dynamic bidirectional type-driven binding generation
libltdl library and program: FFI interface to libltdl
libnix library and test: Bindings to the nix package manager
libnvvm library and test: FFI binding to libNVVM, a compiler SDK component from NVIDIA
libxml-sax library and test: Bindings for the libXML2 SAX interface
LibZip library and test: Bindings to libzip, a library for manipulating zip archives.
lpeg library and test: LPeg – Parsing Expression Grammars For Lua
lua library and test: Lua, an embeddable scripting language
lua-arbitrary library: Arbitrary instances for Lua types.
marshal-contt library: A ContT-based wrapper for Haskell-to-C marshalling functions.
mathlink library: Write Mathematica packages in Haskell
matlab library and programs: Matlab bindings and interface
minimung program: Shows how to run grabber on Mac OS X
missing-py2 library and test: Haskell interface to Python
ncurses library: Modernised bindings to GNU ncurses
notmuch-haskell library and program: Binding for notmuch MUA library
nvvm library: FFI bindings to NVVM
pandoc-lua-marshal library and test: Use pandoc types in Lua
primesieve library and programs: FFI bindings for the primesieve library.
Salsa library: A .NET Bridge for Haskell
sdl2-gfx library and program: Haskell bindings to SDL2_gfx
sdl2-image library and program: Haskell bindings to SDL2_image
sdl2-mixer library and programs: Haskell bindings to SDL2_mixer
storable library: Storable type class for variable-sized data
storable-enum library: Wrapper that makes any Enum type Storable
storable-generic library and test: Derive Storable instances with GHC.Generics
storable-hetero-list library and test: about Storable and Hetero list
storable-peek-poke library and test: class Sizable, Peek and Poke
storable-record library and program: Elegant definition of Storable instances for records
storable-tuple library: Storable instance for pairs and triples
tasty-hslua library: Tasty helpers to test HsLua.
tasty-lua library and test: Write tests in Lua, integrate into tasty.
Thrift library: Haskell bindings for the Apache Thrift RPC system
thrift library and test: Haskell bindings for the Apache Thrift RPC system
timezone-detect library and test: Haskell bindings for the zone-detect C library; plus tz-aware utils.
winerror : Error handling for foreign calls to the Windows API.
yajl library: Bindings for YAJL, an event-based JSON implementation
zbar library: zbar bindings in Haskell

Foreign Binding

emacs-module library: Utilities to write Emacs dynamic modules
libxslt library: Binding to libxslt
rdtsc-enolan library: Binding to sources of high-efficiency, high-precision, ...
sdl2-ttf library and program: Bindings to SDL2_ttf.
souffle-haskell library, test and benchmark: Souffle Datalog bindings for Haskell
sundown library: Bindings to the sundown markdown library
upskirt library: Binding to upskirt

Formal Languages

ADPfusion library, programs and test: Efficient, high-level dynamic programming.
ADPfusionForest library, programs, test and benchmark: Dynamic programming on tree and forest structures
ADPfusionSet library and test: Dynamic programming for Set data structures.
Forestry library, program, test and benchmark: Comparison of trees and forests.
ForestStructures library, test and benchmark: Tree- and forest structures
FormalGrammars library and test: (Context-free) grammars in formal language theory
GenussFold library, program and test: MCFGs for Genus-1 RNA Pseudoknots
GrammarProducts library, program and test: Grammar products and higher-dimensional grammars
language-toolkit library and programs: A set of tools for analyzing languages via logic and automata
libriscv library, program and test: A versatile, flexible and executable formal model for the RISC-V architecture.
lindenmayer library: L-systems in Haskell
sequitur library, program, test and benchmark: Grammar-based compression algorithms SEQUITUR
smt2-parser library and test: A Haskell parser for SMT-LIB version 2.6

Formal Methods

acl2 library: Writing and calling ACL2 from Haskell.
afv program: Infinite state model checking of iterative C programs.
atp library and tests: Interface to automated theorem provers
boolector library and tests: Haskell bindings for the Boolector SMT solver
CSPM-CoreLanguage library: Definition of a CSP core-language.
CSPM-cspm library and program: cspm command line tool for analyzing CSPM specifications.
CSPM-FiringRules library: Firing rules semantic of CSPM
CSPM-Frontend library: A CSP-M parser compatible with FDR-2.91
CSPM-Interpreter library: An interpreter for CSPM
CSPM-ToProlog library: some modules specific for the ProB tool
dove library: The Dove verification language.
g2 library, programs and tests: Haskell symbolic execution engine.
g2q library: G2Q allows constraint programming, via writing Haskell predicates.
ghc-proofs library and tests: GHC plugin to prove program equations by simplification
grisette library and tests: Symbolic evaluation as a library
grisette-monad-coroutine library and test: Support for monad-coroutine package with Grisette
hermit library, program and test: Haskell Equational Reasoning Model-to-Implementation Tunnel
hz3 library, program and test: Bindings for the Z3 Theorem Prover
improve library: An imperative, verifiable programming language for high assurance applications.
LPPaver library, program and test: An automated prover targeting problems that involve nonlinear real arithmetic
opentheory library and test: The standard theory library
opentheory-bits library: Natural number to bit-list conversions
opentheory-byte library: Bytes
opentheory-primitive library and test: Haskell primitives used by OpenTheory packages
opentheory-probability library: Probability
PropaFP library, programs and test: Auto-active verification of floating-point programs
rme library: Reed-Muller Expansion normal form for Boolean Formulas
safe-coupling library and test: Relational proof system for probabilistic algorithms
sbv library, tests and benchmark: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
sbv-program library and test: Component-based program synthesis using SBV
sbvPlugin library and test: Formally prove properties of Haskell programs using SBV/SMT
SmtLib library: Library for parsing SMTLIB2
smtlib2 library: A type-safe interface to communicate with an SMT solver.
smtlib2-debug library: Dump the communication with an SMT solver for debugging purposes.
smtlib2-pipe library and test: A type-safe interface to communicate with an SMT solver.
smtlib2-quickcheck library: Helper functions to create SMTLib expressions in QuickCheck
smtlib2-timing library: Get timing informations for SMT queries
theoremquest library: A common library for TheoremQuest, a theorem proving game.
theoremquest-client program: A simple client for the TheoremQuest theorem proving game.
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
tptp library and tests: Parser and pretty printer for the TPTP language
what4 library, programs and tests: Solver-agnostic symbolic values support for issuing queries
yices-painless library: An embedded language for programming the Yices SMT solver
z3 library, program and test: Bindings for the Z3 Theorem Prover

Format

vformat library and test: A Python str.format() like formatter
vformat-aeson library and test: Extend vformat to Aeson datatypes
vformat-time library and test: Extend vformat to time datatypes

Formatting

fourmolu library, program and test: A formatter for Haskell source code
ormolu library, program and test: A formatter for Haskell source code

Foundation

foundation tests and benchmark: Alternative prelude with batteries and no dependencies
foundation-edge library: foundation's edge with the conventional set of packages

Fractals

3d-graphics-examples programs: Examples of 3D graphics programming with OpenGL

Framework

eve library and test: An extensible event framework
iris library and test: Haskell CLI framework
metro library: A simple tcp and udp socket server framework
mischief-ecs library, program, test and benchmarks: An opinionated archetype ECS engine built in Haskell.
platinum-parsing library, program and test: General Framework for compiler development.
tonatona library and tests: meta application framework

FraudDetector

stratosphere-frauddetector library: Stratosphere integration for AWS FraudDetector.

FRP

AFSM library: Arrowized functional state machines
Animas library: Updated version of Yampa: a library for programming hybrid systems.
artery library: A simple, arrow-based reactive programming
AsyncRattus library and tests: An asynchronous modal FRP language
bearriver library: FRP Yampa replacement implemented with Monadic Stream Functions.
bot library: bots for functional reactive programming
broccoli library: Small library for interactive functional programs.
buster library: Almost but not quite entirely unlike FRP
buster-gtk library: Almost but not quite entirely unlike FRP
buster-network library: Almost but not quite entirely unlike FRP
DefendTheKing programs: A simple RTS game
dow program: Dungeons of Wor
drClickOn library: Monadic FRP
dunai library, tests and benchmark: Generalised reactive framework supporting classic, arrowized and monadic FRP.
dunai-core library: Generalised reactive framework supporting classic, ...
dyna library and test: Minimal FRP library
dyna-brick library and test: FRP for brick Terminal user interface library
dyna-gloss library and test: FRP for gloss graphics and animation library
dyna-processing library and test: FRP library for processing-for-haskell package
DysFRP library: dysFunctional Reactive Programming
DysFRP-Cairo library: dysFunctional Reactive Programming on Cairo
DysFRP-Craftwerk library: dysFunctional Reactive Programming on Craftwerk
elerea library: A minimalistic FRP library
elerea-examples programs: Example applications for Elerea
essence-of-live-coding library, programs and test: General purpose live coding framework
essence-of-live-coding-gloss library: General purpose live coding framework - Gloss backend
essence-of-live-coding-gloss-example program: General purpose live coding framework - Gloss example
essence-of-live-coding-pulse library: General purpose live coding framework - pulse backend
essence-of-live-coding-pulse-example program: General purpose live coding framework - pulse backend example
essence-of-live-coding-quickcheck library: General purpose live coding framework - QuickCheck integration
essence-of-live-coding-warp library and test: General purpose live coding framework
euphoria library, test and benchmark: Dynamic network FRP with events and continuous values
glazier-pipes library: A threaded rendering framework using glaizer and pipes
grapefruit-examples library: Examples using the Grapefruit library
grapefruit-frp library: Functional Reactive Programming core
grapefruit-records library: A record system for Functional Reactive Programming
grapefruit-ui library: Declarative user interface programming
grapefruit-ui-gtk library: GTK+-based backend for declarative user interface programming
haskanoid program: A breakout game written in Yampa using SDL
helm library, program and test: A functionally reactive game engine.
machinecell library and tests: Arrow based stream transducers
midair library: Hot-swappable FRP
Moe library and program: A FRP library based on signal functions.
netwire library: Functional reactive programming library
ordrea library and test: Push-pull implementation of discrete-time FRP
patch library and tests: Data structures for describing changes to other data structures.
peakachu library: Experiemental library for composable interactive programs
pipes-fluid library and test: Reactively combines Producers so that a value is yielded as soon as possible.
Rattus library and tests: A modal FRP language
reactive : Push-pull functional reactive programming
reactive-bacon library and test: FRP (functional reactive programming) framework
reactive-banana library, test and benchmarks: Library for functional reactive programming (FRP).
reactive-banana-automation library and test: home (etc) automation using reactive-banana
reactive-banana-bunch library: Extend reactive-banana to multiple events per time point
reactive-banana-sdl2 library and test: Reactive Banana integration with SDL2
reactive-banana-threepenny library and programs: Examples for the reactive-banana library, using threepenny-gui.
reactive-banana-wx library and programs: Examples for the reactive-banana library, using wxHaskell.
reactive-fieldtrip library: Connect Reactive and FieldTrip
reactive-glut library: Connects Reactive and GLUT
reactive-thread library and program: Reactive programming via imperative threads
reactivity : An alternate implementation of push-pull FRP.
reenact library: A reimplementation of the Reactive library.
reflex library, tests and benchmarks: Higher-order Functional Reactive Programming
reflex-animation library: Continuous animations support for reflex
reflex-backend-socket library and programs: Reflex bindings for TCP sockets
reflex-backend-wai library and program: Reflex interface to `wai`
reflex-basic-host library and programs: A basic Reflex host for backend work
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-contrib library: ...
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-ionic library: Compatible highlevel Wigdets for some Ionic Input Components
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-dom-svg library: Reflex functions for SVG elements.
reflex-dom-th library and test: reflex-dom-th transpiles HTML templates to haskell code for reflex-dom
reflex-dynamic-containers library and test: various dynamic containers for Reflex
reflex-external-ref library: External reference with reactivity support
reflex-fsnotify library: Reflex FRP interface for watching files
reflex-gadt-api library and program: Interact with a GADT API in your reflex-dom application.
reflex-ghci library, program and test: A GHCi widget library for use in reflex applications
reflex-gi-gtk library and program: Helper functions to use reflex with gi-gtk
reflex-gloss-scene library and programs: A simple scene-graph using reflex and gloss
reflex-jsx library: Use jsx-like syntax in Reflex
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
reflex-orphans library and test: Useful missing instances for Reflex
reflex-process library, program and test: Reflex FRP interface for running system processes
reflex-test-host library and test: reflex host methods for testing without external events
reflex-transformers library: Collections and switchable Monad transformers for Reflex
reflex-vty library, programs and test: Reflex FRP host and widgets for VTY applications
rhine library, tests and benchmark: Functional Reactive Programming with type-level clocks
rhine-bayes library and program: monad-bayes backend for Rhine
rhine-gloss library and program: Gloss backend for Rhine
rhine-terminal library, program and test: Terminal backend for Rhine
rsagl-frp library: The RogueStar Animation and Graphics Library: Functional Reactive Programming
RxHaskell library: Reactive Extensions for Haskell
shine-varying library and tests: FRP interface for shine using the varying package
simple-affine-space library and tests: A simple library for affine and vector spaces.
sodium library: Sodium Reactive Programming (FRP) System
spice library: An FRP-based game engine written in Haskell.
tempus program: Interpreter for the FRP language Tempus
time-domain library: A library for time domains and durations
TORCS library and program: Bindings to the TORCS vehicle simulator.
Updater library: Monadic FRP library based on stm
varying library, program, tests and benchmark: FRP through value streams and monadic splines.
WidgetRattus library and tests: An asynchronous modal FRP language for GUI programming
wires library and programs: Functional reactive programming library
wxFruit library and program: An implementation of Fruit using wxHaskell.
Yampa library, programs, tests and benchmark: Elegant Functional Reactive Programming Language for Hybrid Systems
Yampa-core library, programs and tests: Library for programming hybrid systems.
yampa-glut library and program: Connects Yampa and GLUT
YFrob library: Yampa-based library for programming robots

FSM

FSM library: Basic concepts of finite state machines.

FSx

stratosphere-fsx library: Stratosphere integration for AWS FSx.

Functions

apply-unordered library and test: Apply a function to an argument specified by a type level Nat
apply-unordered-mono library and test: Apply functions to arguments in an unordered type-directed fashion
flow library and test: Write more understandable Haskell.
flow-er library and test: More directional operators
invert library, test and benchmark: Automatically generate a function’s inverse
op library and test: Common operators encouraging large-scale easy reading
overhang library: Hang loose with your lambdas!
poly-arity library: Tools for working with functions of undetermined arity
variadic-function library and test: Create and transform functions with variable arity.
wrap library: Wrap a function's return value with another function

Functors

bifunctor-classes-compat library: Compatibility package for the Bifunctor, Bifoldable, and Bitraversable classes
bifunctors library and test: Bifunctors
day-comonoid library: A comonoid w.r.t. Day
functor-monad library and test: FFunctor: functors on (the usual) Functors
kan-extensions library: Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
matchable library and test: A type class for Matchable Functors.
matchable-th library and test: Generates Matchable instances using TemplateHaskell
representable-functors library: Representable functors
representable-tries library: Tries from representations of polynomial functors
selections library: Combinators for operating with selections over an underlying functor
transformers-bifunctors library: Bifunctors over monad transformers.

Futhark

futhark library, program, test and benchmark: An optimising compiler for a functional, array-oriented language.
futhark-data library and test: An implementation of the Futhark data format.
futhark-manifest library and test: Definition and serialisation instances for Futhark manifests.
futhark-server library: Client implementation of the Futhark server protocol.
shake-futhark library: Dependency tracking for Futhark

Futures

futures library: Simple and fast implementation of Future

Fuzzy

fuzzily library and test: Filters a list based on a fuzzy string search

Game

4Blocks program: A tetris-like game (works with GHC 6.8.3 and Gtk2hs 0.9.13)
abc-puzzle program: Generate instances of the ABC Logic Puzzle.
Advgame program: Lisperati's adventure game in Lisp translated to Haskell
affection library and programs: A simple Game Engine using SDL
Allure library, program and test: Near-future Sci-Fi roguelike and tactical squad combat game
animate library and test: Animation for sprites
animate-example program: Animation for sprites
animate-frames library, program and test: Convert sprite frames to animate files
animate-preview library and program: Preview tool for sprite animation
animate-sdl2 library: sdl2 + animate auxiliary library
anitomata library and test: Composable sprite animation
anitomata-aseprite library, program and test: Code gen for Aseprite animations
ansi-terminal-game library, programs and test: cross-platform library for terminal games
antisplice library: An engine for text-based dungeons.
apecs library, test and benchmark: Fast Entity-Component-System library for game programming
apecs-effectful library: Adaptation of the apecs library for the effectful ecosystem.
apecs-stm library, test and benchmark: STM stores for apecs
armada program: Space-based real time strategy game
artifact library: Basic types and instances for Valve's Artifact Card-set API
astrds program: an incomplete 2d space game
babylon program: An implementation of a simple 2-player board game
battleplace library: Core definitions for BattlePlace.io service
battleplace-api library: Public API definitions of BattlePlace.io service
battleships library and programs: A web-based implementation of battleships including an AI opponent.
bearlibterminal library and program: Low-level Haskell bindings to the BearLibTerminal graphics library.
betris library and program: A horizontal version of tetris for braille users
bishbosh library, programs and tests: Plays chess.
bloxorz program: OpenGL Logic Game
blubber program: The blubber client; connects to the blubber server.
blubber-server library and program: The blubber server, serves blubber clients.
board-games library, program, test and benchmarks: Three games for inclusion in a web server
boardgame library, program and test: Modeling boardgames
boomslang program: Boomshine clone
breakout program: A simple Breakout game implementation.
brians-brain program: A Haskell implementation of the Brian's Brain cellular automaton
cadence library, programs and test: An ECS-based 2D game framework
call library and program: The call game engine
chesshs library: Simple library for validating chess moves and parsing PGN files
chessica library: A Library for Chess Game Logic
chessIO library, programs and tests: Basic chess library
cuboid program: 3D Yampa/GLUT Puzzle Game
DAG-Tournament program: Real-Time Game Tournament Evaluator
darkplaces-demo library, program and benchmark: Utility and parser for DarkPlaces demo files
darkplaces-rcon library and test: Darkplaces rcon client library
darkplaces-rcon-util library, program and test: Darplaces rcon utility
darkplaces-text library and test: Parser for darkplaces colorful text
DefendTheKing programs: A simple RTS game
dgs library: Haskell front-end for DGS' bot interface
dice library and program: Simplistic D&D style dice-rolling system.
dobutokO-poetry library and program: ...
dobutokO-poetry-general library: ...
dobutokO-poetry-general-languages library: Helps to order the 7 or less words to obtain somewhat suitable for poetry or music text
dominion library, program and test: A simulator for the board game Dominion.
dow program: Dungeons of Wor
draw-poker library, programs and test: playing draw poker
dual-game program: Network multiplayer 2D shooting game
ease library: Robert Penner's easing equations
ecstasy library: A GHC.Generics based entity component system.
edge program: Top view space combat arcade game
Eternal10Seconds program: A 2-D shooting game
falling-turnip program: Falling sand game/cellular automata simulation using regular parallel arrays.
fallingblocks program: A fun falling blocks game.
fearOfView program: A terminal broughlike game about manipulating vision
fen2s library, program and test: Converting a chess position from FEN notation to text
fixed-point library: Binary fixed-point arithmetic
fixed-point-vector library: Unbox instances for the fixed-point package
fixed-point-vector-space library: vector-space instances for the fixed-point package
fizzbuzz library: test
foo program: Paper soccer, an OpenGL game.
frag program: A 3-D First Person Shooter Game
freekick2 programs: A soccer game
french-cards library and tests: French Playing Cards
FunGEn library and programs: A lightweight, cross-platform, OpenGL-based game engine.
fwgl library: Game engine
fwgl-glfw library: FWGL GLFW backend
fwgl-javascript library: FWGL GHCJS backend
gameclock program: Game clock that shows two analog clock faces
gbnet-hs library, test and benchmark: Transport-level networking library with zero-copy Storable serialization
GeBoP program: Several games
gemstone library: A simple library of helpers for SDL+GL games.
general-games library and test: Library supporting simulation of a number of games
GeneralTicTacToe program: A general TicTacToe game implementation.
gloss-game library: Gloss wrapper that simplifies writing games
goatee library and test: A monadic take on a 2,500-year-old board game - library.
goatee-gtk library, program and test: A monadic take on a 2,500-year-old board game - GTK+ UI.
gore-and-ash library: Core of FRP game engine called Gore&Ash
gore-and-ash-actor library: Gore&Ash engine extension that implements actor style of programming
gore-and-ash-async library and test: Core module for Gore&Ash engine that embeds async IO actions into game loop.
gore-and-ash-demo programs: Demonstration game for Gore&Ash game engine
gore-and-ash-glfw library: Core module for Gore&Ash engine for GLFW input events
gore-and-ash-lambdacube library and programs: Core module for Gore&Ash engine that do something.
gore-and-ash-logging library: Core module for gore-and-ash with logging utilities
gore-and-ash-network library: Core module for Gore&Ash engine with low level network API
gore-and-ash-sdl library: Gore&Ash core module for integration with SDL library
grid-proto library and programs: Game engine for Prototyping on a Grid
gridland library and program: Grid-based multimedia engine
h-reversi library, program and test: Reversi game in haskell/blank-canvas
h2048 library, programs and test: An Implementation of Game 2048
hackertyper program: "Hack" like a programmer in movies and games!
halma library and test: Library implementing Halma rules
halma-gui program: GTK application for playing Halma
halma-telegram-bot program: Telegram bot for playing Halma
hanabi-dealer library and programs: Hanabi card game
hangman program: Hangman implementation in Haskell written in two hours.
HangmanAscii program: Yet another Hangman game.
happlets library: "Haskell Applets" provides an event handler and a canvas for building simple GUI apps.
happlets-lib-gtk library and test: The "Haskell Applets" Gtk+ ver. 2 back-end for "happlets".
haskanoid program: A breakout game written in Yampa using SDL
haskell-go-checkers program: Go and Checkers game in Haskell
haskell-in-space programs: 'Asteroids' arcade games.
haskell-spacegoo library: Client API for Rocket Scissor Spacegoo
Haskelloids program: A reproduction of the Atari 1979 classic "Asteroids"
haskellscrabble library and test: A scrabble library capturing the core game logic of scrabble.
haskmon library: A haskell wrapper for PokeAPI.co (www.pokeapi.co)
haverer library, program and test: Implementation of the rules of Love Letter
hback program: N-back memory game
HCard library: A library for implementing a Deck of Cards
hchesslib library and tests: Chess library
hcube library and program: Virtual Rubik's cube of arbitrary size.
hedra library, program and test: A small library and executable for generating dice rolls.
hetris program: Text Tetris
hexmino program: A small game based on domino-like hexagonal tiles
hfiar library and program: Four in a Row in Haskell!!
hfov library: Field-of-view calculation for low-resolution 2D raster grids.
HGamer3D-API library: Library to enable 3D game development for Haskell - API
HGamer3D-CAudio-Binding library: Library to enable 3D game development for Haskell - cAudio Bindings
HGamer3D-OIS-Binding library: Library to enable 3D game development for Haskell - OIS Bindings
HGE2D library, programs and test: 2D game engine written in Haskell
hinvaders program: Space Invaders
Hipmunk library: A Haskell binding for Chipmunk.
Hipmunk-Utils library and test: Useful functions for Hipmunk
HipmunkPlayground program: A playground for testing Hipmunk.
HODE library: Binding to libODE
hold-em library: An engine for Texas hold'em Poker
hoodie program: A small, toy roguelike
HPong program: A simple OpenGL Pong game based on GLFW
hpylos program: AI of Pylos game with GLUT interface.
Hricket program: A Cricket scoring application.
hricket program: A Cricket scoring application.
hs-pgms library and program: Programmer's Mine Sweeper in Haskell
hs2048 library, program, tests and benchmark: A 2048 clone in Haskell.
hsqml-demo-manic program: HsQML-based clone of Pipe Mania
hsqml-demo-morris program: HsQML-based implementation of Nine Men's Morris
hsqml-morris program: HsQML-based implementation of Nine Men's Morris
hstzaar program: A two player abstract strategy game.
hsudoku library, program and tests: Sudoku game with a GTK3 interface
HTicTacToe program: An SDL tic-tac-toe game.
htiled library: Import from the Tiled map editor.
htzaar program: A two player abstract strategy game.
hyahtzee program: A Yahtzee game implementation in Haskell
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.
intricacy programs: A game of competitive puzzle-design
ironforge library and program: A technical demo for Antisplice.
ixshader library: A shallow embedding of the OpenGL Shading Language in Haskell.
java-poker library and program: The etude of the Haskell programming
key-state library and test: Manage key and button states and statuses
kurita library, programs and test: Find the alpha emoji
L-seed library and programs: Plant growing programming game
labyrinth library and test: A complicated turn-based game
labyrinth-server program and test: A complicated turn-based game - Web server
LambdaHack library, program and test: A game engine library for tactical squad ASCII roguelike dungeon crawlers
layers-game program: A prototypical 2d platform game.
Level0 program: A Snake II clone written using SDL.
life program: Conway's Life cellular automaton
lines-of-action library: Lines of Action, 2-player strategy board game
Liquorice library and test: Algorithmic Doom map generation
lostcities program: An implementation of an adictive two-player card game
macbeth-lib library, program and test: Macbeth - A beautiful and minimalistic FICS client
mage program: Rogue-like
mancala program: Simple mancala game.
marionetta program: A study of marionetta movements.
mastermind program: console mastermind decypher
MazesOfMonad program: Console-based Role Playing Game
midimory programs: A Memory-like (Concentration, Pairs, ...) game for tones
minecraft-data library: a DSL for generating minecraft commands and levels
mines program: Minesweeper simulation using neural networks
minesweeper program: Minesweeper game which is always solvable without guessing
mischief-ecs library, program, test and benchmarks: An opinionated archetype ECS engine built in Haskell.
misfortune library and programs: fortune-mod clone
Monadius program: 2-D arcade scroller
Monaris program: A simple tetris clone
netwire-input library: Input handling abstractions for netwire
netwire-input-glfw library and program: GLFW instance of netwire-input
netwire-input-javascript library: JavaScript instance of netwire-input
netwire-vinylglfw-examples programs: Netwire/GLFW/VinylGL input handling demo
Ninjas program: Ninja game
Nomyx program: A Nomic game in haskell
nomyx-api library: REST API for Nomyx
Nomyx-Core library: A Nomic game in haskell
nomyx-core library and test: A Nomic game in haskell
nomyx-server program and test: A Nomic game in haskell
Nomyx-Web library: Web gui for Nomyx
nomyx-web library: Web gui for Nomyx
nova-net library, test and benchmark: General-purpose reliable UDP with C99 hot path and Haskell protocol logic
nyx-game library and program: A bullet-hell game made with SDL2.
octane library and program: Parse Rocket League replays.
ohhecs library: An Entity-Component-Systems engine core.
ois-input-manager library: wrapper for OIS input manager for use with hogre
pang-a-lambda programs: A super-pang clone
phonetic-languages-basis library: A basics of the phonetic-languages (PhLADiPreLiO-related) functionality.
phonetic-languages-examples library and programs: A generalization of the uniqueness-periods-vector-examples functionality.
phonetic-languages-permutations library: Commonly used versions of the phonetic-languages-common package
phonetic-languages-permutations-array library: Permutations and universal set related functions for the phonetic-languages series
phonetic-languages-phonetics-basics library and program: A library for working with generalized phonetic languages usage.
phonetic-languages-plus library and program: Some common shared between different packages functions.
phonetic-languages-rhythmicity library: Allows to estimate the rhythmicity properties for the text
phonetic-languages-simplified-base library: A basics of the phonetic-languages functionality that can be groupped.
phonetic-languages-simplified-common library: A simplified version of the phonetic-languages-functionality
phonetic-languages-simplified-examples-array library and programs: Helps to create Ukrainian texts with the given phonetic properties.
phonetic-languages-simplified-examples-common library: Some commonly used by phonetic-languages-simplified* series functions.
phonetic-languages-simplified-generalized-examples-array library: Helps to create texts with the given phonetic properties (e. g. poetic).
phonetic-languages-simplified-generalized-examples-common library: Some common code for phonetic languages generalized functionality.
phonetic-languages-simplified-generalized-properties-array library: Some 'properties' of the phonetic languages approach text.
phonetic-languages-simplified-lists-examples library and programs: Simplified and somewhat optimized version of the phonetic-languages-examples.
phonetic-languages-simplified-properties-array library: Some properties of the data related to rhythmicity.
phonetic-languages-simplified-properties-array-common library: Common functionality for 'with-tuples' and old version of properties.
phonetic-languages-simplified-properties-array-old library: Some properties of the data related to rhythmicity.
phonetic-languages-ukrainian library: Prepares Ukrainian text to be used as a phonetic language text
phonetic-languages-ukrainian-array library and program: Prepares Ukrainian text to be used as a PhLADiPreLiO text
pine library, programs and test: Functional 2D Game Framework
piyo library, program and test: Haskell game engine like fantasy console.
PlayHangmanGame program: Play Hangman Game
PlayingCards library: Playing cards api
pokemon-go-protobuf-types library: Haskell types for the Pokemon Go protobuf protocol.
poker library, program, test and benchmarks: Texas holdem hand evaluation and simulation.
Pollutocracy program: An imaginary world
QuadTree library and test: QuadTree library for Haskell, with lens support.
quoridor-hs library, program and test: A Quoridor implementation in Haskell
Raincat program: A puzzle game written in Haskell with a cat in lead role
Rasenschach program: Soccer simulation
rattletrap library, program and test: Parse and generate Rocket League replays.
reflex-sdl2 library and program: SDL2 and reflex FRP
reversi program: Text-only reversi (aka othelo) game
roguestar program: Sci-fi roguelike game. Client application.
roguestar-engine program: Sci-fi roguelike game. Backend.
roguestar-gl library: Sci-fi roguelike game. Client library.
roguestar-glut program: Sci-fi roguelike game. GLUT front-end.
sc2-lowlevel library: Low-level Starcraft II API
sc2-support library: Support and utility library for sc2hs.
sc2hs library and program: An interface to the Starcraft II bot API
scrabble-bot program: Scrabble play generation.
scroll program: scroll(6), a roguelike game
sdl2-fps library: Run of the mill, frames per second timer implementation
secret-santa program: Secret Santa game assigner using QR-Codes
setgame library and program: A console interface to the game of Set
SFML library: SFML bindings
shine-examples programs: Examples for the shine package
showdown program: A simple gtk based Russian Roulette game.
Shu-thing program: A vector shooter game
snake program: A basic console snake game.
snake-game library: Snake Game Using OpenGL
snorkels library and program: Strategic board game of medium complexity
SoccerFun library and program: Football simulation framework for teaching functional programming
SoccerFunGL library and programs: OpenGL UI for the SoccerFun framework
solve library, program and test: Solving simple games
SpaceInvaders program: Video game
SpacePrivateers program: Simple space pirate roguelike
spanout program: A breakout clone written in netwire and gloss
starrover2 program: Space simulation game
starter-snake-haskell library, program and test: A Haskell Battlesnake starter
steambrowser program: List and launch steam games from the cli
swarm library, programs, tests and benchmark: 2D resource gathering game with programmable robots
switch library and tests: Nintendo Switch Controller Library
sylvia program and test: Lambda calculus visualization
t3-client library: tic-tac-toe Rexports for client
t3-game library and test: tic-tac-toe core
t3-server library: tic-tac-toe server
table-tennis library: A table tennis game tracking engine
tak library and test: A library encoding the rules of Tak, and a playtak.com client.
tak-ai program and test: AI(s) for playing Tak on playtak.com
tateti-tateti program: Meta tic-tac-toe ncurses game.
tcod-haskell library and programs: Bindings to libtcod roguelike engine
TeaHS library: TeaHS Game Creation Library
tetris program: A 2-D clone of Tetris
theoremquest library: A common library for TheoremQuest, a theorem proving game.
theoremquest-client program: A simple client for the TheoremQuest theorem proving game.
thock library, programs and test: A modern TUI typing game featuring online racing against friends.
Tic-Tac-Toe program: Tic Tac Toe in your command line!
tic-tac-toe program: Useful if reading "Why FP matters" by John Hughes
tictactoe3d library: 3D Tic-Tac-Toe game
Titim program: Game for Lounge Marmelade
topkata programs: OpenGL Arcade Game
Tournament library and test: Tournament related algorithms
turing-music program: Plays music generated by Turing machines with 5 states and 2 symbols
turn-loop library: Manage multiple turned-based sessions
twisty library: Simulator of twisty puzzles à la Rubik's Cube
TypeClass program: Typing speed game
TypingTester program: Command Line Typing speed tester
uniqueness-periods-vector library: ...
uniqueness-periods-vector-common library: Generalization of the dobutokO-poetry-general package functionality
uniqueness-periods-vector-examples library and programs: Usage examples for the uniqueness-periods-vector series of packages
uniqueness-periods-vector-filters library: A library allows to change the structure of the 'RealFrac' function output.
uniqueness-periods-vector-general library: Some kind of the optimization approach to data inner structure.
uniqueness-periods-vector-properties library: Metrices for the maximum element for the uniqueness-periods-vector packages family.
venzone programs and test: ASCII platform-adventure game
Verba program: A solver for the WordBrain game
waddle library and programs: DOOM WAD file utilities.
werewolf library and program: A game engine for playing werewolf within an arbitrary chat client
werewolf-slack program: A chat interface for playing werewolf in Slack
wordify library, program and test
wxAsteroids program: Try to avoid the asteroids with your space ship
wyvern program: An autoresponder for Dragon Go Server.
YACPong program: Yet Another Pong Clone using SDL.
yampa2048 program: 2048 game clone using Yampa/Gloss
ZMachine program: A Z-machine interpreter

Game Engine

ActionKid library, program and test: An easy-to-use video game framework for Haskell.
aeson-tiled library and test: Aeson instances for the Tiled map editor.
alpaca-netcode library and test: Rollback/replay NetCode for realtime, deterministic, multiplayer games.
apecs-brillo library and test: Apecs' gloss package, but adapted for brillo
aztecs library, test and benchmark: A modular game engine and Entity-Component-System (ECS) for Haskell.
aztecs-asset library: A type-safe and friendly Entity-Component-System (ECS) for Haskell
aztecs-gl library and test: OpenGL rendering for Aztecs
aztecs-gl-text library and test: OpenGL text rendering for Aztecs
aztecs-glfw library, program and test: GLFW backed for Aztecs
aztecs-hierarchy library and test: A type-safe and friendly Entity-Component-System (ECS) for Haskell
aztecs-sdl library: A type-safe and friendly Entity-Component-System (ECS) for Haskell
aztecs-sdl-image library: A type-safe and friendly Entity-Component-System (ECS) for Haskell
aztecs-sdl-text library: A type-safe and friendly Entity-Component-System (ECS) for Haskell
aztecs-transform library: Transform components for Aztecs
bearlibterminal library and program: Low-level Haskell bindings to the BearLibTerminal graphics library.
bogre-banana library and program
cadence library, programs and test: An ECS-based 2D game framework
deterministic-game-engine library and test: Simple deterministic game engine
fwgl library: Game engine
fwgl-glfw library: FWGL GLFW backend
fwgl-javascript library: FWGL GHCJS backend
helm library, program and test: A functionally reactive game engine.
HGamer3D library: Toolset for the Haskell Game Programmer
HGamer3D-Audio library: Toolset for the Haskell Game Programmer - Audio Functionality
HGamer3D-Bullet-Binding library: Windows Game Engine for the Haskell Programmer - Bullet Bindings
HGamer3D-CEGUI-Binding library: A Toolset for the Haskell Game Programmer - CEGUI Bindings
HGamer3D-Common library: Toolset for the Haskell Game Programmer - Game Engine and Utilities
HGamer3D-Data library: Toolset for the Haskell Game Programmer - Data Definitions
HGamer3D-Enet-Binding library: Enet Binding for HGamer3D
HGamer3D-Graphics3D library: Toolset for the Haskell Game Programmer - 3D Graphics Functionality
HGamer3D-GUI library: GUI Functionality for HGamer3D
HGamer3D-InputSystem library: Joystick, Mouse and Keyboard Functionality for HGamer3D
HGamer3D-Network library: Networking Functionality for HGamer3D
HGamer3D-Ogre-Binding library: Ogre Binding for HGamer3D
HGamer3D-SDL2-Binding library: SDL2 Binding for HGamer3D
HGamer3D-SFML-Binding library: SFML Binding for HGamer3D
HGamer3D-WinEvent library: Windowing and Event Functionality for HGamer3D
HGamer3D-Wire library: Wire Functionality for HGamer3D
imj-animation library and test: Animation Framework
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
imj-prelude library: Prelude library.
IrrHaskell library: Haskell FRP binding to the Irrlicht game engine.
keid-core library: Core parts of Keid engine.
keid-frp-banana library: Reactive Banana integration for Keid engine.
keid-geometry library: Geometry primitives for Keid engine.
keid-render-basic library: Basic rendering programs for Keid engine.
keid-resource-gltf library: GLTF loader for Keid engine.
keid-sound-openal library: OpenAL sound system for Keid engine.
keid-ui-dearimgui library: DearImGui elements for Keid engine.
LambdaHack library, program and test: A game engine library for tactical squad ASCII roguelike dungeon crawlers
mischief-ecs library, program, test and benchmarks: An opinionated archetype ECS engine built in Haskell.
ohhecs library: An Entity-Component-Systems engine core.
polar-configfile library and test: Fork of ConfigFile for Polar Game Engine
polar-shader library and test: High-level shader compiler framework
twirl library and program: Simple 2D Game Engine

GameLift

stratosphere-gamelift library: Stratosphere integration for AWS GameLift.

Games

diplomacy library: Diplomacy board game
dovin library, program and test: A proof assistant for Magic: The Gathering puzzles.
haskell-snake library and program: Snake game implemetation in Haskell using SDL2
hcheckers program: Implementation of checkers ("draughts") board game - server application
immutaball-core library, programs and test: Immutaball platformer game (prototype version)
lifter program: A boulderdash-like game and solution validator
smarties library, programs and test: Haskell Behavior Tree Library

Gateway

micro-gateway library and program: A Micro service gateway.

Geckodriver

webdriver-wrapper library: Wrapper around the webdriver package that automatically manages Selenium

Gemini

gemcap library and test: a simple Gemini capsule (server)
gemini-router library: A simple Happstack-style Gemini router
gemini-server library: A lightweight server for the Gemini protocol
gemini-textboard program: A barebones textboard for the Gemini protocol
gemmula library and test: a tiny gemtext parser
gemmula-altera library, program and test: A tiny gemtext converter for gemmula
gemoire library and test: yet another static gemlog generator + converter
language-gemini library and test: Datatypes and parsing/printing functions to represent the Gemini markup language

Genealogy

family-tree library: A family tree library for the Haskell programming language.
gedcom library and test: Parser for the GEDCOM genealogy file format.

General

control-dsl library and test: An alternative to monads in do-notation
do-notation-dsl library and test: An alternative to monads
monad-recorder library and test: Record and replay the results of monadic actions
primus library and test: nonempty and positive functions

Generative Music Grammars

AlgoRhythm library, program and test: Algorithmic music composition

Generic

base-generics library: ...
boltzmann-samplers library, test and benchmark: Uniform random generators
generic-arbitrary library and test: Generic implementation for QuickCheck's Arbitrary
HsTools library: Haskell helper functions
syb-extras library: Higher order versions of the Scrap Your Boilerplate classes

Generics

algebraic-classes library: Conversions between algebraic classes and F-algebras.
alloy library: Generic programming library
alloy-proxy-fd library: Some add-on instances for the Alloy library
Annotations library and test: Constructing, analyzing and destructing annotated trees
ats-storable library and test: Marshal ATS types into Haskell
barbies-th library and tests: Create strippable HKD via TH
barlow-lens library and tests: lens via string literals
basic-sop library: Basic examples and functions for generics-sop
BiGUL library: The Bidirectional Generic Update Language
binrep library, test and benchmark: Encode precise binary representations directly in types
bytezap library: Bytestring builder with zero intermediate allocation
Capabilities library: Separate and contain effects of IO monad.
church library: Automatically convert Generic instances to and from church representations
compdata library, test and benchmark: Compositional Data Types
compdata-automata library and benchmark: Tree automata on Compositional Data Types
compdata-dags library and test: Compositional Data Types on DAGs
compdata-fixplate library: Compdata basics implemented on top of Fixplate
compdata-param library and test: Parametric Compositional Data Types
compstrat library: Strategy combinators for compositional data types
comptrans library: Automatically converting ASTs into compositional data types
constr-eq library: Equality by only Constructor
contra-tracers library: ...
deep-transformations library and test: Deep natural and unnatural tree transformations, including attribute grammars
derive-enumerable library: Generic instances for enumerating complex data types
derive-IG library: Macro to derive instances for Instant-Generics using Template Haskell
derive-lifted-instances library: Derive class instances though various kinds of lifting
derive-prim library and test: Derive Prim and PrimUnaligned
deriving-aeson library and test: Type driven generic aeson instance customisation
deriving-openapi3 library: DerivingVia for OpenAPI 3
deriving-show-simple library and test: Derive a Show instance without field selector names
emgm library and test: Extensible and Modular Generics for the Masses
fixplate library and test: Uniplate-style generic traversals for optionally annotated fixed-point types.
flay library and test: Generic programming for higher-kinded types.
functorm library: Data.FunctorM (compatibility package)
gdiff-ig library: Generic diff for the instant-generics library
gdiff-th library and test: Generate gdiff GADTs and Instances.
generic-binary library: Generic Data.Binary derivation using GHC generics.
generic-case library and test: Generic case analysis
generic-church library and test: Automatically convert Generic instances to and from church representations
generic-constraints library and test: Constraints via Generic
generic-data library, tests and benchmark: Deriving instances with GHC.Generics and related utilities
generic-data-asserts library and test: Structural assertions on generic data representations.
generic-data-functions library: Familiar functions lifted to generic data types
generic-deepseq library: Generic deep evaluation of data structures
generic-deriving library and test: Generic programming library for generalised deriving.
generic-diff library and test: Generic structural diffs
generic-diff-instances library and test: Diff instances for common types
generic-functor library and test: Deriving generalized functors with GHC.Generics
generic-labels library and test: Generically extract and replace collections of record fields
generic-lens library and tests: Generically derive traversals, lenses and prisms.
generic-lens-core library: Generically derive traversals, lenses and prisms.
generic-lens-labels library: GHC.OverloadedLabels.IsLabel instance for lenses from ghc-generics
generic-lens-lite library and test: Monomorphic field lens like with generic-lens
generic-maybe library, tests and benchmark: A generic version of Data.Maybe
generic-optics library and tests: Generically derive traversals, lenses and prisms.
generic-optics-lite library and test: Monomorphic field opics like with generic-lens
generic-override library and test: Provides functionality for overriding instances for generic derivation
generic-override-aeson library and test: Provides orphan instances necessary for integrating generic-override and aeson
generic-pretty-instances library and test: GenericPretty canonical instances
generic-random library and tests: Generic random generators for QuickCheck
generic-records library: Magic record operations using generics
generic-type-asserts library and test: Structural assertions on generic type representations.
generic-type-functions library: Familiar functions lifted to type-level functions on generic types
generically library: Generically newtype to use with DerivingVia
GenericPretty library: A generic, derivable, haskell pretty printer.
generics-eot library and tests: A library for generic programming that aims to be easy to understand
generics-mrsop library: Generic Programming with Mutually Recursive Sums of Products.
generics-mrsop-gdiff library: Reimplementation of the gdiff algorithm for generics-mrsop
generics-sop library, test and benchmark: Generic Programming using True Sums of Products
generics-sop-lens library: Lenses for types in generics-sop
genifunctors library and test: Generate generalized fmap, foldMap and traverse
geniplate library: Use Template Haskell to generate Uniplate-like functions.
geniplate-mirror library: Use Template Haskell to generate Uniplate-like functions.
gpah program: Generic Programming Use in Hackage
guarded-rewriting library: Datatype-generic rewriting with preconditions
heidi library, program, test and benchmarks: Tidy data in Haskell
idiomatic library and program: Deriving Applicative for sum types.. Idiomatically.
instant-aeson library and test: Generic Aeson instances through instant-generics
instant-bytes library and test: Generic Serial instances through instant-generics
instant-deepseq library: Generic NFData instances through instant-generics
instant-generics library: Generic programming library with a sum of products view
instant-hashable library: Generic Hashable instances through instant-generics
instant-zipper library: Heterogenous Zipper in Instant Generics
iso-deriving library and test: Deriving via arbitrary isomorphisms.
json-sop library and test: Generics JSON (de)serialization using generics-sop
large-generics library and test: Generic programming API for large-records and large-anon
large-records library and test: Efficient compilation for large records, linear in the size of the record
lens library, tests and benchmarks: Lenses, Folds and Traversals
lens-action library: Monadic Getters and Folds
lens-indexed-plated library: Indexed version of Plated.
lens-sop library: Computing lenses generically using generics-sop
ligd library: Lightweight Implementation of Generics and Dynamics
linear-generics library and test: Generic programming library for generalised deriving.
listlike-instances library: Extra instances of the ListLike class
meta-misc library: Utility library providing miscellaneous meta-programming utilities.
model library and tests: Derive a model of a data type using Generics
multifocal library and program: Bidirectional Two-level Transformation of XML Schemas
multiplate library: Lightweight generic library for mutually recursive data types.
multiplate-simplified library: Shorter, more generic functions for Multiplate.
multirec library and test: Generic programming for families of recursive datatypes
multirec-alt-deriver library: Alternative multirec instances deriver
multirec-binary library: Generic Data.Binary instances using MultiRec.
mutable-lens library, tests and benchmark: Interoperate mutable references with regular lens
nominal library: Binders and alpha-equivalence made easy
one-liner library and test: Constraint-based generics
pointless-haskell library: Pointless Haskell library
pointless-lenses library: Pointless Lenses library
pointless-rewrite library: Pointless Rewrite library
posable library and test: A product-of-sums generics library
PPrinter library: A generic derivable Haskell pretty printer
pretty-sop library and test: A generic pretty-printer using generics-sop
projection library: Projection function for arbitrarily nested binary product types.
putlenses library: Put-based lens library
quiet library and test: Generic deriving of Read/Show with no record labels.
rank2classes library and test: standard type constructor class hierarchy, only with methods of rank 2 types
records-sop library and test: Record subtyping and record utilities with generics-sop
regular library: Generic programming library for regular datatypes.
regular-extras library: Additional functions for regular: arbitrary, coarbitrary, and binary get/put.
regular-web library: Generic programming for the web
reified-records library: Reify records to Maps and back again
RepLib library: Generic programming library with representation types
rewriting library: Generic rewriting library for regular datatypes.
sai-shape-syb library and test: Obtain homogeneous values from arbitrary values, transforming or culling data
shapely-data library and test: Generics using @(,)@ and @Either@, with algebraic operations and typed conversions
smallcheck-kind-generics library, test and benchmark: See README for more info
special-functors library: Control.Applicative, Data.Foldable, Data.Traversable (compatibility package)
spine library: Simple implementation of the generic spine view
split-morphism library and test: Split Epimorphisms and Monomorphisms
staged-gg library: GHC.Generics style staged generics
Strafunski-StrategyLib library: Library for strategic programming
StrategyLib library
syb library and test: Scrap Your Boilerplate
syz library: Scrap Your Zippers
text-generic-pretty library and test: A generic, derivable, haskell pretty printer.
thorn library: Datatype Manipulation with Template Haskell
TYB library: Template Your Boilerplate - a Template Haskell version of SYB
unbound library and test: Generic support for programming with names and binders
unfoldable library: Class of data structures that can be unfolded.
uniplate library: Help writing simple, concise and fast generic operations.
vinyl-generics library and test: Convert plain records to vinyl (and vice versa), generically.
wakame library and tests: Functions to manipulate records
wrapped library: Newtypes to carry DerivingVia instances
wrapped-generic-default library: A Generic instance of Default
xformat library and test: Extensible, type-safe formatting with scanf- and printf-like functions
yoko library: Generic Programming with Disbanded Data Types
zipper library: Generic zipper for families of recursive datatypes
Ztrategic library: Zipper-based library for strategic programming and attribute grammars.

Gentoo

fquery program: Installed package query tool for Gentoo Linux

Geo

arcgrid library and program: Parse ESRI/ArcInfo (ArcGrid) raster GIS files
arcgrid-viewer program: Simple viewer for ESRI/ArcInfo (ArcGrid) geospatial data

Geography

flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.
geocode-google library: Geocoding using the Google Web API
geodetic-types library: Types for geodetic operations
geodetics library and test: Terrestrial coordinate systems and geodetic calculations.
h3-hs library and test: A Haskell binding for H3
handa-geodata library and programs: Geographic and Geometric Data
hcoord library, program and test: Easily convert between latitude/longitude, UTM and OSGB.
hgdal library: Haskell binding to the GDAL library
hgeos library and test: Simple Haskell bindings to GEOS C API
hills program: Generate STL models from SRTM elevation data.
HSlippyMap library: OpenStreetMap Slippy Map
jord library, programs and tests: Geographical Position Calculations
mapalgebra library and test: Efficient, polymorphic Map Algebra.
osm-conduit library and test: Parse and operate on OSM data in efficient way
persistent-spatial library and test: Database agnostic, spatially indexed type for geographic points.
vectortiles library, test and benchmark: GIS Vector Tiles, as defined by Mapbox.

Geometry

brush-strokes library, tests and benchmarks: Toolkit for Bézier curves and brush stroking
brush-stroking library: Brush strokes document model and renderer
convexHullNd library: Convex hull
cubicbezier library and test: Efficient manipulating of 2D cubic bezier curves.
delaunayNd library: Delaunay tessellation
dimensions library and test: Safe type-level dimensionality for multidimensional data.
easytensor library, test and benchmarks: Pure, type-indexed haskell vector, matrix, and tensor library.
easytensor-vulkan library: Use easytensor with vulkan-api.
geos library and test: Bindings for GEOS.
handa-geodata library and programs: Geographic and Geometric Data
hcdt library: 2d Delaunay triangulation
hgeometry library, test and benchmark: Geometric Algorithms, Data structures, and Data types.
hgeometry-combinatorial library and tests: Data structures, and Data types.
hgeometry-ipe library and test: Reading and Writing ipe7 files.
hgeometry-svg library and test: Writing geometric primitives from HGeometry as SVG Files
hgeos library and test: Simple Haskell bindings to GEOS C API
hipe library: Support for reading and writing ipe7 files (http://ipe7.sourceforge.net)
moonlight-triangulation library, tests and benchmarks: Delaunay meshes and exact planar-region algebra.
nurbs library and test: NURBS
readshp library: Code for reading ESRI Shapefiles.
tropical-geometry library, program, test and benchmark: A Tropical Geometry package for Haskell
vertexenum library and test: Vertex enumeration
visibility library: Simple computation of visibility polygons.
wkt-types library and test: A library for working with .wkt files.
yx library and test: Row-major coordinates

Geospatial

naqsha library and test: A library for working with anything map related.

GHC

box-tuples library: A hack to use GHC.Prim primitives in GHCi
CoreDump library: A GHC plugin for printing GHC's internal Core data structures.
error-analyze library and test: Parse ghc and cabal error messages and give their causes for easier resolution
extensions library, program and test: Parse Haskell Language Extensions
ghc-bignum : GHC BigNum library
ghc-boot library: Shared functionality between GHC and its boot libraries
ghc-boot-th library: Shared functionality between GHC and the template-haskell library
ghc-corroborate library: An flatter API for GHC typechecker plugins
ghc-datasize library: Determine the size of data structures in GHC's memory
ghc-definitions-th library: Automatically generate GHC API counterparts to Haskell declarations.
ghc-dup library: Explicitly prevent sharing
ghc-events library, program and tests: Library and tool for parsing .eventlog files from GHC
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC
ghc-gc-hook library and test: GHC garbage collection hook
ghc-heap library: Functions for walking GHC's heap
ghc-heap-view library and test: Extract the heap representation of Haskell values and thunks
ghc-hs-meta library and test: Translate Haskell source to Template Haskell expression
ghc-man-completion program: Generate a bash completion from the GHC manpage
ghc-mod library, programs, tests and benchmark: Happy Haskell Hacking
ghc-plugin-non-empty library and test: GHC Plugin for non-empty lists
ghc-prim library: GHC primitives
ghc-tcplugin-api library: An API for type-checker plugins.
ghc-trace-events library and benchmarks: Faster traceEvent and traceMarker, and binary object logging for eventlog
ghc-vis library: Live visualization of data structures in GHCi
ghci library: The library supporting GHC's interactive interpreter
ghci-history-parser library and tests: parse output of ghci ":history" command
hackager program: Hackage testing tool
heapsize library and benchmark: Determine the size of runtime data structures
isevaluated library: Check whether a value has been evaluated
linux-perf library and programs: Read files generated by perf on Linux
packman library and tests: Serialization library for GHC
vacuum library: Graph representation of the GHC heap
vacuum-graphviz library: A library for transforming vacuum graphs into GraphViz output

GIS

wkt-types library and test: A library for working with .wkt files.

GIS Programs

terrahs library: A Haskell GIS Programming Environment

Git

cli-git library: Bindings to the git command-line interface
git-brunch program and test: git checkout command-line tool
git-config library and test: A simple parser for Git configuration files
git-cuk library and program: Haskell Git Helper Tool
git-embed library: Use TH to embed Git repo information.
gitlab-haskell library and test: A Haskell library for the GitLab web API
gitlib-cmdline library and test: Gitlib repository backend that uses the git command-line tool.
gitlib-s3 library and test: Gitlib repository backend for storing Git objects in Amazon S3
gitson library, tests and benchmark: A document store library for Git + JSON.
hit-graph library: Use graph algorithms to access and manipulate Git repos
hit-on library, program and test: Haskell Git Helper Tool
miss library and test: A Haskell git implimentation
miss-porcelain library: Useability extras built on top of miss.
nix-thunk library and program: Lightweight dependency management with Nix
pr-tools library, programs and test: Decentralized git pull request and code review flows
restless-git library and test: Easy Git repository serialization

GitHub

github-rest library and test: Query the GitHub REST API programmatically
github-types library and test: Type definitions for objects used by the GitHub v3 API
github-webhook-handler library: GitHub WebHook Handler
github-webhook-handler-snap library: GitHub WebHook Handler implementation for Snap
github-webhooks library and test: Aeson instances for GitHub webhook payloads.
github-workflow-commands library and tests: GitHub Actions workflow commands

GiveYouAHead

GiveYouAHead library: to auto-do somethings
gyah-bin program: A binary version of GiveYouAHead

GlobalAccelerator

stratosphere-globalaccelerator library: Stratosphere integration for AWS GlobalAccelerator.

Glue

stratosphere-glue library: Stratosphere integration for AWS Glue.

Go

tree-sitter-go library: Tree-sitter grammar/parser for Go

Google

firebase-database library, test and benchmark: Google Firebase Database SDK
firestore library and test: Wrapper for Google Firestore/Datastore API
gmail-simple library: Simple library for Google Mail (GMail).
gogol library: Comprehensive Google Services SDK.
gogol-abusiveexperiencereport library: Google Abusive Experience Report SDK.
gogol-acceleratedmobilepageurl library: Google Accelerated Mobile Pages (AMP) URL SDK.
gogol-accessapproval library: Google Access Approval SDK.
gogol-accesscontextmanager library: Google Access Context Manager SDK.
gogol-adexchange-buyer library: Google Ad Exchange Buyer SDK.
gogol-adexchange-seller library: Google Ad Exchange Seller SDK.
gogol-adexchangebuyer2 library: Google Ad Exchange Buyer API II SDK.
gogol-adexperiencereport library: Google Ad Experience Report SDK.
gogol-admin-datatransfer library: Google Admin SDK.
gogol-admin-directory library: Google Admin SDK.
gogol-admin-emailmigration library: Google Email Migration API v2 SDK.
gogol-admin-reports library: Google Admin SDK.
gogol-adsense library: Google AdSense Management SDK.
gogol-adsense-host library: Google AdSense Host SDK.
gogol-affiliates library: Google Affiliate Network SDK.
gogol-alertcenter library: Google Workspace Alert Center SDK.
gogol-analytics library: Google Analytics SDK.
gogol-analyticsreporting library: Google Analytics Reporting SDK.
gogol-android-enterprise library: Google Play EMM SDK.
gogol-android-publisher library: Google Play Android Developer SDK.
gogol-androiddeviceprovisioning library: Google Android Device Provisioning Partner SDK.
gogol-androidmanagement library: Google Android Management SDK.
gogol-appengine library: Google App Engine Admin SDK.
gogol-apps-activity library: Google Drive Activity SDK.
gogol-apps-calendar library: Google Calendar SDK.
gogol-apps-licensing library: Google Enterprise License Manager SDK.
gogol-apps-reseller library: Google Workspace Reseller SDK.
gogol-apps-tasks library: Google Tasks SDK.
gogol-appstate library: Google App State SDK.
gogol-autoscaler library: Google Compute Engine Autoscaler SDK.
gogol-bigquery library: Google BigQuery SDK.
gogol-bigquerydatatransfer library: Google BigQuery Data Transfer SDK.
gogol-bigtableadmin library: Google Cloud Bigtable Admin SDK.
gogol-billing library: Google Cloud Billing SDK.
gogol-binaryauthorization library: Google Binary Authorization SDK.
gogol-blogger library: Google Blogger SDK.
gogol-books library: Google Books SDK.
gogol-chat library: Google Chat SDK.
gogol-civicinfo library: Google Civic Information SDK.
gogol-classroom library: Google Classroom SDK.
gogol-cloudasset library: Google Cloud Asset SDK.
gogol-clouderrorreporting library: Google Error Reporting SDK.
gogol-cloudfunctions library: Google Cloud Functions SDK.
gogol-cloudidentity library: Google Cloud Identity SDK.
gogol-cloudiot library: Google Cloud IoT SDK.
gogol-cloudkms library: Google Cloud Key Management Service (KMS) SDK.
gogol-cloudmonitoring library: Google Cloud Monitoring SDK.
gogol-cloudprivatecatalog library: Google Cloud Private Catalog SDK.
gogol-cloudprivatecatalogproducer library: Google Cloud Private Catalog Producer SDK.
gogol-cloudprofiler library: Google Cloud Profiler SDK.
gogol-cloudscheduler library: Google Cloud Scheduler SDK.
gogol-cloudsearch library: Google Cloud Search SDK.
gogol-cloudshell library: Google Cloud Shell SDK.
gogol-cloudtasks library: Google Cloud Tasks SDK.
gogol-cloudtrace library: Google Cloud Trace SDK.
gogol-commentanalyzer library: Google Perspective Comment Analyzer SDK.
gogol-composer library: Google Cloud Composer SDK.
gogol-compute library: Google Compute Engine SDK.
gogol-consumersurveys library: Google Consumer Surveys SDK.
gogol-container library: Google Kubernetes Engine SDK.
gogol-containeranalysis library: Google Container Analysis SDK.
gogol-containerbuilder library: Google Cloud Build SDK.
gogol-core library and test: Core data types and functionality for Gogol libraries.
gogol-customsearch library: Google Custom Search SDK.
gogol-dataflow library: Google Dataflow SDK.
gogol-datafusion library: Google Cloud Data Fusion SDK.
gogol-dataproc library: Google Cloud Dataproc SDK.
gogol-datastore library: Google Cloud Datastore SDK.
gogol-debugger library: Google Cloud Debugger API (Deprecated) SDK.
gogol-deploymentmanager library: Google Cloud Deployment Manager V2 SDK.
gogol-dfareporting library: Google Campaign Manager 360 SDK.
gogol-dialogflow library: Google Dialogflow SDK.
gogol-digitalassetlinks library: Google Digital Asset Links SDK.
gogol-discovery library: Google API Discovery Service SDK.
gogol-dlp library: Google Sensitive Data Protection (DLP) SDK.
gogol-dns library: Google Cloud DNS SDK.
gogol-docs library: Google Docs SDK.
gogol-doubleclick-bids library: Google DoubleClick Bid Manager SDK.
gogol-doubleclick-search library: Google Search Ads 360 SDK.
gogol-drive library: Google Drive SDK.
gogol-driveactivity library: Google Drive Activity SDK.
gogol-factchecktools library: Google Fact Check Tools SDK.
gogol-file library: Google Cloud Filestore SDK.
gogol-firebase-dynamiclinks library: Google Firebase Dynamic Links SDK.
gogol-firebase-rules library: Google Firebase Rules SDK.
gogol-firebasehosting library: Google Firebase Hosting SDK.
gogol-firebaseremoteconfig library: Google Firebase Remote Config SDK.
gogol-firestore library: Google Cloud Firestore SDK.
gogol-fitness library: Google Fitness SDK.
gogol-fonts library: Google Web Fonts Developer SDK.
gogol-freebasesearch library: Google Freebase Search SDK.
gogol-fusiontables library: Google Fusion Tables SDK.
gogol-games library: Google Play Game Services SDK.
gogol-games-configuration library: Google Play Game Services Publishing SDK.
gogol-games-management library: Google Play Game Management SDK.
gogol-genomics library: Google Genomics SDK.
gogol-gmail library: Google Gmail SDK.
gogol-groups-migration library: Google Groups Migration SDK.
gogol-groups-settings library: Google Groups Settings SDK.
gogol-healthcare library: Google Cloud Healthcare SDK.
gogol-iam library: Google Identity and Access Management (IAM) SDK.
gogol-iamcredentials library: Google IAM Service Account Credentials SDK.
gogol-iap library: Google Cloud Identity-Aware Proxy SDK.
gogol-identity-toolkit library: Google Identity Toolkit SDK.
gogol-indexing library: Google Web Search Indexing SDK.
gogol-jobs library: Google Cloud Talent Solution SDK.
gogol-kgsearch library: Google Knowledge Graph Search SDK.
gogol-language library: Google Cloud Natural Language SDK.
gogol-latencytest library: Google Cloud Network Performance Monitoring SDK.
gogol-libraryagent library: Google Library Agent SDK.
gogol-logging library: Google Cloud Logging SDK.
gogol-manufacturers library: Google Manufacturer Center SDK.
gogol-maps-coordinate library: Google Maps Coordinate SDK.
gogol-maps-engine library: Google Maps Engine SDK.
gogol-mirror library: Google Mirror SDK.
gogol-ml library: Google AI Platform Training & Prediction SDK.
gogol-monitoring library: Google Cloud Monitoring SDK.
gogol-oauth2 library: Google OAuth2 SDK.
gogol-oslogin library: Google Cloud OS Login SDK.
gogol-pagespeed library: Google PageSpeed Insights SDK.
gogol-partners library: Google Partners SDK.
gogol-people library: Google People SDK.
gogol-photoslibrary library: Google Photos Library SDK.
gogol-play-moviespartner library: Google Play Movies Partner SDK.
gogol-playcustomapp library: Google Play Custom App Publishing SDK.
gogol-plus library: Google + SDK.
gogol-plus-domains library: Google + Domains SDK.
gogol-poly library: Google Poly SDK.
gogol-prediction library: Google Prediction SDK.
gogol-proximitybeacon library: Google Proximity Beacon SDK.
gogol-pubsub library: Google Cloud Pub/Sub SDK.
gogol-qpxexpress library: Google QPX Express SDK.
gogol-recaptcha-enterprise library: Google reCAPTCHA Enterprise SDK.
gogol-redis library: Google Cloud Memorystore for Redis SDK.
gogol-remotebuildexecution library: Google Remote Build Execution SDK.
gogol-replicapool library: Google Replica Pool SDK.
gogol-replicapool-updater library: Google Compute Engine Instance Group Updater SDK.
gogol-resourcemanager library: Google Cloud Resource Manager SDK.
gogol-resourceviews library: Google Compute Engine Instance Groups SDK.
gogol-run library: Google Cloud Run Admin SDK.
gogol-runtimeconfig library: Google Cloud Runtime Configuration SDK.
gogol-safebrowsing library: Google Safe Browsing SDK.
gogol-script library: Google Apps Script SDK.
gogol-searchconsole library: Google Search Console SDK.
gogol-securitycenter library: Google Security Command Center SDK.
gogol-servicebroker library: Google Service Broker SDK.
gogol-serviceconsumermanagement library: Google Service Consumer Management SDK.
gogol-servicecontrol library: Google Service Control SDK.
gogol-servicemanagement library: Google Service Management SDK.
gogol-servicenetworking library: Google Service Networking SDK.
gogol-serviceusage library: Google Service Usage SDK.
gogol-serviceuser library: Google Service User SDK.
gogol-sheets library: Google Sheets SDK.
gogol-shopping-content library: Google Content API for Shopping SDK.
gogol-siteverification library: Google Site Verification SDK.
gogol-slides library: Google Slides SDK.
gogol-sourcerepo library: Google Cloud Source Repositories SDK.
gogol-spanner library: Google Cloud Spanner SDK.
gogol-spectrum library: Google Spectrum Database SDK.
gogol-speech library: Google Cloud Speech-to-Text SDK.
gogol-sqladmin library: Google Cloud SQL Admin SDK.
gogol-storage library: Google Cloud Storage JSON SDK.
gogol-storage-transfer library: Google Storage Transfer SDK.
gogol-streetviewpublish library: Google Street View Publish SDK.
gogol-surveys library: Google Surveys SDK.
gogol-tagmanager library: Google Tag Manager SDK.
gogol-taskqueue library: Google TaskQueue SDK.
gogol-testing library: Google Cloud Testing SDK.
gogol-texttospeech library: Google Cloud Text-to-Speech SDK.
gogol-toolresults library: Google Cloud Tool Results SDK.
gogol-tpu library: Google Cloud TPU SDK.
gogol-tracing library: Google Tracing SDK.
gogol-translate library: Google Cloud Translation SDK.
gogol-urlshortener library: Google URL Shortener SDK.
gogol-useraccounts library: Google Cloud User Accounts SDK.
gogol-vault library: Google Vault SDK.
gogol-videointelligence library: Google Cloud Video Intelligence SDK.
gogol-vision library: Google Cloud Vision SDK.
gogol-webmaster-tools library: Google Search Console SDK.
gogol-websecurityscanner library: Google Web Security Scanner SDK.
gogol-youtube library: Google YouTube Data API v3 SDK.
gogol-youtube-analytics library: Google YouTube Analytics SDK.
gogol-youtube-reporting library: Google YouTube Reporting SDK.
google-cloud library: Client for the Google Cloud APIs
google-oauth2-jwt library: Get a signed JWT for Google Service Accounts

Google Cloud

hs-opentelemetry-instrumentation-gogol library and test: OpenTelemetry instrumentation for the Gogol Google Cloud SDK

Gps

flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.

GPU

gpu-vulkan library and test: Vulkan library
gpu-vulkan-core library and test: Thin wrapper for Vulkan API
gpu-vulkan-core-khr-surface library and test: Thin wrapper for VK_KHR_surface extension of the Vulkan API
gpu-vulkan-core-khr-swapchain library and test: Thin wrapper for VK_KHR_swapchain extension of the Vulkan API
gpu-vulkan-khr-surface library and test: VK_KHR_surface extension of the Vulkan API
gpu-vulkan-khr-surface-glfw library and test: GLFW surface for Vulkan
gpu-vulkan-khr-swapchain library and test: VK_KHR_swapchain extension of the Vulkan API
gpu-vulkan-middle library and test: Medium wrapper for Vulkan API
gpu-vulkan-middle-khr-surface library and test: medium wrapper for VK_KHR_surface extension of the Vulkan API
gpu-vulkan-middle-khr-surface-glfw library and test: medium wrapper for GLFW surface for the Vulkan API
gpu-vulkan-middle-khr-swapchain library and test: medium wrapper for VK_KHR_swapchain extension of the Vulkan API
OpenCL library and test: Haskell high-level wrapper for OpenCL
shady-gen library: Functional GPU programming - DSEL & compiler
webgpu-dawn library, programs and test: Haskell bindings to WebGPU Dawn for GPU computing and graphics

Grafana

stratosphere-grafana library: Stratosphere integration for AWS Grafana.

Graph

dijkstra-simple library and test: A simpler Dijkstra shortest paths implementation
gbu library: planar graph embedding into a plane
graph-trace library: Trace the call graph of a program
graph-trace-dot library and program: Converts a graph-trace log into a DOT file for use with Graphviz
graph-trace-viz program: Converts a graph-trace log into an HTML document
math-grads library and tests: Library containing graph data structures and graph algorithms
superbubbles library and test: Find "superbubbles", as described in https://arxiv.org/abs/1307.7925
topograph library: Directed acyclic graphs.

Graphics

3d-graphics-examples programs: Examples of 3D graphics programming with OpenGL
3dmodels library: 3D model parsers
AC-Colour library: Efficient RGB colour types.
AC-EasyRaster-GTK library: GTK+ pixel plotting.
AC-PPM library: Trivial package for writing PPM images.
AC-Vector library: Efficient geometric vectors and transformations.
AC-Vector-Fancy library: Fancy type-system stuff for AC-Vector
amby library, test and benchmark: Statistical data visualization
ansigraph library and test: Terminal-based graphing via ANSI and Unicode
aosd library and test: Bindings to libaosd, a library for Cairo-based on-screen displays
ascii-holidays program: ASCII animations for the holidays!
assimp library: The Assimp asset import library
atlas library and test: Skyline rectangle packing
Attrac program: Visualisation of Strange Attractors in 3-Dimensions
autom library: Generates and displays patterns from next nearest neighbors cellular automata
avatar-generator program: A simple random avatar icon generator
awesomium library: High-level Awesomium bindings.
awesomium-glut library: Utilities for using Awesomium with GLUT.
awesomium-raw library: Low-level Awesomium bindings.
babl library: Haskell bindings to BABL library.
bacteria program: braindead utility to compose Xinerama backgrounds
barchart library and program: Creating Bar Charts in Haskell
barcodes-code128 library: Generate Code 128 barcodes as PDFs
barrier library, programs and test: Shields.io style badge generator
bearlibterminal library and program: Low-level Haskell bindings to the BearLibTerminal graphics library.
bidi-icu library and test: The unicode bidirectional algorithm via ICU
billeksah-forms library: Leksah library
billeksah-pane library: Leksah library
bindings-GLFW library and test: Low-level bindings to GLFW OpenGL library
bindings-linux-videodev2 library: bindings to Video For Linux Two (v4l2) kernel interfaces
bindings-potrace library: Low-level bindings to the potrace bitmap tracing library
bitmap library: A library for handling and manipulating bitmaps (rectangular pixel arrays).
bitmap-opengl library: OpenGL support for Data.Bitmap.
bitmaps library: Bitmap library
blank-canvas library: HTML5 Canvas Graphics Library
blaze-svg library: SVG combinator library
Blobs library and program: Diagram editor
boring-window-switcher library, program and test: A boring window switcher.
brick library, programs and test: A declarative terminal user interface library
brick-dropdownmenu library and program: A drop-down menu widget for brick.
brick-panes library, program and test: Panes library for Brick providing composition and isolation for TUI apps.
brick-skylighting library and program: Show syntax-highlighted text in your Brick UI
brillo library: Painless 2D vector graphics, animations, and simulations powered by GLFW
brillo-algorithms library: Data structures and algorithms for working with 2D graphics.
brillo-examples programs: Examples using the Brillo library
brillo-export library, program and tests: Export Brillo pictures to png, bmp, tga, tiff, gif, svg and juicy-pixels-image
brillo-juicy library and program: Load any image supported by Juicy.Pixels in your brillo application
brillo-rendering library: Brillo picture data types and rendering functions.
brush-strokes library, tests and benchmarks: Toolkit for Bézier curves and brush stroking
brush-stroking library: Brush strokes document model and renderer
butterflies library and program: butterfly tilings
cairo library: Binding to the Cairo library.
cairo-canvas library and program: Simpler drawing API for Cairo.
cairo-core library: Cairo Haskell binding (partial)
cairo-image library and tests: Image for Cairo
cal3d library: Haskell binding to the Cal3D animation library.
cal3d-examples programs: Examples for the Cal3d animation library.
cal3d-opengl library: OpenGL rendering for the Cal3D animation library
call-plantuml library and test: A simple library to call PlantUML given a diagram specification
camh program: write image files onto 256(or 24bit) color terminals.
caramia library, programs and tests: High-level OpenGL bindings
carettah programs: A presentation tool written with Haskell.
cattrap library, programs and test: Lays out boxes according to the CSS Box Model.
cellrenderer-cairo library: Cairo-based CellRenderer
chalkboard library and programs: Combinators for building and processing 2D images.
chalkboard-viewer library: OpenGL based viewer for chalkboard rendered images.
Chart library: A library for generating 2D Charts and Plots
Chart-cairo library: Cairo backend for Charts.
chart-cli program: Command-line utility to draw charts from input data easily
Chart-diagrams library: Diagrams backend for Charts.
Chart-fltkhs library and programs: A backend for the Chart library for FLTKHS
Chart-gtk library: Utility functions for using the chart library with GTK
Chart-gtk3 library: Utility functions for using the chart library with GTK
chart-histogram library: Easily render histograms with Chart
Chart-simple library: ...
chart-svg library: Charting library targetting SVGs.
Chart-tests program and test: Tests of the Charts library.
Chitra program: A platform independent mechanism to render graphics using vnc.
clay library and test: CSS preprocessor as embedded Haskell.
clisparkline library and test: Tiny library to pretty print sparklines onto the CLI
collada-output library and program: Generate animated 3d objects in COLLADA
collada-types library: Data exchange between graphics applications
Color library, test and benchmarks: Color spaces and conversions between them
color-counter library and program: Count colors in images
colour library and test: A model for human colour/color perception
colour-accelerate library: Working with colours in Accelerate
colour-space library and test: Instances of the manifold-classes for colour types
colour-text library and test: Print and parse colors
computational-geometry library: Collection of algorithms in Computational Geometry.
context-free-art library, program and test: Generate art from context-free grammars
craftwerk library and programs: 2D graphics library with integrated TikZ output.
craftwerk-cairo library: Cairo backend for Craftwerk.
craftwerk-gtk library and program: Gtk UI for Craftwerk.
crocodile program: An offline renderer supporting ray tracing and photon mapping
csg library, program, tests and benchmark: Analytical CSG (Constructive Solid Geometry) library
cubicbezier library and test: Efficient manipulating of 2D cubic bezier curves.
curves library: Library for drawing curve based images.
CV library: OpenCV based machine vision library
cv-combinators library and program: Functional Combinators for Computer Vision
d3d11binding library and programs: A raw binding for the directX 11
d3js library: Declarative visualization on a web browser with DSL approach.
dear-imgui library and programs: Haskell bindings for Dear ImGui.
deepzoom library: A DeepZoom image slicer. Only known to work on 32bit Linux
definitive-graphics library: A definitive package allowing you to open windows, ...
delaunay library and test: Build a Delaunay triangulation of a set of points
derivation-trees library: Typeset Derivation Trees via MetaPost
dia-base library: An EDSL for teaching Haskell with diagrams - data types
dia-functions library: An EDSL for teaching Haskell with diagrams - functions
diagrams library: Embedded domain-specific language for declarative vector graphics
diagrams-boolean library: deprecated, part of diagrams-contrib since 1.4
diagrams-braille library and program: Braille diagrams with plain text
diagrams-builder library and programs: hint-based build service for the diagrams graphics EDSL.
diagrams-cairo library: Cairo backend for diagrams drawing EDSL
diagrams-canvas library: HTML5 canvas backend for diagrams drawing EDSL
diagrams-contrib library and test: Collection of user contributions to diagrams EDSL
diagrams-core library: Core libraries for diagrams EDSL
diagrams-gi-cairo library: Cairo backend for diagrams drawing EDSL
diagrams-graphviz library: Graph layout and drawing with GraphViz and diagrams
diagrams-gtk library: Backend for rendering diagrams directly to GTK windows
diagrams-haddock library, program and test: Preprocessor for embedding diagrams in Haddock documentation
diagrams-hsqml library: HsQML (Qt5) backend for Diagrams
diagrams-html5 library: HTML5 canvas backend for diagrams drawing EDSL
diagrams-input library: Parse raster and SVG files for diagrams
diagrams-lib library, test and benchmark: Embedded domain-specific language for declarative graphics
diagrams-pdf library: PDF backend for diagrams drawing EDSL
diagrams-pgf library: PGF backend for diagrams drawing EDSL.
diagrams-postscript library: Postscript backend for diagrams drawing EDSL
diagrams-qrcode library: Draw QR codes to SVG, PNG, PDF or PS files.
diagrams-rasterific library and tests: Rasterific backend for diagrams.
diagrams-reflex library: reflex backend for diagrams drawing EDSL.
diagrams-rubiks-cube library: Library for drawing the Rubik's Cube.
diagrams-svg library: SVG backend for diagrams drawing EDSL.
diagrams-tikz library: TikZ backend for diagrams drawing EDSL
diagrams-wx library and program: Backend for rendering diagrams in wxWidgets
dihaa program: ASCII based Diagram drawing in Haskell (Idea based on ditaa)
dot library and program: Datatypes and encoding for graphviz dot files
dot2graphml program: Converter from GraphViz .dot format to yEd GraphML
dotparse library: dot language parsing and printing.
dvi-processing library: Read/write DVI and TFM file
dx9base library: Backend for a binding to the Microsoft DirectX 9 API.
dx9d3d library: A binding to the Microsoft DirectX 9 API.
dx9d3dx library: A binding to the Microsoft DirectX 9 D3DX API.
dyna-gloss library and test: FRP for gloss graphics and animation library
dyna-processing library and test: FRP library for processing-for-haskell package
dynamic-graph library: Draw and update graphs in real time with OpenGL
dynamic-plot library: Interactive diagram windows
earclipper library, program and test: Ear Clipping Triangulation
easyplot library: A tiny plotting library, utilizes gnuplot for plotting.
easyrender library: User-friendly creation of EPS, PostScript, and PDF files
easytensor-vulkan library: Use easytensor with vulkan-api.
explore program: Experimental Plot data Reconstructor
FieldTrip library: Functional 3D
fig library: Manipulation of FIG files
flatcv library and test: Haskell bindings for FlatCV image processing library
fltkhs library and programs: FLTK bindings
fltkhs-demos programs: FLTKHS demos. Please scroll to the bottom for more information.
fltkhs-fluid-demos programs: Fltkhs Fluid Demos
fltkhs-fluid-examples programs: Fltkhs Fluid Examples
fltkhs-hello-world program: Fltkhs template project
fltkhs-themes library: A set of themed widgets that provides drop in replacements to the ones in FLTKHS.
font-opengl-basic4x6 library and program: Basic4x6 font for OpenGL
FontyFruity library: A true type file format loader
fractal program: Draw Newton, Julia and Mandelbrot fractals
FractalArt program: Generates colorful wallpapers
Fractaler program
fragr library, program, test and benchmark: Frame graph (render graph) engine, renderer-agnostic
free-game library and programs: Create games for free
freenect library: Interface to the Kinect device.
freestyle library and test: Freestyle TUI graphics
freetype-simple library: Single line text rendering for OpenGL ES
freetype2 library, program and tests: Haskell bindings for FreeType 2 library
FreeTypeGL library and program: Loadable texture fonts for OpenGL.
friday library and test: A functional image processing library for Haskell.
friday-devil library: Uses the DevIL C library to read and write images from and to files and memory buffers.
friday-scale-dct library and program: Scale Friday images with DCT
FTGL library: Portable TrueType font rendering for OpenGL using the Freetype2 library
FTGL-bytestring library: Portable TrueType font rendering for OpenGL using the Freetype2 library
funcmp library: Functional MetaPost is a Haskell frontend to the MetaPost language
gb-sprite library and test: Pure Haskell 2D raster graphics engine
gb-vector library and test: Pure Haskell SVG generation
gd library: A Haskell binding to a subset of the GD graphics library
gegl library and programs: Haskell bindings to GEGL library
gelatin library and program: A graphics description language.
gelatin-fruity library: Gelatin's support for rendering TTF outlines, using FontyFruity.
gelatin-gl library and program: OpenGL rendering routines for the gelatin-picture graphics EDSL.
gelatin-sdl2 library and program: An SDL2 backend for the gelatin renderer.
geomancy library, test and benchmark: Vectors and matrix manipulation
geomancy-layout library and test: Geometry and matrix manipulation
ghci-diagrams library: Display simple diagrams from ghci
ghostscript-parallel program: Let Ghostscript render pages in parallel
gi-cairo-again library: Bridge between packages gi-* and cairo-core.
gi-cairo-connector library: GI friendly Binding to the Cairo library.
gi-cairo-render library: GI friendly Binding to the Cairo library.
gi-gio-hs-list-model library: Haskell implementation of GListModel interface from gi-gio
gi-gtk-declarative library and test: Declarative GTK+ programming in Haskell
gi-gtk-declarative-app-simple library and test: Declarative GTK+ programming in Haskell in the style of Pux.
gi-gtk-hs library: A wrapper for gi-gtk, adding a few more idiomatic API parts on top
Gifcurry library and programs: GIF creation utility.
gjk library and test: Gilbert-Johnson-Keerthi (GJK) collision detection algorithm
gjk2d library and test
gl library: Complete OpenGL raw bindings
gl-block library, test and benchmark: OpenGL standard memory layouts
gl-capture library: simple image capture from OpenGL
gl3w library: Haskell bindings for the gl3w library.
glade library: Binding to the glade library.
glapp library and program: An OpenGL micro framework.
Gleam library: HTML Canvas graphics, animations and simulations.
GLFW library: A Haskell binding for GLFW
GLFW-b library and test: Bindings to GLFW OpenGL library
GLFW-b-demo program: GLFW-b demo
glfw-group library and test: GLFW package with window groups destroyed together
GLFW-OGL library: A binding for GLFW (OGL)
GLFW-task library: GLFW utility functions to use together with monad-task.
GLHUI library: Open OpenGL context windows in X11 with libX11
glintcollider program: A simple ray tracer in an early stage of development.
GLMatrix library: Utilities for working with OpenGL matrices
glome-hs library and program: ray tracer
GlomeTrace library: Ray Tracing Library
GlomeVec library: Simple 3D vector library
GlomeView program: SDL Frontend for Glome ray tracer
gloss library: Painless 2D vector graphics, animations and simulations.
gloss-accelerate library: Extras to interface Gloss and Accelerate
gloss-algorithms library: Data structures and algorithms for working with 2D graphics.
gloss-banana library: An Interface for gloss in terms of a reactive-banana Behavior.
gloss-devil library: Display images in Gloss using libdevil for decoding
gloss-examples programs: Examples using the gloss library
gloss-export library, program and test: Export Gloss pictures to png, bmp, tga, tiff, gif and juicy-pixels-image
gloss-game library: Gloss wrapper that simplifies writing games
gloss-juicy library and program: Load any image supported by Juicy.Pixels in your gloss application
gloss-raster library: Parallel rendering of raster images.
gloss-raster-accelerate library: Parallel rendering of raster images using Accelerate
gloss-raster-massiv library and test: Massiv-based alternative for gloss-raster
gloss-relative library and programs: Painless relative-sized pictures in Gloss.
gloss-rendering library: Gloss picture data types and rendering functions.
gloss-sodium library: A Sodium interface to the Gloss drawing package.
glsl library, program and test: Parser and optimizer for a small subset of GLSL
gltf-codec library and test: glTF scene loader
gltf-loader library, program and test: High level GlTF loader
GLURaw library: A raw binding for the OpenGL graphics system
GLUT library and programs: A binding for the OpenGL Utility Toolkit
GLUtil library and program: Miscellaneous OpenGL utilities.
gmndl program: Mandelbrot Set explorer using GTK
gnuplot library and program: 2D and 3D plots using gnuplot
GoogleChart library: Generate web-based charts using the Google Chart API
GPipe library: Typesafe functional GPU graphics programming
GPipe-Collada library: Load GPipe meshes from Collada files
GPipe-Core library, test and benchmark: Typesafe functional GPU graphics programming
GPipe-Examples programs: Examples for the GPipes package
GPipe-GLFW library: GLFW OpenGL context creation for GPipe
GPipe-GLFW4 library, program, test and benchmark: GLFW OpenGL context creation for GPipe
GPipe-TextureLoad library: Load GPipe textures from filesystem
gpolyline library: Pure module for encoding/decoding Google Polyline
grafana library and test: API for creating grafana dashboards represented as json
granite library, program and test: Easy terminal plotting.
graph-rewriting-gl library: OpenGL interface for interactive port graph rewriting
graph-rewriting-layout library: Force-directed node placement intended for incremental graph drawing
graphics-drawingcombinators library and program: A functional interface to 2D drawing in OpenGL
graphics-formats-collada library: Load 3D geometry in the COLLADA format
graphicsFormats library: Classes for renderable objects.
graphicstools library and program: Tools for creating graphical UIs, based on wxHaskell.
graphviz library, program, test and benchmark: Bindings to Graphviz for graph visualisation.
gridbounds library and test: Collision detection for GridBox
gridbox library and test: A grid box model
gross library and program: A spoof on gloss for terminal animation
gruff library and program: fractal explorer GUI using the ruff library
gruff-examples programs: Mandelbrot Set examples using ruff and gruff
gruvbox-colors library: Gruvbox colors for use in Haskell
gtk library: Binding to the Gtk+ graphical user interface library.
gtk-helpers library and tests: A collection of auxiliary operations and widgets related to Gtk+
gtk-jsinput library: A simple custom form widget for gtk which allows inputing of JSON values
gtk-largeTreeStore library and test: Large TreeStore support for gtk2hs
gtk-mac-integration library: Bindings for the Gtk/OS X integration library.
gtk-scaling-image library: Generic GTK image scaling helpers for haskell-gi
gtk-serialized-event library: GTK+ Serialized event.
gtk-simple-list-view library: ...
gtk-toggle-button-list library: ...
gtk-toy library: Convenient Gtk canvas with mouse and keyboard input.
gtk-traymanager library: A wrapper around the eggtraymanager library for Linux system trays
gtk2hs-hello program: Gtk2Hs Hello World, an example package
gtk3 library and programs: Binding to the Gtk+ 3 graphical user interface library
gtk3-helpers library and tests: A collection of auxiliary operations and widgets related to Gtk
gtk3-mac-integration library: Bindings for the Gtk/OS X integration library.
gtkglext library: Binding to the GTK+ OpenGL Extension
gtkimageview library: Binding to the GtkImageView library.
gtksourceview2 library: Binding to the GtkSourceView library.
gtksourceview3 library: Binding to the GtkSourceView library.
gvti library and program: GraphViz Tabular Interface
h-raylib library and programs: Raylib bindings for Haskell
HaGL library and test: Haskell-embedded OpenGL
haha library and program: A simple library for creating animated ascii art on ANSI terminals.
handa-opengl library: Utility functions for OpenGL and GLUT
happindicator library: Binding to the appindicator library.
happy-hour library: Generate simple okay-looking bar plots without much effort
haskell-pdf-presenter program: Tool for presenting PDF-based presentations.
haskell-plot library: A library for generating 2D plots painlessly.
haskgame library: Haskell game library.
Hate library and programs: A small 2D game framework.
hayland library, program and tests: Haskell bindings for the C Wayland library.
hcad library: Haskell CAD library
HDRUtils library: Utilities for reading, manipulating, and writing HDR images
heph-aligned-storable library and test: Generically derive Storable instances suitable for CPU-GPU transfer
hevolisa program: Genetic Mona Lisa problem in Haskell
hevolisa-dph program: Genetic Mona Lisa problem in Haskell - using Data Parallel Haskell
hexif library: Reading Exif data form a JPEG file with Haskell
hfractal program: OpenGL fractal renderer
HGamer3D-Ogre-Binding library: Ogre Binding for HGamer3D
HGamer3D-SFML-Binding library: SFML Binding for HGamer3D
hgg library: A grammar of graphics plotting library for Haskell
hgg-3d library, programs and test: 3D plot (CPU projection) for hgg; works with all 2D backends
hgg-analyze-bridge library, programs and test: Bridge from hanalyze (Hanalyze.Model.HBM.ModelGraph) to hgg DAG rendering
hgg-core library and test: Core of hgg: VisualSpec / PlotData / Layout / Render primitives
hgg-custom library: Non-standard / advanced custom marks for hgg (dendrogram, ...)
hgg-dataframe library and test: Hackage dataframe binding for hgg (PlotData instance for DataFrame)
hgg-frame library and test: DataFrame abstraction (class PlotData) and the df |>> spec binding for hgg
hgg-ihaskell library, program and test: iHaskell (Jupyter) inline display backend for hgg
hgg-latex library and test: LaTeX (TikZ) backend for hgg
hgg-pdf library and test: PDF backend for hgg (HPDF)
hgg-rasterific library and test: PNG backend for hgg (Rasterific + JuicyPixels)
hgg-svg library, programs and test: SVG backend for hgg (pure Haskell)
HGL library: A simple graphics library based on X11 or Win32
hgl-example program: Various animations generated using HGL
hierarchical-clustering-diagrams library and test: Draw diagrams of dendrograms made by hierarchical-clustering.
Hieroglyph library: Purely functional 2D graphics for visualization.
himg library and program: Simple gtk2hs image viewer. Point it at an image and fire away.
hip library, test and benchmarks: Haskell Image Processing (HIP) Library.
hls library: Haskell Lindenmayer Systems
hOff-display library and program: The tool to transform the OFF to other image format.
hogre library: Haskell binding to a subset of OGRE
hogre-examples programs: Examples for using Hogre.
honi library and test: OpenNI 2 binding
hoodle-render library: Hoodle file renderer
HOpenCV library and program: A binding for the OpenCV computer vision library
HPDF library, program and test: Generation of PDF documents
HPlot library and program: A minimal monadic PLplot interface for Haskell
hps library: Haskell Postscript
hps-cairo library and programs: Cairo rendering for the haskell postscript library
HRay program: Haskell raytracer
HROOT library: Haskell binding to the ROOT data analysis framework
HROOT-core library: Haskell binding to ROOT Core modules
HROOT-graf library: Haskell binding to ROOT Graf modules
HROOT-hist library: Haskell binding to ROOT Hist modules
HROOT-io library: Haskell binding to ROOT IO modules
HROOT-math library: Haskell binding to ROOT Math modules
HROOT-tree library: Haskell binding to ROOT Tree modules
hs-captcha library: Generate images suitable for use as CAPTCHAs in online web-form security.
hs-gchart library: Haskell wrapper for the Google Chart API
hsexif library and test: EXIF handling library in pure Haskell
HsHaruPDF library: Haskell binding to libharu (http://libharu.sourceforge.net/)
hsmagick library: FFI bindings for the GraphicsMagick library
hsparklines library: Sparklines for Haskell
hsqml library and test: Haskell binding for Qt Quick
hsqml-datamodel library: HsQML (Qt5) data model.
hsqml-datamodel-vinyl library: HsQML DataModel instances for Vinyl Rec.
hsqml-demo-morris program: HsQML-based implementation of Nine Men's Morris
hsqml-demo-notes programs: Sticky notes example program implemented in HsQML
hsqml-demo-samples programs: HsQML sample programs
hsqml-morris program: HsQML-based implementation of Nine Men's Morris
htdp-image library and test: Beginner friendly graphics library.
HTicTacToe program: An SDL tic-tac-toe game.
hubigraph library: A haskell wrap for Ubigraph
hvega library, programs and test: Create Vega-Lite visualizations (version 4) in Haskell.
hvega-theme library: Theme for hvega.
hylide library and program: WebGL live-coding environment for writing shaders with Hylogen
hylogen library: GLSL embedded in Haskell
hyper library: Display class for the HyperHaskell graphical Haskell interpreter
hyper-extra library: Display instances for the HyperHaskell graphical Haskell interpreter
IcoGrid library: Library for generating grids of hexagons and pentagons mapped to a sphere.
icon-fonts library: Package for handling icon fonts in Haskell
identicon library, test and benchmark: Flexible generation of identicons
identicon-style-squares library and test: Squares style for the identicon package
IFS library and program: Iterated Function System generation for Haskell
ige-mac-integration library: Bindings for the Gtk/OS X integration library.
image-type library: Determine the type of an image by reading the first bytes.
imagefilters library: Image Filters (contrast, brightness, gaussian blur, etc)
imagemagick library, programs and test: bindings to imagemagick library
imagesize-conduit library and test: Determine the size of some common image formats.
imj-animation library and test: Animation Framework
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.
Imlib library
implicit library, programs, test and benchmarks: A math-inspired programmatic 2D & 3D CAD system.
integration library: Fast robust numeric integration via tanh-sinh quadrature
internetmarke program: Shell command for constructing custom stamps for German Post
IrrHaskell library: Haskell FRP binding to the Irrlicht game engine.
isiz program: A program to show the size of image and whether suitable for wallpaper.
itemfield library, programs and tests: A brick Widget for selectable summary of many elements on a terminal
iterm-show-diagrams library: Orphan Show instances for diagrams package that render inline in some terminals
jort program: JP's own ray tracer
jpeg library: A library for decoding JPEG files written in pure Haskell
juicy-draw library and program: Draw and fill lines, rectangles and polygons
juicy-gcode program: SVG to G-Code converter
JuicyCairo library and test: To use images of JuicyPixels from Cairo
JuicyPixels library: Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance)
JuicyPixels-blp library and program: BLP format decoder/encoder over JuicyPixels library
JuicyPixels-blurhash library, program and tests: Blurhash is a very compact represenation of a placeholder for an image
JuicyPixels-canvas library: Functions for drawing lines, squares and so on pixel by pixel
JuicyPixels-extra library, test and benchmark: Efficiently scale, crop, flip images with JuicyPixels
JuicyPixels-repa library: Convenience functions to obtain array representations of images.
JuicyPixels-scale-dct library and test: Scale JuicyPixels images with DCT
JuicyPixels-stbir library: Scale JuicyPixels images with stb_image_resize
KdTree library and test: KdTree, for efficient search in K-dimensional point clouds.
ktx library: A binding for libktx from Khronos
ktx-codec library and test: Khronos texture format
ktx-font library: GPU-ready rasterized fonts
lambda-canvas library: Educational drawing canvas for FP explorers.
lambdacube-bullet library: Example for combining LambdaCube and Bullet
lambdacube-compiler library and programs: LambdaCube 3D is a DSL to program GPUs
lambdacube-core library: LambdaCube 3D IR
lambdacube-edsl library: LambdaCube 3D EDSL definition
lambdacube-engine library: 3D rendering engine written entirely in Haskell
lambdacube-examples programs: Examples for LambdaCube
lambdacube-gl library and programs: OpenGL 3.3 Core Profile backend for LambdaCube 3D
lambdacube-ir library: LambdaCube 3D intermediate representation of 3D graphics pipelines
lambdacube-samples programs: Samples for LambdaCube 3D
language-glsl library, program and test: GLSL abstract syntax tree, parser, and pretty-printer
layered-graph-drawing library and program: Layered Graph Drawing after Sugiyama
line-drawing library and test: raster line drawing
linear-opengl library: Isomorphisms between linear and OpenGL types
linux-framebuffer library: Linux fbdev (framebuffer device, /dev/fbX) utility functions
liveplot library and programs: Liveplotting
load-font library and program: A cross platform library for loading bundled fonts into your application
louis library: Turning images into text using Braille font
lowgl library: Basic gl wrapper and reference
lp-diagrams library: An EDSL for diagrams based based on linear constraints
lp-diagrams-svg library and program: SVG Backend for lp-diagrams
lucid-extras library and test: Generate more HTML with Lucid - Bootstrap, Rdash, Vega-Lite, Leaflet JS, Email.
lucid-svg library: DSL for SVG using lucid for HTML
lui library: Purely FunctionaL User Interface
luminance library: Type-safe, type-level and stateless graphics framework
luminance-samples programs: Luminance samples
mandulia program: A zooming visualisation of the Mandelbrot Set as many Julia Sets.
mars library: Generates mountainous terrain using a random walk algorithm.
matplotlib library and test: Bindings to Matplotlib; a Python plotting library
mcmaster-gloss-examples programs
Michelangelo library: OpenGL for dummies
minilight library, programs and test: A SDL2-based graphics library, batteries-included.
minilight-lua library and program: A binding library of minilight for Lua langauge.
minimung program: Shows how to run grabber on Mac OS X
minitypeset-opengl library: Layout and render text with TrueType fonts using OpenGL
mmsyn4 library and program: The "glue" between electronic tables and GraphViz
Mondrian library, programs and test: Renders backgrounds & borders
mosaico-lib library: Generación interactiva de mosaicos
msdf-atlas library and test: Types and parser for the MSDF atlas layout
nanovg library, program and test: Haskell bindings for nanovg
nanovg-simple library and program: Simple interface to rendering with NanoVG
nehe-tuts programs: Port of the NeHe OpenGL tutorials to Haskell.
nerd-font-icons library: Nerd Font Icons for use in haskell
netpbm library, test and benchmark: Loading PBM, PGM, PPM image files
Noise library: A Haskell coherent noise generator based on libnoise
not-gloss library: Painless 3D graphics, no affiliation with gloss
not-gloss-examples programs: examples for not-gloss
null-canvas library: HTML5 Canvas Graphics Library - forked Blank Canvas
number-wall library, test and benchmark: Create number walls and save them as images
nymphaea program: An interactive GUI for manipulating L-systems
obj library: Reads and writes obj models.
oculus library: Oculus Rift ffi providing head tracking data
off-simple library: A parser for simplified-syntax OFF files
OGL library: A context aware binding for the OpenGL graphics system
ois-input-manager library: wrapper for OIS input manager for use with hogre
ombra library: Render engine.
opencascade-hs library: Thin Wrapper for the OpenCASCADE CAD Kernel
OpenCL library and test: Haskell high-level wrapper for OpenCL
OpenCLRaw library: The OpenCL Standard for heterogenous data-parallel computing
opencv library, tests and benchmark: Haskell binding to OpenCV-3.x
opencv-extra library and test: Haskell binding to OpenCV-3.x extra modules
openexr-write library and test: Library for writing images in OpenEXR HDR file format.
OpenGL library: A binding for the OpenGL graphics system
opengl-dlp-stereo library and program: Library and example for using DLP stereo in OpenGL
opengl-spacenavigator library and program: Library and example for using a SpaceNavigator-compatible 3-D mouse with OpenGL
OpenGLCheck library: Quickcheck instances for various data structures.
opengles library, programs and test: Functional interface for OpenGL 4.1+ and OpenGL ES 2.0+
OpenGLRaw library: A raw binding for the OpenGL graphics system
OpenGLRaw21 library: The intersection of OpenGL 2.1 and OpenGL 3.1 Core
OpenSCAD library and test: ADT wrapper and renderer for OpenSCAD models.
OpenVG library: OpenVG (ShivaVG-0.2.1) binding
OpenVGRaw library: Raw binding to OpenVG (ShivaVG-0.2.1 implementation).
oscpacking library: Implements an osculatory packing (kissing circles) algorithm and display.
pango library: Binding to the Pango text rendering engine.
parsnip library: A fast, minimal parser
patch-image programs: Compose a big image from overlapping parts
pcd-loader library, program and test: PCD file loader.
pcf-font library: PCF font parsing and rendering library.
pcf-font-embed library: Template Haskell for embedding text rendered using PCF fonts.
PenroseKiteDart library, test and benchmark: Library to explore Penrose's Kite and Dart Tilings.
pgm library: Pure Haskell implementation of PGM image format
phraskell program: A fractal viewer.
pictikz program: Converts a svg image to tikz code.
pixelated-avatar-generator library, program and test: A library and application for generating pixelated avatars.
plot library: A plotting library, exportable as eps/pdf/svg/png or renderable with gtk
plot-gtk library: GTK plots and interaction with GHCi
plot-gtk3 library: GTK3 plots and interaction with GHCi
Plot-ho-matic library and programs: Real-time line plotter for generic data
plot-light library and test: A lightweight plotting library, exporting to SVG
plot-light-examples library and programs: Example binaries for plot-light
plotfont library and test: Plotter-like fonts i.e. a series of straight lines which make letter shapes.
plotlyhs library: Haskell bindings to Plotly.js
plots library: Diagrams based plotting library
ply-loader library and program: PLY file loader.
png-chunk-yaftee library and test: PNG's chunk codec on Yaftee
pnm library: PNM image format header parsing and pretty printing
poppler library: Binding to the Poppler.
potrace library: Trace bitmap images to paths using potrace
potrace-diagrams library: Potrace bindings for the diagrams library
prettychart library and program: Pretty print charts from ghci.
prettyprinter-graphviz library: A prettyprinter backend for graphviz
prettyprinter-vty library: prettyprinter backend for vty
printxosd program: Simple tool to display some text on an on-screen display
prizm library and test: Convert colors to different color spaces, interpolate colors, and transform colors
probability library: Probabilistic Functional Programming
processing library: Web graphic applications with processing.js.
processing-for-haskell library: Computer graphics for kids and artists with Processing implemented in Haskell.
propane library: Functional synthesis of images and animations
puzzle-draw library, programs and test: Creating graphics for pencil puzzles.
puzzle-draw-cmdline program: Creating graphics for pencil puzzles, command line tools.
qrcode-juicypixels library: Converts a qrcode-core image to JuicyPixels
qt library: Qt bindings
qtah-cpp-qt5 library: Qt bindings for Haskell - C++ library
qtah-cpp-qt6 library: Qt bindings for Haskell - C++ library
qtah-examples program: Example programs for Qtah Qt bindings
qtah-generator library and program: Generator for Qtah Qt bindings
qtah-qt5 library and test: Qt bindings for Haskell
qtah-qt6 library and test: Qt bindings for Haskell
QuickPlot library and program: Quick and easy data visualization with Haskell
Rasterific library: A pure haskell drawing engine.
rasterific-svg library and program: SVG renderer based on Rasterific.
raylib-imgui library and program: Haskell bindings for rlImGui
raytrace library and test: Ray tracing library
reactive-banana-sdl library: Reactive Banana bindings for SDL
reactive-banana-sdl2 library and test: Reactive Banana integration with SDL2
reactive-fieldtrip library: Connect Reactive and FieldTrip
reactive-glut library: Connects Reactive and GLUT
reanimate library and test: Animation library based on SVGs.
reanimate-svg library and test: SVG file loader and serializer
record-gl library and test: Utilities for working with OpenGL's GLSL shading language and Nikita Volkov's "Record"s.
reflex-dom-svg library: Reflex functions for SVG elements.
reflex-gloss library: An reflex interface for gloss.
renderable library: An API for managing renderable resources.
repa-v4l2 library and program: Provides high-level access to webcams.
retroclash-sim library: High-level simulators from the book "Retrocomputing with Clash"
rhythm-game-tutorial programs: Haskell rhythm game tutorial
rigel-viz library and test: A mid-level wrapper for vega-lite
robot library: Simulate keyboard and mouse events
rsagl library: The RogueStar Animation and Graphics Library
rsi-break library, programs and test: Let your mind know that your hands need a rest!
scaleimage program: Scale an image to a new geometry
scenegraph library and test: Scene Graph
sdl-try-drivers program: small testing tool for sdl2 and accelerated drivers
sdl2 library, programs and test: Both high- and low-level bindings to the SDL library (version 2.0.6+).
sdl2-cairo library: Render with Cairo on SDL textures.
sdl2-cairo-image library: An image loading and rendering library for sdl2 / sdl2-cairo
sdl2-compositor library, programs and test: image compositing with sdl2 - declarative style
sdl2-gfx library and program: Haskell bindings to SDL2_gfx
sdl2-image library and program: Haskell bindings to SDL2_image
sdl2-ttf library and program: Bindings to SDL2_ttf.
sdl3-bindgen-sys library: Complete SDL3 bindings, raw + curated, generated by hs-bindgen
servant-JuicyPixels library and program: Servant support for JuicyPixels
SFML-control library: Higher level library on top of SFML
sfnt2woff library, program and test: A command line tool to convert TrueType/OpenType fonts to WOFF format
SFont library: SFont SDL Bitmap Fonts
SGdemo program: An example of using the SG and OpenGL libraries
shady-graphics library: Functional GPU programming - DSEL & compiler
shine library: Declarative graphics for the browser using GHCJS
shine-examples programs: Examples for the shine package
shine-varying library and tests: FRP interface for shine using the varying package
simple-cairo library and tests: Binding to Cairo library
simple-firewire library: Simplified interface for firewire cameras
simple-pango library and test: Binding to Pango library
simple-ui library: UI library for terminal.
SimpleGL library: A Simple Graphics Library from the SimpleH framework.
sixel library and program: Sixel library to show images in a terminal emulator
Slides library and test: Generate slides from Haskell code
smallpt-hs program: A Haskell port of the smallpt path tracer.
soegtk library: GUI functions as used in the book "The Haskell School of Expression".
spirv-enum library: SPIR-V enumerations generated from Khronos JSON.
spirv-headers library, program and test: Types and generator for SPIR-V JSON spec.
spirv-reflect-ffi library and test: C-library loader for spirv-reflect tool.
spirv-reflect-types library: Data types from spirv-reflect tool.
spirv-reflect-yaml library and test: YAML loader for spirv-reflect tool.
splines library, test and benchmark: B-Splines, other splines, and NURBS.
splot program: A tool for visualizing the lifecycle of many concurrent multi-staged processes.
sscan program: text UI for scanning with SANE
stacked-dag library, program and test: Ascii DAG(Directed acyclic graph) for visualization of dataflow
static-canvas library: DSL to generate HTML5 Canvas javascript.
stb-image library: A wrapper around Sean Barrett's JPEG/PNG decoder
stb-image-redux library and test: Image loading and writing microlibrary
stb-truetype library: A wrapper around Sean Barrett's TrueType rasterizer library.
STL library: STL 3D geometry format parsing and pretty-printing
streaming-png library and program: Perfectly streaming PNG image decoding
stunts program: A revival of the classic game Stunts (LambdaCube tech demo)
svg-builder library: DSL for building SVG.
svg-builder-fork library: DSL for building SVG.
svg-icons library and program: Svg Icons and more
svg-tree library: SVG file loader and serializer
svgcairo library: Binding to the libsvg-cairo library.
SVGFonts library: Fonts from the SVG-Font format
SvgIcons library: Svg Icons and more
svgone library and program: Optimise SVGs
SVGPath library: Parsing the path command of SVG
svgutils library and program: Helper functions for dealing with SVG files
tart library and program: Terminal Art
tdigest-Chart library and test: Chart generation from tdigest
testpattern program: Display a monitor test pattern
tga library: Reading and writing of tga image files
Thingie library: Purely functional 2D drawing
thumbnail library: generate thumbnail image
thumbnail-plus library and test: Generate thumbnails easily and safely.
thumbnail-polish library: Image thumbnail creation
timeplot program: A tool for visualizing time series from log files.
tinytools-vty library, program and test: tinytools-vty is a terminal based monospace unicode diagram editing tool
treemap-html library: Generates HTML for Data.Tree as TreeMap
treemap-html-tools library and programs: Treemap related commands for producing foldable TreeMap HTML.
TrendGraph library: A simple trend Graph script
triangulation library: triangulation of polygons
tsp-viz program: Real time TSP tour visualization.
twentefp-eventloop-graphics library: Used as Lab Assignments Environment at the University of Twente
typograffiti library and program: Just let me draw nice text already
ueberzug library and test: Haskell bindings for ueberzug to display images in the terminal
union-color library and test: Unify verious color formats
UTFTConverter library, program and test: Processing popular picture formats into .c or .raw format in RGB565
uuagc-diagrams library: Utility for drawing attribute grammar pictures with the diagrams package
v4l2 library: interface to Video For Linux Two (V4L2)
v4l2-examples programs: video for linux two examples
Vec-OpenGLRaw library: Instances and functions to interoperate Vec and OpenGL.
Vec-Transform library: This package is obsolete
vect library: A low-dimensional linear algebra library, tailored to computer graphics.
vect-opengl library: OpenGL support for the `vect' low-dimensional linear algebra library.
vector-space-opengl library and test: Instances of vector-space classes for OpenGL types
vinyl-gl library and test: Utilities for working with OpenGL's GLSL shading language and vinyl records.
Vis library: Painless 3D graphics, no affiliation with gloss
VRML library, programs and test: VRML parser and generator for Haskell
vte library: Binding to the VTE library.
vtegtk3 library: Binding to the VTE library.
vty-crossplatform programs: Cross-platform support for Vty
vty-menu library and program: A lib for displaying a menu and getting a selection using VTY
vty-windows library: Windows backend for Vty
Vulkan library: A binding for the Vulkan API
vulkan library and test: Bindings to the Vulkan graphics API.
vulkan-api library: Low-level low-overhead vulkan api bindings
vulkan-utils library and test: Utils for the vulkan package
VulkanMemoryAllocator library: Bindings to the VulkanMemoryAllocator library
wallpaper library, programs and test: A library and executable for creating wallpaper, frieze, and rosette patterns.
waterfall-cad library: Declarative CAD/Solid Modeling Library
waterfall-cad-examples library, program and test: Examples for Waterfall CAD, a Declarative CAD/Solid Modeling Library
waterfall-cad-svg library and test: Declarative CAD/Solid Modeling Library, SVG Support
WaveFront library: Parsers and utilities for the OBJ WaveFront 3D model format
wavefront-obj library and test: Wavefront .obj file loader
weak library: Weak pointer extas
webcolor-labels library and test: Plug-n-play #hex-syntax for your colors
webgpu-dawn library, programs and test: Haskell bindings to WebGPU Dawn for GPU computing and graphics
webkit library: Binding to the Webkit library.
webkitgtk3 library: Binding to the Webkit library.
WEditorBrick library and program: Text-editor widget with dynamic line-wrapping for use with Brick.
wgpu-hs library and programs: WGPU
wgpu-raw-hs library: WGPU Raw
Win32 : A binding to Windows Win32 API.
Win32-extras library: Provides missing Win32 API
wumpus-basic library: Basic objects and system code built on Wumpus-Core.
wumpus-core library: Pure Haskell PostScript and SVG generation.
wumpus-drawing library: High-level drawing objects built on Wumpus-Basic.
wumpus-microprint library: Microprints - "greek-text" pictures.
wumpus-tree library: Drawing trees
wxSimpleCanvas library: Simple zoomable canvas for wxHaskell
X11 library: A binding to the X11 graphics library
X11-extras library: Missing bindings to the X11 graphics library
X11-rm library: A binding to the resource management functions missing from X11.
X11-xdamage library: A binding to the Xdamage X11 extension library
X11-xfixes library: A binding to the Xfixes X11 extension library
X11-xft library: Bindings to the Xft and some Xrender parts
x11-xim library: A binding to the xim of X11 graphics library
x11-xinput library: Haskell FFI bindings for X11 XInput library (-lXi)
X11-xshape library: A binding to the Xshape X11 extension library
Xauth library: A binding to the X11 authentication library
xbattbar program: Simple battery indicator
xdot library and program: Parse Graphviz xdot files and interactively view them using GTK and Cairo
xhb library: X Haskell Bindings
xhb-atom-cache library: Atom cache for XHB
xhb-ewmh library: EWMH utilities for XHB
xosd library: A binding to the X on-screen display
xournal-render library: Xournal file renderer
xtest library: Thin FFI bindings to X11 XTest library
yampa-canvas library and program: blank-canvas frontend for Yampa
yampa-glfw library and program: Connects GLFW-b (GLFW 3+) with the Yampa FRP library
yampa-gloss library and program: A GLOSS backend for Yampa
yampa-glut library and program: Connects Yampa and GLUT
yarr library: Yet another array library
yarr-image-io library: Image IO for Yarr library
yeamer library, programs and test: Yesod-based server for interactive presentation slides
yesod-media-simple library: Simple display of media types, served by yesod
yjsvg library: make SVG string from Haskell data
yoga library, program and test: Bindings to Facebook's Yoga layout library
zsh-battery program: Ascii bars representing battery status

GraphQL

airgql library, program and test: Automatically generate a GraphQL API for an SQLite database
double-x-encoding library and test: Encoding scheme to encode any Unicode string with only [0-9a-zA-Z_]
graphql-client library, program and test: A client for Haskell programs to query a GraphQL API
graphql-utils library: GraphQL Utils
morpheus-graphql library and test: Morpheus GraphQL
morpheus-graphql-app library and test: Morpheus GraphQL App
morpheus-graphql-cli program and test: Morpheus GraphQL CLI
morpheus-graphql-client library and test: Morpheus GraphQL Client
morpheus-graphql-code-gen library and program: Morpheus GraphQL CLI
morpheus-graphql-code-gen-utils library: Morpheus GraphQL CLI
morpheus-graphql-core library and test: Morpheus GraphQL Core
morpheus-graphql-server library and test: Morpheus GraphQL
morpheus-graphql-subscriptions library: Morpheus GraphQL Subscriptions
morpheus-graphql-tests library: Morpheus GraphQL Test

Graphs

algebraic-edge-graphs library, test and benchmark: A library for algebraic edge-graph construction and transformation
algebraic-graph-duoids library and tests: Duoid instances for the algebraic-graphs package
algebraic-graphs library and test: A library for algebraic graph construction and transformation
algebraic-graphs-io library and test: I/O utilities and datasets for algebraic-graphs
algraph library and test: Graph library using adjacency list representation
conic-graphs library: Vinyl-style extensible graphs.
dataflow library, program and test: Generate Graphviz documents from a Haskell representation.
deptrack-core library: DepTrack Core types and model.
deptrack-dot library and test: Facilitate Graphviz representations of DepTrack dependencies.
dom-lt library, test and benchmark: The Lengauer-Tarjan graph dominators algorithm.
dot library and program: Datatypes and encoding for graphviz dot files
edges library and test: Tools for efficient immutable graphs
fcf-graphs library and test: Type-level version of algebraic-graphs.
fgl library, test and benchmark: Martin Erwig's Functional Graph Library
fgl-arbitrary library and test: QuickCheck support for fgl
fgl-extras-decompositions library: Graph decomposition algorithms
fgl-visualize library: Convert FGL graphs to dot (graphviz) files
grakn library and tests: A Haskell client for Grakn
graph-generators library, program and test: Functions for generating structured or random FGL graphs
graph-matchings library: An implementation of algorithms for matchings in graphs
graph-rewriting library: Monadic graph rewriting of hypergraphs with ports and multiedges
graph-rewriting-cl program: Interactive graph rewriting system implementing various well-known combinators
graph-rewriting-gl library: OpenGL interface for interactive port graph rewriting
graph-rewriting-layout library: Force-directed node placement intended for incremental graph drawing
graph-rewriting-strategies library: Evaluation strategies for port-graph rewriting systems
graph-utils library: A simple wrapper & quasi quoter for fgl.
graph-wrapper library and test: A wrapper around the standard Data.Graph with a less awkward interface
Graphalyze library: Graph-Theoretic Analysis library.
graphite library, test and benchmark: Graphs and networks library
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
graphs library: A simple monadic graph library
graphviz library, program, test and benchmark: Bindings to Graphviz for graph visualisation.
graql library and test: Execute Graql queries on a Grakn graph
haggle library, test and benchmark: A graph library offering mutable, immutable, and inductive graphs
hit-graph library: Use graph algorithms to access and manipulate Git repos
igraph library: Bindings to the igraph C library.
intmap-graph library: A graph library that allows to explore edges after their type
layered-graph-drawing library and program: Layered Graph Drawing after Sugiyama
maxsharing program: Maximal sharing of terms in the lambda calculus with letrec
metamorphic library: metamorphisms: ana . cata or understanding folds and unfolds
nix-graph library and program: Reify the Nix build graph into a Haskell graph data structure
OGDF library: Haskell binding to OGDF
pangraph library and test: A set of parsers for graph languages and conversions to graph libaries.
planar-graph library: A representation of planar graphs
random-cycle library, test and benchmark: Uniform draws of partitions and cycle-partitions, with thinning.
stacked-dag library, program and test: Ascii DAG(Directed acyclic graph) for visualization of dataflow
unordered-graphs library: Graph library using unordered-containers
xdot library and program: Parse Graphviz xdot files and interactively view them using GTK and Cairo

Greengrass

stratosphere-greengrass library: Stratosphere integration for AWS Greengrass.

GreengrassV2

stratosphere-greengrassv2 library: Stratosphere integration for AWS GreengrassV2.

Groundhog

groundhog-converters library and test: Extended Converter Library for groundhog embedded types

GroundStation

stratosphere-groundstation library: Stratosphere integration for AWS GroundStation.

Groups

group-theory library: The theory of groups
MultipletCombiner library and test: A Haskell implementation for combining SU(n) multiplets

GRPC

grpc-api-etcd library: Generated messages and instances for etcd gRPC.
utxorpc library: Generated code for a gRPC interface for UTxO Blockchains

GuardDuty

stratosphere-guardduty library: Stratosphere integration for AWS GuardDuty.

GUI

alsa-gui programs: Some simple interactive programs for sending MIDI control messages via ALSA
AutoForms library: GUI library based upon generic programming (SYB3)
barrie library: Declarative Gtk GUI library
binding-core library and test: Data Binding
binding-gtk library and tests: Data Binding in Gtk2Hs
binding-wx library and tests: Data Binding in WxHaskell
clutterhs library: Bindings to the Clutter animation library
DataTreeView library: A GTK widget for displaying arbitrary Data.Data.Data instances
desktop-portal library and test: Desktop Portal.
fltkhs library and programs: FLTK bindings
fltkhs-themes library: A set of themed widgets that provides drop in replacements to the ones in FLTKHS.
fudgets library and programs: The Fudgets Library
FULE library and test: Functional UI Layout Engine
gladexml-accessor library: Automagically declares getters for widget handles in specified interface file.
glazier library and test: Extensible effects using ContT, State and variants.
glazier-react library: ReactJS binding using Glazier.Command.
glazier-react-examples program: Examples of using glazier-react
glazier-react-widget library: Generic widget library using glazier-react
grapefruit-examples library: Examples using the Grapefruit library
grapefruit-ui library: Declarative user interface programming
grapefruit-ui-gtk library: GTK+-based backend for declarative user interface programming
gtk-toy library: Convenient Gtk canvas with mouse and keyboard input.
gtk2hs-cast-glade library: A type class for cast functions of Gtk2hs: glade package
gtk2hs-cast-glib library: A type class for cast functions of Gtk2hs: glib package
gtk2hs-cast-gnomevfs library: A type class for cast functions of Gtk2hs: gnomevfs package
gtk2hs-cast-gtk library: A type class for cast functions of Gtk2hs: gtk package
gtk2hs-cast-gtkglext library: A type class for cast functions of Gtk2hs: gtkglext package
gtk2hs-cast-gtksourceview2 library: A type class for cast functions of Gtk2hs: gtksourceview2 package
gtk2hs-cast-th library: A type class for cast functions of Gtk2hs: TH package
gtk2hs-rpn library: Adds a module to gtk2hs allowing layouts to be defined using reverse polish notation.
Gtk2hsGenerics library: Convenience functions to extend Gtk2hs.
happindicator3 library and program: Binding to the appindicator library.
happlets library: "Haskell Applets" provides an event handler and a canvas for building simple GUI apps.
happlets-lib-gtk library and test: The "Haskell Applets" Gtk+ ver. 2 back-end for "happlets".
HGamer3D-CEGUI-Binding library: A Toolset for the Haskell Game Programmer - CEGUI Bindings
himerge program: Haskell Graphical User Interface for Emerge
hois library and program: OIS bindings
hscharm library and programs: minimal ncurses-like library
hsqml library and test: Haskell binding for Qt Quick
hsqml-demo-samples programs: HsQML sample programs
lgtk library and program: Lens GUI Toolkit
live-sequencer library and programs: Live coding of MIDI music
load-font library and program: A cross platform library for loading bundled fonts into your application
ltk library: Leksah tool kit
midimory programs: A Memory-like (Concentration, Pairs, ...) game for tones
monomer library, programs and test: A GUI library for writing native Haskell applications.
monomer-flatpak-example program: Monomer Flatpak Example Application.
monomer-hagrid library, programs and test: A datagrid widget for the Monomer library.
myxine-client library and test: A Haskell client for the Myxine GUI server
pianola library and test: Remotely controlling Java Swing applications
place-cursor-at program: A utility for X11 that moves the mouse cursor using the keyboard
reactive-banana-threepenny library and programs: Examples for the reactive-banana library, using threepenny-gui.
reactive-banana-wx library and programs: Examples for the reactive-banana library, using wxHaskell.
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-ionic library: Compatible highlevel Wigdets for some Ionic Input Components
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-dom-th library and test: reflex-dom-th transpiles HTML templates to haskell code for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-jsx library: Use jsx-like syntax in Reflex
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
sindre library and program: A programming language for simple GUIs
slim library and test: Functional reactive user interface programming
sneathlane-haste library: A compositional web UI library, which draws to a Canvas element
SybWidget library: Library which aids constructing generic (SYB3-based) widgets
threepenny-gui library and programs: GUI framework that uses the web browser as a display.
tinyfiledialogs library: Wrapper around the 'tiny file dialogs' C library
treersec library: Structure Editing Combinators
typed-gui library and test: GUI framework based on typed-fsm
typed-spreadsheet library and programs: Typed and composable spreadsheets
UISF library: Library for Arrowized Graphical User Interfaces.
uni-graphs library: Graphs
uni-htk library: Graphical User Interface for Haskell Programs
uni-uDrawGraph library: Graphs binding
wx library: wxHaskell
wxc library: wxHaskell C++ wrapper
wxcore library: wxHaskell core
WXDiffCtrl library: WXDiffCtrl
wxdirect library and program: helper tool for building wxHaskell
wxFruit library and program: An implementation of Fruit using wxHaskell.
WxGeneric library: Generic (SYB3) construction of wxHaskell widgets
xtc library: eXtended & Typed Controls for wxHaskell.

Hakyll

hakyll-contrib-i18n library and program: A Hakyll library for internationalization.
hakyll-contrib-links library and test: A hakyll library that helps maintain a separate links database.
hakyll-shortcut-links library and test: Use shortcut-links in markdown file for Hakyll

HAM

si-clock library: An interface to the Silicon Labs Si5351 clock chip
wsjtx-udp library and programs: WSJT-X UDP protocol

Happstack

fay-hsx library: Clientside HTML generation for fay.
happstack-clientsession library: client-side session data
happstack-fay library: Support for using Fay with Happstack
happstack-fay-ajax library: Support for using Fay with Happstack
happstack-foundation library: Glue code for using Happstack with acid-state, web-routes, reform, and HSP
happstack-hamlet library: Support for Hamlet HTML templates in Happstack
happstack-heist library: Support for using Heist templates in Happstack
happstack-hsp library: Support for using HSP templates in Happstack
happstack-hstringtemplate library: Support for using HStringTemplate in Happstack
happstack-jmacro library: Support for using JMacro with Happstack
happstack-lite library: Happstack minus the useless stuff
happstack-monad-peel library: monad-peel instances for Happstack types
happstack-plugins library: The haskell application server stack + reload
happstack-server test: Web related tools and services.
happstack-server-tls library: extend happstack-server with https:// support (TLS/SSL)
happstack-server-tls-cryptonite library: Extend happstack-server with native HTTPS support (TLS/SSL)
happstack-yui library: Utilities for using YUI3 with Happstack.

Hardware

blink1 library and program: Control library for blink(1) LED from ThingM
buttplug-hs-core library, program and test: Client library for buttplug.io
chalmers-lava2000 library: Hardware description EDSL
circuit-notation library and test: Source plugin for manipulating circuits in Clash using arrow notation
circus library: Types and a small DSL for working with netlistsvg
clash library: CAES Language for Synchronous Hardware (CLaSH)
clash-finite library and test: A class for types with only finitely many inhabitants
clash-ghc library and programs: Clash: a functional hardware description language - GHC frontend
clash-lib library, programs and tests: Clash: a functional hardware description language - As a library
clash-lib-hedgehog library: Hedgehog Generators for clash-lib
clash-multisignal library
clash-prelude library, tests and benchmark: Clash: a functional hardware description language - Prelude library
clash-prelude-hedgehog library: Hedgehog Generators for clash-prelude
clash-prelude-quickcheck library: QuickCheck instances for various types in the CλaSH Prelude
clash-protocols library and tests: a battery-included library for (dataflow) protocols
clash-protocols-base library: Internal support package for clash-protocols; use clash-protocols instead.
clash-shake library: Shake rules for building Clash programs
clash-shockwaves library and tests: Typed waveforms for Clash using the Surfer waveform viewer
clash-systemverilog library: CAES Language for Synchronous Hardware - SystemVerilog backend
clash-verilog library: CAES Language for Synchronous Hardware - Verilog backend
clash-vhdl library: CAES Language for Synchronous Hardware - VHDL backend
clashilator library and program: Automated Clash to Verilator bridge
crystalfontz library: Control Crystalfontz LCD displays.
ForSyDe library: ForSyDe's Haskell-embedded Domain Specific Language.
forsyde-deep library and test: ForSyDe's Haskell-embedded Domain Specific Language.
ftdi library and test: A thin layer over USB to communicate with FTDI chips
fuyu-gpio library and programs: High-level, type-safe interface for Linux GPIO (libgpiod v2).
fuyu-gpio-direct library: Direct Haskell bindings for Linux libgpiod v2
fxpak library: Interface to the FXPak/FXPak Pro USB interface
gpio library and program: Haskell GPIO interface, designed specifically for the RaspberryPi.
hArduino library: Control your Arduino board from Haskell.
HHDL library: Hardware Description Language embedded in Haskell.
hidapi library: Haskell bindings to HIDAPI
hleap library and program: Web Socket interface to Leap Motion controller
hs-tango library and benchmarks: Bindings to the Tango Controls system
hsI2C library: I2C access for Haskell and Linux
hsverilog library and test: Synthesizable Verilog DSL supporting for multiple clock and reset
HueAPI library: API for controlling Philips Hue lights
hydra-hs library and test: Haskell binding to the Sixense SDK for the Razer Hydra
ice40-prim library: Lattice iCE40 Primitive IP
kafka-device library and programs: UI device events via a Kafka message broker
kafka-device-glut library and program: GLUT events via a Kafka message broker
kafka-device-joystick library and program: Linux joystick events via a Kafka message broker
kafka-device-leap library and program: Leap Motion events via a Kafka message broker
kafka-device-spacenav library and program: Linux SpaceNavigator events via a Kafka message broker
kansas-lava library and programs: Kansas Lava is a hardware simulator and VHDL generator.
kansas-lava-cores library and programs: FPGA Cores Written in Kansas Lava.
kansas-lava-papilio library: Kansas Lava support files for the Papilio FPGA board
lambda-bridge library and program: A bridge from Haskell (on a CPU) to VHDL on a FPGA.
lion library: RISC-V Core
mercury-api library, programs and tests: Haskell binding to Mercury API for ThingMagic RFID readers
obd library, programs and test: Communicate to OBD interfaces over ELM327
parport library: Simply interfacing the parallel port on linux
pi-lcd library and programs: Control an Adafruit character LCD and keypad kit on a Raspberry Pi
powermate library and programs: bindings for Griffin PowerMate USB
processor-creative-kit library: a creation kit for instruction sets and cpu simulators and development tools
retroclash-lib library: Code shared across the code samples in the book "Retrocomputing with Clash"
retroclash-sim library: High-level simulators from the book "Retrocomputing with Clash"
serialport library, program and test: Cross platform serial port library.
si-clock library: An interface to the Silicon Labs Si5351 clock chip
sport library, program and test: UNIX serial port
STLinkUSB library: STLink USB interface in Haskell
STM32-Zombie library: control a STM32F103 microcontroller
STM32F103xx-SVD library: Definition for Peripherals,Registers and Fields from STM32F103xx.svd
streamdeck library: Control library for the Elgato Stream Deck
sump library: A Haskell interface to SUMP-compatible logic analyzers
sv2v program: SystemVerilog to Verilog conversion
SVD2HS library: translate a SVD of a Microcontroller to Haskell tables
usb library: Communicate with USB devices
usb-iteratee library: Iteratee enumerators for the usb package
vcd library: Reading and writing VCD files.
verilog library: Verilog preprocessor, parser, and AST.
verismith library, program, test and benchmark: Random verilog generation and simulator testing.
Wired library: Wire-aware hardware description
wiringPi library and programs: Access GPIO pins on Raspberry Pi via wiringPi library
xilinx-lava library and programs: The Lava system for Xilinx FPGA design with layout combinators.
york-lava library: A library for digital circuit description.

Hash

adler32 library and test: An implementation of Adler-32, supporting rolling checksum operation
hash library and test: Hashing tools
hash-addressed library: Hash-addressed file storage
hash-addressed-cli library and program: Hash-addressed file storage app
hash-store library: Hash as cache
hashable-extras library and test: Higher-rank Hashable
hasherize library and program: Hash digests for files and directories
mfmts library: Implements multiformats specification
monad-hash library and test: Monad transformer for incremental hashing
murmur3 library and test: Pure Haskell implementation of the MurmurHash3 x86 algorithm

Haskell

ban-instance library and test: For when a type should never be an instance of a class
c-storable library: CStorable class
calligraphy library, program and test: HIE-based Haskell call graph and source code visualizer
code-conjure library and tests: synthesize Haskell functions out of partial definitions
extensions library, program and test: Parse Haskell Language Extensions
fast-tags library, program and test: Fast incremental vi and emacs tags.
fix-imports program and test: Program to manage the imports of a haskell module
haskell-docs-cli library, program and test: Search Hoogle and navigate Hackage from the command line.
haskell-reflect library: Reflect Haskell types.
hs2ats library, program, test and benchmark: Create ATS types from Haskell types
hyperloglogplus library and test: Approximate cardinality estimation using constant space
module-management library, program and test: Clean up module imports, split and merge modules
no-role-annots library and test: Role annotations without -XRoleAnnotations
simple-src-utils programs and tests: source code editing utilities
test-karya library and program: Testing framework.
tree-sitter-haskell library and program: Tree-sitter grammar/parser for Haskell (with GHC extensions)

Haskell Admin

haskell-admin-health library and test: Application Health Component for Haskell Admin
haskell-admin-managed-functions library and test: Managed Functions integration for Haskell Admin

Haskell2010

haskell2010 library: Compatibility with Haskell 2010
prelude-compat library: Provide Prelude and Data.List with fixed content across GHC versions
prelude2010 library: Provide Prelude with fixed content across GHC versions

Haskell2020

haskell2020 library: Haskell 2020[draft] Standard Library

Haskell98

haskell98 library: Compatibility with Haskell 98
haskell98libraries library: Compatibility with Haskell 98

Hasql

hasql library, tests and benchmark: Fast PostgreSQL driver with a flexible mapping API
hasql-class library and test: Encodable and Decodable classes for hasql
hasql-cursor-query library and test: A declarative abstraction over PostgreSQL Cursor
hasql-cursor-transaction library: An abstraction for simultaneous fetching from multiple PostgreSQL cursors
hasql-interpolate library and test: QuasiQuoter that supports expression interpolation for hasql
hasql-listen-notify library: LISTEN/NOTIFY with hasql
hasql-notifications library, program and test: LISTEN/NOTIFY support for Hasql
hasql-optparse-applicative library: "optparse-applicative" parsers for "hasql"
hasql-pool library and test: Pool of connections for Hasql
hasql-postgresql-types library: Integration of "hasql" with "postgresql-types"
hasql-resource-pool library and test: A pool of connections for Hasql based on resource-pool.
hasql-streams-conduit library: Stream Hasql queries with Conduit
hasql-streams-core library: Stream Hasql queries
hasql-streams-example program: An example program that shows how to use Hasql streams with Rel8
hasql-streams-pipes library: Stream Hasql queries with Pipes
hasql-streams-streaming library: Stream Hasql queries with Streaming
hasql-streams-streamly library: Stream Hasql queries with Streamly
hasql-th library: Template Haskell utilities for Hasql
hasql-transaction library and test: Composable abstraction over retryable transactions for Hasql
hasql-transaction-io library: Perform IO actions during transactions for Hasql
json-pointer-hasql library and test: JSON Pointer extensions for Hasql
optima-for-hasql library: Command-line arguments parsing for Hasql

HATEOAS

servant-hateoas library and test: HATEOAS extension for servant

Health

boots-app library and program: Factory for quickly building an application
quarantimer program: Coronavirus quarantine timer web app for your things

Healthcare

claims-x12-dsl library, program and test: Type-safe DSL for healthcare claims validation and X12 processing

HealthImaging

stratosphere-healthimaging library: Stratosphere integration for AWS HealthImaging.

HealthLake

stratosphere-healthlake library: Stratosphere integration for AWS HealthLake.

Help

CheatSheet program: A Haskell cheat sheet in PDF and literate formats.
hscurses-fish-ex program: hscurses swimming fish example

Heuristics

banwords library and test: Generalized word blacklister
Binpack library: Common bin-packing heuristics.

Hie

implicit-hie library, program and test: Auto generate hie-bios cradles & hie.yaml
implicit-hie-cradle library and test: Auto generate hie-bios cradles

HKD

aeson-default library and test: Apply default value to FromJSON instacnes' Maybe fields
harg library and tests: Haskell program configuration using higher kinded data
hkd-default library and test: Apply default value for optional field of HKD

HLS

implicit-hie library, program and test: Auto generate hie-bios cradles & hie.yaml
implicit-hie-cradle library and test: Auto generate hie-bios cradles

HNum

HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.

Hspec

hspec-tmp-proc library: Simplify use of tmp-proc from hspec tests
keyed-vals-hspec-tests library: Validate a keyed-vals Handle

HTML

css-class-bindings library and test: generates Haskell bindings for CSS classes
flamethrower library: A template engine for HTML
haquery library: jQuery for Haskell.
html-entities library: A codec library for HTML-escaped text and HTML-entities
html-entity-map library and benchmark: Map from HTML5 entity names to the corresponding Unicode text
html-rules library: Perform traversals of HTML structures using sets of rules.
html-tokenizer library and test: An "attoparsec"-based HTML tokenizer
htmx library: Use htmx with various haskell libraries
htmx-lucid library: Use htmx with lucid
htmx-servant library: Use htmx with servant
hxt-css library and program: CSS selectors for HXT
ihp-hsx library and test: JSX-like but for Haskell
islink library: Check if an HTML element is a link
list-t-html-parser library and test: Streaming HTML parser
lucid-alpine library, program and test: Use Alpine.js in your lucid templates
lucid-htmx library and test: Use htmx in your lucid templates
lucid2-htmx library and test: Use htmx in your lucid templates
miso-css library and test: wrapper over miso checking CSS classes applicability through dependent types
pretty-html library and test: Produce nice human-readable HTML
readability library and program: Extracts text of main article from HTML document
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-ionic library: Compatible highlevel Wigdets for some Ionic Input Components
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-dom-th library and test: reflex-dom-th transpiles HTML templates to haskell code for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
type-of-html library, tests and benchmarks: High performance type driven html generation.
type-of-html-static library and test: Optimize static parts of type-of-html.
xmlbf-xmlhtml library and test: xmlhtml backend support for the xmlbf library.

HTTP

freckle-http library and test: Toolkit for making HTTP requests
freer-simple-http library and test: Make HTTP requests with freer-simple!
github-app-token library and tests: Generate an installation access token for a GitHub App
hs-opentelemetry-instrumentation-http-client library and test: OpenTelemetry instrumentation for http-client
list-t-http-client library: A streaming HTTP client
list-t-libcurl library: A "libcurl"-based streaming HTTP client
managed-functions-http-connector library: Simple HTTP-Based Connector for Managed Functions
matcha library, program and test: A micro web framework based on pattern matching
quiver-http library: Adapter to stream over HTTP(s) with quiver
sockets-and-pipes library: Support for the Sockets and Pipes book
wai-cors library and tests: CORS for WAI

Hxt

quickcheck-relaxng library: Generate RelaxNG-constrained XML documents for QuickCheck

Hydraulics

epanet-haskell library: Haskell binding for EPANET

Hydrology

SWMMoutGetMB library: A parser for SWMM 5 binary .OUT files

Hypermedia

datastar-hs library, program and test: Haskell bindings for Datastar
datastar-hs-brotli library and test: Brotli compressor for datastar-hs
datastar-hs-zlib library and test: gzip and deflate compressors for datastar-hs

I18n

gettext-th library: gettext-th can internationalise a haskell program without runtime dependencies
hakyll-contrib-i18n library and program: A Hakyll library for internationalization.

I2C

hsI2C library: I2C access for Haskell and Linux
si-clock library: An interface to the Silicon Labs Si5351 clock chip

IAM

stratosphere-iam library: Stratosphere integration for AWS IAM.

IDE

display-haskell-do library: A display API for HaskellDO
fix-imports program and test: Program to manage the imports of a haskell module
hob library, program and test: A source code editor aiming for the convenience of use
hpage program: A scrapbook for Haskell developers
inferno-lsp library and program: LSP for Inferno
leksah library and program: Haskell IDE written in Haskell
leksah-server library, programs and test: Metadata collection for leksah
manatee library and program: The Haskell/Gtk+ Integrated Live Environment
manatee-all library and program: Virtual package to install all Manatee packages.
manatee-anything library and program: Multithread interactive input/search framework for Manatee
manatee-core library: The core of Manatee.
manatee-editor library and program: Editor extension for Manatee.
manatee-template library and program: Template code to create Manatee application.
manatee-welcome library and program: Welcome module to help user play Manatee quickly.
mcp-hoogle library, program and test: MCP server exposing Hoogle search over local project dependencies
module-management library, program and test: Clean up module imports, split and merge modules
spade library, program and test: A simple programming and debugging environment.
wxhnotepad program: An example of how to implement a basic notepad with wxHaskell

Identification

roc-id library and tests: Implementation of the ROC (Taiwan) Uniform ID Number format.
taiwan-id library, program and tests: Library and CLI for working with ID numbers issued in Taiwan.

IdentityStore

stratosphere-identitystore library: Stratosphere integration for AWS IdentityStore.

IDL

domain library and tests: Codegen helping you define domain models
domain-core library: Low-level API of "domain"

IHP

ihp library, test and benchmark: Haskell Web Framework
ihp-context library: Minimal typed context container for IHP
ihp-datasync library and test: IHP DataSync Framework
ihp-graphql library and test: GraphQL support for IHP
ihp-ide library, programs and test: Dev tools for IHP
ihp-job-dashboard library: Dashboard for IHP job runners
ihp-log library: Lightweight logging for IHP applications
ihp-mail library: Email support for IHP
ihp-modal library: Modal dialog support for IHP applications
ihp-pagehead library: Page title and meta tags for IHP
ihp-pglistener library and test: PostgreSQL LISTEN/NOTIFY channel manager for IHP
ihp-schema-compiler library and program: Lightweight schema compiler for IHP
ihp-ssc library: Server Side Components for IHP
ihp-typed-sql library and test: Compile-time typed SQL quasiquoter for IHP
ihp-zip library: Support for making ZIP archives with IHP

Image

avif library and test: High-level bindings to libavif
flac-picture library and test: Support for writing pictures into FLAC metadata blocks with JuicyPixels
flatcv library and test: Haskell bindings for FlatCV image processing library
identicon library, test and benchmark: Flexible generation of identicons
jpeg-turbo library and test: FFI bindings to libjpeg-turbo
JuicyPixels library: Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance)
JuicyPixels-blp library and program: BLP format decoder/encoder over JuicyPixels library
JuicyPixels-blurhash library, program and tests: Blurhash is a very compact represenation of a placeholder for an image
JuicyPixels-extra library, test and benchmark: Efficiently scale, crop, flip images with JuicyPixels
JuicyPixels-jpeg-turbo library and test: JuicyPixels wrappers for libjpeg-turbo
JuicyPixels-scale-dct library and test: Scale JuicyPixels images with DCT
JuicyPixels-stbir library: Scale JuicyPixels images with stb_image_resize
latex-formulae-hakyll library: Use actual LaTeX to render formulae inside Hakyll pages
latex-formulae-image library: A library for rendering LaTeX formulae as images using an actual LaTeX installation
latex-formulae-pandoc library and program: Render LaTeX formulae in pandoc documents to images with an actual LaTeX installation
latex-svg-hakyll library: Use actual LaTeX to render formulae inside Hakyll pages
latex-svg-image library: A library for rendering LaTeX formulae as SVG using an actual LaTeX
latex-svg-pandoc library and program: Render LaTeX formulae in pandoc documents to images with an actual LaTeX
manatee-imageviewer library and program: Image viewer extension for Manatee.
megastore library: Bulk image or strict bytestring storage
number-wall library, test and benchmark: Create number walls and save them as images
picedit library and program: simple image manipulation functions
pixel-printer library, program and test: A program for turning pixel art into 3D prints
pixelated-avatar-generator library, program and test: A library and application for generating pixelated avatars.
png-chunk-yaftee library and test: PNG's chunk codec on Yaftee
qr-imager library and test: Library to generate images.
sdl2-image library and program: Haskell bindings to SDL2_image
streaming-png library and program: Perfectly streaming PNG image decoding
webp library and test: JuicyPixels support for WebP format
zbar library: zbar bindings in Haskell

Image Processing

hip library, test and benchmarks: Haskell Image Processing (HIP) Library.
unm-hip library: A Library for the manipulation of images

Image Viewer

haskell-pdf-presenter program: Tool for presenting PDF-based presentations.
manatee-imageviewer library and program: Image viewer extension for Manatee.
pvd programs: A photo viewer daemon application with remote controlling abilities.

ImageBuilder

stratosphere-imagebuilder library: Stratosphere integration for AWS ImageBuilder.

Images

perceptual-hash library, program, test and benchmark: Find duplicate images

In-other-words

readline-in-other-words library and program: Readline effect for in-other-words.

Indexed

index-core library: Indexed Types

Infrastructure

kerry library and test: Manage and abstract your packer configurations.

Inspection

rewrite-inspector library and programs: Inspection of rewriting steps

Inspector

stratosphere-inspector library: Stratosphere integration for AWS Inspector.

InspectorV2

stratosphere-inspectorv2 library: Stratosphere integration for AWS InspectorV2.

Instances

wide-word-instances library: Instances for wide-word

Integration

pcubature library and test: Integration over convex polytopes
scubature library: Multidimensional integration over simplices

Interaction

dialog library: Simple dialog-based user interfaces
midair library: Hot-swappable FRP

Interactive

interactive-plot library and program: Interactive quick time series plotting

Interfaces

fresco-binding library: Fresco binding for Haskell
GuiTV library: GUIs for Tangible Values
haskelzinc library: CP in Haskell through MiniZinc
hslogger library and test: Versatile logging framework
hslogger-reader library and programs: Parsing hslogger-produced logs.
hslogger-template library: Automatic generation of hslogger functions
hslogger4j library: DEPRECATED hslogger handlers for log4j's XMLLayout
TV library: Tangible Values -- composable interfaces
wled-json library, programs and test: Convenient interface for interacting with WLED devices

InternetMonitor

stratosphere-internetmonitor library: Stratosphere integration for AWS InternetMonitor.

Interpolation

custom-interpolation library and tests: Customizable string interpolation quasiquoters
interp library, program and test: Tracery-like randomized text interpolation
nyan-interpolation library and test: Flexible production-scale string interpolation library
nyan-interpolation-core library and test: Customize your nyan interpolator!
nyan-interpolation-simple library: Simplified lightweight interpolation

Interpreter

caledon program: a logic programming language based on the calculus of constructions
spade library, program and test: A simple programming and debugging environment.

Interpreters

bound-extras library and test: ScopeH and ScopeT extras for bound
j library and test: J in Haskell
jacinda library, program, test and benchmark: Functional, expression-oriented data processing language

Interval

RoundingFiasco library and test: rounding variants floor, ceil and truncate for floating point operations +-*/√…

Invoicing

stratosphere-invoicing library: Stratosphere integration for AWS Invoicing.

IO

binary-io library and test: Read and write values of types that implement Binary
conduit-vfs library and test: Virtual file system for Conduit; disk, pure, and in-memory impls.
conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
control-dsl library and test: An alternative to monads in do-notation
dialogue library and program: I/O in Haskell Report 1.2
do-notation-dsl library and test: An alternative to monads
eio library and program: IO with Exceptions tracked on the type-level
Files library, program and test: File content extraction/rearrangement
pathological-bytestrings library: Pathological ByteStrings for testing
safeio library and test: Write output to disk atomically
with-utf8 library, program and test: Get your IO right on the first try

IO-Streams

binary-streams library and test: data serialization/deserialization io-streams library
brotli-streams library and test: IO-Streams interface for Brotli (RFC7932) compression
cassava-streams library, program and test: io-streams interface for the cassava CSV library.
cereal-io-streams library, test and benchmark: io-streams support for the cereal binary serialization library
cereal-streams library, test and benchmark: Use cereal to encode/decode io-streams.
heartbeat-streams library: Heartbeats for io-streams
http-client-streams library: http-client for io-streams supporting openssl
http-io-streams library and test: HTTP and WebSocket client based on io-streams
http-streams library and test: An HTTP client using io-streams
io-streams library and test: Simple, composable, and easy-to-use stream I/O
io-streams-haproxy library and test: HAProxy protocol 1.5 support for io-streams
io-streams-http library: http-client for io-streams
lzma-streams library and test: IO-Streams interface for lzma/xz compression
openssl-streams library and test: OpenSSL network support for io-streams.
seqid-streams library: Sequence ID IO-Streams
sha-streams library and program: SHA hashes for io-streams.
snap-core library and test: Snap: A Haskell Web Framework (core interfaces and types)
snap-server library, programs, test and benchmark: A web server for the Snap Framework
unagi-streams library: Unagi Chan IO-Streams
unliftio-streams library: Generalization of io-streams to MonadUnliftIO
wire-streams library, test and benchmark: Fast binary io-streams adapter.

IoC

boots library and test: IoC Monad in Haskell

IoT

mqtt library, tests and benchmarks: An MQTT protocol implementation.
stratosphere-iot library: Stratosphere integration for AWS IoT.

IoTAnalytics

stratosphere-iotanalytics library: Stratosphere integration for AWS IoTAnalytics.

IoTCoreDeviceAdvisor

stratosphere-iotcoredeviceadvisor library: Stratosphere integration for AWS IoTCoreDeviceAdvisor.

IoTEvents

stratosphere-iotevents library: Stratosphere integration for AWS IoTEvents.

IoTFleetHub

stratosphere-iotfleethub library: Stratosphere integration for AWS IoTFleetHub.

IoTFleetWise

stratosphere-iotfleetwise library: Stratosphere integration for AWS IoTFleetWise.

IoTSiteWise

stratosphere-iotsitewise library: Stratosphere integration for AWS IoTSiteWise.

IoTThingsGraph

stratosphere-iotthingsgraph library: Stratosphere integration for AWS IoTThingsGraph.

IoTTwinMaker

stratosphere-iottwinmaker library: Stratosphere integration for AWS IoTTwinMaker.

IoTWireless

stratosphere-iotwireless library: Stratosphere integration for AWS IoTWireless.

IRC

clogparse library: Parse IRC logs such as the #haskell logs on tunes.org
funbot program: IRC bot for fun, learning, creativity and collaboration.
irc-bytestring library: serialization and parsing of IRC messages
irc-colors library: Colourize your IRC strings
irc-fun-bot library: Library for writing fun IRC bots.
irc-fun-client library: Another library for writing IRC clients.
irc-fun-messages library: Types and functions for working with the IRC protocol.
irc-fun-types library: Common types for IRC related packages
manatee-ircclient library and programs: IRC client extension for Manatee.
rss2irc program: watches an RSS/Atom feed and writes it to an IRC channel
simpleirc library and test: Simple IRC Library
y0l0bot program: #plaimi's all-encompassing bot

IRC Client

manatee-ircclient library and programs: IRC client extension for Manatee.
xchat-plugin library and program: XChat

IRI

iri library and test: RFC-compliant universal resource identifier library (URL, URI, IRI)

Iteratee

ChannelT library: Generalized stream processors

IVS

stratosphere-ivs library: Stratosphere integration for AWS IVS.

IVSChat

stratosphere-ivschat library: Stratosphere integration for AWS IVSChat.

J

j library and test: J in Haskell

Japanese Natural Language Processing

sentence-jp library: Easily generating message of japanese natural language

Java

haven program: Recursively retrieve maven dependencies
inline-java library, test and benchmark: Java interop via inline Java code in Haskell modules.
j2hs program: j2hs
jarify library and program: Jarification of Haskell sources
java-adt program: Create immutable algebraic data structures for Java.
java-bridge programs: Bindings to the JNI and a high level interface generator.
java-bridge-extras library: Utilities for working with the java-bridge package.
java-reflect library: Tools for reflecting on Java classes.
jni library and test: Complete JNI raw bindings.
jvm library, test and benchmark: Call JVM methods from Haskell.
jvm-batching library, test and benchmark: Provides batched marshalling of values between Java and Haskell.
jvm-binary library, test and benchmark: A library for reading Java class-files
jvm-streaming library, test and benchmark: Expose Java iterators as streams from the streaming package.
sparkle library and program: Distributed Apache Spark applications in Haskell
tree-sitter-java library: Tree-sitter grammar/parser for Java

JavaScript

fwgl library: Game engine
fwgl-javascript library: FWGL GHCJS backend
haste-compiler programs: Haskell To ECMAScript compiler
js-chart library and test: Obtain minified chart.js code
js-dgtable library and test: Obtain minified jquery.dgtable code
js-flot library and test: Obtain minified flot code
js-good-parts library: Javascript: The Good Parts -- AST & Pretty Printer
js-jquery library and test: Obtain minified jQuery code
jsaddle library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-clib library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-warp library and tests: Interface for JavaScript that works with GHCJS and GHC
jsaddle-wasm library: Run JSaddle JSM with the GHC Wasm backend
jsaddle-webkit2gtk library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-webkitgtk library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-wkwebview : Interface for JavaScript that works with GHCJS and GHC
jsc library and test: High level interface for webkit-javascriptcore
lucid-xstatic library: Lucid helper for XStatic
lucid2-xstatic library: Lucid2 helper for XStatic
mquickjs-hs library and test: Wrapper for the Micro QuickJS JavaScript Engine
quickjs-hs library and test: Wrapper for the QuickJS Javascript Engine
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-ionic library: Compatible highlevel Wigdets for some Ionic Input Components
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-dom-th library and test: reflex-dom-th transpiles HTML templates to haskell code for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
servant-xstatic library: XStatic adapter for servant
shine library: Declarative graphics for the browser using GHCJS
shine-examples programs: Examples for the shine package
shine-varying library and tests: FRP interface for shine using the varying package
sunroof-compiler library: Monadic Javascript Compiler
sunroof-examples programs: Tests for Sunroof
sunroof-server library: Monadic Javascript Compiler - Server Utilities
xstatic library: Low-Fat static file packaging for Haskell projects
xstatic-th library and test: Automatic generation of XStaticFile

JSON

aeson library and test: Fast JSON parsing and encoding
aeson-better-errors library: Better error messages when decoding JSON values.
aeson-combinators library, tests and benchmark: Aeson combinators for dead simple JSON decoding
aeson-commit library and test: Parse Aeson data with commitment
aeson-decode library and test: Easy functions for converting from Aeson.Value
aeson-default library and test: Apply default value to FromJSON instacnes' Maybe fields
aeson-dependent-sum library and test: JSON encoding/decoding for dependent-sum
aeson-diff library, programs and tests: Extract and apply patches to JSON documents.
aeson-diff-generic library: Apply a json-patch to any haskell datatype.
aeson-filthy library and test: Several newtypes and combinators for dealing with less-than-cleanly JSON input.
aeson-flatten library and test: JSON flatten for Aeson
aeson-gadt-th library, program and test: Derivation of Aeson instances for GADTs
aeson-generic-default library and test: Type-level default fields for aeson Generic FromJSON parser
aeson-injector library and test: Injecting fields into aeson values
aeson-jsonpath library and tests: Parse and run JSONPath queries on Aeson documents
aeson-modern-tojson library and test: Provide a handy way for derving ToJSON proprely.
aeson-native library: Fast JSON parsing and encoding (deprecated)
aeson-optics library: Law-abiding optics for aeson
aeson-options library: Options to derive FromJSON/ToJSON instances
aeson-parsec-picky library: Alternative JSON parser based on Parsec and Aeson
aeson-picker library and test: Tiny library to get fields from JSON format
aeson-possible library and test: Possible values for aeson
aeson-prefix library and test: Hiearchical prefixing for aeson
aeson-pretty library and program: JSON pretty-printing library and command-line tool.
aeson-qq library and test: JSON quasiquoter for Haskell
aeson-quick library, test and benchmark: Quick JSON extractions with Aeson
aeson-schemas library, test and benchmark: Easily consume JSON data on-demand with type-safety
aeson-single-field library and test: Conveniently wrap a single value in a record when encoding to and from JSON
aeson-toolkit library and test: A generalization of Aeson over Failure
aeson-typescript library and test: Generate TypeScript definition files from your ADTs
aeson-value-parser library: API for parsing "aeson" JSON tree into Haskell types
aeson-warning-parser library: Library providing JSON parser that warns about unexpected fields in objects.
aeson-yaml library, program and test: Output any Aeson value as YAML (pure Haskell library)
argo library, program, test and benchmark: Parse and render JSON.
blaze-json library and tests: tiny library for encoding json
bunz library, program and test: CLI tool to beautify JSON string.
canonical-json library, test and benchmark: Canonical JSON for signing and hashing JSON values
conf-json library and test: read, parse json config
cretheus library: A clean aeson wrapper
curl-aeson library: Communicate with web services using JSON
data-json-token library, program and test: Json Token datatype
dead-simple-json library: Dead simple JSON parser, with some Template Haskell sugar.
dependent-sum-aeson-orphans library: JSON instances for DSum, DMap, and Some
deriving-aeson library and test: Type driven generic aeson instance customisation
deriving-openapi3 library: DerivingVia for OpenAPI 3
derulo library, program and test: Parse and render JSON simply.
detour-via-sci library and tests: JSON and CSV encoding for rationals as decimal point numbers.
detour-via-uom library and tests: JSON and CSV encoding for quantities.
dhall-fly library, program and test: Translate concourse config from Dhall to YAML
digestive-functors-aeson library and test: Run digestive-functors forms against JSON
docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
fcm-client library, program and test: Admin API for Firebase Cloud Messaging
gitson library, tests and benchmark: A document store library for Git + JSON.
hermes-json library and test: Fast JSON decoding via simdjson C++ bindings
highjson library, test and benchmark: Spec based JSON parsing/serialisation
highjson-swagger library and test: Derive swagger instances from highjson specs
highjson-th library and test: Template Haskell helpers for highjson specs
hkd-default library and test: Apply default value for optional field of HKD
hschema-aeson library and test: Describe schemas for your Haskell data types.
HsYAML-aeson library and program: JSON to YAML Adapter
htoml library, test and benchmark: Parser for TOML files
hw-aeson library and tests: Convenience functions for Aeson
hw-json-lens library, tests and benchmark: Lens for hw-json
jose-jwt tests and benchmark: JSON Object Signing and Encryption Library
json-builder library: Data structure agnostic JSON serialization
json-bytes-builder library, test and benchmark: Direct-to-bytes JSON Builder
JSON-Combinator library: A combinator library on top of a generalised JSON type
json-encoder library: A direct-to-bytes single-pass JSON encoder with a declarative DSL
json-enumerator library: Pure-Haskell utilities for dealing with JSON with the enumerator package. (deprecated)
json-fu library and test: Generic JSON serialization / deserialization
json-incremental-decoder library and test: Incremental JSON parser with early termination and a declarative DSL
json-pointer library: JSON Pointer parsing and interpretation utilities
json-pointer-hasql library and test: JSON Pointer extensions for Hasql
json-qq library: Json Quasiquatation library for Haskell.
json-rpc-client library, programs and test: JSON-RPC 2.0 on the client side.
json-rpc-server library, program and test: JSON-RPC 2.0 on the server side.
json-spec library and tests: Type-level JSON specification
json-spec-elm library and test: Elm code generate for `json-spec`.
json-spec-elm-servant library and test: Generated elm code for servant APIs.
json-spec-openapi library and test: json-spec-openapi
json-stream library and tests: Incremental applicative JSON parser
json-tools programs: A collection of JSON tools
json-types library: Basic types for representing JSON
json2 library: Library provides support for JSON.
json2-hdbc library: Support JSON for SQL Database.
json2-types library: Defined JSON data types and function for renders JSON to string.
JsonGrammar library and test: Combinators for bidirectional JSON parsing
jsonifier library, tests and benchmark: Fast and simple JSON encoding toolkit
jsonl library: JSON Lines
jsonl-conduit library and test: Conduit interface to JSONL-encoded data
jsonlogic library and test: JsonLogic Evaluation
jsonlogic-aeson library and test: JsonLogic Aeson Support
jsonpatch library and tests: JSON Patch parsing and application
jsonpath library and test: Library to parse and execute JSONPath
jsons-to-schema library, program and test: JSON to JSON Schema
jsonschema library and test: JSON Schema derivation and validation
jsonschema-gen library and test: JSON Schema generator from Algebraic data type
lens-aeson library: Law-abiding lenses for aeson
log2json library and program: Turn log file records into JSON.
managed-functions-json library: JSON Support for the Managed Functions Framework
mcaeson library, program and test: An Aeson parsing toolkit
microaeson library and test: A tiny JSON library with light dependency footprint
one-line-aeson-text library and test: Pretty-printing short Aeson values as text
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
quick-schema library and test: Slimmed down json schema language and validator
Quickson library: Quick JSON extractions with Aeson
quickson library: Quick JSON extractions with Aeson
record-aeson library and test: Instances of "aeson" classes for the "record" types
safe-json library and test: Automatic JSON format versioning
sajson library, program and test: Fast JSON parsing powered by Chad Austin's sajson library
servant-waargonaut library and test: Servant Integration for Waargonaut JSON Package
stratux library: A library for stratux
stratux-http library: A library for using HTTP with stratux
stratux-types library: A library for reading JSON output from stratux
stratux-websockets library: A library for using websockets with stratux
tagliatelle library and test: Tagged encodings that are not spaghetti
text-json-qq library: Json Quasiquatation for Haskell.
tree-sitter-json library: Tree-sitter grammar/parser for JSON
tyro library and test: Type derived JSON parsing using Aeson
vformat-aeson library and test: Extend vformat to Aeson datatypes
waargonaut library and tests: JSON wrangling
xml-to-json-fast library and program: Fast, light converter of xml to json capable of handling huge xml files
yajl-enumerator library: Enumerator-based interface to YAJL, an event-based JSON implementation

JSON-RPC

mcp-server library, programs and test: Library for building Model Context Protocol (MCP) servers

JSON5

json5hs library: Serialising to and from JSON5

JSX

reflex-jsx library: Use jsx-like syntax in Reflex

JVM

dbjava library and program: Decompiler Bytecode Java
hs-java library: Java .class files assembler/disassembler
inline-java library, test and benchmark: Java interop via inline Java code in Haskell modules.
j2hs program: j2hs
jarify library and program: Jarification of Haskell sources
java-bridge programs: Bindings to the JNI and a high level interface generator.
java-bridge-extras library: Utilities for working with the java-bridge package.
java-reflect library: Tools for reflecting on Java classes.
jdi library and program: Implementation of Java Debug Interface
jni library and test: Complete JNI raw bindings.
jvm library, test and benchmark: Call JVM methods from Haskell.
jvm-batching library, test and benchmark: Provides batched marshalling of values between Java and Haskell.
jvm-binary library, test and benchmark: A library for reading Java class-files
jvm-streaming library, test and benchmark: Expose Java iterators as streams from the streaming package.
pianola library and test: Remotely controlling Java Swing applications
sparkle library and program: Distributed Apache Spark applications in Haskell

Kafka

hs-opentelemetry-instrumentation-hw-kafka-client library and test: OpenTelemetry instrumentation for hw-kafka-client
hw-kafka-streamly library and test: Streamly bindings for hw-kafka-client

KafkaConnect

stratosphere-kafkaconnect library: Stratosphere integration for AWS KafkaConnect.

Kendra

stratosphere-kendra library: Stratosphere integration for AWS Kendra.

KendraRanking

stratosphere-kendraranking library: Stratosphere integration for AWS KendraRanking.

Kerf

herf-time library and test: haskell time manipulation in a 'kerf like' style.

Ketchup

Ketchup library: A super small web framework for those who don't like big and fancy codebases

Keynote

yeamer library, programs and test: Yesod-based server for interactive presentation slides

Keyword Extractor

rake library: Rapid Automatic Keyword Extraction (RAKE)

Kinesis

stratosphere-kinesis library: Stratosphere integration for AWS Kinesis.

KinesisAnalytics

stratosphere-kinesisanalytics library: Stratosphere integration for AWS KinesisAnalytics.

KinesisAnalyticsV2

stratosphere-kinesisanalyticsv2 library: Stratosphere integration for AWS KinesisAnalyticsV2.

KinesisFirehose

stratosphere-kinesisfirehose library: Stratosphere integration for AWS KinesisFirehose.

KinesisVideo

stratosphere-kinesisvideo library: Stratosphere integration for AWS KinesisVideo.

KML

flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.

KMS

stratosphere-kms library: Stratosphere integration for AWS KMS.

Korean

hanspell library, program and test: Korean spell checker

LakeFormation

stratosphere-lakeformation library: Stratosphere integration for AWS LakeFormation.

Lalr

platinum-parsing library, program and test: General Framework for compiler development.

Lambda

stratosphere-lambda library: Stratosphere integration for AWS Lambda.

Lambda Cube

typerbole library and test: A typesystems library with exaggerated claims

LambdaCalculus

lambda-calculator library, program and tests: A lambda calculus interpreter
lambda-toolbox program: An application to work with the lambda calculus (for learning)

Language

abacate library and test: Parser for a language similar to Cucumber's Gherkin
abt library: Abstract binding trees for Haskell
acl2 library: Writing and calling ACL2 from Haskell.
adtrees library: Modelling, rendering and quantitative analysis on attack defense trees
aftovolio library and programs: ...
agda2hs program: Compiling Agda code to readable Haskell.
alga library, program and test: Algorithmic automation for various DAWs
algorithmic-composition-additional library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
algorithmic-composition-basic library: Helps to create experimental music from a file (or its part) and a Ukrainian text.
antimirov library and program: Define the language containment (=subtyping) relation on regulare expressions.
aop-prelude library and test: prelude for Algebra of Programming
apple library, programs, tests and benchmark: Apple array language compiler
applicative-parsec library and test: An applicative parser combinator library
applicative-quoters library: Quasiquoters for idiom brackets and an applicative do-notation
arduino-copilot library and test: Arduino programming in haskell using the Copilot stream DSL
arghwxhaskell program: An interpreter for the Argh! programming language in wxHaskell.
ariadne program and test: Go-to-definition for Haskell
array-forth library, programs and test: A simple interpreter for arrayForth, the language used on GreenArrays chips.
ASN1 library: ASN.1 support for Haskell
AspectAG library and test: First-class Attribute Grammars implemented using type-level programming.
ast-monad library and test: A library for constructing AST by using do-notation
ast-monad-json library and test: A library for writing JSON
astview program: A GTK-based abstract syntax tree viewer for custom languages and parsers
astview-utils library: Interfacing between hint and astview
aterm-utils library and program: Utility functions for working with aterms as generated by Minitermite
atom library: An EDSL for embedded hard realtime applications.
atomo program: A highly dynamic, extremely simple, very fun programming language.
ats-format program: A source-code formatter for ATS
axel library, program and test: The Axel programming language.
bash library: Bash generation library.
BASIC library: Embedded BASIC
berp library and program: An implementation of Python 3.
bidirectional-instances library and test: Make instance constraints bidirectional
bidirectionalization-combined programs: ...
bighugethesaurus library: API wrapper for Big Huge Thesaurus
BiGUL library: The Bidirectional Generic Update Language
binary-literal-qq library: Extends Haskell with binary literals.
birds-of-paradise library and test: Birds of Paradise
bitcoin-scripting library and test: Resources for working with miniscript, and script descriptors
blanks library and test: Fill-in-the-blanks - A library factoring out substitution from ASTs
blip program: Python to bytecode compiler.
BNFC-meta library: Deriving Parsers and Quasi-Quoters from BNF Grammars
bond library, program and test: Bond schema compiler and code generator
bond-haskell-compiler library, program and test: Bond code generator for Haskell
boolsimplifier library: Simplification tools for simple propositional formulas.
bound library and tests: Making de Bruijn Succ Less
bound-extras library and test: ScopeH and ScopeT extras for bound
bound-simple library and test: A lightweight implementation of 'bound'
brain-bleep program: primitive imperative language
brainfuck-tut library and program: A simple BF interpreter.
bricks library and tests: Bricks is a lazy functional language based on Nix.
bricks-internal library and test: ...
bricks-internal-test library: ...
bricks-parsec library and tests: ...
bricks-rendering library and tests: ...
bricks-syntax library and tests: ...
brittany library, program and test: Haskell source code formatter
broker-haskell library and test: Haskell bindings to Broker, Bro's messaging library.
c-dsl library: A higher level DSL on top of language-c
c0check program: Simple C0 Syntax Check
c0parser library: Simple C0 Parser
c2ats library, program and test: Translate C code into ATS
caledon program: a logic programming language based on the calculus of constructions
call-alloy library and test: A simple library to call Alloy given a specification
call-plantuml library and test: A simple library to call PlantUML given a diagram specification
calligraphy library, program and test: HIE-based Haskell call graph and source code visualizer
camfort library, program and test: CamFort - Cambridge Fortran infrastructure
caml-parser library and test: An extensible parser-combinator library for Caml-Light
cao program: CAO Compiler
cap program: Interprets and debug the cap language.
cdeps library, program, test and benchmark: Extract dependencies from C code.
cg program: Parser for categorial grammars.
chalmers-lava2000 library: Hardware description EDSL
cil library: An interface to CIL.
circ library: A Compiler IR Compiler.
clang-compilation-database library and test: JSON Compilation Database Format encoding and decoding
clang-pure library, program and tests: Pure C++ code analysis with libclang
clash library: CAES Language for Synchronous Hardware (CLaSH)
cleff library and tests: Fast and concise extensible effects
cleff-plugin library and test: Automatic disambiguation for extensible effects
clogparse library: Parse IRC logs such as the #haskell logs on tunes.org
clr-bindings library and test: Glue between clr-host and clr-typed
clr-host library and test: Hosting the Common Language Runtime
clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
clr-marshal library: Marshaling for the clr
clr-typed library and test: A strongly typed Haskell interface to the CLR type system
clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug
clua program: C to Lua data wrapper generator
cmake-syntax library and test: Parser for the CMake syntax (CMakeLists.txt and .cmake files)
cmonad library: A library for C-like programming
co-feldspar library: Hardware software co-design Feldspar
codec-beam library and test: Erlang VM byte code assembler
codo-notation library: A notation for comonads, analogous to the do-notation for monads.
coformat library, program and test: Generate clang-format config based on some existing code base
combinator-interactive library and program: SKI Combinator interpreter
compilation library: Haskell functionality for quickly assembling simple compilers.
compstrat library: Strategy combinators for compositional data types
config-schema library and test: Schema definitions for the config-value package
config-value library and test: Simple, layout-based value language similar to YAML or JSON
context-free-grammar library and test: Basic algorithms on context-free grammars
control-dsl library and test: An alternative to monads in do-notation
copilot library and programs: A stream DSL for writing embedded C programs.
copilot-bluespec library and test: A compiler for Copilot targeting FPGAs.
copilot-c99 library and test: A compiler for Copilot targeting C99.
copilot-cbmc library: Copilot interface to a C model-checker.
copilot-core library and test: An intermediate representation for Copilot.
copilot-frp-sketch library: FRP sketch programming with Copilot
copilot-interpreter library and test: Interpreter for Copilot.
copilot-language library and test: A Haskell-embedded DSL for monitoring hard real-time distributed systems.
copilot-libraries library and test: Libraries for the Copilot language.
copilot-prettyprinter library: A prettyprinter of Copilot Specifications.
copilot-sbv library: A compiler for CoPilot targeting SBV.
copilot-theorem library and test: k-induction for Copilot.
copilot-verifier library, program and test: System for verifying the correctness of generated Copilot programs
copilot-visualizer library and programs: Visualizer for Copilot.
core library: External core parser and pretty printer.
core-compiler library and program: compile your own mini functional language with Core
core-haskell program: A subset of Haskell using in UCC for teaching purpose
CoreErlang library: Manipulating Core Erlang source code
corenlp-types library and test: Types for interaction with CoreNLP
cparsing library: A simple C++ parser with preprocessor features. C++ refactorings included.
crucible library and tests: Crucible is a library for language-agnostic symbolic simulation
crucible-debug library, program and test: An interactive debugger for Crucible programs
crucible-llvm library and test: Support for translating and executing LLVM code in Crucible
crucible-symio library and test: An implementation of symbolic I/O primitives for Crucible
crucible-syntax library and test: A syntax for reading and writing Crucible control-flow graphs
crux library: Simple top-level library for Crucible Simulation
crux-llvm library, programs and test: A verification tool for C programs.
cryptol library, programs, test and benchmark: Cryptol: The Language of Cryptography
CSPM-CoreLanguage library: Definition of a CSP core-language.
CSPM-cspm library and program: cspm command line tool for analyzing CSPM specifications.
CSPM-FiringRules library: Firing rules semantic of CSPM
CSPM-Frontend library: A CSP-M parser compatible with FDR-2.91
CSPM-Interpreter library: An interpreter for CSPM
cspretty library: AST and pretty printer for CSPm
css library: Minimal monadic CSS DSL.
cube library, program and test: Cubic DSL for 3D printing
curry-base library and test: Functions for manipulating Curry programs
curry-frontend library, program and test: Compile the functional logic language Curry to several intermediate formats
dap library and test: A debug adaptor protocol library
data-reify library, programs and test: Reify a recursive data structure into an explicit graph.
data-reify-cse library: Common Sub-Expression Elimination for graphs generated by Data.Reify.
data-treify library: Reify a recursive data structure into an explicit graph.
deepl library and program: Call DeepL to translate you files
derive-gadt library and programs: Instance deriving for (a subset of) GADTs.
descript-lang library, program and test: Library, interpreter, and CLI for Descript programming language.
desert library, program and test: a simple build tool for OCaml projects
dhall-lex library, test and benchmark: Lexer for the Dhall language
diagnostician library and test
diagnostician-html library
diagnostician-terminal library
dictparser library, program and test: Parsec parsers for the DICT format produced by dictfmt -t
dino library and tests: A convenient tagless EDSL
disco library, program and tests: Functional programming language for teaching discrete math.
discokitty library: DisCoCat implementation.
djinn-ghc library: Generate Haskell code from a type. Bridge from Djinn to GHC API.
djinn-lib library: Generate Haskell code from a type. Library extracted from djinn package.
djinn-th library: Generate executable Haskell code from a type
do-notation library and test: Generalize do-notation to work on monads and indexed monads simultaneously.
do-notation-dsl library and test: An alternative to monads
dobutokO-poetry library and program: ...
dobutokO-poetry-general library: ...
dobutokO-poetry-general-languages library: Helps to order the 7 or less words to obtain somewhat suitable for poetry or music text
dobutokO2 library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
dove library: The Dove verification language.
dovetail library and test: A PureScript interpreter with a Haskell FFI.
dovetail-aeson library: Use Aeson from your Dovetail programs
DrHylo library and program: A tool for deriving hylomorphisms
drmaa library: A Haskell bindings to the DRMAA C library.
ds-kanren library and tests: A subset of the miniKanren language
DTC library: Data To Class transformation.
each library and test: Template Haskell library for writing monadic expressions more easily
Ebnf2ps program: Peter's Syntax Diagram Drawing Tool
ecma262 library and program: A ECMA-262 interpreter library
effective-aspects library and test: A monadic embedding of aspect oriented programming
effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...
eflint library and programs: Simulation interpreter for FLINT policy descriptions
egison-pattern-src library and test: Manipulating Egison patterns: abstract syntax, parser, and pretty-printer
egison-pattern-src-haskell-mode library and test: Parser and pretty printer for Egison pattern expressions in Haskell source code
egison-pattern-src-th-mode library and test: Parser and pretty printer for Egison pattern expressions to use with TH
egison-quote library: A quasi quotes for using Egison expression in Haskell code
ehs library and program: Embedded haskell template using quasiquotes.
Elm library, programs and tests: The Elm language module.
elm-bridge library and tests: Derive Elm types and Json code from Haskell types, using aeson's options
elm-build-lib library: Compile Elm code to JS within Haskell
elm-compiler library, programs and test: Values to help with elm-package, elm-make, and elm-lang.org.
elm-core-sources library: Source files for the Elm runtime and standard libraries
elm-get library and program: Tool for sharing and using Elm libraries
elm-package library and program: Package manager for Elm libraries
elm-reactor program: Interactive development tool for Elm programs
elm-server program: Server for developing Elm projects
elm-street library, programs and test: Crossing the road between Haskell and Elm
elm-syntax library and test: Elm syntax and pretty-printing
elsa library, program and test: A tiny language for understanding the lambda-calculus
enchant library, program and test: Binding to the Enchant library
Eq program: Render math formula in ASCII, and perform some simplifications
ewe program: An interpreter for EWE programming language
exception-hierarchy library: Exception type hierarchy with TemplateHaskell
exference library and program: Tool to search/generate (haskell) expressions with a given type
explain program: Show how expressions are parsed
extcore library: Libraries for processing GHC Core
fault-tree library: A fault tree analysis library.
feldspar-language library and tests: A functional embedded language for DSP and parallelism
feldspar-signal library: Signal Processing extension for Feldspar
Feval programs: Evaluation using F-Algebras
first-class-instances library and test: First-class typeclass instances
fnotation library and test
foma library: Simple Haskell bindings for Foma.
formura library and programs: Formura is a simple language to describe stencil computation.
ForSyDe library: ForSyDe's Haskell-embedded Domain Specific Language.
forsyde-deep library and test: ForSyDe's Haskell-embedded Domain Specific Language.
forsyde-shallow library and tests: ForSyDe's Haskell-embedded Domain Specific Language.
forth-hll library: A simple eDSL for generating arrayForth code.
fortran-src library, program and test: Parsers and analyses for Fortran standards 66, 77, 90, 95 and 2003 (partial).
fortran-src-extras library, program and test: Common functions and utils for fortran-src.
fortran-vars library, program and test: Fortran memory model and other static analysis tools.
fractionizer library: Numbers in the range [0.005, 1] as a sum of 2, 3, 4 or 5 unit fractions of special types.
free-theorems library: Automatic generation of free theorems.
free-theorems-counterexamples library and program: Automatically Generating Counterexamples to Naive Free Theorems
free-theorems-seq library: Taming Selective Strictness
free-theorems-seq-webui program: Taming Selective Strictness
free-theorems-webui programs: CGI-based web interface for the free-theorems package.
freesect program: A Haskell syntax extension for generalised sections
fregel program: A functional DSL for vertex-centric large-scale graph processing
fresh library: Introduce fresh variables into Haskell source code
frp-arduino library: Arduino programming without the hassle of C.
ft-generator program: implementation accompanying a WFLP'19 paper
ftshell program: Shell interface to the FreeTheorems library.
funcons-lambda-cbv-mp program: call-by-value lambda-calculus with meta-programming
funpat library: A generalization of pattern matching
Ganymede program: An Io interpreter in Haskell.
gender library and program: Identify a persons gender by their first name
ghc-core-smallstep library and test: A small-step semantics for Core
ghc-justdoit library and test: A magic typeclass that just does it
ghc-options library and program: Utilities for extracting GHC options needed to compile a given Haskell target.
ghc-parser library: Haskell source parser from GHC.
ghc-session library and program: Simplified GHC API
ghc-srcspan-plugin library: Generic GHC Plugin for annotating Haskell code with source location data.
ghci-lib library: A library for interactively evaluating Haskell code.
ghci-websockets library: A websocket server that survives GHCi reloads
gherkin library and test: Parser for a language similar to Cucumber's Gherkin
gimlh library: Haskell parser for GIML
ginger2 library, program and test: Jinja templates for Haskell
github-actions library and test: Github Actions
glean-hs library, program and test: Docker-free Haskell code indexing via Rust-native Glean substrate
GLM library, programs and test: Simple Gridlab-D GLM parser and utilities.
global library: Library enabling unique top-level declarations
glualint library, program and tests: Attempts to fix your syntax erroring Lua files.
goldplate library, program and test: A lightweight golden test runner
google-search library: EDSL for Google and GMail search expressions
GoogleTranslate library: Interface to Google Translate API
graphql library and test: Haskell GraphQL implementation
graphql-spice library and test: GraphQL with batteries
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
GroteTrap library and test: Parser and selection library for expression languages.
GTALib library and test: A library for GTA programming
hakaru library, programs and test: A probabilistic programming language
halfsplit library: A library to provide special kind of two-column output for Phladiprelio.
halide-arrayfire library and test: Integration between Halide and ArrayFire
halide-haskell library, programs and test: Haskell bindings to Halide
halide-JuicyPixels library and test: Integration between Halide and JuicyPixels
hanspell library, program and test: Korean spell checker
happstack-facebook library and program: A package for building Facebook applications using Happstack
happy-dot library, tests and benchmarks: Parser for dot made with happy.
haquil library and test: A Haskell implementation of the Quil instruction set for quantum computing.
hardware-edsl library: Deep embedding of hardware descriptions with code generation.
harp library: HaRP allows pattern-matching with regular expressions
hascalam library: Haskell to and from Scalameta
haskarrow program: A dialect of haskell with order of execution based on dependency resolution
haskell-brainfuck library, program and test: BrainFuck interpreter
haskell-coffee library: Simple CoffeeScript API
haskell-exp-parser library and test: Simple parser parser from Haskell to TemplateHaskell expressions
haskell-generate library and test: Typesafe generation of haskell source code
haskell-holes-th library and test: Infer haskell code by given type.
haskell-lexer library: A fully compliant Haskell 98 lexer
haskell-lsp-client library and program: A haskell package to build your own Language Server client.
haskell-names library and test: Name resolution library for Haskell
haskell-rules library: A DSL for expressing natural deduction rules in Haskell.
haskell-src library: Support for manipulating Haskell source code
haskell-src-exts library and test: Manipulating Haskell source: abstract syntax, lexer, parser, and pretty-printer
haskell-src-exts-observe library: Observable orphan instances for haskell-src-exts
haskell-src-exts-prisms library: Prisms with newtype wrappers for haskell-src-exts
haskell-src-exts-qq library and test: A quasiquoter for haskell-src-exts.
haskell-src-exts-sc library and program: Pretty print haskell code with comments
haskell-src-exts-util library: Helper functions for working with haskell-src-exts trees
haskell-src-meta library and tests: Parse source to template-haskell abstract syntax.
haskell-src-meta-mwotton library: Parse source to template-haskell abstract syntax.
haskell-to-elm library, programs and test: Generate Elm types and JSON encoders and decoders from Haskell types
haskell-tools-ast library: Haskell AST for efficient tooling
haskell-tools-ast-fromghc library: Creating the Haskell-Tools AST from GHC's representations
haskell-tools-ast-gen library: Facilities for generating new parts of the Haskell-Tools AST
haskell-tools-ast-trf library: Conversions on Haskell-Tools AST to prepare for refactorings
haskell-tools-backend-ghc library: Creating the Haskell-Tools AST from GHC's representations
haskell-tools-builtin-refactorings library and tests: Refactoring Tool for Haskell
haskell-tools-cli library, programs, test and benchmark: Command-line frontend for Haskell-tools Refact
haskell-tools-daemon library, program and test: Background process for Haskell-tools that editors can connect to.
haskell-tools-debug library and program: Debugging Tools for Haskell-tools
haskell-tools-demo library, program and test: A web-based demo for Haskell-tools Refactor.
haskell-tools-experimental-refactorings library and test: Refactoring Tool for Haskell
haskell-tools-prettyprint library: Pretty printing of Haskell-Tools AST
haskell-tools-refactor library and test: Refactoring Tool for Haskell
haskell-tools-rewrite library and test: Facilities for generating new parts of the Haskell-Tools AST
haskell-type-exts library: A type checker for Haskell/haskell-src-exts
haskell-typescript library: Simple TypeScript API
haskellish library: For parsing Haskell-ish languages
haskelm library, program and test: Elm to Haskell translation
haskeme library and program: Compiler from I- to S-Expressions for the Scheme Programming Language
haspell library: Haskell bindings to aspell
hbf library, programs, tests and benchmark: An optimizing Brainfuck compiler and evaluator
hdis86 library: Interface to the udis86 disassembler for x86 and x86-64 / AMD64
heap-console library and test: interactively inspect Haskell values at runtime
her-lexer library: A lexer for Haskell source code.
her-lexer-parsec library: Parsec frontend to "her-lexer" for Haskell source code.
hermit library, program and test: Haskell Equational Reasoning Model-to-Implementation Tunnel
hermit-syb library: HERMIT plugin for optimizing Scrap-Your-Boilerplate traversals.
hexpr library: A framework for symbolic, homoiconic languages.
hfmt library, program and tests: Haskell source code formatter
hgrep library and program: Search Haskell source code from the command line
hierarchical-exceptions library: Template Haskell functions to easily create exception hierarchies
hindley-milner library and test: Template for Hindley-Milner based languages
hindley-milner-type-check library and test: Type inference for Hindley-Milner based languages
hint library and test: A Haskell interpreter built on top of the GHC API
hint-server library: A server process that runs hint.
hinter library and test: Runtime Haskell interpreter (GHC API wrapper)
hinterface library and test: Haskell / Erlang interoperability library
HJavaScript library: HJavaScript is an abstract syntax for a typed subset of JavaScript.
HJScript library: HJScript is a Haskell EDSL for writing JavaScript programs.
HJVM library and test: A library to create a Java Virtual Machine and manipulate Java objects
hnock library, program and test: A Nock interpreter.
ho-rewriting library and test: Generic rewrite rules with safe treatment of variables and binders
homplexity library, program and test: Haskell code quality tool
hoop library and test: Object-Oriented Programming in Haskell
hopencc library and test: Haskell binding to libopencc
hpython library, program, test and benchmark: Python language tools
hruby library and test: Embed a Ruby intepreter in your Haskell program !
hs-gen-iface program: Utility to generate haskell-names interface files
hs-inspector library and test: Haskell source code analyzer
hs-pattrans library, program and test: DSL for musical patterns and transformation, based on contravariant functors.
hs-tree-sitter library: High-level bindings for tree-sitter
hs-tree-sitter-capi library and test: Low-level bindings for tree-sitter
hs2ats library, program, test and benchmark: Create ATS types from Haskell types
hs2dot program: Generate graphviz-code from Haskell-code.
hscolour library and program: Colourise Haskell code.
hse-cpp library: Preprocess+parse haskell code
hsnock library, program and test: Nock 5K interpreter.
hsp library: Haskell Server Pages is a library for writing dynamic server-side web pages.
HsParrot library: Haskell integration with Parrot virtual machine
HsPerl5 library: Haskell interface to embedded Perl 5 interpreter
hssqlppp library and test: SQL parser and type checker
hssqlppp-th library and test: hssqlppp extras which need template-haskell
hswip library: embedding prolog in haskell
hsx library and program: HSX (Haskell Source with XML) allows literal XML syntax in Haskell source code.
hsx2hs library and program: HSX (Haskell Source with XML) allows literal XML syntax in Haskell source code.
htoml library, test and benchmark: Parser for TOML files
htoml-megaparsec library, test and benchmark: Parser for TOML files
hubris library and program: Support library for Hubris, the Ruby <=> Haskell bridge
hunspell-hs library, test and benchmark: Hunspell thread-safe FFI bindings for spell checking.
husk-scheme library and programs: R5RS Scheme interpreter, compiler, and library.
husk-scheme-libs library: Extra libraries for the husk Scheme platform.
hwhile library, program and test: An implementation of Neil D. Jones' While language
hydrogen-cli program: Hydrogen Data
hydrogen-cli-args library: Hydrogen Command Line Arguments Parser
hydrogen-data library: Hydrogen Data
hydrogen-multimap library: Hydrogen Multimap
hydrogen-parsing library: Hydrogen Parsing Utilities
hydrogen-prelude library: Hydrogen Prelude
hydrogen-prelude-parsec library: Hydrogen Prelude /w Parsec
hydrogen-syntax library: Hydrogen Syntax
hydrogen-util library: Hydrogen Tools
hydrogen-version library: Hydrogen Version Type
hypertypes library, test and benchmark: Typed ASTs
ihs program: Interpolated Haskell
imperative-edsl library and test: Deep embedding of imperative programs with code generation
imperative-edsl-vhdl library: Deep embedding of VHDL programs with code generation.
ImperativeHaskell library: A library for writing Imperative style haskell.
imprevu library and test: Reactive programming language based on a DSL
imprevu-happstack library and test: Imprevu support for Happstack
improve library: An imperative, verifiable programming language for high assurance applications.
inch program and test: A type-checker for Haskell with integer constraints
indexed-do-notation library: Do notation for indexed monads
indian-language-font-converter library: Indian Language Font Converter
indigo library, program and test: Convenient imperative eDSL over Lorentz.
intensional-datatys library, program and test: A GHC Core plugin for intensional datatype refinement checking
interpol library, program and test: GHC preprocessor and library to enable variable interpolation in strings
intrinsic-superclasses library: A quasiquoter for better instance deriving and default methods
invertible-grammar library: Invertible parsing combinators framework
ion library and program: EDSL for concurrent, realtime, embedded programming on top of Ivory
ipa library and test: Internal Phonetic Alphabet (IPA)
ivory library: Safe embedded C programming.
ivory-artifact library: Manage additional data files during Ivory compilation.
ivory-avr-atmega328p-registers library: Ivory register bindings for the Atmega328p
ivory-backend-c library: Ivory C backend.
ivory-bitdata library and program: Ivory bit-data support.
ivory-examples program: Ivory examples.
ivory-hw library: Ivory hardware model (STM32F4).
ivory-opts library: Ivory compiler optimizations.
ivory-serialize library: Serialization library for Ivory.
ivory-stdlib library: Ivory standard library.
ixdopp program: A preprocessor for expanding "ixdo" notation for indexed monads
jacinda library, program, test and benchmark: Functional, expression-oriented data processing language
jarfind library and program: Tool for searching java classes, members and fields in classfiles and JAR archives
jaskell library and test: Stack-based concatenative language embedded in Haskell
Javasf program: A utility to print the SourceFile attribute of one or more Java class files.
Javav program: A utility to print the target version of Java class files.
jdi library and program: Implementation of Java Debug Interface
jmacro library and programs: QuasiQuotation library for programmatic generation of Javascript code.
joy-rewrite library and test: Transform Joy code using conditional rewrite rules
js-good-parts library: Javascript: The Good Parts -- AST & Pretty Printer
JsContracts library and program: Design-by-contract for JavaScript
jsmw library: Javascript Monadic Writer base package.
json-python library: Call python inline from haskell
JsonGrammar library and test: Combinators for bidirectional JSON parsing
jvm-binary library, test and benchmark: A library for reading Java class-files
jvm-parser library: A parser for JVM bytecode files
kansas-lava library and programs: Kansas Lava is a hardware simulator and VHDL generator.
kbq-gu programs: Rpoku spoken word programming language
kempe library, program, tests and benchmark: Kempe compiler
kuifje library: A Quantitative Information Flow aware programming language.
kure library: Combinators for Strategic Programming
kure-your-boilerplate library: Generator for Boilerplate KURE Combinators
lambda-calculator library, program and tests: A lambda calculus interpreter
lambda-calculus-interpreter library, program and test: Lambda Calculus interpreter
lambda-placeholders library: A library to emulate laceholders similar to Scala.
lambdaBase library and test
LambdaCalculator program: A basic lambda calculator with beta reduction and a REPL
lambdaLit program: ...
LambdaPrettyQuote library and test: Quasiquoter, and Arbitrary helpers for the lambda calculus.
lang library: A Lisp
language-asn library: ASN.1 encoding and decoding
language-asn1 library, program and test: Parsing of ASN1 definitions
language-ats library, test and benchmark: Parser and pretty-printer for ATS.
language-bash library and test: Parsing and pretty-printing Bash shell scripts
language-bluespec library: An implementation of the Bluespec Haskell AST
language-boogie library and programs: Interpreter and language infrastructure for Boogie.
language-c library and test: Analysis and generation of C code
language-c-comments library: Extracting comments from C code
language-c-inline library and test: Inline C & Objective-C code in Haskell for language interoperability
language-c-quote library and test: C/CUDA/OpenCL/Objective-C quasiquoting library.
language-c99 library: An implementation of the C99 AST that strictly follows the standard.
language-c99-simple library: C-like AST to simplify writing C99 programs.
language-c99-util library: Utilities for language-c99.
language-cil library: Manipulating Common Intermediate Language AST
language-csharp library: C# source code manipulation
language-css library: CSS 2.1 syntax
language-dart library and test: Manipulating Dart source: abstract syntax and pretty-printer
language-dickinson library, program, test and benchmark: A language for generative literature
language-dot library, program and test: A library for the analysis and creation of Graphviz DOT files
language-ecmascript library and test: JavaScript parser and pretty-printer library
language-ecmascript-analysis library: JavaScript static analysis library.
language-eiffel library: Parser and pretty printer for the Eiffel language.
language-fortran library: Fortran lexer and parser, language support, and extensions.
language-gcl library: Something similar to Dijkstra's guarded command language
language-glsl library, program and test: GLSL abstract syntax tree, parser, and pretty-printer
language-go library: A library for analysis and synthesis of Go code.
language-guess library: Guess at which language a text is written in using trigrams.
language-java library and test: Java source manipulation
language-java-classfile library: Parser for Java .class files
language-javascript library and test: Parser for JavaScript
language-js library and test: javascript parser for es6 and es7.
language-kort library and test: Parser and serializer for the Kort information language.
language-lua library, test and benchmark: Lua parser and pretty-printer
language-lua-qq library and test: Initial project template from stack
language-lua2 library, programs and test: Lua parser and pretty printer
language-mixal library and program: Parser, pretty-printer, and AST types for the MIXAL assembly language
language-Modula2 library, program and test: Parser, pretty-printer, and more for the Modula-2 programming language
language-ninja library, programs and tests: A library for dealing with the Ninja build language.
language-nix library and test: Data types and functions to represent the Nix language
language-oberon library, program and test: Parser, pretty-printer, and more for the Oberon programming language
language-objc library: Analysis and generation of Objective C code
language-ocaml library and test: Language tools for manipulating OCaml programs in Haskell
language-openscad library and program: A simple parser for OpenSCAD
language-pig library and test: Pig parser in haskell.
language-python library: Parsing and pretty printing of Python code.
language-python-colour program: Generate coloured XHTML for Python code.
language-python-test programs: testing code for the language-python library
language-qux library: Utilities for working with the Qux language
language-rust library, tests and benchmarks: Parsing and pretty printing of Rust code
language-sally library: AST and pretty printer for Sally
language-sh library: A package for parsing shell scripts
language-slice library and test: AST and parser for the ZeroC Slice language (Specification language for ICE)
language-smtlib library, programs and test: Parsing, printing and incremental I/O for the SMT-LIB 2 format
language-spir-v library and test: Data type for SPIR-V
language-sqlite library: Full parser and generator for SQL as implemented by SQLite3
language-sygus library and test: A parser and printer for the SyGuS 2.0 language.
language-thrift library and test: Parser and pretty printer for the Thrift IDL format.
language-tl library and test: A Parser for the Type Language
language-typescript library: A library for working with TypeScript Definition files
language-vhdl library: VHDL AST and pretty printer in Haskell.
language-webidl library and test: Parser and Pretty Printer for WebIDL
layout-rules library: A collection of different layout implementations
LC3 program: LC-3 virtual machine
lens-toml-parser library and test: Lenses for toml-parser
lexer-applicative library and test: Simple lexer based on applicative regular expressions
lhs2tex program: Preprocessor for typesetting Haskell sources with LaTeX
lhs2TeX-hl program: Literate highlighter preprocessor for lhs2tex
LibClang library: Haskell bindings for libclang (a C++ parsing library)
libconfig library and test: Haskell bindings to libconfig
lift-generics library and test: GHC.Generics-based Language.Haskell.TH.Syntax.lift implementation
linear-core-prototype library and test: Linear core validates optimizations wrt linearity
linkcore program: Combines multiple GHC Core modules into a single module
liquid-base library: base specs for LiquidHaskell
liquid-bytestring library: Old specs for the bytestring package
liquid-containers library: Old specs for containers
liquid-finfield library: Finite field utilities for LiquidHaskell (requires cvc5)
liquid-fixpoint library, program and tests: Predicate Abstraction-based Horn-Clause/Implication Constraint Solver
liquid-ghc-prim library: Drop-in ghc-prim replacement for LH
liquid-parallel library: LiquidHaskell specs for the parallel package
liquid-platform program: A battery-included platform for LiquidHaskell
liquid-prelude library: General utility modules for LiquidHaskell
liquid-vector library: LiquidHaskell specs for the vector package
liquidhaskell library: Liquid Types for Haskell
liquidhaskell-boot library and tests: Liquid Types for Haskell
located library: Source location helpers
lojban library and program: Useful utilities for the Lojban language
lojbanParser library and program: lojban parser
lojbanXiragan library and program: lojban to xiragan
lojysamban program: Prolog with lojban
lol-calculus program: Calculus for LOL (λω language).
lol-typing library and test: Type inferencer for LOL (λω language)
lorentz library: EDSL for the Michelson Language
LslPlus program: An execution and testing framework for the Linden Scripting Language (LSL)
lss library and test: ...
ltl library: Using linear temporal logic (LTL) to verify embedded software and hardware.
lua-bc library: Lua bytecode parser
luka library: Simple ObjectiveC runtime binding
luthor library and tests: Tools for lexing and utilizing lexemes that integrate with Parsec.
MagicHaskeller library and programs: Automatic inductive functional programmer by systematic search
mathista library, program and test: A small programming language for numerical computing
maude library: An interface to the Maude rewriting system.
mcm programs: Machine Configuration Manager
mcmc-synthesis library: MCMC applied to probabilistic program synthesis
mecha library and program: A constructive solid geometry (CSG) modeling language.
melody library, program and test: A functional scripting language
meta-misc library: Utility library providing miscellaneous meta-programming utilities.
mi library: Multiple Instance for Haskell
MicroCabal program: A partial Cabal replacement
MicroHs program: A small compiler for Haskell
MicrosoftTranslator library: Interface for Microsoft Translator
mida library, program and test: Language for algorithmic generation of MIDI files
mikrokosmos program and test: Lambda calculus interpreter
miniforth library and program: Miniature FORTH-like interpreter
ministg program: an interpreter for an operational semantics for the STG machine.
ml-w library and program: Minimal ML language to to demonstrate the W type infererence algorithm.
mmsyn2-array library: A library that can be used for multiple Ord a => a -> b transformations.
mmsyn2-array-ukrainian-data library: Data that is taken from the ukrainian-phonetics-basic-array for optimization.
mmsyn2-hashable library: A library that can be used for multiple Hashable a => a -> b transformations.
mmsyn6ukr library and program: A musical instrument synthesizer or a tool for Ukrainian language listening
mmsyn6ukr-array library and program: A musical instrument synthesizer or a tool for Ukrainian language listening
mmsyn7h library and program: Produces a sound recording specified by the Ukrainian text.
mmsyn7s library and program: ...
mmsyn7ukr library and program: ...
mmsyn7ukr-array library: ...
mmsyn7ukr-common library: Some common for mmsyn7ukr and mmsyn7ukr-array functionality using SoX.
modelicaparser library and tests: A parser for the modelica language
modulespection library: Template Haskell for introspecting a module's declarations
modulo library and program: Modular C code generator
morley library and program: Developer tools for the Michelson Language
morley-upgradeable library, program and test: Upgradeability infrastructure based on Morley.
morloc library, program and test: A multi-lingual, typed, workflow language
msgpack-idl library, program and test: An IDL Compiler for MessagePack
msh library: Object-Oriented Programming in Haskell
mueval library, program and test: Safely evaluate pure Haskell expressions
mulang library, program and test: An intermediate language designed to perform advanced code analysis
nanopass library and program: Create compilers using small passes and many intermediate representations.
NanoProlog library and program: Very small interpreter for a Prolog-like language
naver-translate library: Interface to Naver Translate
netlist library: Netlist AST
netlist-to-vhdl library: Convert a Netlist AST to VHDL
nirum library, program and tests: IDL compiler and RPC/distributed object framework for microservices
nix-eval library and test: Evaluate Haskell expressions using Nix to get packages
nom library and tests: Name-binding & alpha-equivalence
nominal library: Binders and alpha-equivalence made easy
Nomyx-Language library: Language to express rules for Nomic
nomyx-language library: Language to express rules for Nomic
nomyx-library library: Library of rules for Nomyx
Nomyx-Rules library: Language to express rules for Nomic
ntha library, program and test: A tiny statically typed functional programming language.
NXTDSL library and program: Generate NXC Code from DSL
oberon0 library and programs: Oberon0 Compiler
Obsidian library: Embedded language for GPU Programming
octopus library and program: Lisp with more dynamism, more power, more simplicity.
omega program: A purely functional programming language and a proof system
operational-alacarte library and test: A version of Operational suitable for extensible EDSLs
oplang program: Stack-based esoteric programming language
optimusprime program: A supercompiler for f-lite
Ordinary library, program and test: A Programming Language in Construction
org2anki program: Basic org to anki exporter
pads-haskell library and tests: PADS data description language for Haskell.
paragon library and program: Paragon
Paraiso library and test: a code generator for partial differential equations solvers.
pattern-matcher library and test: A library for compiling pattern-matching to decision trees
pec library and programs: pec embedded compiler
peggy library and program: The Parser Generator for Haskell
pgf2 library: Bindings to the C version of the PGF runtime
phino library, program, test and benchmark: Command-Line Manipulator of 𝜑-Calculus Expressions
phladiprelio-general-datatype library: Extended functionality of PhLADiPreLiO
phladiprelio-general-shared library: A shared by different general implementations of the PhLADiPreLiO functionality.
phladiprelio-general-simple library: ...
phladiprelio-rhythmicity-shared library: Allows to estimate some kind of the rhythmicity properties for the text
phladiprelio-tests library: Common for Ukrainian and general data for test mode.
phladiprelio-ukrainian-shared library: A shared by different Ukrainian implementations of the PhLADiPreLiO functionality.
phladiprelio-ukrainian-simple library and program: ...
phonetic-languages-basis library: A basics of the phonetic-languages (PhLADiPreLiO-related) functionality.
phonetic-languages-common library: A generalization of the uniqueness-periods-vector-common package.
phonetic-languages-constaints library: Constraints to filter the needed permutations
phonetic-languages-constraints library: Constraints to filter the needed permutations
phonetic-languages-constraints-array library: Constraints to filter the needed permutations
phonetic-languages-examples library and programs: A generalization of the uniqueness-periods-vector-examples functionality.
phonetic-languages-general library: A generalization of the uniqueness-periods-vector-general functionality.
phonetic-languages-permutations library: Commonly used versions of the phonetic-languages-common package
phonetic-languages-permutations-array library: Permutations and universal set related functions for the phonetic-languages series
phonetic-languages-phonetics-basics library and program: A library for working with generalized phonetic languages usage.
phonetic-languages-plus library and program: Some common shared between different packages functions.
phonetic-languages-properties library: A generalization of the uniqueness-periods-vector-properties package.
phonetic-languages-rhythmicity library: Allows to estimate the rhythmicity properties for the text
phonetic-languages-simplified-base library: A basics of the phonetic-languages functionality that can be groupped.
phonetic-languages-simplified-common library: A simplified version of the phonetic-languages-functionality
phonetic-languages-simplified-examples-array library and programs: Helps to create Ukrainian texts with the given phonetic properties.
phonetic-languages-simplified-examples-common library: Some commonly used by phonetic-languages-simplified* series functions.
phonetic-languages-simplified-generalized-examples-array library: Helps to create texts with the given phonetic properties (e. g. poetic).
phonetic-languages-simplified-generalized-examples-common library: Some common code for phonetic languages generalized functionality.
phonetic-languages-simplified-generalized-properties-array library: Some 'properties' of the phonetic languages approach text.
phonetic-languages-simplified-lists-examples library and programs: Simplified and somewhat optimized version of the phonetic-languages-examples.
phonetic-languages-simplified-properties-array library: Some properties of the data related to rhythmicity.
phonetic-languages-simplified-properties-array-common library: Common functionality for 'with-tuples' and old version of properties.
phonetic-languages-simplified-properties-array-old library: Some properties of the data related to rhythmicity.
phonetic-languages-simplified-properties-lists library: A generalization of the uniqueness-periods-vector-properties package.
phonetic-languages-simplified-properties-lists-double library: A generalization of the uniqueness-periods-vector-properties package.
phonetic-languages-ukrainian library: Prepares Ukrainian text to be used as a phonetic language text
phonetic-languages-ukrainian-array library and program: Prepares Ukrainian text to be used as a PhLADiPreLiO text
phonetic-languages-vector library: A generalization of the functionality of the uniqueness-periods-vector package.
pisigma library and program: A dependently typed core language
Plural library: Pluralize English words
plural library and test: Pluralize
polysemy library and test: Higher-order, low-boilerplate free monads.
polyseq library and program: Taming Selective Strictness
portable-template-haskell-lens library: Lenses for the AST of Template Haskell 2.11 and Template Haskell < 2.11
powerpc library: Tools for PowerPC programs.
prelude-edsl library: An EDSL-motivated subset of the Prelude
preprocess-haskell library: Preprocess Haskell Repositories.
preprocessor-tools library: A framework for extending Haskell's syntax via quick-and-dirty preprocessors
pro-abstract library and test: Abstract syntax for writing documents
processor-creative-kit library: a creation kit for instruction sets and cpu simulators and development tools
prolog library: A Prolog interpreter written in Haskell.
prolog-graph program: A command line tool to visualize query resolution in Prolog.
prolog-graph-lib library: Generating images of resolution trees for Prolog queries.
prosidy library and test: A simple language for writing documents.
prosidyc library: A DSL for processing Prosidy documents.
Pugs program: A Perl 6 Implementation
purekell library and test: Bidirectional Haskell/PureScript expression translator
purescript library, program and test: PureScript Programming Language Compiler
purescript-ast library: PureScript Programming Language Abstract Syntax Tree
purescript-cst library: PureScript Programming Language Concrete Syntax Tree
purescript-tsd-gen library and program: TypeScript Declaration File (.d.ts) generator for PureScript
pyffi library: Call python inline from haskell
pyfi library: Call python inline from haskell
qbe library and test: Types and prettyprinter for the IL of the QBE compiler backend
quenya-verb library and program: Quenya verb conjugator
r-glpk-phonetic-languages-ukrainian-durations library and program: Can be used to calculate the durations of the approximations of the Ukrainian phonemes.
rail-compiler-editor library, programs and test: Compiler and editor for the esolang rail.
raw-feldspar library and tests: Resource-Aware Feldspar
readpyc program: Read and pretty print Python bytecode (.pyc) files.
really-simple-xml-parser library: A really simple XML parser
rebound library and test: A variable binding library based on well-scoped de Bruijn indices.
recursors library and test: Auto-generate final encodings and their isomorphisms using Template Haskell
refinery library and test: Toolkit for building proof automation systems
reflex-jsx library: Use jsx-like syntax in Reflex
register-machine-typelevel library: A computationally universal register machine implementation at the type-level
reorder-expression library and test: Reorder expressions in a syntax tree according to operator fixities.
resin library: High performance variable binders
rope library: Tools for manipulating fingertrees of bytestrings with optional annotations
rope-utf16-splay library and test: Ropes optimised for updating using UTF-16 code units and row/column pairs.
rtk library, program and tests: Parser and rewrite facility generator from grammar specifications
runtime-arbitrary library: Runtime generation of Arbitrary values
satyros library and test: Step-by-step SAT solver for educational purposes
scip library: Haskell bindings for the SCIP code intelligence protocol
SCRIPTWriter library and program: ESCRIPT: a human friendly language for programming Bitcoin scripts
seal-module library: Template Haskell support for global configuration data
semantic library: Framework and service for analyzing and diffing untrusted code.
sequitur library, program, test and benchmark: Grammar-based compression algorithms SEQUITUR
sexp library, program and test: S-Expression parsing/printing made fun and easy
sexp-grammar library, test and benchmark: Invertible grammar combinators for S-expressions
shaderc library and test: A collection of tools and libraries for Vulkan shader compilation
shady-gen library: Functional GPU programming - DSEL & compiler
shake-dhall library and test: Dhall dependencies
she library and program: A Haskell preprocessor adding miscellaneous features
shentong program: A Haskell implementation of the Shen programming language
shivers-cfg library: Implementation of Shivers' Control-Flow Analysis
shortcut library
show library: 'Show' instances for Lambdabot
shplit program: A Haskell pattern splitter with emacs attachments
sifflet library, program and test: Simple, visual, functional language for learning about recursion.
sifflet-lib library: Library of modules shared by sifflet and its tests and its exporters.
signals library: Synchronous signal processing for DSLs.
simple-c-value library and test: A simple C value type
simple-eval library and program: Evaluate a Text to an Integer: "1 + 1" -> 2
simple-ltl library, test and benchmark: A simple LTL checker
simple-sql-parser library and tests: A parser for SQL.
sized-types library, program and test: Sized types in Haskell using the GHC Nat kind.
sketch-frp-copilot library: Sketch programming with Copilot
slot-lambda library: Write lambdas without naming the parameters.
smt-lib library: Parsing and printing SMT-LIB.
smt2-parser library and test: A Haskell parser for SMT-LIB version 2.6
snaplet-lss library and test: Lexical Style Sheets - Snap Web Framework adaptor.
SNet library: Declarative coördination language for streaming networks.
snmp library: SNMP protocol library
sound-change library and test: Apply sound changes to words
spade library, program and test: A simple programming and debugging environment.
specialize-th library and test: Create specialized types from polymorphic ones using TH
spir-v library: Some utilities for reading and writing SPIR-V files
staticanalysis library: Reusable static analysis interfaces and modules.
Strafunski-Sdf2Haskell program: Converts SDF to Haskell
string-interpreter library: Is used in the phonetic languages approach (e. g. in the recursive mode).
stylish-cabal library, program and tests: Format Cabal files
stylish-haskell library, program and test: Haskell code prettifier
stylist library and test: Apply CSS styles to a document tree.
subleq-toolchain library, program and test: Toolchain of subleq computer.
sugar-scheme library and test: Sugar with Scheme
sugarhaskell programs: Library-based syntactic extensibility for Haskell
sunroof-compiler library: Monadic Javascript Compiler
sunroof-examples programs: Tests for Sunroof
sunroof-server library: Monadic Javascript Compiler - Server Utilities
surjective library: An output coverage checker
sv2v program: SystemVerilog to Verilog conversion
swearjure program: Clojure without alphanumerics.
symantic library: Library for Typed Tagless-Final Higher-Order Composable DSL
symantic-grammar library and test: Library for symantic grammars.
symantic-lib library and test: Symantics for common types.
synt library, program and test: Similar code analysis.
syntactic library, test and benchmark: Generic representation and manipulation of abstract syntax
syntax-trees library: Convert between different Haskell syntax trees.
syntax-trees-fork-bairyn library: Convert between different Haskell syntax trees. Bairyn's fork.
tal library: An implementation of Typed Assembly Language (Morrisett, Walker, Crary, Glew)
tempi library: For representing musical tempi
tempus program: Interpreter for the FRP language Tempus
tensor-safe library and program: Create valid deep neural network architectures
termination-combinators library: Termination combinators for forcing non-terminating algorithms to terminate
tersmu library and programs: A semantic parser for lojban
text-register-machine library: A Haskell implementation of the 1# Text Register Machine
th-alpha library and test: Alpha equivalence for TH Exp
th-bang-compat library: Compatibility for bang-type template
th-constraint-compat library: Compatibility for type constraint template
th-data-compat library: Compatibility for data definition template of TH
th-dict-discovery library: Automatically discover available dictionaries at compile time.
th-instances library and test: A place to collect orphan instances for Template Haskell
th-lift library and test: Derive Template Haskell's Lift class for datatypes.
th-reify-compat library: Compatibility for the result type of TH reify
th-strict-compat library: Compatibility shim for Bang and Strict in Template Haskell.
thih library and program: Typing Haskell In Haskell
to-haskell library: A type class and some utilities for generating Haskell code.
tptp library and tests: Parser and pretty printer for the TPTP language
transformations library and program: Generic representation of tree transformations
traverse-code library and test: General data structure lifting for Template Haskell
trhsx library: Deprecated
TTTAS library: Typed Transformations of Typed Abstract Syntax
turkish-deasciifier library, program and test: Haskell port of Deniz Yuret's Turkish deasciifier.
type-of-html library, tests and benchmarks: High performance type driven html generation.
type-of-html-static library and test: Optimize static parts of type-of-html.
type-settheory library: Sets and functions-as-relations in the type system
type-sub-th library and test: Substitute types for other types with Template Haskell
type-tree library and test: Tree representations of datatypes
typescript-docs program: A documentation generator for TypeScript Definition files
ukrainian-phonetics-basic library: A library to work with the basic Ukrainian phonetics and syllable segmentation.
ukrainian-phonetics-basic-array library: A library to work with the basic Ukrainian phonetics and syllable segmentation.
ukrainian-phonetics-basic-array-bytestring library: A library to work with the basic Ukrainian phonetics and syllable segmentation.
ukrainian-phonetics-common library: A library to work with the basic Ukrainian phonetics and syllable segmentation.
unbound library and test: Generic support for programming with names and binders
unbound-generics library, test and benchmark: Support for programming with names and binders using GHC Generics
unbound-generics-unify library: Unification based on unbound-generics
unbound-kind-generics library: Support for programming with names and binders using kind-generics
unification-fd library: Simple generic unification algorithms.
unipatterns library: Helpers which allow safe partial pattern matching in lambdas
uniqueness-periods library: Can be used to produce the 'uniquenessPeriods' function and related functionality.
uniqueness-periods-general library: Can be used to produce the similar to 'String.Ukrainian.UniquenessPeriods' functions.
uniqueness-periods-vector library: ...
uniqueness-periods-vector-common library: Generalization of the dobutokO-poetry-general package functionality
uniqueness-periods-vector-examples library and programs: Usage examples for the uniqueness-periods-vector series of packages
uniqueness-periods-vector-filters library: A library allows to change the structure of the 'RealFrac' function output.
uniqueness-periods-vector-general library: Some kind of the optimization approach to data inner structure.
uniqueness-periods-vector-properties library: Metrices for the maximum element for the uniqueness-periods-vector packages family.
universe-th library and test: Construct a Dec's ancestor list.
unlit library and program: Tool to convert literate code between styles or to code.
unpacked-containers library and program: Unpacked containers via backpack
urldisp-happstack library: Simple, declarative, expressive URL routing -- on happstack.
URLT library: Library for maintaining correctness of URLs within an application.
valid-names library: Valid operator/module characters
verifiable-expressions library: An intermediate language for Hoare logic style verification.
verilog library: Verilog preprocessor, parser, and AST.
vhdl library: VHDL AST and pretty printer
wasm library and test: WebAssembly Language Toolkit and Interpreter
web-routes library and test: portable, type-safe URL routing
web-routes-boomerang library: Use boomerang for type-safe URL parsers/printers
web-routes-generics library: portable, type-safe URL routing
web-routes-happstack library: Adds support for using web-routes with Happstack
web-routes-hsp library: Adds XMLGenerator instance for RouteT monad
web-routes-mtl library: Extends web-routes with mtl-based MonadIO / MonadTrans RouteT instances
web-routes-regular library: portable, type-safe URL routing
web-routes-th library and test: Support for deriving PathInfo using Template Haskell
web-routes-transformers library: Extends web-routes with some transformers instances for RouteT
web-routes-wai library: Library for maintaining correctness of URLs within an application.
WebBits library: JavaScript analysis tools
WebBits-Html library: JavaScript analysis tools
WebBits-multiplate library: A Multiplate instance for JavaScript.
webidl library and programs: Parser and Pretty Printer for the Web IDL Language
while-lang-parser library: Parser for the While language.
Wired library: Wire-aware hardware description
word-note-sox library: SoX for algorithmic composition with groups of notes liken to words
words library: Cross-platform access to a list of words
XmlHtmlWriter library: A library for writing XML and HTML
yabi-muno library and program: Yet Another Brainfuck Interpreter
ychr library, programs, test and benchmark: A Constraint Handling Rules compiler with multiple backends
yosys-rtl library and test: Yosys RTL Intermediate Language
z3-encoding library and test: High-level assertion encoding to Z3 solver
zabt library and test: Simple-minded abstract binding trees
zasni-gerna library: lojban parser (zasni gerna)
zephyr-copilot library and test: Embedded programming in haskell using the Copilot stream DSL and Zephyr
zeroth library and program: ZeroTH - remove unnecessary TH dependencies
zwirn library, programs, tests and benchmark: a live coding language for playing with nested functions of time

Language Tools

oden-go-packages library: Provides Go package metadata.

Language.Nix

nix-tree library, program and test: Interactively browse a Nix store paths dependencies
nixdu program: Interactively browse a Nix store paths dependencies

Languages

Frank program: An experimental programming language with typed algebraic effects
simple-pascal library and program: Simplified Pascal language to SSVM compiler
simple-stacked-vm library and program: Simple stacked virtual machine: assembler, disassembler, bytecode interpreter
why3 library: Haskell support for the Why3 input format.

LaTeX

ghci4luatex library, program and test: A GHCi session in LaTeX
haskintex library and program: Haskell Evaluation inside of LaTeX code.
HaTeX library and tests: The Haskell LaTeX library.
hatex-guide library: HaTeX User's Guide.
simplex program: A simple markup language that translates to LaTeX
smallcaps library, programs and tests: Flatten camel case text in LaTeX files
texbuilder program: View your latex output while editing

LaunchWizard

stratosphere-launchwizard library: Stratosphere integration for AWS LaunchWizard.

Lazy

promises library: Lazy demand-driven promises

Learning

realworldhaskell library and test: The Real World Haskell Book

Learning Environments

gym-http-api library and program: REST client to the gym-http-api project

Learning Haskell

antiprimes library and test: Initial project template from stack

Lens

barlow-lens library and tests: lens via string literals
composite-lens-extra library: Extra lens functions for composite.
cornea library and test: classy optical monadic state
generic-lens library and tests: Generically derive traversals, lenses and prisms.
generic-lens-core library: Generically derive traversals, lenses and prisms.
generic-lens-labels library: GHC.OverloadedLabels.IsLabel instance for lenses from ghc-generics
generic-lens-lite library and test: Monomorphic field lens like with generic-lens
generic-optics library and tests: Generically derive traversals, lenses and prisms.
generic-optics-lite library and test: Monomorphic field opics like with generic-lens
hedgehog-lens library: Hedgehog properties for lens laws.
hexml-lens library and test: Lenses for the hexml package
http-client-lens library: Optics for http-client
lens-named library: Helper for use with lens
minilens library: A minimalistic lens library, providing only the simplest, most basic lens functionality.
persistent-template-classy library and test: Generate classy lens field accessors for persistent models
ral-lens library: Length-indexed random access lists: lens utilities.
text-lens library and test: Lenses for operating over text
these-lens library: Lenses for These
vec-lens library: Vec: length-indexed (sized) list: lens support

Lenses

app-lens library and benchmarks: applicative (functional) bidirectional programming beyond composition chains
bff-mono library: "Bidirectionalization for Free" for Monomorphic Transformations
BiGUL library: The Bidirectional Generic Update Language
concise library and test: Utilities for Control.Lens.Cons
dani-optics-dot library and test: Use OverloadedRecordDot for nested optics access.
data-lens-light library: Simple lenses, minimum dependencies
extended-containers-lens library: lens instances for extended-containers
fclabels library, test and benchmark: First class accessor labels implemented as lenses.
haskell-time-range library and test: Some useful wrappers and functions for building time ranges
indexed-profunctors library: Utilities for indexed profunctors
lens library, tests and benchmarks: Lenses, Folds and Traversals
lens-accelerate library: Instances to mix lens with Accelerate
lens-action library: Monadic Getters and Folds
lens-aeson library: Law-abiding lenses for aeson
lens-core library: A placeholder for a future lens core package.
lens-datetime library: Lenses for Data.Time.* types
lens-errors library and test: Error handling in lens chains
lens-family library: Lens Families
lens-family-core library: Haskell 2022 Lens Families
lens-indexed-plated library: Indexed version of Plated.
lens-properties library: QuickCheck properties for lens
lens-simple library: simplified import of elementary lens-family combinators
lens-toml-parser library and test: Lenses for toml-parser
lens-typelevel library: Type-level lenses using singletons
lenz library: Van Laarhoven lenses
lenz-mtl library: mtl operations with Van Laarhoven lenses
lenz-template library: Van Laarhoven lens templates
mezzolens library: Pure Profunctor Functional Lenses
microlens library: A tiny lens library with no dependencies
microlens-contra library: True folds and getters for microlens
microlens-each library: 'each' for microlens
microlens-ghc library: microlens + array, bytestring, containers, transformers
microlens-mtl library: microlens support for Reader/Writer/State from mtl
microlens-platform library: microlens + all batteries included (best for apps)
microlens-pro library: Prisms and isomorphisms for microlens
microlens-th library and test: Automatic generation of record lenses for microlens
multiplate library: Lightweight generic library for mutually recursive data types.
mutable-lens library, tests and benchmark: Interoperate mutable references with regular lens
optics library, test and benchmarks: Optics as an abstract interface
optics-core library: Optics as an abstract interface: core definitions
optics-extra library: Extra utilities and instances for optics-core
optics-operators library, program and test: A tiny package containing operators missing from the official package.
optics-th library and test: Optics construction using TemplateHaskell
optics-vl library: Utilities for compatibility with van Laarhoven optics
polysemy-optics library: Optics for Polysemy.
profunctor-optics library and program: A compact optics library compatible with the typeclasses in profunctors.
prolens library and tests: Profunctor-based lightweight implementation of optics
putlenses library: Put-based lens library
sliceofpy library, program and test: Python-ish slicing traversals for Haskell.
smallcheck-lens library: SmallCheck properties for lens
split-morphism library and test: Split Epimorphisms and Monomorphisms
strict-containers-lens library: Strict containers - Lens instances
strict-lens library: Lenses for types in strict package
tables library and test: In-memory storage with multiple keys using lenses and traversals
tasty-lens library and test: Tasty TestTrees for Lens validation
template-haskell-optics library: Optics for template-haskell types
vitrea library: Profunctor optics via the profunctor representation theorem.
with-index library: A tiny library for composing indexed traversals

Lex

stratosphere-lex library: Stratosphere integration for AWS Lex.

Lexer

hlex library and test: Simple Lexer Creation
language-ats library, test and benchmark: Parser and pretty-printer for ATS.
platinum-parsing library, program and test: General Framework for compiler development.

Lexers

dhall-lex library, test and benchmark: Lexer for the Dhall language

Lexing

sasha library and test: A staged lexer generator

Lib

i3ipc library and test: A type-safe wrapper around i3's IPC
postgres-embedded library and test: Library for easily running embedded PostgreSQL server for tests.
servant-gdp library: Use Servant and GDP together to create expressive web API types

Library

aeson-default library and test: Apply default value to FromJSON instacnes' Maybe fields
antlr-haskell library and tests: A Haskell implementation of the ANTLR top-down parser generator
asset-bundle library: A build-time Cabal library that bundles executables with assets
backstop library, program and test: Backstop a target directory by source directories
bglib library and program: Implementation of the BGAPI serial protocol
boots library and test: IoC Monad in Haskell
boots-app library and program: Factory for quickly building an application
boots-cloud library: Factory for quickly building a microservice
boots-web library: Factory for quickly building a web application
byteunits library and test: Human friendly conversion between byte units (KB, MB, GB...)
c-mosquitto library, program and test: Simpe mosquito MQTT binding able to work with the Amazons IoT
cabal-auto-expose library: Build time library that autodetects exposed modules
cfenv library and test: A library getting the environment when running on Cloud Foundry
co-log-effectful library and test: effectful log effect using co-log-core
Condor library, program and test: Information retrieval library
condor library, program and test: Information retrieval library
double-extra library: Missing presentations for Double numbers (fixed, scientific etc.)
easytensor-vulkan library: Use easytensor with vulkan-api.
error-or library: Composable, hierarchical errors.
error-or-utils library: Utilities using ErrorOr datatype
extended library and test: Support for an 80-bit extended float.
fcm-client library, program and test: Admin API for Firebase Cloud Messaging
Gamgine library: Some kind of game library or set of utilities.
genai-lib library and programs: A library for interacting with various generative AI LLMs
Gifcurry library and programs: GIF creation utility.
git-config library and test: A simple parser for Git configuration files
glider-nlp library and test: Natural Language Processing library
godot-megaparsec library and program: Megaparsec parser for Godot `tscn` and `gdextension` files.
haskell-src-exts-sc library and program: Pretty print haskell code with comments
hkd-default library and test: Apply default value for optional field of HKD
HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.
I1M library and test: Code for the Haskell course taught at the University of Seville.
inilist library and test: Processing for .ini files with duplicate sections and options
io-embed library and test: Use Template Haskell to embed the result of an IO computation.
iterative-forward-search library and benchmark: An IFS constraint solver
katip-effectful library and test: Katip integration for Effectful
line-indexed-cursor library, test and benchmark: Line-indexed file reader.
log4hs library, test and benchmark: A python logging style log library
mini library: Minimal essentials
MultipletCombiner library and test: A Haskell implementation for combining SU(n) multiplets
newhope library, programs and test: Library implementing the NewHope cryptographic key-exchange protocol
orville-postgresql library and test: A Haskell library for PostgreSQL
par-dual library and test: ParDual class for Parallel <-> Sequential
pointedalternative library: Alternative done right
pollock library: Functionality to help examine Haddock information of a module.
polysemy-keyed-state library and test: Effect for a set of stateful values indexed by a type of keys
purview library and test: A simple, fun way to build websites
reddit-scrape library and test: Library for getting links from a sub-reddit
rfc library: Robert Fischer's Common library
riichi-scoring library, program and test: A CLI tool for interpreting and scoring Riichi Mahjong hands.
salak library, test and benchmark: Configuration (re)Loader and Parser.
salak-toml library, test and benchmark: Configuration Loader for toml
salak-yaml library, test and benchmark: Configuration Loader for yaml
scidb-hquery library and program: Haskell query for SciDB via shim
strongswan-sql library, program and test: Interface library for strongSwan SQL backend
tahoe-chk library, program and test: The Tahoe-LAFS' Content-Hash-Key (CHK) cryptographic protocol.
tahoe-directory library and test: Tahoe-LAFS directory-like abstraction for collections of data objects.
tahoe-ssk library, programs and test: An implementation of the Tahoe-LAFS SSK cryptographic protocols
tasty-grading-system library: Grade your tasty-testsuite.
tensor-safe library and program: Create valid deep neural network architectures
tensors library, test and benchmark: Tensor in Haskell
tonalude library and tests: A standard library for Tonatona framework.
tonaparser library, program and tests: Scalable way to pass runtime configurations for tonatona
tonatona library and tests: meta application framework
tonatona-google-server-api library and tests: tonatona plugin for google-server-api
tonatona-logger library and tests: tonatona plugin for logging.
tonatona-persistent-postgresql library and tests: tonatona plugin for accessing PostgreSQL database.
tonatona-persistent-sqlite library and tests: tonatona plugin for accessing Sqlite database.
tonatona-servant library and tests: tonatona plugin for servant.
vulkan-api library: Low-level low-overhead vulkan api bindings

LicenseManager

stratosphere-licensemanager library: Stratosphere integration for AWS LicenseManager.

Lightning

btc-lsp library, programs and test: Lightning service provider
clplug library and test: Easily add functionality to your lightning node
lnd-client library, program and test: Lightning Network Daemon (LND) client library for Haskell

Lightsail

stratosphere-lightsail library: Stratosphere integration for AWS Lightsail.

Lilypond

Aoide library and program: A simple music library that can generate Lilypond and MIDI files.

Linear Algebra

bed-and-breakfast library and test: Efficient Matrix and Vector operations in 100% Haskell.
lowlin library and test: Low dimensional linear algebra
nurbs library and test: NURBS

Linear Haskell

pure-borrow library, programs, tests and benchmark: Rust-style borrowing in Linear Haskell with purity

Linear Programming

simplex-method library and test: Implementation of the two-phase simplex method in exact rational arithmetic

LinearAlgebra

HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.
SmithNormalForm library: A lightweight Haskell implementation of Smith normal form over the integers.

Linguistics

ace library and test: Attempto Controlled English parser and printer
AlignmentAlgorithms library: Collection of alignment algorithms
brassica library, programs, tests and benchmarks: Featureful sound change applier
devanagari-transliterations library and test: Conversion between Devanagari Unicode, Harvard-Kyoto, IAST and ISO15919.
maxent-learner-hw library and program: Hayes and Wilson's maxent learning algorithm for phonotactic grammars.
maxent-learner-hw-gui program: GUI for maxent-learner-hw
sound-change library and test: Apply sound changes to words
WordAlignment library, program and test: Bigram word pair alignments.

Linnet

linnet library and test: Lightweight library for building HTTP API
linnet-aeson library and test: Aeson JSON support for Linnet
linnet-conduit library and test: Conduit-backed support for streaming in Linnet

Linux

aur library and test: Access metadata from the Arch Linux User Repository.
cabal-appimage library: Cabal support for creating AppImage applications
intel-powermon program: Poll modern Intel/AMD CPU power consumption on Linux via RAPL.
memfd library: Open temporary anonymous Linux file handles
sysinfo library and test: Haskell Interface for getting overall system statistics

Linux Desktop

greenclip program: Simple clipboard manager to be integrated with rofi

Lisp

axel library, program and test: The Axel programming language.

List

array-list library and tests: IsList instances of Array for OverloadedLists extension
data-ordlist library: Set and bag operations on ordered lists
do-list library, test and benchmark: Do notation for free
exotic-list-monads library and test: Non-standard monads on lists and non-empty lists
ilist library, test and benchmark: Optimised list functions for doing index-related things
lcs library: Find longest common sublist of two lists
list-duplicate library and test: Group and delete duplicates from a list
list-extras library: Common not-so-common functions for lists
list-filter library and test: Special takes and drops on lists
list-mux library: List Multiplexing
list-predicate library and test: Predicates on lists
ListLike library and test: Generalized support for list-like structures
listsafe library: Safe wrappers for partial list functions, supporting MonadThrow.
opentheory-stream library: Infinite stream types
ranged-list library and tests: The list like structure whose length or range of length can be specified
scroll-list library and test: This package provides functions for relocate an item within a list.
slist library and tests: Sized list
split library and test: Combinator library for splitting lists.
streamly library: Streaming data pipelines with declarative concurrency
streamly-core library: Streaming, parsers, arrays, serialization and more
utility-ht library and test: Various small helper functions for Lists, Maybes, Tuples, Functions

Little Game

click-clack program: Toy game (tetris on billiard board). Hipmunk in action.

Live Coding

essence-of-live-coding library, programs and test: General purpose live coding framework
essence-of-live-coding-gloss library: General purpose live coding framework - Gloss backend
essence-of-live-coding-gloss-example program: General purpose live coding framework - Gloss example
essence-of-live-coding-pulse library: General purpose live coding framework - pulse backend
essence-of-live-coding-pulse-example program: General purpose live coding framework - pulse backend example
essence-of-live-coding-quickcheck library: General purpose live coding framework - QuickCheck integration
essence-of-live-coding-warp library and test: General purpose live coding framework

Llama

llama-cpp-haskell library and program: Haskell bindings for the llama.cpp llama-server and a simple CLI

LLM

A-gent library: Polite & well educated LLM agent with excellent manners that always behaves well
claude library, programs and test: Servant bindings to Anthropic's Claude API
llama-cpp-haskell library and program: Haskell bindings for the llama.cpp llama-server and a simple CLI

Local Search

local-search library: Generalised local search within Haskell, for applications in combinatorial optimisation.
metaheuristics library: Generalised local search within Haskell, for applications in combinatorial optimisation.

Location

stratosphere-location library: Stratosphere integration for AWS Location.

Log

log4hs library, test and benchmark: A python logging style log library

Logger

boots-app library and program: Factory for quickly building an application

Logging

arbor-monad-logger library, program and test: Simple logging library
Blammo library and tests: Batteries-included Structured Logging library
Blammo-wai library and test: Using Blammo with WAI
co-log library, programs and tests: Composable Contravariant Comonadic Logging Library
co-log-concurrent library: Asynchronous backend for co-log library
co-log-core library and test: Composable Contravariant Comonadic Logging Library
co-log-effectful library and test: effectful log effect using co-log-core
co-log-polysemy library and program: Composable Contravariant Comonadic Logging Library
co-log-polysemy-formatting library and program: A Polysemy logging effect for high quality (unstructured) logs.
co-log-simple library and program: Simple enhancements for logging with co-log
co-log-sys library and test: Syslog implementation on top of 'co-log-core'
contra-tracer library and test: Arrow and contravariant tracers
contra-tracers library: ...
datadog-tracing library, programs and test: Datadog tracing client and mock agent.
df1 library and test: Type, render and parse the df1 hierarchical structured log format
df1-html library and test: Render and parse df1 logs as HTML
df1-wai library: Df1 log formatting for WAI requests and responses
di library: Typeful hierarchical structured logging using di, mtl and df1.
di-core library and test: Typeful hierarchical structured logging without monad towers.
di-df1 library and test: Write logs in the df1 format using the di logging framework
di-handle library: IO support for file handles in di-core
di-monad library: mtl flavoured typeful hierarchical structured logging for di-core.
di-polysemy library: DI logger wrapped for Polysemy
di-wai library: Di logging for WAI requests and responses
easy-logger library and test: Logging made easy.
graflog library and test: Monadic correlated log events
greg-client library: A scalable distributed logger with a high-precision global time axis.
HLogger library and program: Simple, concurrent and easy-to-use logging library
hlogger library: Simple, concurrent, extendable and easy-to-use logging library
hs-opentelemetry-instrumentation-co-log library and test: Bridge co-log to OpenTelemetry Logs
hs-opentelemetry-instrumentation-katip library and test: Bridge Katip structured logging to OpenTelemetry Logs
hs-opentelemetry-instrumentation-monad-logger library and test: Bridge monad-logger to OpenTelemetry Logs
hsmisc library and test: A collection of miscellaneous modules
ihp-log library: Lightweight logging for IHP applications
katip library, test and benchmark: A structured logging framework.
katip-datadog library and test: Datadog scribe for the Katip logging framework
katip-effectful library and test: Katip integration for Effectful
katip-elasticsearch library, test and benchmark: ElasticSearch scribe for the Katip logging framework.
katip-kafka library: Katip scribe to send logs to Kafka
katip-logstash library: Logstash backend for katip.
katip-logzio library and test: Logz.IO scribe for the Katip logging framework
katip-rollbar library: Katip scribe that logs to Rollbar
katip-scalyr-scribe library and test: A katip scribe for logging to json
katip-wai library and test: WAI middleware for logging request and response info through katip.
lager library and test: Concurrent logging
libsystemd-journal library: Haskell bindings to libsystemd-journal
little-logger library and test: Basic logging based on monad-logger
located-monad-logger library: Location-aware logging without Template Haskell
log-effect library and program: An extensible log effect using extensible-effects
log-effect-syslog library: Syslog functions for log-effect
log-warper library, programs and test: Flexible, configurable, monadic and pretty logging
log2json library and program: Turn log file records into JSON.
log4hs library, test and benchmark: A python logging style log library
lumberjack library and program: Trek through your code forest and make logs
monad-logger-json library: JSON-friendly Logging APIs
monad-logger-syslog library: syslog output for monad-logger
om-logging library: Opinionated logging utilities.
plow-log library: Contravariant logging library
plow-log-async library: Async IO tracer for plow-log
polysemy-log library, test and benchmark: Polysemy effects for logging
polysemy-log-co library and test: Colog adapters for polysemy-log
polysemy-log-di library and test: Di adapters for polysemy-log
raven-haskell library and test: Haskell client for Sentry logging service.
rollbar library: error tracking through rollbar.com
rotating-log library and test: Size-limited, concurrent, automatically-rotating log writer.
SessionLogger library: Easy Loggingframework
simple-log library and test: Simple log for Haskell
simple-log-syslog library: Syslog backend for simple-log
simple-logger library: A very simple but efficient logging framework
simple-logging library and test: Logging effect to plug into the simple-effects framework
trifecta library and test: A modern parser combinator library with convenient diagnostics
tslogger library: Thread-safe logging, with additional interleaving fuzz-testing.
wai-log library: A logging middleware for WAI applications
yesod-katip library: Logging bridge between Yesod and Katip
yet-another-logger library, program and test: Yet Another Logger

Logic

AC-Boolean library: Handle Boolean values generatically.
atp library and tests: Interface to automated theorem provers
atp-haskell library and test: Translation from Ocaml to Haskell of John Harrison's ATP code
cond library: Basic conditional and boolean operators with monadic variants.
decision-diagrams library and tests: Binary Decision Diagrams (BDD) and Zero-suppressed Binary Decision Diagrams (ZDD)
ersatz library, programs and tests: A monad for expressing SAT or QSAT problems using observable sharing.
ersatz-toysat library and programs: toysat driver as backend for ersatz
expressions library and test: Expressions and Formulae a la carte
expressions-z3 library and test: Encode and Decode expressions from Z3 ASTs
g4ip library and test: A theorem prover for propositional logic that uses G4ip
g4ip-prover library, program and test: Theorem prover for intuitionistic propositional logic using G4ip
GenZ library, programs, test and benchmarks: Generic Sequent Calculus Prover using the Zipper
hasmtlib library: A monad for interfacing with external SMT solvers
hatt library, program and test: A truth table generator for classical propositional logic.
hol library, program, test and benchmark: Higher order logic
hout library and test: Non-interactive proof assistant monad for first-order logic.
hypertypes library, test and benchmark: Typed ASTs
judge library and program: Tableau-based theorem prover for justification logic.
jukebox library and program: A first-order reasoning toolbox
logic-classes library and test: Framework for propositional and first order logic, theorem proving
LogicGrowsOnTrees library, programs, tests and benchmarks: a parallel implementation of logic programming using distributed tree exploration
LogicGrowsOnTrees-MPI library and programs: an adapter for LogicGrowsOnTrees that uses MPI
LogicGrowsOnTrees-network library, programs and test: an adapter for LogicGrowsOnTrees that uses multiple processes running in a network
LogicGrowsOnTrees-processes library, programs, test and benchmark: an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism
minisat library: A Haskell bundle of the Minisat SAT solver
minisat-solver library and benchmarks: High-level Haskell bindings for the MiniSat SAT solver.
obdd library and tests: Ordered Reduced Binary Decision Diagrams
picologic library, program and tests: Utilities for symbolic predicate logic expressions
picosat library and tests: Bindings to the PicoSAT solver
PropLogic library and program: Propositional Logic
pseudo-boolean library and test: Reading/Writing OPB/WBO files used in pseudo boolean competition
RSolve library, program and test
satchmo library and tests: SAT encoding monad
satchmo-toysat library: toysat driver as backend for satchmo
satplus library: Useful functions when programming with a SAT-solver
smcdel library, programs, tests and benchmarks: Symbolic Model Checking for Dynamic Epistemic Logic
streamly library: Streaming data pipelines with declarative concurrency
streamly-core library: Streaming, parsers, arrays, serialization and more
structural-induction library and test: Instantiate structural induction schemas for algebraic data types
term-rewriting library and test: Term Rewriting Library
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
tpdb library, programs and tests: Data Type for Rewriting Systems
unification-fd library: Simple generic unification algorithms.
zsyntax library and test: Automated theorem prover for the Zsyntax biochemical calculus

Logic Programming

clingo library and programs: Haskell bindings to the Clingo ASP solver
souffle-dsl library and test: Haskell EDSL for Souffle
souffle-haskell library, test and benchmark: Souffle Datalog bindings for Haskell
unique-logic library and test: Solve simple simultaneous equations
unique-logic-tf library and test: Solve simple simultaneous equations

Logs

stratosphere-logs library: Stratosphere integration for AWS Logs.

Logstash

hslogstash library and test: A library to work with, or as, a logstash server

LookoutEquipment

stratosphere-lookoutequipment library: Stratosphere integration for AWS LookoutEquipment.

LookoutMetrics

stratosphere-lookoutmetrics library: Stratosphere integration for AWS LookoutMetrics.

LookoutVision

stratosphere-lookoutvision library: Stratosphere integration for AWS LookoutVision.

LruCache

lrucaching-haxl library: Combine lrucaching and haxl.

LUA

lua-bytecode library: Library for loading Lua bytecode.

M2

stratosphere-m2 library: Stratosphere integration for AWS M2.

Machine Learning

ad-delcont library and test: Reverse-mode automatic differentiation with delimited continuations
affine-invariant-ensemble-mcmc library: General-purpose sampling
agda2train library and program: Agda backend to generate training data for machine learning purposes.
conala-dataset library and test: bindings to the CoNaLa dataset
datasets library, test and benchmark: Classical data sets for statistics and machine learning
dtw library and test: (Fast) Dynamic Time Warping
eigen-hhlo library, programs and test: Dense linear algebra on HHLO (SVD, QR, eigenvalue, Cholesky, LU)
ephemeral library: See readme.md
fei-base library and program: FFI to MXNet
fei-cocoapi library and program: Cocodataset with cocoapi
fei-dataiter library, program and tests: mxnet dataiters
fei-datasets library and programs: Some datasets
fei-examples programs: fei examples
fei-modelzoo library: A collection of standard models
fei-nn library: Train a neural network with MXNet in Haskell.
genetics program: A Genetic Algorithm library
grenade library, test and benchmarks: Practical Deep Learning in Haskell
gym-hs library, program and test: Haskell bindings for OpenAI Gymnasium
hanalyze library and test: A general-purpose statistical analysis, optimization and visualization toolkit
hanalyze-bayes library: Bayesian layer of hanalyze: HBM DSL, MCMC samplers, model comparison
hanalyze-cli program: hanalyze command-line interface for the hanalyze toolkit
hanalyze-core library: Bottom layer of hanalyze: stats, tests, optimisation, MCMC core
hanalyze-design library: Design-of-experiments layer of hanalyze (DoE / MSA)
hanalyze-frame library: Data I/O layer of hanalyze: loaders, cleaning, tidy wrangling
hanalyze-models library: Model layer of hanalyze: regression, ML, survival, causal
hanalyze-plot library and test: Static-plot integration for hanalyze (toPlot / Plottable)
hanalyze-viz library: Vega-Lite visualization and HTML report layer of hanalyze
haskell-ml library, program and test: Machine learning in Haskell
hasktorch-codegen library, program and test: Code generation tools for Hasktorch
hasktorch-ffi-tests library: Testing library for Hasktorch's FFI bindings
hasktorch-ffi-th library and test: Bindings to Torch
hasktorch-ffi-thc library and test: Bindings to Cutorch
hasktorch-indef library and test: Core Hasktorch abstractions wrapping FFI bindings
hasktorch-signatures library and programs: Backpack signatures for Tensor operations
hasktorch-signatures-partial library: Functions to partially satisfy tensor signatures
hasktorch-signatures-support library: Signatures for support tensors in hasktorch
hasktorch-signatures-types library: Core types for Hasktorch backpack signatures
hasktorch-types-th library: C-types for Torch
hasktorch-types-thc library: C-types for Cutorch
hasktorch-zoo library: Neural architectures in hasktorch
hhlo library, programs and test: Haskell Frontend for StableHLO — type-safe ML training/inference on CPU and GPU
HLearn-algebra library: Algebraic foundation for homomorphic learning
HLearn-approximation library
HLearn-classification library
HLearn-datastructures library
HLearn-distributions library: Distributions for use with the HLearn library
HMM library: A hidden markov model library
hmm library: A hidden markov model library
hopfield library, programs and test: Hopfield Networks, Boltzmann Machines and Clusters
horde-ad library, tests and benchmarks: Higher Order Reverse Derivatives Efficiently - Automatic Differentiation
hs-onnxruntime-capi library: Low-level bindings for ONNX Runtime
htvm library and test: Bindings for TVM machine learning framework
KdTree library and test: KdTree, for efficient search in K-dimensional point clouds.
LambdaNet library: A configurable and extensible neural network library
Learning library, programs and test: The most frequently used machine learning tools
learning-hmm library: Yet another library for hidden Markov models
llama-cpp-haskell library and program: Haskell bindings for the llama.cpp llama-server and a simple CLI
mcmc-samplers library: Combinators for MCMC sampling
menoh library, programs and test: Haskell binding for Menoh DNN inference library
mnist-idx-conduit library and test: conduit utilities for MNIST IDX files
multilinear library, tests and benchmarks: Comprehensive and efficient (multi)linear algebra implementation.
multilinear-io library, tests and benchmark: Conduit-based input/output capability for multilinear package.
mxnet library and test: MXNet interface in Haskell.
mxnet-dataiter library and tests: mxnet dataiters
mxnet-examples programs: Examples for MXNet in Haskell.
mxnet-nn library and program: Train a neural network with MXNet in Haskell.
mxnet-nnvm library: NNVM interface in Haskell.
neural library, programs, tests and benchmark: Neural Networks in native Haskell
perceptron library: The perceptron learning algorithm.
rc library, program and test: Reservoir Computing, fast RNNs
record-encode library and tests: Generic encoding of records
rl-satton library and program: Collection of Reinforcement Learning algorithms
rp-tree library, program, test and benchmark: Random projection trees
sibe library and programs: Machine Learning algorithms
tensorflow library and tests: TensorFlow bindings.
tensorflow-core-ops library: Haskell wrappers for Core Tensorflow Ops.
tensorflow-logging library and test: TensorBoard related functionality.
tensorflow-mnist library, program and test: TensorFlow demo application for learning MNIST model.
tensorflow-opgen library: Code generation for TensorFlow operations.
tensorflow-ops library, tests and benchmark: Friendly layer around TensorFlow bindings.
tensorflow-proto library: TensorFlow protocol buffers.
tensorflow-records library and test: Encoder and decoder for the TensorFlow \"TFRecords\" format.
tensorflow-records-conduit library: Conduit wrappers for TensorFlow.Records.
tensorflow-test library: Some common functions for test suites.
vp-tree library, test and benchmark: Vantage Point Trees

Machine Vision

CV library: OpenCV based machine vision library
opencv-raw library: Raw Haskell bindings to OpenCV >= 2.0
simple-firewire library: Simplified interface for firewire cameras

Machine-learning

ngram library and program: Ngram models for compressing and classifying text.

Machines

crem library, programs and tests: Compositional representable executable machines
machines-bytestring library: ByteString support for machines
machines-zlib library: Decompression support for machines

Macie

stratosphere-macie library: Stratosphere integration for AWS Macie.

Macros

axel library, program and test: The Axel programming language.

Mail

hailgun-simple library: Easy-to-use wrapper for the hailgun package
list-remote-forwards program: List all remote forwards for mail accounts stored in a SQL database.
mail-reports library: A parser library for DMARC and SMTP TLS reports
mailbox-count program: Count mailboxes in a SQL database
mailchimp-subscribe program: MailChimp subscription request handler

Managed Functions

haskell-admin-managed-functions library and test: Managed Functions integration for Haskell Admin

ManagedBlockchain

stratosphere-managedblockchain library: Stratosphere integration for AWS ManagedBlockchain.

Manatee

manatee library and program: The Haskell/Gtk+ Integrated Live Environment
manatee-all library and program: Virtual package to install all Manatee packages.
manatee-anything library and program: Multithread interactive input/search framework for Manatee
manatee-browser library and program: Browser extension for Manatee.
manatee-core library: The core of Manatee.
manatee-curl library and program: Download Manager extension for Manatee.
manatee-editor library and program: Editor extension for Manatee.
manatee-filemanager library and program: File manager extension for Manatee.
manatee-imageviewer library and program: Image viewer extension for Manatee.
manatee-ircclient library and programs: IRC client extension for Manatee.
manatee-mplayer library and programs: Mplayer client extension for Manatee.
manatee-pdfviewer library and program: PDF viewer extension for Manatee.
manatee-processmanager library and program: Process manager extension for Manatee.
manatee-reader library and program: Feed reader extension for Manatee.
manatee-template library and program: Template code to create Manatee application.
manatee-terminal library and program: Terminal Emulator extension for Manatee.
manatee-welcome library and program: Welcome module to help user play Manatee quickly.

Map

olwrapper library and program: An OpenLayers JavaScript Wrapper and Webframework with snaplet-fay

MapReduce

compressed library: Compressed containers and reducers
hadoop-streaming library and test: A simple Hadoop streaming library

Markdown

hakyll-shortcut-links library and test: Use shortcut-links in markdown file for Hakyll
shortcut-links library and test: Link shortcuts for use in text markup

Math

AC-Angle library: Angles in degrees and radians.
AC-Boolean library: Handle Boolean values generatically.
AC-Colour library: Efficient RGB colour types.
AC-HalfInteger library: Efficient half-integer type.
AC-Terminal library: Trivial wrapper over ansi-terminal.
AC-Vector library: Efficient geometric vectors and transformations.
AC-Vector-Fancy library: Fancy type-system stuff for AC-Vector
accelerate-arithmetic library and test: Linear algebra and interpolation using the Accelerate framework
accelerate-blas library, tests and benchmarks: Numeric Linear Algebra in Accelerate
accelerate-cublas library, program and benchmark: Basic Linear Algebra using native CUBLAS library
accelerate-cufft library and programs: Accelerate frontend to the CUFFT library (Fourier transform)
accelerate-fft library and tests: FFT using the Accelerate library
accelerate-fftw library: Accelerate frontend to the FFTW library (Fourier transform)
accelerate-fourier library, test and benchmark: Fast Fourier transform and convolution using the Accelerate framework
accelerate-fourier-benchmark program: Compare different implementations of the Fast Fourier Transform
accelerate-typelits library and test: a typesafe way encode accelerate matrices and vectors
acts library: Semigroup actions and torsors.
ad library, test and benchmark: Automatic Differentiation
ad-delcont library and test: Reverse-mode automatic differentiation with delimited continuations
adjunction library, test and benchmark: See README for more info
AERN-Basics library and program: foundational type classes for approximating exact real numbers
AERN-Net library: Compositional lazy dataflow networks for exact real number computation
AERN-Real library: arbitrary precision real interval arithmetic
AERN-Real-Double library and programs: arbitrary precision real interval arithmetic
AERN-Real-Interval library: arbitrary precision real interval arithmetic
AERN-RnToRm library: polynomial function enclosures (PFEs) approximating exact real functions
AERN-RnToRm-Plot library: GL plotting of polynomial function enclosures (PFEs)
aern2-fun library: Generic operations for real functions
aern2-mfun library and program: Multi-variate real function optimisation and proving
aern2-mp library and test: Multi-precision ball (interval) arithmetic
aern2-real library and test: Real numbers as convergent sequences of intervals
affine library: Affine spaces (generalized)
aftovolio library and programs: ...
alg library: Algebraic structures
algebra library: Constructive abstract algebra
algebraic library: General linear algebra structures.
algebraic-classes library: Conversions between algebraic classes and F-algebras.
antimirov library and program: Define the language containment (=subtyping) relation on regulare expressions.
apportionment library and test: Round a set of numbers while maintaining its sum
ApproxFun-hs library: Function approximation
arb-fft library, program and test: Pure Haskell arbitrary length FFT library
arithmatic library: do things with numbers
arithmoi library, test and benchmarks: Efficient basic number-theoretic functions.
arrayfire library, programs and tests: Haskell bindings to the ArrayFire general-purpose GPU library
atp library and tests: Interface to automated theorem provers
atrophy library, test and benchmark: Faster integer division and modulus operations
automata library and test: automata
backprop library and benchmark: Heterogeneous automatic differentation
Baggins library: Tools for self-assembly
battleship-combinatorics library, program and test: Compute number of possible arrangements in the battleship game
bayes-stack library: Framework for inferring generative probabilistic models with Gibbs sampling
bed-and-breakfast library and test: Efficient Matrix and Vector operations in 100% Haskell.
BerlekampAlgorithm library: Factorization of polynomials over finite field
besout library: Extended GCD of polynomials over F_p[x]
BesselJ library and test: Bessel J-function, Anger J-function, Weber E-function, and Anger-Weber function.
bin library: Bin: binary natural numbers.
bindings-mpdecimal library: bindings to mpdecimal library
bindings-saga-cmd library and programs: Wrapping saga_cmd
bins library: Aggregate continuous values into discrete bins
blas library: Bindings to the BLAS library
blas-carray library: Auto-generated interface to Fortran BLAS via CArrays
blas-comfort-array library: Auto-generated interface to Fortran BLAS via comfort-array
blas-ffi library and program: Auto-generated interface to Fortran BLAS
blas-hs library and test: Low-level Haskell bindings to Blas.
boltzmann-brain library and program: Analytic sampler compiler for combinatorial systems.
boolector library and tests: Haskell bindings for the Boolector SMT solver
boolsimplifier library: Simplification tools for simple propositional formulas.
braid library and program: Types and functions to work with braids and Khovanov homology.
buffon library: An implementation of Buffon machines.
buffon-machines library: Perfect simulation of discrete random variables
burst-detection library, test and benchmark: Burst detection algorithms
ca library: Cellular Automata
caffegraph library
cal-layout library and program: Calendar Layout Algorithm
calculator program and test: A calculator repl, with variables, functions & Mathematica like dynamic plots.
caldims library and program: Calculation tool and library supporting units
calendar-recycling program: List years with the same calendars
canon library: Arithmetic for Psychedelically Large Numbers
Cartesian library: Coordinate systems
casadi-bindings library and tests: mid-level bindings to CasADi
casadi-bindings-control library: low level bindings to casadi-control
casadi-bindings-core library: autogenerated low level bindings to casadi
casadi-bindings-internal library: low level bindings to CasADi
casadi-bindings-ipopt-interface library: low level bindings to casadi-ipopt_interface
casadi-bindings-snopt-interface library: low level bindings to casadi-snopt_interface
cash library: the Computer Algebra SHell
casui program: Equation Manipulator
category library: Categorical types and classes
category-traced library: Traced monoidal categories
cayley-dickson library and test: Complex numbers, quaternions, octonions, sedenions, etc.
cf library and test: Exact real arithmetic using continued fractions
checksum library: Compute and verify checksums of ISBN, IBAN, etc.
circular library, test and benchmark: Circular fixed-sized mutable vectors
cl3 library, test and benchmarks: Clifford Algebra of three dimensional space.
cl3-hmatrix-interface library: Interface to/from Cl3 and HMatrix.
cl3-linear-interface library: Interface to/from Cl3 and Linear.
cl3-posit library and test: Clifford Algebra of three dimensional space, implemented with Posit numbers.
clac program: Simple CLI RPN calculator
clif library, test and benchmark: A Clifford algebra number type for Haskell
clifford library, program, test and benchmark: A Clifford algebra library
closure library: Depth- and breadth-first set closures
clumpiness library: Calculate the clumpiness of leaf properties in a tree
clustering library, test and benchmark: High performance clustering algorithms
cmath library: A binding to the standard C math library
coincident-root-loci library and test: Equivariant CSM classes of coincident root loci
coinor-clp library and test: Linear Programming using COIN-OR/CLP and comfort-array
collect-errors library: Error monad with a Float instance
combinat library and test: Generate and manipulate various combinatorial objects.
combinat-compat library and test: Generate and manipulate various combinatorial objects.
combinat-diagrams library: Graphical representations for various combinatorial objects
combinatorial library and test: Count, enumerate, rank and unrank combinatorial objects
combinatorics library: Efficient computation of common combinatoric functions.
comfort-blas library and test: Numerical Basic Linear Algebra using BLAS
comfort-fftw library and test: High-level interface to FFTW (Fast Fourier Transform) based on comfort-array
comfort-glpk library and test: Linear Programming using GLPK and comfort-array
commutative-semigroups library: Commutative semigroups
complex-generic library: complex numbers with non-mandatory RealFloat
complex-integrate library: A simple integration function to integrate a complex-valued complex functions
computational-algebra library, programs, tests and benchmarks: Well-kinded computational algebra library, currently supporting Groebner basis.
computational-geometry library: Collection of algorithms in Computational Geometry.
conjugateGradient library: Sparse matrix linear-equation solver
connections library, program and test: Orders, Galois connections, and lattices.
constructible library: Exact computation with constructible real numbers
constructive-algebra library: A library of constructive algebra.
ContextAlgebra program: Implementation of the context algebra.
continued-fraction library, test and benchmark: Types and functions for working with continued fractions in Haskell
continued-fractions library and test: Continued fractions.
converge library: Limit operations for converging sequences
convert-units library, test and benchmark: Statically typed unit conversions
convexHullNd library: Convex hull
countdown-numbers-game program and test: Solve problems from the number round of the Countdown game show
covariance library and test: Well-conditioned estimation of large-dimensional covariance matrices
coya library: Coya monoids
cplex-hs library: high-level CPLEX interface
crf-chain1 library: First-order, linear-chain conditional random fields
crf-chain1-constrained library: First-order, constrained, linear-chain conditional random fields
crf-chain2-generic library: Second-order, generic, constrained, linear conditional random fields
cubicspline library: Natural cubic spline interpolation.
curve25519 library and test: Fast implementations of the curve25519 elliptic curve primitives.
cyclotomic library and test: A subfield of the complex numbers for exact calculation.
Data-Angle library: Geometric angles
data-category library: Category theory
data-interval library and test: Interval datatype, interval arithmetic and interval-based containers
data-nat library: data Nat = Zero | Succ Nat
dde library, programs, test and benchmark: Delay differential equations
Decimal library and test: Decimal numbers with variable precision
decimal-literals library and test: Preprocessing decimal literals more or less as they are (instead of via fractions)
declarative library and test: DIY Markov Chains.
deeplearning-hs library, program and test: Deep Learning in Haskell
deka library: Decimal floating point arithmetic
deka-tests library, program and test: Tests for deka, decimal floating point arithmetic
delaunayNd library: Delaunay tessellation
dense-linear-algebra library and test: Simple and incomplete pure haskell implementation of linear algebra
derivation-trees library: Typeset Derivation Trees via MetaPost
detour-via-sci library and tests: JSON and CSV encoding for rationals as decimal point numbers.
detour-via-uom library and tests: JSON and CSV encoding for quantities.
dfrac library: A package for precise decimal arithmatic using rationals.
diagrams-solve library and test: Pure Haskell solver routines used by diagrams
DifferenceLogic library: A theory solver for conjunctions of literals in difference logic
digamma library: A (deprecated) implementation of the digamma function
DigitGroup library: Group the digits of numbers by lots
dimensional library, test and benchmark: Statically checked physical dimensions
dimensional-tf library: Statically checked physical dimensions, implemented using type families.
dimensions library and test: Safe type-level dimensionality for multidimensional data.
diophantine library: A quadratic diophantine equation solving library.
directed-cubical library: Finite directed cubical complexes and associated algorithms
dirichlet library and test: Multivariate Dirichlet distribution
Dist library and test: A Haskell library for probability distributions
DistanceTransform library and test: Distance transform function.
distribution library: Finite discrete probability distributions.
distribution-plot library: Easily plot distributions from the distribution package..
downhill library and test: Reverse mode automatic differentiation
dozenal library: A Haskell library for using Dozenal (Duodecimal - Base 12) numbers.
DP library: Pragmatic framework for dynamic programming
dsp library, programs and test: Haskell Digital Signal Processing
dual library: Dual category
dumb-cas library and test: A computer “algebra” system that knows nothing about algebra, at the core.
dvda library and test: Efficient automatic differentiation and code generation
dyckword library and test: A library for working with binary Dyck words.
earcut library: Binding to C++ earcut library.
ease library: Robert Penner's easing equations
easyplot library: A tiny plotting library, utilizes gnuplot for plotting.
easytensor library, test and benchmarks: Pure, type-indexed haskell vector, matrix, and tensor library.
easytensor-vulkan library: Use easytensor with vulkan-api.
egyptian-fractions library: Egyptian fractions in Haskell
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
eigen-hhlo library, programs and test: Dense linear algebra on HHLO (SVD, QR, eigenvalue, Cholesky, LU)
elbow library: Find the elbow point.
elliptic-integrals library and test: Carlson Elliptic Integrals and Incomplete Elliptic Integrals
emd library, test and benchmark: Empirical Mode Decomposition and Hilbert-Huang Transform
Eq program: Render math formula in ASCII, and perform some simplifications
EqualitySolver library: ...
equational-reasoning library: Proof assistant for Haskell using DataKinds & PolyKinds
equational-reasoning-induction library: Proof assistant for Haskell using DataKinds & PolyKinds
erf library: The error function, erf, and related functions.
erf-native library: Native Haskell implementation of the interface from the erf package
estimator library: State-space estimation algorithms such as Kalman Filters
euler library and test: Mathematics utilities for Haskell
exact-combinatorics library: Efficient exact computation of combinatoric functions.
exact-cover library, program and test: Efficient exact cover solver.
exact-kantorovich library and test: Exact Kantorovich distance between finite probability measures.
exact-real library, tests and benchmark: Exact real arithmetic
exact-real-positional library: Framework for Exact Real Arithmetic in the Positional Number System
exchangealgebra library and tests: Exchange Algebra for bookkeeping and economic simulation
exp-pairs library, test and benchmarks: Linear programming over exponent pairs
explicit-determinant library: explicit computation of determinant of small matrices
expressions library and test: Expressions and Formulae a la carte
expressions-z3 library and test: Encode and Decode expressions from Z3 ASTs
extended-categories library: Extended Categories
extended-reals library and test: Extension of real numbers with positive/negative infinities
factory library, program and test: Rational arithmetic in an irrational world.
fad library: Forward Automatic Differentiation.
fadno-braids library: Braid representations in Haskell
fast-arithmetic library, test and benchmark: Fast functions on integers.
fast-math library: Non IEEE-754 compliant compile-time floating-point optimisations
fft library and test: Bindings to the FFTW library.
fftw-ffi library and program: Low-level interface to FFTW (Fast Fourier Transform)
fftwRaw library: Low level bindings to FFTW.
fib library: fibonacci algebra
fin library and test: Nat and Fin: peano naturals and finite numbers
find-clumpiness library and program: Find the clumpiness of labels in a tree
finite-field library and test: Finite Fields
finite-fields library and test: Arithmetic in finite fields
finite-semigroups library and test: Operations and classification for finite semigroups
FirstOrderTheory library: Grammar and typeclass for first order theories
fixed-point library: Binary fixed-point arithmetic
fixed-point-vector library: Unbox instances for the fixed-point package
fixed-point-vector-space library: vector-space instances for the fixed-point package
fixed-precision library: Fixed Precision Arithmetic
fixedprec library: A fixed-precision real number type
fizz-buzz library: Functional Fizz/Buzz
flat-mcmc library and tests: Painless general-purpose sampling.
Flint2 library and test: Haskell bindings for the flint library for number theory
Flint2-Examples programs and test: Examples for the Flint2 library
float128 library: FFI bindings for C _Float128
foldl-statistics library, test and benchmark: Statistical functions from the statistics package implemented as Folds.
fp-ieee library, tests and benchmark: IEEE 754-2019 compliant operations
fplll library and test: Haskell bindings to <https://fplll.github.io/fplll/ fplll>
fpnla library: A library for NLA operations
fpnla-examples library and tests: Example implementations for FPNLA library
fptest programs and tests: IEEE754r floating point conformance tests
fractals library and test: A collection of useful fractal curve encoders
fractionizer library: Numbers in the range [0.005, 1] as a sum of 2, 3, 4 or 5 unit fractions of special types.
free-functors library: Free functors, adjoint to functors that forget class constraints.
free-vector-spaces library: Instantiate the classes from the vector-space package with types from linear
frotate program and test: Advanced rotation of backups and other things
function-instances-algebra library: Instances of the Algebra.* classes for functions
functor library: Functors
fuzzySets library and test: A Haskell library for working with fuzzy sets and fuzzy relations.
game-probability library: Simple probability library for dice rolls, card games and similar
gamma library and test: Gamma function and related functions.
garepinoh library and programs: reverse prefix notation calculator and calculation library
GaussQuadIntegration library: Non-adaptive Gaussian quadrature for numeric integraton
geocalc library: Libary for calculating distances between two coordinates in WSG84
geom2d library and tests: package for geometry in euklidean 2d space
GeomPredicates library: Geometric predicates
GeomPredicates-SSE library: Geometric predicates (Intel SSE)
ghc-typelits-presburger library, program and test: Presburger Arithmetic Solver for GHC Type-level natural numbers.
glasso library: Graphical Lasso algorithm
glicko library and test: Glicko-2 implementation in Haskell.
glpk-headers library and test: Low-level Haskell bindings to the GLPK library
glpk-hs library and program: Comprehensive GLPK linear programming bindings
gnuplot library and program: 2D and 3D plots using gnuplot
goal-core library and benchmarks: Common, non-geometric tools for use with Goal
goal-geometry library: The basic geometric type system of Goal
goal-graphical library and benchmark: Optimization of latent variable and dynamical models with Goal
goal-probability library and benchmarks: Optimization on manifolds of probability distributions with Goal
goal-simulation library and programs: Mealy based simulation tools
gray-extended library and test: Gray encoding schemes
grid library and test: Tools for working with regular grids (graphs, lattices).
group-theory library: The theory of groups
groups library: Groups
groups-generic library: Generically derive Group instances.
gsl-random library: Bindings the the GSL random number generation facilities.
gsl-random-fu library: Instances for using gsl-random with random-fu
gutenberg-fibonaccis library: The first 1001 Fibonacci numbers, retrieved from the Gutenberg Project.
haar library and test: Haar wavelet transforms
HABQT library, program and test: Hierarchical adaptive Bayesian quantum tomography for quantum bits
hahp library and program: Analytic Hierarchy Process
half-space library: Additive monoids generalising vector spaces
hanalyze library and test: A general-purpose statistical analysis, optimization and visualization toolkit
hanalyze-bayes library: Bayesian layer of hanalyze: HBM DSL, MCMC samplers, model comparison
hanalyze-cli program: hanalyze command-line interface for the hanalyze toolkit
hanalyze-core library: Bottom layer of hanalyze: stats, tests, optimisation, MCMC core
hanalyze-design library: Design-of-experiments layer of hanalyze (DoE / MSA)
hanalyze-frame library: Data I/O layer of hanalyze: loaders, cleaning, tidy wrangling
hanalyze-models library: Model layer of hanalyze: regression, ML, survival, causal
hanalyze-plot library and test: Static-plot integration for hanalyze (toPlot / Plottable)
hanalyze-viz library: Vega-Lite visualization and HTML report layer of hanalyze
harpie library and program: Haskell array programming.
harpie-numhask library: numhask shim for harpie.
HasBigDecimal library, programs and test: A library for arbitrary precision decimal numbers.
hascal library and program: tiny calculator library and command-line program
haskell-eigen-util library and test: Some utility functions for haskell-eigen library
haskell-igraph library and test: Bindings to the igraph C library (v0.8.5).
haskell-mpfr library: Correctly-rounded arbitrary-precision floating-point arithmetic
HaskellForMaths library: Combinatorics, group theory, commutative algebra, non-commutative algebra
HaskellLM library: Pure Haskell implementation of the Levenberg-Marquardt algorithm
hbayes library and test: Bayesian Networks
hbayesian library, programs and test: Composable Bayesian inference in Haskell on StableHLO/XLA
hblas library and test: Human friendly BLAS and Lapack bindings for Haskell.
hcg-minus library: haskell cg (minus)
hcg-minus-cairo library: haskell cg (minus) (cairo rendering)
hdr-histogram library, test and benchmark: Haskell implementation of High Dynamic Range (HDR) Histograms
HERA library
HerbiePlugin library and tests: automatically improve your code's numeric stability
heyting-algebras library and test: Heyting and Boolean algebras
hgeometric library: A geometric library with bindings to GPC.
hieraclus library: Automated clustering of arbitrary elements in Haskell.
highs-lp library and test: Linear Programming using HiGHS and comfort-array
hirt program: Calculates IRT 2PL and 3PL models
hlbfgsb library and test: Haskell binding to L-BFGS-B version 3.0
hmatrix library: Numeric Linear Algebra
hmatrix-backprop library and test: hmatrix operations lifted for backprop
hmatrix-banded library: HMatrix interface to LAPACK functions for banded matrices
hmatrix-glpk library: Linear Programming based on GLPK
hmatrix-gsl library: Numerical computation
hmatrix-gsl-stats library: GSL Statistics interface
hmatrix-mmap library: Memory map Vector from disk into memory efficiently
hmatrix-morpheus library, test and benchmark: Low-level machine learning auxiliary functions.
hmatrix-nipals library and program: NIPALS method for Principal Components Analysis on large data-sets.
hmatrix-quadprogpp library: Bindings to the QuadProg++ quadratic programming library
hmatrix-repa library: Adaptors for interoperability between hmatrix and repa
hmatrix-sparse library: Sparse linear solver
hmatrix-special library: Interface to GSL special functions
hmatrix-static library: hmatrix with vector and matrix sizes encoded in types
hmatrix-sundials library, test and benchmark: hmatrix interface to sundials
hmatrix-svdlibc library, test and benchmark: SVDLIBC bindings for HMatrix
hmatrix-syntax library: MATLAB-like syntax for hmatrix vectors and matrices
hmatrix-tests library, tests and benchmark: Tests for hmatrix
hmatrix-vector-sized library and test: Conversions between hmatrix and vector-sized types
hmm-hmatrix library and test: Hidden Markov Models using HMatrix primitives
hmm-lapack library and test: Hidden Markov Models using LAPACK primitives
hmpfr library: Haskell binding to the MPFR library
homeomorphic library: Homeomorphic Embedding Test
Homology library: Compute the homology of a chain complex
hopfield-networks library, program and test: Hopfield Networks for unsupervised learning in Haskell
hops library, program and tests: Handy Operations on Power Series
hps-kmeans library: A nice implementation of the k-Means algorithm.
HQu library, tests and benchmark: quantitative finance library
hR library: R bindings and interface
HROOT library: Haskell binding to the ROOT data analysis framework
HROOT-core library: Haskell binding to ROOT Core modules
HROOT-graf library: Haskell binding to ROOT Graf modules
HROOT-hist library: Haskell binding to ROOT Hist modules
HROOT-io library: Haskell binding to ROOT IO modules
HROOT-math library: Haskell binding to ROOT Math modules
HROOT-net library: Haskell binding to ROOT Net modules
HROOT-tree library: Haskell binding to ROOT Tree modules
hs-functors library: Functors from products of Haskell and its dual to Haskell
HsASA library: A haskell interface to Lester Ingber's adaptive simulating annealing code
hsignal library: Signal processing and EEG data analysis
hsilop program: RPN calculator
hspray library, test and benchmark: Multivariate polynomials and fractions of multivariate polynomials.
hstatistics library: Statistics
hTensor library: Multidimensional arrays and simple tensor computations.
hypergeomatrix library and test: Hypergeometric function of a matrix argument
hypergeometric library: Hypergeometric functions
hz3 library, program and test: Bindings for the Z3 Theorem Prover
ieee library: Utilities for dealing with IEEE floating point numbers
ieee754 library: Utilities for dealing with IEEE floating point numbers
integer-logarithms library and test: Integer logarithms.
integer-roots library and test: Integer roots and perfect powers
interpolation library, programs and test: piecewise linear and cubic Hermite interpolation
interval-patterns library and test: Intervals, and monoids thereof
intervals library and test: Interval Arithmetic
involutive-semigroups library: Semigroups with involution.
ipopt-hs library and program: haskell binding to ipopt and nlopt including automatic differentiation
ireal library: Real numbers and intervals with relatively efficient exact arithmetic.
irt library: Item Response Theory functions for use in computerized adaptive testing
iter-stats library and test: iteratees for statistical processing
jackpolynomials library, test and benchmark: Jack, zonal, Schur, and other symmetric polynomials
jacobi-elliptic library and test: Neville Theta Functions and Jacobi Elliptic Functions
jacobi-roots library and test: Roots of two shifted Jacobi polynomials (Legendre and Radau) to double precision
jacobi-theta library and test: Jacobi Theta Functions
jalla library and test: Higher level functions for linear algebra. Wraps BLAS and LAPACKE.
jinquantities library, program and tests: Unit conversion and manipulation library.
Kalman library: A slightly extended Kalman filter
kalman library and test: Kalman and particle filters and smoothers
kleene library and test: Kleene algebra
kmeans-vector library, program and benchmark: An implementation of the kmeans clustering algorithm based on the vector package
kmn-programming program: K_M,N quadratic programming
knead-arithmetic library: Linear algebra and interpolation using LLVM JIT
knots library and program: Khovanov homology computations
ks-test library: Kolmogorov distribution and Kolmogorov-Smirnov test.
l-bfgs-b library: Bindings to L-BFGS-B, ...
lagrangian library and test: Solve Lagrange multiplier problems
lapack library, program and test: Numerical Linear Algebra using LAPACK
lapack-carray library: Auto-generated interface to Fortran LAPACK via CArrays
lapack-comfort-array library: Auto-generated interface to Fortran LAPACK via comfort-array
lapack-ffi library: Auto-generated interface to Fortran LAPACK
lapack-ffi-tools programs: Generator for Haskell interface to Fortran LAPACK
lapack-hmatrix library: Conversion of objects between 'lapack' and 'hmatrix'
LargeCardinalHierarchy library: A transfinite cardinal arithmetic library including all known large cardinals
Lattices library and test: A library for lattices
lattices library and test: Fine-grained library for constructing and manipulating lattices
lawz library: Common mathematical laws.
lazysplines library: Differential solving with lazy splines
lean library: Bonds to Lean theorem prover
left4deadrl program: left4dead-inspired roguelike
LetsBeRational library: European option implied vol calculation
levmar library: An implementation of the Levenberg-Marquardt algorithm
lfst library and test: L-Fuzzy Set Theory implementation in Haskell
libroman library, program and test: Use Roman Numerals as a Numeric Datatype (sort of)
lie library and program: Lie Algebras
limcalc library, program and test: Limit-based symbolic calculus engine via log-Puiseux series
lin-alg library: Low-dimensional matrices and vectors for graphics and physics
linda library: LINear Discriminant Analysis
linear library and tests: Linear Algebra
linear-accelerate library and test: Lifting linear vector spaces into Accelerate
linear-algebra-cblas library and program: A linear algebra library with bindings to BLAS and LAPACK
linear-circuit library and test: Compute resistance of linear electrical circuits
linear-code library and test: A simple library for linear codes (coding theory, error correction)
linear-geo library and test: Geographic coordinates, built on the linear package.
linear-grammar library and test: A simple grammar for building linear equations and inclusive inequalities.
linear-massiv library, test and benchmarks: Type-safe numerical linear algebra backed by massiv arrays
linear-programming library: Linear Programming basic definitions
linear-smc library and test: Build SMC morphisms using linear types
linear-tests library and test: Linear Algebra
linear-vect library: A low-dimensional linear algebra library, operating on the Num typeclass
linearEqSolver library: Use SMT solvers to solve linear systems over integers and rationals
linearmap-category library and test: Native, complete-ish, matrix-free linear algebra.
logfloat library: Log-domain floating point numbers
Logic library: Logic
logic-TPTP library, programs and test: Import, export etc. for TPTP, a syntax for first-order logic
long-double : FFI bindings for C long double
lowlin library and test: Low dimensional linear algebra
LPPaver library, program and test: An automated prover targeting problems that involve nonlinear real arithmetic
lr-acts library, test and benchmark: Left and right actions, semidirect products and torsors
magico program: Compute solutions for Magico puzzle
magma library and test: magma is an algebraic structure.
magmas library: Magma-like objects.
manifold-random library: Sampling random points on general manifolds.
manifolds library and test: Coordinate-free hypersurfaces
manifolds-core library: The basic classes for the manifolds hierarchy.
math-extras library and test: A variety of mathematical utilities
math-functions library, test and benchmark: Collection of tools for numeric computations
math-grads library and tests: Library containing graph data structures and graph algorithms
math-programming library and test: A library for formulating and solving math programs.
math-programming-glpk library and test: A GLPK backend to the math-programming library.
math-programming-tests library: Utility functions for testing implementations of the math-programming library.
mathexpr library: Parse and evaluate math expressions with variables and functions
mathflow library and tests: Dependently typed tensorflow modeler
mathlist library: Math using lists, including FFT and Wavelet
matlab library and programs: Matlab bindings and interface
matrix library, tests and benchmarks: A native implementation of matrix operations.
matrix-lens library and test: Optics for the "matrix" package
matrix-market library: Read and write NIST Matrix Market files
matrix-market-pure library: Pure and composable reader and writer of the Matrix Market format.
matrix-sized library and test: Haskell matrix library with interface to C++ linear algebra libraries.
matrix-static library and test: Type-safe matrix operations
maxent library and test: Compute Maximum Entropy Distributions
mcl library, test and benchmark: Bindings to mcl, a generic and fast pairing-based cryptography library
mcmc library, test and benchmark: Sample from a posterior using Markov chain Monte Carlo
mcmc-samplers library: Combinators for MCMC sampling
mcmc-types library: Common types for sampling.
mdp library, programs and test: Tools for solving Markov Decision Processes.
MeanShift library: Mean shift algorithm
mersenne-random library: Generate high quality pseudorandom numbers using a SIMD Fast Mersenne Twister
mersenne-random-pure64 library: Generate high quality pseudorandom numbers purely using a Mersenne Twister
mfsolve library and test: Equation solver and calculator à la metafont
miniball library: Bindings to Miniball, a smallest enclosing ball library
MIP library and test: Library for using Mixed Integer Programming (MIP)
MIP-glpk library and test: A GLPK backend to the MIP library.
mixed-strategies library and program: Find optimal mixed strategies for two-player games
mixed-types-num library and test: Alternative Prelude with numeric and logic expressions typed bottom-up
mltool library and test: Machine Learning Toolbox
mmsyn2-array-ukrainian-data library: Data that is taken from the ukrainian-phonetics-basic-array for optimization.
mod library, test and benchmark: Fast type-safe modular arithmetic
modular library: Type-safe modular arithmetic
modular-arithmetic library and test: A type for integers modulo some constant.
Modulo library: Modular arithmetic via Numeric-Prelude
monad-lrs library and test: a monad to calculate linear recursive sequence
Monocle library: Symbolic computations in strict monoidal categories with LaTeX output.
monoid-semiring library and test: The monoid semiring M ->0 S and its generalized Cauchy product
monoidplus library: Extra classes/functions about monoids
monoids library: Deprecated: Use 'reducers'
monte-carlo library and test: A monad and transformer for Monte Carlo calculations.
moonlight-algebra library, tests and benchmarks: Algebraic type class tower for Pale Meridian.
moonlight-core library, tests and benchmarks: Mathematical basis for Pale Meridian.
moonlight-delta library, tests and benchmarks: Boundary-aware delta calculus for Moonlight.
moonlight-triangulation library, tests and benchmarks: Delaunay meshes and exact planar-region algebra.
mpolynomials library: Simple multivariate polynomials.
ms library and tests: metric spaces
MultipletCombiner library and test: A Haskell implementation for combining SU(n) multiplets
multiset-comb library: Combinatorial algorithms over multisets
mwc-probability library: Sampling function-based probability distributions.
mwc-random library, tests and benchmarks: Fast, high quality pseudo random number generation
mwc-random-monad library: Monadic interface for mwc-random
Naperian library: Naperian Functors for APL-like programming
NaperianNetCDF library and program: Instances of NcStore for hypercuboids
nat library: Lazy binary natural numbers
natural-arithmetic library: Arithmetic of natural numbers
natural-induction library: Induction over natural numbers
natural-numbers library: Natural numbers
NearContextAlgebra program: Context Algebra of near
netlib-carray library: Helper modules for CArray wrappers to BLAS and LAPACK
netlib-comfort-array library: Helper modules for comfort-array wrappers to BLAS and LAPACK
netlib-ffi library: Helper modules for FFI to BLAS and LAPACK
network-topic-models programs: A few network topic model implementations for bayes-stack
nimber library: Finite nimber arithmetic
noether library, program, test and benchmark: Math in Haskell.
Noise library: A Haskell coherent noise generator based on libnoise
non-negative library and test: Non-negative numbers
nonlinear-optimization library: Various iterative algorithms for optimization of nonlinear functions.
nonlinear-optimization-ad library and program: Wrapper of nonlinear-optimization package for using with AD package
nonlinear-optimization-backprop library and program: Wrapper of nonlinear-optimization package for using with backprop package
normaldistribution library: Minimum fuss normally distributed random values.
np-extras library: NumericPrelude extras
np-linear library: Linear algebra for the numeric-prelude framework
NTRU library: NTRU Cryptography
nuha library and test: Multidimensional arrays, Linear algebra, Numerical analysis
number library: A library for real numbers
number-wall library, test and benchmark: Create number walls and save them as images
numbers library and test: Various number types
NumberSieves library: Number Theoretic Sieves: primes, factorization, and Euler's Totient
NumberTheory library and test: A library for number theoretic computations, written in Haskell.
numeric-domains library: Numeric Domains
numeric-extras library: Useful tools from the C standard library
numeric-ode library and program: Ode solvers
numeric-optimization library, program and test: Unified interface to various numerical optimization algorithms
numeric-optimization-ad library, program and test: Wrapper of numeric-optimization package for using with AD package
numeric-optimization-backprop library, program and test: Wrapper of numeric-optimization package for using with backprop package
numeric-prelude library, programs and test: An experimental alternative hierarchy of numeric type classes
numeric-quest library and test: Math and quantum mechanics
numeric-tools library and test: Collection of numerical tools for integration, differentiation etc.
numerical library and test: core package for Numerical Haskell project
numericpeano library: Peano numbers with attendant bells and whistles.
numhask library: A numeric class hierarchy.
numhask-array library: Multi-dimensional arrays.
numhask-space library: Numerical spaces.
numtype library: Type-level (low cardinality) integers.
numtype-dk library: Type-level integers, using TypeNats, Data Kinds, and Closed Type Families.
numtype-tf library: Type-level (low cardinality) integers, implemented using type families.
nurbs library and test: NURBS
oeis library and test: Interface to the Online Encyclopedia of Integer Sequences (OEIS)
oeis2 library and test: Interface for Online Encyclopedia of Integer Sequences (OEIS).
Operads library: Groebner basis computation for Operads.
optimization library: Numerical optimization
ord-axiomata library: Axiomata & lemmata for easier use of Data.Type.Ord
Ordinals library: Ordinal arithmetic
padic library, test and benchmark: Fast, type-safe p-adic arithmetic
Paillier library and test: a simple Paillier cryptosystem
pandoc-symreg library, program and test: A tool to convert symbolic regression expressions into different formats.
pareto library: A library for cause-effect relationships.
pareto-front library and test: Monoids for dealing with Pareto efficiency
ParserFunction library: Parse and evaluate mathematical expressions.
pava library, test and benchmark: Greatest convex majorants and least concave minorants
peano library and benchmark: Peano numbers
pell library and test: Package to solve the Generalized Pell Equation.
periodic-polynomials library: A library for working with periodic polynomials (very basic functionality)
permutation library: A library for permutations and combinations.
permutations library and test: Permutations of finite sets
Persistence library and test: A versatile library for topological data analysis.
phladiprelio-general-datatype library: Extended functionality of PhLADiPreLiO
phladiprelio-general-shared library: A shared by different general implementations of the PhLADiPreLiO functionality.
phladiprelio-general-simple library: ...
phladiprelio-rhythmicity-shared library: Allows to estimate some kind of the rhythmicity properties for the text
phladiprelio-ukrainian-shared library: A shared by different Ukrainian implementations of the PhLADiPreLiO functionality.
phladiprelio-ukrainian-simple library and program: ...
phonetic-languages-basis library: A basics of the phonetic-languages (PhLADiPreLiO-related) functionality.
phonetic-languages-constaints library: Constraints to filter the needed permutations
phonetic-languages-constraints library: Constraints to filter the needed permutations
phonetic-languages-constraints-array library: Constraints to filter the needed permutations
phonetic-languages-examples library and programs: A generalization of the uniqueness-periods-vector-examples functionality.
phonetic-languages-permutations library: Commonly used versions of the phonetic-languages-common package
phonetic-languages-permutations-array library: Permutations and universal set related functions for the phonetic-languages series
phonetic-languages-phonetics-basics library and program: A library for working with generalized phonetic languages usage.
phonetic-languages-plus library and program: Some common shared between different packages functions.
phonetic-languages-rhythmicity library: Allows to estimate the rhythmicity properties for the text
phonetic-languages-simplified-base library: A basics of the phonetic-languages functionality that can be groupped.
phonetic-languages-simplified-common library: A simplified version of the phonetic-languages-functionality
phonetic-languages-simplified-examples-array library and programs: Helps to create Ukrainian texts with the given phonetic properties.
phonetic-languages-simplified-examples-common library: Some commonly used by phonetic-languages-simplified* series functions.
phonetic-languages-simplified-generalized-examples-array library: Helps to create texts with the given phonetic properties (e. g. poetic).
phonetic-languages-simplified-generalized-examples-common library: Some common code for phonetic languages generalized functionality.
phonetic-languages-simplified-generalized-properties-array library: Some 'properties' of the phonetic languages approach text.
phonetic-languages-simplified-lists-examples library and programs: Simplified and somewhat optimized version of the phonetic-languages-examples.
phonetic-languages-simplified-properties-array library: Some properties of the data related to rhythmicity.
phonetic-languages-simplified-properties-array-common library: Common functionality for 'with-tuples' and old version of properties.
phonetic-languages-simplified-properties-array-old library: Some properties of the data related to rhythmicity.
phonetic-languages-simplified-properties-lists-double library: A generalization of the uniqueness-periods-vector-properties package.
pig library and program: dice game
plot-gtk-ui library: A quick way to use Mathematica like Manipulation abilities
plot-lab program: A plotting tool with Mathematica like Manipulation abilities
poker-eval library: Binding to libpoker-eval
polar library: Complex numbers in polar form
poly library, test and benchmark: Polynomials
polynom library and test: Polynomial types and operations
polynomial library and test: Polynomials
polynomial-algebra library: Multivariate polynomial rings
polynomials-bernstein library: A solver for systems of polynomial equations in bernstein form
posit library, tests and benchmarks: Posit Numbers
prime library and test: prime number tools
primecount library, test and benchmark: Bindings to the primecount library
primesieve library and programs: FFI bindings for the primesieve library.
prob library and test: Discrete probability monad
probability library: Probabilistic Functional Programming
probability-polynomial library, test and benchmark: Probability distributions via piecewise polynomials
probable library and benchmark: Easy and reasonably efficient probabilistic programming and random generation
Probnet library: Geometric Extrapolation of Integer Sequences with error prediction
product library: Product category
PropaFP library, programs and test: Auto-active verification of floating-point programs
property library: common properties
ProxN library: Proximity sets in N dimensions
pure-fft library: Fast Fourier Transform
pure-noise library, test and benchmarks: Performant, modern noise generation (Perlin, OpenSimplex2, Cellular)
qd library: double-double and quad-double number type via libqd
qd-vec library: 'Vec' instances for 'qd' types
qhull library and programs: Delaunay triangulation, Voronoi diagrams and convex hulls.
qhull-simple library: Simple bindings to Qhull, a library for computing convex hulls
qlinear library and test: Typesafe library for linear algebra
quadratic-irrational library and tests: An implementation of quadratic irrationals
quantities library, program and tests: Unit conversion and manipulation library.
quantizer library: Library to provide the behaviour similar to quantum states superposition.
quote-quot library, test and benchmark: Divide without division
r-glpk-phonetic-languages-ukrainian-durations library and program: Can be used to calculate the durations of the approximations of the Ukrainian phonemes.
rad library: Reverse Automatic Differentiation.
rampart library and test: Determine how intervals relate to each other.
random-cycle library, test and benchmark: Uniform draws of partitions and cycle-partitions, with thinning.
random-extras library: Additional functions for random values.
random-fu : Random number generation
random-fu-multivariate library and test: Multivariate distributions for random-fu
random-hypergeometric library and test: Random variate generation from hypergeometric distributions
random-source library: Generic basis for random number generators
range-space library and test: A Range type with vector-space instances
RANSAC library and test: The RANSAC algorithm for parameter estimation.
ratio-int library: Fast specialisation of Data.Ratio for Int.
rclient library: Haskell client for Rserve
real-dice library, program and test: Random number generation based on physical media touched by humans
reduce-equations library, program and test: Simplify a set of equations by removing redundancies
reducers library: Semigroups, specialized containers and a general map/reduce framework
regress library: Linear and logistic regression through automatic differentiation
regression-simple library and tests: Simple linear and quadratic regression
reservoir library: Unweighted reservoir sampling
resistor-cube program: Compute total resistance of a cube of resistors
rev-scientific library: A library to provide special kind of big numbers writing.
rhythmic-sequences library: Improved library to deal with rhythmicity of short sequences
rings library: Ring-like objects.
rivers library: Rivers are like Streams, but different.
roots library: Root-finding algorithms (1-dimensional)
rounded library and test: Correctly-rounded arbitrary-precision floating-point arithmetic
rounded-hw library, tests and benchmark: Directed rounding for built-in floating types
rounding library: Explicit floating point rounding mode wrappers
rsagl-math library: The RogueStar Animation and Graphics Library: Mathematics
ruff library: relatively useful fractal functions
rvar library: Random Variables
safe-decimal library and tests: Safe and very efficient arithmetic operations on fixed decimal point numbers
safe-tensor library: Dependently typed tensor algebra
sampling library, test and benchmark: Sample values from collections.
sbv library, tests and benchmark: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
sbvPlugin library and test: Formally prove properties of Haskell programs using SBV/SMT
science-constants library: Mathematical/physical/chemical constants
science-constants-dimensional library: Mathematical/physical/chemical constants
sde-solver library: Distributed SDE solver
search library and test: Infinite search in finite time with Hilbert's epsilon
semigroups library: Anything that associates
semigroups-actions library: Semigroups actions
semilattices library and test: Semilattices
semiring program: Semirings, ring-like structures used for dynamic programming applications
semiring-simple library: A module for dealing with semirings.
semirings library: two monoids as one, in holy haskimony
set-cover library, programs, test and benchmark: Solve exact set cover problems like Sudoku, 8 Queens, Soma Cube, Tetris Cube
sfmt library: SIMD-oriented Fast Mersenne Twister(SFMT) binding.
SG library: Small geometry library for dealing with vectors and collision detection
sgd library and test: Stochastic gradient descent library
SGplus library: (updated) Small geometry library for dealing with vectors and collision detection
shapes-math library, program and test: faster vector/matrix math using unboxed numbers and Template Haskell
siggy-chardust library and tests: Rounding rationals to significant digits and decimal places.
sigma-ij library and program: Thom polynomials of second order Thom-Boardman singularities
sign library and test: Arithmetic over signs and sets of signs
significant-figures library, program and test: Calculate expressions involving significant figures.
simd library: simple interface to GHC's SIMD instructions
simple-smt library: A simple way to interact with an SMT solver process.
simple-vec3 library, tests and benchmark: Three-dimensional vectors of doubles with basic operations
simplex-basic library and test: Very basic simplex implementation.
simplex-method library and test: Implementation of the two-phase simplex method in exact rational arithmetic
singletons-presburger library and program: Presburger Arithmetic Solver for GHC Type-level natural numbers with Singletons package.
singular-factory library and test: Multivariate polynomial factorization via bindings to Singular-factory
sloane program: A command line interface to Sloane's OEIS.
SmithNormalForm library: A lightweight Haskell implementation of Smith normal form over the integers.
Smooth library: A tiny, lazy SMT solver
softfloat-hs library: Haskell bindings for SoftFloat
som library and test: Self-Organising Maps
sparse-lin-alg library and test: Effective linear algebra on sparse matrices
sparse-tensor library and test: typesafe tensor algebra library
spatial-math library and tests: 3d math including quaternions/euler angles/dcms and utility functions
spatial-rotations library and test: Rotate about any suitable axis
SpatialMath library and tests: 3d math including quaternions/euler angles/dcms and utility functions
spe library and test: Combinatorial species lite
species library: Computational combinatorial species
spectral-clustering library: Library for spectral clustering.
speedy-slice library and tests: Speedy slice sampling.
spherical library: Geometry on a sphere
spline3 program: Parallel implementation of the Sorokina/Zeilfelder spline scheme
splines library, test and benchmark: B-Splines, other splines, and NURBS.
splitmix-distributions library and test: Random samplers for some common distributions, based on splitmix.
spsa library, test and benchmark: Simultaneous Perturbation Stochastic Approximation Optimization Algorithm
squares library: The double category of Hask functors and profunctors
srtree library, programs and test: A general library to work with Symbolic Regression expression trees.
stable-maps library: Heterogeneous maps keyed by StableNames
staf library: Numerical statistics for Foldable containers
statistics library, tests and benchmarks: A library of statistical types, data, and functions
statistics-dirichlet library: Functions for working with Dirichlet densities and mixtures on vectors.
statistics-fusion library: An implementation of high performance, minimal statistics functions
statistics-hypergeometric-genvar library: Random variate generation from hypergeometric distributions
statistics-linreg library: Linear regression between two samples, based on the 'statistics' package.
statistics-skinny library and test: A library of statistical types, data, and functions
stats program: command line statistics
stats-monad library: A discrete probability monad with statistics
stern-brocot library, test and benchmark: Positive rational numbers represented as paths in the Stern-Brocot tree
stochastic library and tests: Monadic composition of probabilistic functions and sampling.
stp library and program: Simple Theorem Prover
sum-pyramid program and test: Create Sum Pyramid (Additionstreppe) exercises
svm-light-utils library: Parsers and formatters for the SVMlight input file format
sym library and test: Permutations, patterns, and statistics
sym-plot library: Plot permutations; an addition to the sym package
symengine library and test: SymEngine symbolic mathematics engine for Haskell
symengine-hs library, program and test: SymEngine symbolic mathematics engine for Haskell
symplectic-chp library, programs and test: CHP Clifford simulator using symplectic geometry
Synapse library and test: Synapse is a machine learning library written in pure Haskell.
synapse library and test: Synapse is a machine learning library written in pure Haskell.
tau library: Tau, the ratio between any circle's circumference and radius.
tensor library and tests: A completely type-safe library for linear algebra
tensort library, program and test: Tunable sorting for responsive robustness and beyond
terntup library and test: a ternary library
TeX-my-math library, program and test: ...
th-cas library and tests: Compile-time CAS(Computer Algebra System)
theta-functions library: Theta-functions implemented as trigonometric series
tikzsd library and program: A program for generating LaTeX code of string diagrams.
tilings library: substitution tilings
tropical library: A library for tropical mathematics.
turing-machines library: A simple simulator for Turing machines
turingMachine library and tests: An implementation of Turing Machine and Automaton
type-natural library and test: Type-level natural and proofs of their properties.
type-settheory library: Sets and functions-as-relations in the type system
uncertain library: Manipulating numbers with inherent experimental/measurement uncertainty
uniqueness-periods-vector library: ...
uniqueness-periods-vector-common library: Generalization of the dobutokO-poetry-general package functionality
uniqueness-periods-vector-examples library and programs: Usage examples for the uniqueness-periods-vector series of packages
uniqueness-periods-vector-filters library: A library allows to change the structure of the 'RealFrac' function output.
uniqueness-periods-vector-general library: Some kind of the optimization approach to data inner structure.
uniqueness-periods-vector-properties library: Metrices for the maximum element for the uniqueness-periods-vector packages family.
uniqueness-periods-vector-stats library: A very basic descriptive statistics.
units library: A domain-specific type system for dimensional analysis
units-list library and test: Extensible typed Dimensions
unittyped library and test: An extendable library for type-safe computations including units.
valuations library and test: Valuations
variable-precision library: variable-precision floating point
Vec library: Fixed-length lists and low-dimensional linear algebra.
Vec-Boolean library: Provides Boolean instances for the Vec package
Vec-OpenGLRaw library: Instances and functions to interoperate Vec and OpenGL.
Vec-Transform library: This package is obsolete
vect library: A low-dimensional linear algebra library, tailored to computer graphics.
vect-floating library: A low-dimensional linear algebra library, operating on the Floating typeclass
vect-floating-accelerate library: Accelerate instances for vect-floating types
vect-opengl library: OpenGL support for the `vect' low-dimensional linear algebra library.
vector-fftw library and test: A binding to the fftw library for one-dimensional vectors.
vector-space : Vector & affine spaces, linear maps, and derivatives
vector-space-map library and test: vector-space operations for finite maps using Data.Map
vector-space-opengl library and test: Instances of vector-space classes for OpenGL types
vector-space-points library: A type for points, as distinct from vectors.
vertexenum library and test: Vertex enumeration
vowpal-utils library: Vowpal Wabbit utilities
WeberLogic library and program: Logic interpreter
weierstrass-functions library and test: Weierstrass Elliptic Functions
wigner-symbols library, test and benchmark: CG coefficients and Wigner symbols.
word library and test: Words of arbitrary size
wuerfelschlange programs: Code for the dice chain problem
xorshift library: Haskell implementation of the xorshift random generator.
xorshift-plus library, tests and benchmark: Simple implementation of xorshift+ PRNG
Xorshift128Plus library: Pure haskell implementation of xorshift128plus random number generator.
yhseq library, program and test: Calculation of YH sequence system
yices library: Haskell programming interface to Yices SMT solver
yices-easy library: Simple interface to the Yices SMT (SAT modulo theories) solver.
yices-painless library: An embedded language for programming the Yices SMT solver
z3 library, program and test: Bindings for the Z3 Theorem Prover
ZEBEDDE library: Polymer growth simulation method

Mathematics

chainweb-mining-client program and test: Mining Client for Kadena Chainweb
digraph library and test: Directed Graphs
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
inf-backprop library and test: Automatic differentiation and backpropagation.
LargeCardinalHierarchy library: A transfinite cardinal arithmetic library including all known large cardinals
LPPaver library, program and test: An automated prover targeting problems that involve nonlinear real arithmetic
matroid library and test: matroid (combinatorial pre-geometries) library
moving-averages library and test: This is a library for calculating moving averages on lists of numbers.
numhask-hedgehog library and test: Laws and tests for numhask
numhask-prelude library and test: A numeric prelude
numhask-test library and test: Laws and tests for numhask
oalg-abg library and test: Finitely generated abelian groups.
oalg-base library and test: ...
ordered library: A definition of Posets.
plankton library: The core of a numeric prelude, taken from numhask
probability-dist library and test: Probability distributions in Haskell
PropaFP library, programs and test: Auto-active verification of floating-point programs
RoundingFiasco library and test: rounding variants floor, ceil and truncate for floating point operations +-*/√…
semirings library: two monoids as one, in holy haskimony
simple-expr library and test: Minimalistic toolkit for simple mathematical expression.
simplex-method library and test: Implementation of the two-phase simplex method in exact rational arithmetic
symtegration library and tests: Library for symbolic integration of mathematical expressions.
tower library and test: A numeric tower

Maths

colour-space library and test: Instances of the manifold-classes for colour types
FiniteCategories library and test: Finite categories and usual categorical constructions on them.
FiniteCategoriesGraphViz library and test: Transform objects of the package FiniteCategories into graphs using GraphViz.
LargeCardinalHierarchy library: A transfinite cardinal arithmetic library including all known large cardinals
LPPaver library, program and test: An automated prover targeting problems that involve nonlinear real arithmetic
planar-graph library: A representation of planar graphs
PropaFP library, programs and test: Auto-active verification of floating-point programs
semirings library: two monoids as one, in holy haskimony
simplex-method library and test: Implementation of the two-phase simplex method in exact rational arithmetic

Matrix

picedit library and program: simple image manipulation functions

MCP

mcp-server library, programs and test: Library for building Model Context Protocol (MCP) servers

Media

ffmpeg-tutorials programs: Tutorials on ffmpeg usage to play video/audio
gstreamer library: Binding to the GStreamer open source multimedia framework.
hoovie program: Haskell Media Server
hs-ffmpeg library: Bindings to FFMPEG library
mediabus library and test: Multimedia streaming on top of Conduit
mpris library: Interface for MPRIS
path-formatting library: Formatting for path
pontarius-mediaserver program: Extended Personal Media Network (XPMN) media server
pontarius-xpmn library: Extended Personal Media Network (XPMN) library
simple-media-timestamp library: A very simple timestamp type.
simple-media-timestamp-attoparsec library: Attoparsec parser for simple-media-timestamp.
simple-media-timestamp-formatting library: Formatting for simple-media-timestamp
srt library: The data type for SRT files.
srt-attoparsec library: Attoparsec parser for the SRT format.
srt-dhall library: Dhall Encoder/Decoder for SRT.
srt-formatting library: Format an SRT.
temporal-media library: data types for temporal media
variable-media-field library: Simple type for representing one of several media types.
variable-media-field-dhall library: Dhall instances for VF
variable-media-field-optics library: Optics for variable-media-field.
xine library: Bindings to xine-lib

MediaConnect

stratosphere-mediaconnect library: Stratosphere integration for AWS MediaConnect.

MediaConvert

stratosphere-mediaconvert library: Stratosphere integration for AWS MediaConvert.

MediaLive

stratosphere-medialive library: Stratosphere integration for AWS MediaLive.

MediaPackage

stratosphere-mediapackage library: Stratosphere integration for AWS MediaPackage.

MediaPackageV2

stratosphere-mediapackagev2 library: Stratosphere integration for AWS MediaPackageV2.

MediaStore

stratosphere-mediastore library: Stratosphere integration for AWS MediaStore.

MediaTailor

stratosphere-mediatailor library: Stratosphere integration for AWS MediaTailor.

Medical

dicom library: ...
isdicom library, program and test: An executable and library to determine if a file is a DICOM file

Megaparsec

headed-megaparsec library: More informative parser

Memoization

fastmemo library and test: Memoize functions on Generic types
memo-map library and test: Memoization in a Map
XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP

Memory

disk-bytes library and benchmark: On-disk storage, but referentially transparent
membrain library and tests: Type-safe memory units
memory library and test: memory and related abstraction stuff
memory-cd test: memory and related abstraction stuff
memory-pool library, test and benchmark: Short description
ptr-poker library, test and benchmark: Pointer poking action construction and composition toolkit
ram library and test: memory and related abstraction stuff
secure-memory library, program and tests: Securely allocated and deallocated memory.

MemoryDB

stratosphere-memorydb library: Stratosphere integration for AWS MemoryDB.

Message-Oriented

courier library, programs and test: A message-passing library for simplifying network applications

Message-Oriented Middleware

patterns library: Common patterns in message-oriented applications
stomp-conduit library: Stompl Conduit Client
stomp-patterns library: Stompl MOM Stomp Patterns
stomp-queue library: Stompl Client Library
stompl library: Stomp Parser and Utilities

Messaging

kafka-effectful library, programs and test: Effectful effects for hw-kafka-client

Metalanguage

ebnf-bff library and program: Parser combinators & EBNF, BFFs!

Metaprogramming

glob-imports library, program and test: Import modules for metaprogramming

Metrics

arbor-monad-metric library and test: Core metric library for publishing metrics.
arbor-monad-metric-datadog library and test: Metric library backend for datadog.
data-prometheus library, program and test: Prometheus metrics text format
freckle-otel library and test: Some extensions to the hs-opentelemetry-sdk library
hs-opentelemetry-api library, test and benchmark: OpenTelemetry API for libraries to instrument code or build wrappers.
hs-opentelemetry-exporter-otlp library and test: OpenTelemetry exporter supporting the standard OTLP protocol
hs-opentelemetry-exporter-prometheus library and test: Prometheus text exposition for OpenTelemetry metrics export batches
hs-opentelemetry-sdk library and test: OpenTelemetry SDK for use in applications.
metricsd-client library: Client for the metrics aggregator Metricsd
nagios-check library and test: Package for writing monitoring plugins
network-metrics library: Send metrics to Ganglia, Graphite, and statsd.
prometheus library and program: Prometheus Haskell Client
statsdi library and test: A lovely [Dog]StatsD implementation

Microcontroller

STLinkUSB library: STLink USB interface in Haskell
STM32-Zombie library: control a STM32F103 microcontroller
STM32F103xx-SVD library: Definition for Peripherals,Registers and Fields from STM32F103xx.svd
SVD2HS library: translate a SVD of a Microcontroller to Haskell tables

Microservice

boots-cloud library: Factory for quickly building a microservice

Middleware

Hermes library: Message-based middleware layer
lambda-bridge library and program: A bridge from Haskell (on a CPU) to VHDL on a FPGA.
persistent-map library: A thread-safe (STM) persistency interface for finite map types.

MIDI

Aoide library and program: A simple music library that can generate Lilypond and MIDI files.

Minecraft

mcpi library and programs: Connect to MineCraft running on a Raspberry PI.
minecraft-data library: a DSL for generating minecraft commands and levels

Miscellaneous

reexport-crypto-random library

Miso

css-class-bindings library and test: generates Haskell bindings for CSS classes
miso library: A tasty Haskell front-end web framework
miso-css library and test: wrapper over miso checking CSS classes applicability through dependent types
miso-examples programs: A tasty Haskell front-end web framework

Mit

pandoc-markdown-ghci-filter library, program and test: Pandoc-filter to evaluate `code` section in markdown and auto-embed output.

Mobile

android-activity library: Turn regular Haskell programs into Android Activities
hatter library, programs and test: Native IOS and Android applications in haskell!
push-notify library: A server-side library for sending push notifications.
push-notify-apn library, program and test: Send push notifications to mobile iOS devices
push-notify-ccs library: ...
push-notify-general library: A general library for sending/receiving push notif. through dif. services.

Model

algebra-checkers library: Model and test API surfaces algebraically
boardgame library, program and test: Modeling boardgames
clafer library, program and tests: Compiles Clafer models to other formats: Alloy, JavaScript, JSON, HTML, Dot.
claferIG library, program and test: claferIG is an interactive tool that generates instances of Clafer models.
hCM library, program and test: Conceptual modelling support for Haskell

Model Learning

haal library, programs, test and benchmark: A Haskell library for Active Automata Learning.
haal-models library: Pre-built Mealy automaton models for haal.

Modelling

polysemy-methodology-composite library: Functions for using polysemy-methodology with composite.

Modules

cabal-auto-expose library: Build time library that autodetects exposed modules

Monad

boots library and test: IoC Monad in Haskell
colorful-monoids library and test: Styled console text output using ANSI escape sequences.
cond library: Basic conditional and boolean operators with monadic variants.
console-style library: Styled console text output using ANSI escape sequences.
except-exceptions library: Safely deal with exceptions in ExceptT
exception-monads-fd library: Exception monad transformer instances for monads-fd classes.
exception-monads-tf library: Exception monad transformer instances for monads-tf classes.
exception-mtl library: Exception monad transformer instances for mtl classes.
exception-transformers library and test: Type classes and monads for unchecked extensible exceptions.
exceptions library and test: Extensible optionally-pure exceptions
failable library: A 'Failable' error monad class to unify failure across monads that can fail
indexed-free library: indexed monads for free
monad-connect library: Transformer for TCP connection with TLS and SOCKS support
monad-hash library and test: Monad transformer for incremental hashing
monad-memo library, test and benchmark: Memoization monad transformer
monad-supply library: Stateful supply monad
MonadCompose library: Methods for composing monads.
monadic-recursion-schemes library and test: Recursion Schemes for Monadic version.
pipes-errors library: Integration between pipes and errors
set-monad library: Set monad
supermonad library and test: Plugin and base library to support supermonads in Haskell
tagged-exception-core library: Reflect exceptions using phantom types.
tangle library and programs: Heterogenous memoisation monad
time-out library and test: Timers, timeouts, alarms, monadic wrappers
unlift library: Typeclass for monads that can be unlifted to arbitrary base monads
views library: Views allow you to run a State monad on part of a state.

Monadic Regions

IOR library: Region based resource management for the IO monad.
monad-stlike-io library: ST-like monad capturing variables to regions and supporting IO.
monad-stlike-stm library: ST-like monad capturing variables to regions and supporting STM.
regional-pointers library: Regional memory pointers
regions library: Provides the region monad for safely opening and working with scarce resources.
regions-monadsfd library: Monads-fd instances for the RegionT monad transformer
regions-monadstf library: Monads-tf instances for the RegionT monad transformer
regions-mtl library: mtl instances for the RegionT monad transformer
safer-file-handles library: Type-safe file handling
safer-file-handles-bytestring library: Extends safer-file-handles with ByteString operations
safer-file-handles-text library: Extends safer-file-handles with Text operations
usb-safe library: Type-safe communication with USB devices.

MonadIO

stm-lifted library: Software Transactional Memory lifted to MonadIO

Monads

abstract-par library: Type classes generalizing the functionality of the 'monad-par' library.
atrans library: A small collection of monad (transformer) instances.
backward-state library: A state monad that runs the state in reverse through the computation
category-extras library: A meta-package documenting various packages inspired by category theory
compose-trans library: Composable monad transformers
Consumer library: A monad and monad transformer for consuming streams
control-monad-exception library: Explicitly typed, checked exceptions with stack traces
control-monad-exception-monadsfd library: Monads-fd instances for the EMT exceptions monad transformer
control-monad-exception-monadstf library: Monads-tf instances for the EMT exceptions monad transformer
control-monad-exception-mtl library: MTL instances for the EMT exceptions monad transformer
control-monad-failure library: A class for monads which can fail with an error. (deprecated)
control-monad-failure-mtl library: A class for monads which can fail with an error for mtl 1 (deprecated)
control-monad-free library: Free monads and monad transformers
contstuff library: Fast, easy to use CPS-based monad transformers
contstuff-monads-tf library: ContStuff instances for monads-tf transformers (deprecated)
contstuff-transformers library: Deprecated interface between contstuff 0.7.0 and the transformers package
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
data-accessor-monadLib library: Accessor functions for monadLib's monads
database-study library: Demonstrate how a database can be implemented the functional way
effect-monad library: ...
effective-aspects library and test: A monadic embedding of aspect oriented programming
effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...
effects library: Computational Effects
effects-parser library: Parser Effect for the Control.Effects Library
either library and test: Combinators for working with sums
exotic-list-monads library and test: Non-standard monads on lists and non-empty lists
explicit-sharing library: Explicit Sharing of Monadic Effects
extensible-skeleton library and test: Operational-based extensible effect library
failure library: A simple type class for success/failure computations. (deprecated)
free library: Monads for free
free-algebras library and test: Free algebras
free-category library, test and benchmark: efficient data types for free categories and arrows
free-game library and programs: Create games for free
free-vl library, program and test: van Laarhoven encoded Free Monad with Extensible Effects
freer-par-monad library and test: Freer par monad
functor-monad library and test: FFunctor: functors on (the usual) Functors
graphted library: Graph indexed monads.
hdph library and programs: Haskell distributed parallel Haskell
heftia library and test: higher-order algebraic effects done right
heftia-effects library, programs, test and benchmark: higher-order algebraic effects done right
hofix-mtl library: defining @mtl@-ready monads as * -> * fixed-points
hsmisc library and test: A collection of miscellaneous modules
iException library: Version of Control.Exception using InterleavableIO.
infinite-search library: Exhaustively searchable infinite sets.
interleavableGen program: Generates a version of a module using InterleavableIO
interleavableIO library: Use other Monads in functions that asks for an IO Monad.
ixmonad library: Embeds effect systems into Haskell using parameteric effect monads
kan-extensions library: Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
lazyio library and test: Run IO actions lazily while respecting their order
level-monad library: Non-Determinism Monad for Level-Wise Search
meta-par library: Provides the monad-par interface, but based on modular scheduler "mix-ins".
monad-actions library, programs and test: Actions of monads on functors
monad-coroutine library: Coroutine monad transformer for suspending and resuming monadic computations
monad-dijkstra library and tests: A monad transformer for weighted graph searches
monad-effect library, test and benchmark: A fast and lightweight effect system.
monad-interleave library: Monads with an unsaveInterleaveIO-like operation.
monad-par library and test: A library for parallel programming based on a monad
monad-par-extras library: Combinators and extra features for Par monads
monad-parallel library: Parallel execution of monadic computations
monad-parallel-progressbar library: Parallel execution of monadic computations with a progress bar
monad-products library: Monad products
monad-ran library: Fast monads and monad transformers
monad-skeleton library: Monads of program skeleta
monad-st library: Provides a MonadST class
monad-state library: Utility library for monads, particularly those involving state.
monad-stlike-io library: ST-like monad capturing variables to regions and supporting IO.
monad-stlike-stm library: ST-like monad capturing variables to regions and supporting STM.
monad-tx library: A transactional state monad.
MonadLab library and program: Automatically generate layered monads
monadLib library: A collection of monad transformers.
monadLib-compose library: Arrow-like monad composition for monadLib.
monadloc library: A class for monads which can keep a monadic call trace
monadloc-pp program: A preprocessor for generating monadic call traces
monadology library and test: The best ideas in monad-related classes and types.
mstate library: MState: A consistent State monad for concurrent applications.
mtl-c library: Very strict CPS'd transformers
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
operational library and program: Implementation of difficult monads made easy with operational semantics.
pqueue-mtl library: Fully encapsulated monad transformers with queuelike functionality.
probability library: Probabilistic Functional Programming
representable-functors library: Representable functors
representable-tries library: Tries from representations of polynomial functors
resumable-exceptions library: A monad transformer for resumable exceptions
rhythm-game-tutorial programs: Haskell rhythm game tutorial
stateful-mtl library: Typeclass instances for monad transformer stacks with an ST thread at the bottom.
statethread library: The ST monad and STRefs
STMonadTrans library and test: A monad transformer version of the ST monad
stream-monad library and program: Simple, Fair and Terminating Backtracking Monad
streamt library and tests: Simple, Fair and Terminating Backtracking Monad Transformer
supply-chain library: Composable request-response pipelines
supply-chain-core library and test: Composable request-response pipelines
tagged-exception-core library: Reflect exceptions using phantom types.
Tainted library: Tainted type, and associated operations
transformers-compose library: Arrow-like / category-like composition for transformers.
tree-monad library: Non-Determinism Monad for Tree Search
TreeT library: Transformer for Data.Tree
wl-pprint-extras library and test: A free monad based on the Wadler/Leijen pretty printer
wl-pprint-terminfo library: A color pretty printer with terminfo support
ZFS library: Oleg's Zipper FS

Money

safe-money library and test: Type-safe and lossless encoding and manipulation of money, fiat currencies, ...
safe-money-aeson library and test: Instances from the aeson library for the safe-money library.
safe-money-cereal library and test: Instances from the cereal library for the safe-money library.
safe-money-serialise library and test: Instances from the serialise library for the safe-money library.
safe-money-store library and test: Instances from the store library for the safe-money library.
safe-money-xmlbf library and test: Instances from the xmlbf library for the safe-money library.

Monitoring

alerta library: Bindings to the alerta REST API
atelier-monitoring library and test: Effectful-based monitoring suite
baikai-trace-otel library and test: OpenTelemetry TraceSink for baikai.
dbmonitor library and program: Data consistency alerting for PostgreSQL
eventlog-live library and program: Real-time monitoring for any Haskell application with little to no instrumentation
eventlog-live-influxdb library and program: Stream eventlog data into InfluxDB.
eventlog-live-otelcol library and program: Stream eventlog data to the OpenTelemetry Collector.
freckle-otel library and test: Some extensions to the hs-opentelemetry-sdk library
hriemann library, program and test: A Riemann Client for Haskell
hs-opentelemetry-api library, test and benchmark: OpenTelemetry API for libraries to instrument code or build wrappers.
hs-opentelemetry-api-types library: Core attribute types for hs-opentelemetry
hs-opentelemetry-exporter-handle library and test: Handle-based exporter for OpenTelemetry (e.g. stdout)
hs-opentelemetry-exporter-otlp library and test: OpenTelemetry exporter supporting the standard OTLP protocol
hs-opentelemetry-exporter-prometheus library and test: Prometheus text exposition for OpenTelemetry metrics export batches
hs-opentelemetry-instrumentation-amazonka library and test: OpenTelemetry instrumentation for the Amazonka AWS SDK
hs-opentelemetry-instrumentation-ghc-metrics library and test: OpenTelemetry metrics for the GHC runtime (RTS statistics)
hs-opentelemetry-instrumentation-gogol library and test: OpenTelemetry instrumentation for the Gogol Google Cloud SDK
hs-opentelemetry-sdk library and test: OpenTelemetry SDK for use in applications.
hs-opentelemetry-semantic-conventions library and program: OpenTelemetry Semantic Conventions for Haskell
instana-haskell-trace-sdk library, programs and tests: SDK for adding custom Instana tracing support to Haskell applications.
metricsd-client library: Client for the metrics aggregator Metricsd
nagios-check library and test: Package for writing monitoring plugins
network-metrics library: Send metrics to Ganglia, Graphite, and statsd.
pagerduty library: Client library for PagerDuty Integration and REST APIs.
prometheus library and program: Prometheus Haskell Client
statgrab library: Collect system level metrics and statistics

MPA

stratosphere-mpa library: Stratosphere integration for AWS MPA.

Mptcp

mptcp library and test: Datastructures to describe TCP and MPTCP connections
mptcp-pm library, program and test: A Multipath TCP path manager

MSK

stratosphere-msk library: Stratosphere integration for AWS MSK.

Mtl

cps-except library: ExceptT replacement in CPS style

Multimedia

manatee-mplayer library and programs: Mplayer client extension for Manatee.
movie-monad program: Plays videos using GStreamer and GTK+.
mpvguihs program: A minimalist mpv GUI written in I/O heavy Haskell.

Multimedia Player

manatee-mplayer library and programs: Mplayer client extension for Manatee.
movie-monad program: Plays videos using GStreamer and GTK+.

Mumeric.Statistics

hstats library: Statistical Computing in Haskell

Murmur

murmur3 library and test: Pure Haskell implementation of the MurmurHash3 x86 algorithm

Music

abcnotation library: Haskell representation and parser for ABC notation.
aftovolio library and programs: ...
algorithmic-composition-additional library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
algorithmic-composition-basic library: Helps to create experimental music from a file (or its part) and a Ukrainian text.
algorithmic-composition-complex library: Helps to create more complex experimental music from a file (especially timbre).
algorithmic-composition-frequency-shift library: Helps to create experimental music. Uses SoX inside.
alsa library: Binding to the ALSA Library API.
alsa-core library: Binding to the ALSA Library API (Exceptions).
alsa-gui programs: Some simple interactive programs for sending MIDI control messages via ALSA
alsa-midi library and programs: Bindings for the ALSA sequencer API (MIDI stuff)
alsa-pcm library and programs: Binding to the ALSA Library API (PCM audio).
alsa-pcm-tests programs: Tests for the ALSA audio signal library.
alsa-seq library and programs: Binding to the ALSA Library API (MIDI sequencer).
alsa-seq-tests programs: Tests for the ALSA sequencer library.
Aoide library and program: A simple music library that can generate Lilypond and MIDI files.
billboard-parser library and program: A parser for the Billboard chord dataset
boomwhacker program: Convert MIDI file to play-along boomwhacker animation
boopadoop library, program and test: Mathematically sound sound synthesis
conductive-base library: a library for live coding and real-time musical applications
conductive-clock library: a library for displaying musical time in a terminal-based clock
conductive-hsc3 library: a library with examples of using Conductive with hsc3
conductive-song library: a library of functions which are useful for composing music
csound-catalog library: a gallery of Csound instruments.
csound-controllers library and test: MIDI controllers
csound-expression library and benchmark: library to make electronic music
csound-expression-dynamic library: dynamic core for csound-expression library
csound-expression-opcodes library: opcodes for the library csound-expression
csound-expression-typed library: typed core for the library csound-expression
csound-sampler library: A musical sampler based on Csound
dobutokO-effects library: A library to deal with SoX effects and possibilities
dobutokO2 library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
dobutokO3 library: Helps to create more complex experimental music from a file (especially timbre).
Euterpea library: Library for computer music research and education
fadno library and test: Minimal library for music generation and notation
fadno-xml library: XML/XSD combinators/schemas/codegen
FComp library and program: Compose music
fractionizer library: Numbers in the range [0.005, 1] as a sum of 2, 3, 4 or 5 unit fractions of special types.
free-v-bucks-generator-ps4-no-survey program: Spam
hamusic library and programs: Library to handle abstract music
HarmTrace program: Harmony Analysis and Retrieval of Music
HarmTrace-Base library and test: Parsing and unambiguously representing musical chords.
haskore library, programs and test: The Haskore Computer Music System
haskore-realtime library: Routines for realtime playback of Haskore songs
haskore-supercollider library and programs: Haskore back-end for SuperCollider
haskore-synthesizer library and program: Music rendering coded in Haskell
haskore-vintage library: The February 2000 version of Haskore.
hCsound library: interface to CSound API
hemkay program: A module music mixer and player
hemkay-core library: A device independent module music mixer
hly library: Haskell LilyPond
hmidi library: Binding to the OS level MIDI services
hmt library: Haskell Music Theory
hmt-base library: Haskell Music Theory Base
hmt-diagrams library: Haskell Music Theory Diagrams
hts library: Haskell Music Typesetting
instrument-chord library: Render Instrument Chords
Jazzkell library: Library for modeling jazz improvisation.
launchpad-control library and program: High and low-level interface to the Novation Launchpad midi controller.
lilypond library: Bindings to Lilypond
live-sequencer library and programs: Live coding of MIDI music
lord library, program and test: A command line interface to online radios.
loris library: interface to Loris API
lrclib-client library and test: A Haskell client for the LrcLib API (lyrics database)
mezzo library and test: Typesafe music composition
midair library: Hot-swappable FRP
midi library and test: Handling of MIDI messages and files
midi-alsa library: Convert between datatypes of the midi and the alsa packages
midi-music-box program: Convert MIDI file to music box punch tape
midi-util library: Utility functions for processing MIDI files
midimory programs: A Memory-like (Concentration, Pairs, ...) game for tones
music-articulation library: Abstract representation of musical articulation.
music-diatonic library: Implementation of basic western musical theory objects.
music-dynamics library: Abstract representation of musical dynamics.
music-dynamics-literal library: Overloaded dynamics literals.
music-graphics library: Diagrams-based visualization of musical data structures.
music-parts library: Musical instruments, parts and playing techniques.
music-pitch library: Musical pitch representation.
music-pitch-literal library: Overloaded pitch literals.
music-preludes library, programs and test: Some useful preludes for the Music Suite.
music-score library: Musical score and part representation.
music-sibelius library: Interaction with Sibelius.
music-suite library: A set of libraries for composition, analysis and manipulation of music.
musicScroll library and program: Supply your tunes info without leaving your music player.
musicxml library: MusicXML format encoded as Haskell type and functions of reading and writting.
musicxml2 library: A representation of the MusicXML format.
netease-fm library and program: NetEase Cloud Music FM client in Haskell.
phladiprelio-general-datatype library: Extended functionality of PhLADiPreLiO
phladiprelio-general-simple library: ...
phladiprelio-rhythmicity-shared library: Allows to estimate some kind of the rhythmicity properties for the text
phladiprelio-ukrainian-simple library and program: ...
reactive-balsa library: Programmatically edit MIDI events via ALSA and reactive-banana
reactive-jack library: Process MIDI events via reactive-banana and JACK
reactive-midyim library: Process MIDI events via reactive-banana
sharc-timbre library: ...
spotify library, program and test: Spotify Web API
streamed library: Programmatically edit MIDI event streams via ALSA
synthesizer-alsa library and programs: Control synthesizer effects via ALSA/MIDI
synthesizer-llvm library, programs and test: Efficient signal processing using runtime compilation
synthesizer-midi library, program and test: Render audio signals from MIDI files or realtime messages
temporal-csound library: library to make electronic music, ...
temporal-media library: data types for temporal media
temporal-music-notation library: music notation
temporal-music-notation-demo library: generates midi from score notation.
temporal-music-notation-western library: western music notation
vivid library: Sound synthesis with SuperCollider
vivid-osc library and test: Open Sound Control encode/decode
vivid-supercollider library and test: Implementation of SuperCollider server specifications
x-dsp library: A embedded DSL for manipulating DSP languages in Haskell
YampaSynth programs: Software synthesizer
zmidi-core library: Read and write MIDI files.
zmidi-score library: Representing MIDI a simple score.

MusicBrainz

musicbrainz-email library, programs and test: Send an email to all MusicBrainz editors

Mutable State

control-dsl library and test: An alternative to monads in do-notation
do-notation-dsl library and test: An alternative to monads
foreign-var library: Encapsulating mutatable state in external libraries
linear-locks library and test: Locking primitives free of deadlocks.

MWAA

stratosphere-mwaa library: Stratosphere integration for AWS MWAA.

MySQL

hs-opentelemetry-instrumentation-persistent-mysql library: OpenTelemetry instrumentation for persistent-mysql

N2O

n2o library and test: Abstract Protocol Loop
n2o-nitro library: Nitro Elements, Events and Actions
n2o-protocols library: N2O Protocols Starter Pack
n2o-web library: N2O adapter for WebSockets

NA

tempo library, programs and test: Command-line tool to log time-tracking information into JIRA Tempo plugin

Naqsha

naqsha library and test: A library for working with anything map related.

Natural Language

festival library: C bindings plus conveniences for the festival tts system.
microsoft-translator library: Bindings to the Microsoft Translator API

Natural Language Processing

adict library and test: Approximate dictionary searching
alpino-tools library and programs: Alpino data manipulation tools
antfarm library, program and test: Referring expressions for definitions
arpa library and program: Library for reading ARPA n-gram models
ast-path library and test: vocabulary representation for predicting program properties
brillig library and program: Simple part of speech tagger
cabocha library and test
chatter library, programs and test: A library of simple NLP algorithms.
cndict library: Chinese/Mandarin <-> English dictionary, Chinese lexer.
colada library and program: Colada implements incremental word class class induction using online LDA
concraft library and program: Morphological disambiguation based on constrained CRFs
concraft-hr library and program: Part-of-speech tagger for Croatian
concraft-pl library and program: Morphological tagger for Polish
corenlp-parser library: Launches CoreNLP and parses the JSON output
crf-chain2-tiers library: Second-order, tiered, constrained, linear conditional random fields
data-named library: Data types for named entities
delta-h library and program: Online entropy-based model of lexical category acquisition.
detrospector program: Markov chain text generator
DP library: Pragmatic framework for dynamic programming
electrum-mnemonic library and test: easy to remember mnemonic for a high-entropy value
ENIG library and test: Auto Korean conjugator/adjustor/adopter/converter
estimators library: Tool for managing probability estimation
FM-SBLEX programs: A set of computational morphology tools for Swedish diachronic lexicons.
fullstop library, program and test: Simple sentence segmenter
GenI library, program and test: A natural language generator (specifically, an FB-LTAG surface realiser)
geni-gui library and program: GenI graphical user interface
geni-util library and program: Companion tools for use with the GenI surface realiser
geniconvert program: Conversion utility for the GenI generator
geniserver library and program: Simple HTTP server for GenI results
gf library, program and test: Grammatical Framework
haskell-postal library and test: Haskell binding for the libpostal library
hext library and program: a text classification library
hist-pl library and program: Umbrella package for the historical dictionary of Polish
hist-pl-dawg library: A generic, DAWG-based dictionary
hist-pl-fusion library: Merging historical dictionary with PoliMorf
hist-pl-lexicon library: A binary representation of the historical dictionary of Polish
hist-pl-lmf library: LMF parsing for the historical dictionary of Polish
hist-pl-transliter library: A simple EDSL for transliteration rules
hist-pl-types library: Types in the historical dictionary of Polish
hs-gizapp library: Haskell wrapper around the GIZA++ toolkit.
InternedData library, test and benchmark: Data interning (with compact regions where possible)
koellner-phonetic library and test: "map German words to code representing pronunciation"
language-spelling library and test: Various tools to detect/correct mistakes in words
lda library: Online Latent Dirichlet Allocation
libGenI library: A natural language generator (specifically, an FB-LTAG surface realiser)
LinguisticsTypes library, test and benchmark: Collection of types for natural language
logfloat library: Log-domain floating point numbers
luis-client library: An unofficial client for the LUIS NLP service.
mecab library: A Haskell binding to MeCab
minimorph library and test: English spelling functions with an emphasis on simplicity.
miniutter library and test: Simple English clause creation from arbitrary words
moan library: Language-agnostic analyzer for positional morphosyntactic tags
monad-ox library: Monad for observation extraction
morfette program: A tool for supervised learning of morphology
morfeusz library: Bindings to the morphological analyser Morfeusz
multext-east-msd library: MULTEXT-East morphosyntactic descriptors
mystem library and program: Bindings for Mystem morphological analyzer executabe
nanq program: Performs 漢字検定 (Japan Kanji Aptitude Test) level analysis on given Kanji.
NaturalLanguageAlphabets library, test and benchmark: Simple scoring schemes for word alignments
nerf library and program: Nerf, a named entity recognition tool based on linear-chain CRFs
NGrams program: Simple application for calculating n-grams using Google.
nkjp library and programs: Manipulating the National Corpus of Polish (NKJP)
nlp-scores library: Scoring functions commonly used for evaluation in NLP and IR
nlp-scores-scripts programs: NLP scoring command-line programs
numerals library, test and benchmark: Convert numbers to number words
numerals-base library and test: Convert numbers to number words
partage library and test: Parsing factorized
penn-treebank library: Tools for manipulating the Penn TreeBank
penntreebank-megaparsec library and test: Parser combinators for trees in the Penn Treebank format
phonetic-code library: Phonetic codes: Soundex and Phonix
polh-lexicon library and programs: A library for manipulating the historical dictionary of Polish (deprecated)
polimorf library: Handling the PoliMorf dictionary
pstemmer library and program: A Haskell Implementation of the Porter Stemmer
PTQ programs: An implementation of Montague's PTQ.
punkt library and test: Multilingual unsupervised sentence tokenization with Punkt.
rake library: Rapid Automatic Keyword Extraction (RAKE)
romkan library and test: Japanese Romaji <-> Japanese Kana conversion library
semiring program: Semirings, ring-like structures used for dynamic programming applications
sentiwordnet-parser library: Parser for the SentiWordNet tab-separated file
sequitur library, program, test and benchmark: Grammar-based compression algorithms SEQUITUR
sequor library and programs: A sequence labeler based on Collins's sequence perceptron.
snowball library, test and benchmark: Bindings to the Snowball library.
Sonnex library and test: Sonnex is an alternative to Soundex for french language
stemmer library: Haskell bindings to the Snowball stemming library.
swift-lda library: Online sampler for Latent Dirichlet Allocation
tagset-positional library: Positional tags and tagsets
textocat-api library and test: Unofficial Haskell SDK for Textocat API -- http://textocat.com
tokenize library and benchmark: Simple tokenizer for English text
toktok library and programs
tsuntsun program: Interacts with tesseract to ease reading of RAW Japanese manga.
WordNet library: Haskell interface to the WordNet database
WordNet-ghc74 library: Haskell interface to the WordNet database
XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP

Natural-language-processing

llama-cpp-hs library and test: Haskell FFI bindings to the llama.cpp LLM inference library
ngram library and program: Ngram models for compressing and classifying text.

Neovim

chromatin library, program and tests: neovim package manager
proteome library and program: Neovim Project Manager
ribosome library and test: Neovim plugin framework for Polysemy
ribosome-app library, program and test: CLI for Ribosome
ribosome-host library and test: Neovim plugin host for Polysemy
ribosome-host-test library: Test tools for Ribosome
ribosome-root test: api extensions for nvim-hs
ribosome-test library and test: Test tools for Ribosome

Neptune

stratosphere-neptune library: Stratosphere integration for AWS Neptune.

NeptuneGraph

stratosphere-neptunegraph library: Stratosphere integration for AWS NeptuneGraph.

Net

iexcloud library and test: Library for the IEX Trading API
stocks library and test: Library for the IEX Trading API
Weather library: Library for interacting with the Weather Underground JSON API.

Network

2captcha library: Haskell package for easy integration with the 2captcha API.
acolyte-grpc library and tests: gRPC interpretation for acolyte API types
adb library: Android Debug Bridge (ADB) protocol
adhoc-network library: Ad-hoc P2P network protocol
agentx library and program: AgentX protocol for write SNMP subagents
AGI library: A library for writing AGI scripts for Asterisk
airbrake library: An Airbrake notifier for Haskell
alpaca-netcode library and test: Rollback/replay NetCode for realtime, deterministic, multiplayer games.
altsvc library and test: HTTP Alternative Services
amazon-emailer programs: A queue daemon for Amazon's SES with a PostgreSQL table as a queue.
amazon-emailer-client-snap library: Client library for amazon-emailer daemon
amazonka-iam-policy library and tests: Amazon IAM Policy Document DSL and Combinators.
amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
AMI library: Low-level bindings for Asterisk Manager Interface (AMI).
amqp library, program and test: Client library for AMQP servers (currently only RabbitMQ)
amqp-conduit library and test: Conduit bindings for AMQP (see amqp package)
amqp-utils programs: AMQP toolset for the command line
amqp-worker library, program and test: Type-safe AMQP workers
anticiv library and program: This is an IRC bot for Mafia and Resistance.
apelsin program: Server and community browser for the game Tremulous
api-builder library and tests: Library for easily building REST API wrappers in Haskell
api-tools library, programs, test and benchmark: DSL for generating API boilerplate and docs
apns-http2 library and program: Apple Push Notification service HTTP/2 integration.
ApplePush library and program: Library for Apple Push Notification Service
arbor-datadog library and test: Datadog client for Haskell.
archiver library and program: Archive supplied URLs in WebCite & Internet Archive
arion-compose library, program and test: Run docker-compose with help from Nix/NixOS
arxiv library: A client for the Arxiv API
arxiv-client library and test: Tiny client for the arXiv Atom API with a simple query DSL
arxiv-client-cli program: Command line tool to search and download papers from arXiv.org
assumpta library and tests: An SMTP client library
assumpta-core library and tests: Core functionality for an SMTP client
attomail program and test: Minimal mail delivery agent (MDA) for local mail with maildir support
avahi library and program: Minimal DBus bindings for Avahi daemon (http://avahi.org)
aws library, programs and tests: Amazon Web Services (AWS) for Haskell
aws-cloudfront-signed-cookies library, program and test: Generate signed cookies for AWS CloudFront
aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
aws-dynamodb-streams library: Haskell bindings for Amazon DynamoDB Streams
aws-easy library and program: Helper function and types for working with amazonka
aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
aws-ec2-knownhosts library and programs: Capture and manage AWS EC2 known_host pubkeys
aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
aws-kinesis library and test: Bindings for Amazon Kinesis
aws-lambda library: Haskell bindings for AWS Lambda
aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
aws-ses-easy library, test and benchmark: Wrapper over Amazonka's SES
aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
aws-sns-verify library and test: Parse and verify AWS SNS messages
azure-service-api library: Haskell bindings for the Microsoft Azure Service Management API
backblaze-b2-hs library, program and test: A client library to access Backblaze B2 cloud storage in Haskell.
Barracuda library and program: An ad-hoc P2P chat program
battlenet library: API client for Battle.Net
battlenet-yesod library: Yesod integration for the battlenet package
bdcs-api library, program and test: BDCS API Server
beeminder-api library: Bindings to the beeminder.com JSON API
bet library, program and test: Betfair API bindings. Bet on sports on betting exchanges.
binary-protocol-zmq library and program: Monad to ease implementing a binary network protocol over ZeroMQ
bitcoin-api library and test: Provides access to the RPC API of Bitcoin Core
bitcoin-api-extra library and test: Higher level constructs on top of the bitcoin-api package
bitcoin-block library and test: Utility functions for manipulating bitcoin blocks
bitcoin-payment-channel library, test and benchmark: Instant, two-party Bitcoin payments
bitcoin-rpc library and test: Library to communicate with the Satoshi Bitcoin daemon
bitcoin-script library and test: Compilation, manipulation and decompilation of Bitcoin scripts
bitcoin-tx library and test: Utility functions for manipulating bitcoin transactions
bitcoin-types library and test: Provides consistent low-level types used commonly among Bitcoin implementations
bittorrent library and test: Bittorrent protocol implementation.
bodhi library: Fedora Bodhi REST client library
bronyradiogermany-common library: Common types and URIs for the BronyRadioGermany API bindings.
bronyradiogermany-streaming library: Streaming interface for the BronyRadioGermany API.
bsb-http-chunked library, tests and benchmark: Chunked HTTP transfer encoding for bytestring builders
btc-lsp library, programs and test: Lightning service provider
BufferedSocket library: A socker wrapper that makes the IO of sockets much cleaner
burrito library and test: Parse and render URI templates.
bustle programs and tests: Draw sequence diagrams of D-Bus traffic
c10k library: C10k server library using prefork
cached-json-file library: Locally cache a json file obtained by http
calamity library: A library for writing discord bots in haskell
call-haskell-from-anything library and program: Call Haskell functions from other languages via serialization and dynamic libraries
capnp library, program, test and benchmark: Cap'n Proto for Haskell
captcha-2captcha library and test: A package for integrating a variety of captcha solving services.
captcha-capmonster library and test: A package for integrating a variety of captcha solving services.
captcha-core library: A package for integrating a variety of captcha solving services.
carte program: Carte: A commandline pastebin server.
cci library, programs and tests: Bindings for the CCI networking library
ccnx library: A Haskell implementation of the CCNx network protocol.
cgi library and programs: A library for writing CGI programs
check-email library: Confirm whether an email is valid and probably existant.
clarifai library: API Client for the Clarifai API.
cloudfront-signer library: CloudFront URL signer
colchis library: Rudimentary JSON-RPC 2.0 client over raw TCP.
Combinatorrent program: A concurrent bittorrent client
commsec-keyexchange library: Key agreement for commsec.
compact-socket library: Socket functions for compact normal form.
compendium-client library: Client for the Compendium schema server
concurrent-dns-cache library, program and test: Concurrent DNS cache
conduit-connection library and test: Conduit source and sink for Network.Connection.
conduit-network-stream library: A base layer for network protocols using Conduits
conjure library and program: A BitTorrent client
connection library: Simple and easy network connections API
connection-pool library: Connection pool built on top of resource-pool and streaming-commons.
consul-haskell library and test: A consul client for Haskell
copr-api library: Copr API client libary
courier library, programs and test: A message-passing library for simplifying network applications
cr program: Code review tool
credentials library and test: Secure Credentials Storage and Distribution
credentials-cli program: Secure Credentials Administration
crypto-token library and test: crypto tokens
cryptoconditions library and test: Interledger Crypto-Conditions
crypton-connection library: Simple and easy network connection API
crypton-socks library and program: SOCKS Protocol Version 5
curl library: Haskell binding to libcurl
curl-aeson library: Communicate with web services using JSON
curlhs library and test: bindings to libcurl, the multiprotocol file transfer library
d-bus library, programs and test: Permissively licensed D-Bus client library
daemons library, programs and test: Daemons in Haskell made fun and easy
damnpacket library and test: Parsing dAmn messages
danecheck program: DANE SMTP validator
danibot library and program: Basic Slack bot framework.
datadog library and test: Datadog client for Haskell. Supports both the HTTP API and StatsD.
DBus library: D-Bus bindings
dbus library and test: A client library for the D-Bus IPC system.
dbus-client library: Monadic and object-oriented interfaces to DBus
dbus-core library: Low-level D-Bus protocol implementation
dbus-qq library and test: Quasi-quoter for DBus functions
dbus-th library: TemplateHaskell generator of DBus bindings
dgs library: Haskell front-end for DGS' bot interface
DigitalOcean library and test: A client library for the DigitalOcean API
direct-fastcgi library: Native implementation of the FastCGI protocol.
direct-http library: Native webserver that acts as a library.
discord-gateway library: An API wrapper for Discord in Haskell
discord-haskell library and programs: Write bots for Discord in Haskell
discord-haskell-voice library and programs: Voice support for discord-haskell.
discord-hs library: An API wrapper for Discord in Haskell
discord-rest library: An API wrapper for Discord in Haskell
discord-types library: Type information for discord-hs
distributed-process-ekg library: Collect node stats for EKG
distributed-process-p2p library and program: Peer-to-peer node discovery for Cloud Haskell
dmcc library and program: AVAYA DMCC API bindings and WebSockets server for AVAYA
dns library and tests: DNS library in Haskell
dns-patterns library and test: DNS name parsing and pattern matching utilities
dnsbase library, tests and benchmark: Stub DNS resolver with a typed RData model and value-based extension API
dnscache library and program: Caching DNS resolver library and mass DNS resolver utility
dnsrbl library: Asynchronous DNS RBL lookup
dnssd library: DNS service discovery bindings
do-spaces library and tests: DigitalOcean Spaces API bindings
docker library and test: An API client for docker written in Haskell
DOH library and test: Complete API bindings for DigitalOcean API V2
domain-auth library: Domain authentication library
download library and test: High-level file download based on URLs
download-curl library: High-level file download based on URLs
downloader library: A small, low-dependency library that provides turn-key file download over HTTP and HTTPS.
dresdner-verkehrsbetriebe library and program: Library and program for querying DVB (Dresdner Verkehrsbetriebe AG)
Dust library and test: Polymorphic protocol engine
Dust-tools library and programs: Network filtering exploration tools
Dust-tools-pcap programs: Network filtering exploration tools that rely on pcap
eager-sockets library: Socket operations with timeouts
eap library: Extensible Authentication Protocol (EAP)
easy-bitcoin library: types and functions for bitcoin applications
ec2-signature library and tests: The Amazon EC2 style signature calculator.
ech-config library and program: Config for TLS Encrypted Client Hello
ehlo library: Minimalistic SMTP client for Haskell
ekg library: Remote monitoring of processes
ekg-wai library: Remote monitoring of processes
electrs-client library and test: Electrs client library for Haskell
email library: Sending eMail in Haskell made easy
email-header library and test: Parsing and rendering of email and MIME headers
emailparse library and test: An email parser that will parse everything
engine-io-wai library: An @engine-io@ @ServerAPI@ that is compatible with @Wai@
engine-io-yesod library
epass library: Baisc, Erlang-like message passing supporting sockets.
erebos library and program: Decentralized messaging and synchronization
EtaMOO program: A new implementation of the LambdaMOO server
etcd library and test: Client for etcd, a highly-available key value store
Etherbunny library and program: A network analysis toolkit for Haskell
eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding
EventSocket library: Interfaces with FreeSwitch Event Socket.
eventsourced library, program and test: Server-Sent Events the UNIX way
evm-opcodes library, test and benchmark: Opcode types for Ethereum Virtual Machine (EVM)
faktory library, programs and tests: Faktory Worker for Haskell
fastcgi library: A Haskell library for writing FastCGI programs
fastirc library: Fast Internet Relay Chat (IRC) library
firebase-database library, test and benchmark: Google Firebase Database SDK
flatbuffers library, test and benchmark: Haskell implementation of the FlatBuffers protocol.
flowdock-api library, program and test: API integration with Flowdock.
fluent-logger library, test and benchmark: A structured logger for Fluentd (Haskell)
fluent-logger-conduit library: Conduit interface for fluent-logger
freddy library and test: RabbitMQ Messaging API supporting request-response
free-http library: An HTTP Client based on Free Monads.
ftp-conduit library: FTP client package with conduit interface based off http-conduit
ftphs library and program: FTP Client and Server Library
FTPLine program: A command-line FTP client.
fudgets library and programs: The Fudgets Library
full-sessions library: a monad for protocol-typed network programming
funbot program: IRC bot for fun, learning, creativity and collaboration.
funbot-client library: Report events to FunBot over a JSON/HTTP API.
funbot-ext-events library: Interact with FunBot's external events.
funbot-git-hook program: Git hook which sends events to FunBot.
futun program: Simple IP-over-UDP tunnel using TUNTAP
gbnet-hs library, test and benchmark: Transport-level networking library with zero-copy Storable serialization
gbs-downloader library, programs and test: A library for downloading data from a Great Black Swamp server
gemini-server library: A lightweight server for the Gemini protocol
generic-server library: Simple generic TCP/IP server
GeoIp library: Pure bindings for the MaxMind IP database.
gh-pocket-knife library, program and test: Script helpers for interacting with GitHub
ginsu program: Ginsu Gale Client
git-lfs library: git-lfs protocol
git-remote-ipfs library, program and test: Git remote helper to store git objects on IPFS
github library and test: Access to the GitHub API, v3.
github-data library: Access to the GitHub API, v3.
github-utils library: Useful functions that use the GitHub API
gitit library and programs: Wiki using happstack, git or darcs, and pandoc.
gitter library: Gitter.im API client
glirc library, program and test: Console IRC client
glue library, program and test: Make better services.
glue-common library and test: Make better services and clients.
glue-core library and test: Make better services and clients.
glue-ekg library and test: Make better services and clients.
glue-example program: Make better services and clients.
gnss-converters library, programs and test: GNSS Converters.
gnutls library: Bindings for GNU libgnutls
goggles library and test: Extensible interface to Web APIs
goggles-gcs library: `goggles` interface to Google Cloud Storage
gogol-admin-emailmigration library: Google Email Migration API v2 SDK.
gogol-affiliates library: Google Affiliate Network SDK.
gogol-autoscaler library: Google Compute Engine Autoscaler SDK.
gogol-cloudmonitoring library: Google Cloud Monitoring SDK.
gogol-freebasesearch library: Google Freebase Search SDK.
gogol-latencytest library: Google Cloud Network Performance Monitoring SDK.
gogol-maps-coordinate library: Google Maps Coordinate SDK.
gogol-maps-engine library: Google Maps Engine SDK.
gogol-photoslibrary library: Google Photos Library SDK.
gogol-prediction library: Google Prediction SDK.
gogol-resourceviews library: Google Compute Engine Instance Groups SDK.
gogol-taskqueue library: Google TaskQueue SDK.
gogol-useraccounts library: Google Cloud User Accounts SDK.
google-oauth2-easy library, test and benchmark: Opininated use of Google Authentication for ease
GoogleDirections library: Haskell Interface to Google Directions API
gopher-proxy program: proxy gopher over http
gopherbot program: Spidering robot to download files from Gopherspace
grapesy library, tests and benchmark: Native Haskell implementation of the gRPC framework
graphula library and test: A simple interface for generating persistent data and linking its dependencies
graphula-core library and test: A declarative library for describing dependencies between data
greskell-websocket library and tests: Haskell client for Gremlin Server using WebSocket serializer
GrowlNotify library and program: Notification utility for Growl.
grpc-haskell library, programs, test and benchmark: Haskell implementation of gRPC layered on shared C library.
grpc-haskell-core library and test: Haskell implementation of gRPC layered on shared C library.
grpc-spec library and test: Implementation of the pure part of the gRPC spec
gsasl library: Bindings for GNU libgsasl
gssapi library: libgssapi and libkrb5 bindings for haskell
gssapi-wai library: WAI Middleware for SPNEGO authentiaction
gtkrsync programs: Gnome rsync progress display
Hach library and programs: Simple chat
HackMail library and program: A Procmail Replacement as Haskell EDSL
hailgun library: Mailgun REST api interface for Haskell.
hailgun-send program: A program to send emails throught the Mailgun api.
hamtsolo program: Intel AMT serial-over-lan (SOL) client
handa-gdata library and program: Library and command-line utility for accessing Google services and APIs.
handwriting library, program and test: API Client for the handwriting.io API.
hascat program: Hascat Web Server
hascat-lib library: Hascat Package
hascat-setup library and program: Hascat Installation helper
hascat-system library: Hascat System Package
hask-redis-mux library and tests: A RESP protocol implementation and multiplexed Redis client library
haskakafka library, programs and test: Kafka bindings for Haskell
haskbot-core library and test: Easily-extensible chatbot for Slack messaging service
haskell-aliyun library: haskell client of aliyun service.
haskell-ftp library and program: A Haskell ftp server with configurable backend.
haskell-modbus library and test: A cereal-based parser for the Modbus protocol
haskell-openflow library and test: OpenFlow protocol in Haskell
haskell-opentimestamps library and test: Haskell implementation of OpenTimestamps
haskell-opentimestamps-client library and program: Haskell implementation of a basic OpenTimestamps client
haskell-tor library, program and test: A Haskell Tor Node
haskell-xmpp library and programs: Haskell XMPP (eXtensible Message Passing Protocol, a.k.a. Jabber) library
HaskellNet library: Client support for POP3, SMTP, and IMAP
HaskellNet-SSL library and program: Helpers to connect to SSL/TLS mail servers with HaskellNet
HaskellTorrent program: A concurrent bittorrent client
haskheap library: Haskell bindings to refheap.
haskoin library and test: Implementation of the Bitcoin protocol.
haskoin-bitcoind library: An adapter for haskoin to network-bitcoin
haskoin-core library and test: Bitcoin & Bitcoin Cash library for Haskell
haskoin-crypto library and test: Implementation of Bitcoin cryptographic primitives.
haskoin-node library and test: P2P library for Bitcoin and Bitcoin Cash
haskoin-protocol library and test: Implementation of the Bitcoin network protocol messages
haskoin-script library and test: Implementation of Bitcoin script parsing and evaluation
haskoin-store library, program and test: Storage and index for Bitcoin and Bitcoin Cash
haskoin-store-data library and test: Data for Haskoin Store
haskoin-util library and test: Utility functions for the Network.Haskoin project
haskoin-wallet library, program and test: Lightweight CLI wallet for Bitcoin and Bitcoin Cash
hatexmpp3 program: XMPP client with 9P and (optionally) GTK interfaces
hats library, program, test and benchmark: Haskell client for the NATS messaging system
haxl-facebook library and test: An example Haxl data source for accessing the Facebook Graph API
haxr library: XML-RPC client and server library.
hbeanstalk library: Client for the beanstalkd workqueue service.
hcoap library, programs and test: CoAP implementation for Haskell.
heddit library, programs and tests: Reddit API bindings
helics library and program: New Relic® agent SDK wrapper for Haskell.
helics-wai library and program: New Relic® agent SDK wrapper for wai.
helix library and test: Web development micro framework for haskell with typesafe URLs
hellage programs: Distributed hackage mirror
hellnet library and programs: Simple, distributed, anonymous data sharing network.
henet library: Bindings and high level interface for to ENet v1.3.9
Hermes library: Message-based middleware layer
hexpress library: An express-like http framework
heyefi program and test: A server for Eye-Fi SD cards.
HGamer3D-Enet-Binding library: Enet Binding for HGamer3D
hgearman library: A Gearman client for Haskell.
hGelf library: Haskell GELF library
hgithub library and program: Haskell bindings to the GitHub API
hgopher library: Gopher server
hgreet library: Haskell module to interact with the greetd daemon trough it's IPC protocol.
hichi programs: haskell robot for IChat protocol
hinquire library and test: Generate armet style query strings.
hircules program: IRC client
hMollom library: Library to interact with the @Mollom anti-spam service
HNM library and program: Happy Network Manager
hoauth library: A Haskell implementation of OAuth 1.0a protocol.
hoauth2 library and test: Haskell OAuth2 authentication client
hoauth2-demo program: hoauth2 demo application
hoauth2-providers library and test: OAuth2 identity providers
hoauth2-providers-tutorial library and program: Tutorial for the hoauth2-providers module
hoauth2-tutorial programs: Tutorial for using hoauth2
hog program: Simple IRC logger bot.
hoggl library and program: Bindings to the Toggl.com REST API
Holumbus-Distribution library and programs: intra- and inter-program communication
hookup library: Abstraction over creating network connections with SOCKS5 and TLS
hostaddress library: Network Host Addresses
HostAndPort library, tests and benchmark: Parser for host and port pairs like localhost:22
hostname library: A very simple package providing a cross-platform means of determining the hostname
hostname-validate library: Validate hostnames e.g. localhost or foo.co.uk.
hosts-server program: An dns server which is extremely easy to config.
hpodder program: Podcast Aggregator (downloader)
hreq-client library, program and tests: A Type dependent Highlevel HTTP client library.
hreq-conduit library and tests: Conduit streaming support for Hreq.
hreq-core library and test: Core functionality for Hreq Http client library
hs-json-rpc library: JSON-RPC client library
hs-twitterarchiver program: Commandline Twitter feed archiver
hS3 library and program: Interface to Amazon's Simple Storage Service (S3)
hsaml2 library and test: OASIS Security Assertion Markup Language (SAML) V2.0
hscd library and program: Command line client and library for SoundCloud.com
hsdns library and programs: Asynchronous DNS Resolver
hsdns-cache library: Caching asynchronous DNS resolver.
hsendxmpp program: sendxmpp clone, sending XMPP messages via CLI
hserv program: Simple http server in haskell.
hsftp library, program and test: A SFTP client tool for secure file transfer operations
hsgnutls library: Library wrapping the GnuTLS API.
hsgnutls-yj library: Library wrapping the GnuTLS API.
hSimpleDB library: Interface to Amazon's SimpleDB service.
hsmtpclient library: Simple SMTP Client
hsns program: a miniature network sniffer
hsnsq library: Haskell NSQ client.
hsp-cgi library: Facilitates running Haskell Server Pages web pages as CGI programs.
hspr-sh library: Session handler for HSP
hspread library: A client library for the spread toolkit
hsrelp library: RELP (Reliable Event Logging Protocol) server implementation
hssh library, program and test: SSH protocol implementation
hstorchat library, program and test: Distributed instant messaging over Tor
hstox library, programs and test: A Tox protocol implementation in Haskell
hstratus library, program and test: Unified CLI for iCloud services
hstratus-auth library and test: Authenticate with iCloud
hstratus-drive library and test: Access iCloud Drive
hstratus-notes library and test: Access iCloud Notes
hszephyr library: Simple libzephyr bindings
htalkat program: Talk across TLS
HTTP library and test: A library for client-side HTTP
http-attoparsec library: Attoparsec parsers for http-types.
http-barf library and test: a library to make http requests without worrying much
http-client library and tests: An HTTP client engine
http-client-auth library: HTTP authorization (both basic and digest) done right
http-client-brread-timeout library: Http client with time-limited brRead
http-client-conduit library: Frontend support for using http-client with conduit (deprecated)
http-client-effectful library: Effectful bindings for the http-client library
http-client-extra library: wrapper for http-client exposing cookies
http-client-multipart library: Generate multipart uploads for http-client. (deprecated)
http-client-openssl library and test: http-client backend using the OpenSSL library.
http-client-overrides library, program and test: HTTP client overrides
http-client-request-modifiers library: Convenient monadic HTTP request modifiers
http-client-restricted library: restricting the servers that http-client will use
http-client-rustls library and test: http-client TLS backend using Rustls
http-client-session library: A simple abstraction over the "http-client" connection manager
http-client-tls library, test and benchmark: http-client backend using the connection package and tls library
http-client-websockets library and test: Glue code for http-client and websockets
http-date library and tests: HTTP Date parser/formatter
http-directory library, program and test: http directory listing library
http-dispatch library and test: High level HTTP client for Haskell
http-exchange-instantiations library and programs: Instantiations of http-exchange
http-kit library and test: A low-level HTTP library
http-listen library: Listen to HTTP requests and handle them in arbitrary ways.
http-monad library and program: Monad abstraction for HTTP allowing lazy transfer and non-I/O simulation
http-pony library: A type unsafe http library
http-pony-serve-wai library: Serve a WAI application with http-pony
http-pony-transformer-case-insensitive library: Tag http headers as case insensitive
http-pony-transformer-http library: Transform raw TCP stream to a basic HTTP type
http-pony-transformer-startline library: transform HTTP startlines to tuples
http-querystring library and tests: The HTTP query builder.
http-semantics library: HTTP semantics library
http-server library: A library for writing Haskell web servers.
http-shed library and program: A simple websever with an interact style API
HTTP-Simple library: DEPRECATED Enable simple wrappers to Network.HTTP
http-slim library: A library for client/server HTTP with TLS support
http-tower-hs library and test: Composable HTTP client middleware for Haskell, built on tower-hs
http-types library and tests: Generic HTTP types for Haskell (for both client and server code).
http-wget library: ...
http2 library, programs, tests and benchmark: HTTP/2 library
http2-client-grpc library and test: Implement gRPC-over-HTTP2 clients.
http2-grpc-proto-lens library: Encoders based on `proto-lens` for gRPC over HTTP2.
http2-grpc-proto3-wire library: Encoders based on `proto3-wire` for gRPC over HTTP2.
http2-grpc-types library: Types for gRPC over HTTP2 common for client and servers.
http2-tls library and programs: Library for HTTP/2 over TLS
http3 library, programs and test: HTTP/3 library
httpd-shed library and program: A simple web-server with an interact style API
hulk library and programs: IRC server written in Haskell.
hums program: Haskell UPnP Media Server
hurl library and programs: Haskell URL resolver
hurriyet library and test: Haskell bindings for Hurriyet API
hw-ip library, program and tests: Library for manipulating IP addresses and CIDR blocks
hwall-auth-iitk program: Initial version of firewall Authentication for IITK network.
hwormhole library, program and test: magic-wormhole client
HXMPP library and program: A (prototyped) easy to use XMPP library
hxmppc program: Haskell XMPP (Jabber Client) Command Line Interface (CLI)
hyena library: Simple web application server
hyperbole library, program and test: Interactive HTML apps using type-safe serverside Haskell
hyperbole-oauth2 library: OAuth2 Support for Hyperbole
iap-verifier library: A simple wrapper of In-App-Purchase receipt validate APIs.
ib-api library and program: An API for the Interactive Brokers Trading Workstation written in pure Haskell
idnaparse program: IDNA-aware DNS-name lint and reporter
ihttp library and program: Incremental HTTP iteratee
imagepaste program: Command-line image paste utility
imap library and test: An efficient IMAP client library, with SSL and streaming
imapget program: Downloads email from imap SSL servers.
io-streams library and test: Simple, composable, and easy-to-use stream I/O
io-streams-haproxy library and test: HAProxy protocol 1.5 support for io-streams
ip-quoter library and test: Quasiquoter for IP addresses
ip6addr program: Commandline tool to deal with IPv6 address text representations
ipfs library and test: Access IPFS locally and remotely
ipfs-api library: Auto-generated IPFS HTTP API
ipldm library: The InterPlanetary Linked Data Model and codec formats.
iproute library and test: IP Routing Table
IPv6Addr library and test: Library to deal with IPv6 address text representations.
IPv6DB library, program and test: A RESTful microService for IPv6-related data
Irc library and test: DSL for IRC bots
irc library and test: A small library for parsing IRC messages.
irc-bytestring library: serialization and parsing of IRC messages
irc-client library: An IRC client library.
irc-conduit library: Streaming IRC message library using conduits.
irc-core library and test: IRC core library for glirc
irc-ctcp library: A CTCP encoding and decoding library for IRC clients.
irc-dcc library and test: A DCC message parsing and helper library for IRC clients
irc-fun-bot library: Library for writing fun IRC bots.
irc-fun-client library: Another library for writing IRC clients.
irc-fun-color library and test: Add color and style decorations to IRC messages.
irc-fun-messages library: Types and functions for working with the IRC protocol.
irc-fun-types library: Common types for IRC related packages
ircbot library and program: A library for writing IRC bots
iri library and test: RFC-compliant universal resource identifier library (URL, URI, IRI)
iron-mq library: Iron.IO message queueing client library
ismtp library: Advanced ESMTP library
iterio-server library: Library for building servers with IterIO
iwlib library: Bindings for the iw C library
iyql program: CLI (command line interface) to YQL
javascript-bridge library, programs and test: Remote Monad for JavaScript on the browser
jmacro-rpc library: JSON-RPC clients and servers using JMacro, ...
jmacro-rpc-happstack library: Happstack backend for jmacro-rpc
jmacro-rpc-snap library: Snap backend for jmacro-rpc
jobqueue library and test: A job queue library
jordan-openapi library and test: OpenAPI Definitions for Jordan, Automatically
json-api library and test: Utilities for generating JSON-API payloads
json-api-lib library and test: Utilities for generating JSON-API payloads
json-rpc library, programs and test: Fully-featured JSON-RPC 2.0 library
json-rpc-client library, programs and test: JSON-RPC 2.0 on the client side.
json-rpc-generic library and test: Generic encoder and decode for JSON-RPC
json-rpc-server library, program and test: JSON-RPC 2.0 on the server side.
jsonrpc library and test: JSON-RPC 2.0 types and type classes for Haskell
jsonrpc-tinyclient library: Tiny JSON-RPC client for Haskell Web3 library.
k8s-wrapper library and test: Application wrapper for the k8s environment
kademlia library and test: An implementation of the Kademlia DHT Protocol
kafka-client library and tests: Low-level Haskell client library for Apache Kafka 0.7.
kafka-client-sync library and test: Synchronous Kafka Client
kafka-device-vrpn library and program: VRPN events via a Kafka message broker
kafka-effectful library, programs and test: Effectful effects for hw-kafka-client
keep-alive library and test: TCP keep alive implementation
keter-rate-limiting-plugin library and test: Simple Keter rate limiting plugin.
koji library: Koji buildsystem XML-RPC API bindings
koofr-client library: Client to Koofr API
kraken library: Kraken.io API client
krpc library, test and benchmark: KRPC protocol implementation
lambda-bridge library and program: A bridge from Haskell (on a CPU) to VHDL on a FPGA.
language-avro library and test: Language definition and parser for AVRO files.
language-protobuf library: Language definition and parser for Protocol Buffers.
latest-npm-version library, program and test: Find the latest version of a package on npm
LDAP library, program and test: Haskell binding for C LDAP API
ldap-client library and test: Pure Haskell LDAP Client Library
ldap-client-og library and test: Pure Haskell LDAP Client Library
ldapply program: LDIF idempotent apply tool
LDAPv3 library and test: Lightweight Directory Access Protocol (LDAP) version 3
legion library: Distributed, stateful, homogeneous microservice framework.
libjenkins library and tests: Jenkins API interface
libmpd library and test: An MPD client library.
librato library: Bindings to the Librato API
libravatar library: Use Libravatar, the decentralized avatar delivery service
libretls library and test: libtls bindings
libssh library: libssh bindings
libssh2 library and program: FFI bindings to libssh2 SSH2 client library (http://libssh2.org/)
libssh2-conduit library and program: Conduit wrappers for libssh2 FFI bindings (see libssh2 package).
libtelnet library and program: Bindings to libtelnet
line library and test: Haskell SDK for the LINE API
line-bot-sdk library and test: Haskell SDK for LINE Messaging API
linear-socket library and test: Typed sockets
link-canonical library and test: URL canonicalization library for semantic link identity
link-canonical-effectful library and test: Effectful integration for link-canonical
linklater library and test: A Haskell library for the Slack API
linode library and test: Bindings to the Linode API
linode-v4 library and test: Haskell wrapper for the Linode v4 API
linx-gateway library, program and test: Implementation of the Enea LINX gateway protocol.
llama-cpp-haskell library and program: Haskell bindings for the llama.cpp llama-server and a simple CLI
lnd-client library, program and test: Lightning Network Daemon (LND) client library for Haskell
local-address library: Functions to get local interface address
logstash library: Logstash client library for Haskell
loshadka program: Minecraft 1.7 server proxy that answers to queries when the server is offline
loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
ltiv1p1 library: Partial implementation of a service provider for LTI 1.1.
Lucu library and program: HTTP Daemonic Library
machines-amazonka library: Machine transducers for Amazonka calls.
majordomo library and programs: Majordomo protocol for ZeroMQ
manatee-browser library and program: Browser extension for Manatee.
manatee-curl library and program: Download Manager extension for Manatee.
manatee-terminal library and program: Terminal Emulator extension for Manatee.
mandrill library and test: Library for interfacing with the Mandrill JSON API
matrix-client library and test: A matrix client library
matsuri program: ncurses XMPP client
mcp-server library, programs and test: Library for building Model Context Protocol (MCP) servers
mcpi library and programs: Connect to MineCraft running on a Raspberry PI.
mDNSResponder-client library and test: Library for talking to the mDNSResponder daemon.
mech library: mecha are the most complex composite machines known to humanity, lets build them well!
Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
memcache-conduit library and programs: Conduit library for memcache procotol
memcache-haskell library, programs and test: Memcache procotol library
memcached library: haskell bindings for memcached
memory-hexstring library: Hex-string type for Haskell Web3 library.
messagepack-rpc library: Message Pack RPC over TCP
metricsd-client library: Client for the metrics aggregator Metricsd
metro library: A simple tcp and udp socket server framework
Mhailist programs: Haskell mailing list manager
micro-gateway library and program: A Micro service gateway.
mighttpd programs: Simple Web Server in Haskell
mighttpd2 library, programs and test: High performance web server on WAI/warp
milena library and test: A Kafka client for Haskell.
minicurl library and test: Minimal bindings to libcurl
minio-hs library, programs and tests: A MinIO Haskell Library for Amazon S3 compatible cloud storage.
minions program: A fast parallel ssh tool
mock-httpd program: A HTTP server for testing HTTP clients
moesocks program: A functional firewall killer
monad-connect library: Transformer for TCP connection with TLS and SOCKS support
montage library: Riak Resolution Proxy
montage-client library: Riak Resolution Proxy Client
mosquitto-hs library: Mosquitto client library bindings
mpd-current-json library and program: Print current MPD song and status as JSON
mptcp library and test: Datastructures to describe TCP and MPTCP connections
mptcp-pm library, program and test: A Multipath TCP path manager
mptcpanalyzer library, program and test: A Multipath TCP analyzer
mqtt library, tests and benchmarks: An MQTT protocol implementation.
mqtt-hs library: A MQTT client library.
msgpack-rpc library and test: A MessagePack-RPC Implementation
mtgoxapi library and test: Library to communicate with Mt.Gox
mu-avro library and program: Avro serialization support for Mu microservices
mu-graphql library and program: GraphQL support for Mu
mu-grpc-client library: gRPC clients from Mu definitions
mu-grpc-common library: gRPC for Mu, common modules for client and server
mu-grpc-server library and program: gRPC servers for Mu definitions
mu-kafka library: Utilities for interoperation between Mu and Kafka
mu-lens library: Lenses for @mu-schema@ terms
mu-optics library: Optics for @mu-schema@ terms
mu-persistent library: Utilities for interoperation between Mu and Persistent
mu-prometheus library: Metrics support for Mu using Prometheus
mu-protobuf library and program: Protocol Buffers serialization and gRPC schema import for Mu microservices
mu-rpc library: Protocol-independent declaration of services and servers.
mu-schema library: Format-independent schemas for serialization
mu-servant-server library and program: Servant servers for Mu definitions
mu-tracing library: Tracing support for Mu
multiaddr library and test: A network address format
multipart library: Parsers for the HTTP multipart format
MusicBrainz library: interface to MusicBrainz XML2 and JSON web services
mvclient library: Client library for metaverse systems like Second Life
mybitcoin-sci library: Binding to mybitcoin.com's Shopping Cart Interface.
n-m library and program: Utility to call iwconfig.
n2o library and test: Abstract Protocol Loop
n2o-nitro library: Nitro Elements, Events and Actions
n2o-protocols library: N2O Protocols Starter Pack
n2o-web library: N2O adapter for WebSockets
nakadi-client library and test: Client library for the Nakadi Event Broker
namecoin-update library and program: Tool to keep namecoin names updated and well
nanomsg-haskell library, test and benchmarks: Bindings to the nanomsg library
nationstates library: NationStates API client
nats-client library, program, test and benchmark: Another Haskell client for NATS (https://nats.io)
nats-queue library and test: Haskell API for NATS messaging system
neko-obfs program: a TCP tunnel with packet length obfuscation
net-concurrent library: Concurrent over the network execution library
net-mqtt library, programs and test: An MQTT Protocol Implementation.
net-mqtt-lens library and test: Optics for net-mqtt
net-mqtt-rpc library and program: Make RPC calls via an MQTT broker.
netclock library: Netclock protocol
netcode-io library and programs: Bindings to the low-level netcode.io library.
netcore library, test and benchmark: The NetCore compiler and runtime system for OpenFlow networks.
netlines library and program: Enumerator tools for text-based network protocols
netrc library and test: Parser for .netrc files
NetSNMP library and test: Bindings for net-snmp's C API for clients
netspec library: Simplify static Networking tasks
netstring-enumerator library: Enumerator-based netstring parsing
nettle-frp library: FRP for controlling networks of OpenFlow switches.
nettle-netkit library: DSL for describing OpenFlow networks, and a compiler generating NetKit labs.
nettle-openflow library: OpenFlow protocol messages, binary formats, and servers.
netw library and tests: Binding to C socket API operating on bytearrays.
network library and test: Low-level networking interface
network-address library, program and test: IP data structures and textual representation
network-anonymous-i2p library and test: Haskell API for I2P anonymous networking
network-anonymous-tor library, program and test: Haskell API for Tor anonymous networking
network-attoparsec library and test: Utility functions for running a parser against a socket
network-bitcoin library and test: An interface to bitcoind.
network-bsd library: POSIX network database (<netdb.h>) API
network-builder library, program and test: Linux NetworkNameSpace Builder
network-byte-order library: Network byte order utilities
network-bytestring library: Fast, memory-efficient, low-level networking
network-can library, programs and test: CAN bus networking
network-conduit library: Stream socket data using conduits. (deprecated)
network-conduit-tls library and test: Create TLS-aware network code with conduits
network-connection library: A wrapper around a generic stream-like connection
network-control library and test: Library to control network protocols
network-data library: Library for network data structures and their serialization.
network-dbus library: D-Bus
network-dns library and program: Domain Name System data structures
network-effectful library: Adaptation of the network library for the effectful ecosystem.
network-fancy library: Networking support with a cleaner API
network-house library: data and parsers for Ethernet, TCP, UDP, IPv4, IPv6, ICMP, DHCP, TFTP
network-info library: Access the local computer's basic network configuration
network-interfacerequest library: Haskell bindings for the ifreq structure
network-ip library and test: Internet Protocol data structures
network-light library and test: A slimmed down version of network
network-messagepack-rpc-websocket library and test: WebSocket backend for MessagePack RPC
network-minihttp library: A ByteString based library for writing HTTP(S) servers and clients.
network-msg library: Recvmsg and sendmsg bindings.
network-multicast library: Simple multicast library
network-netpacket library: Haskell bindings for low-level packet sockets (AF_PACKET)
Network-NineP library: High-level abstraction over 9P protocol
network-packet-linux library and tests: Types for working with Linux packet sockets
network-protocol-xmpp library: Client library for the XMPP protocol.
network-run library: Simple network runner library
network-server library and program: A light abstraction over sockets & co. for servers
network-service library and program: Provide a service at the data type level.
network-simple library: Simple network sockets usage patterns.
network-simple-sockaddr library: network-simple for resolved addresses
network-simple-tls library: Simple interface to TLS secured network sockets.
network-simple-ws library: Simple interface to WebSockets.
network-simple-wss library: Simple interface to TLS secured WebSockets.
network-socket-options library: Type-safe, portable alternative to getSocketOption/setSocketOption
network-transport library: Network abstraction layer
network-transport-amqp library and tests: AMQP-based transport layer for distributed-process (aka Cloud Haskell)
network-transport-composed library: Compose network transports
network-transport-inmemory library and tests: In-memory instantiation of Network.Transport
network-transport-quic library, test and benchmark: Networking layer for Cloud Haskell based on QUIC
network-transport-tcp library and tests: TCP instantiation of Network.Transport
network-transport-tests library: Unit tests for Network.Transport implementations
network-transport-zeromq library, programs, tests and benchmarks: ZeroMQ backend for network-transport
network-types-icmp library and test: Types for representing ICMP and ICMPv6 messages.
network-udp library: UDP library
network-unexceptional library: Network functions that do not throw exceptions
network-uri library and tests: URI manipulation
network-uri-flag library: Pseudo-package encapsulating flag(network-uri) Cabal boilerplate
network-uri-json library and test: FromJSON and ToJSON Instances for Network.URI
network-uri-lenses library: Lenses for network-uri
network-uri-static library and test: A small utility to declare type-safe static URIs
network-voicetext library: VoiceText Web API wrapper
network-wait library and tests: Lightweight library for waiting on networked services to become available.
network-websocket library and program: WebSocket library
networked-game library: Networked-game support library
ngx-export library: Helper module for Nginx Haskell module
ngx-export-distribution library and program: Build custom libraries for Nginx Haskell module
ngx-export-healthcheck library: Active health checks and monitoring of Nginx upstreams
ngx-export-log library: Native Nginx logging from configuration files and Haskell handlers
ngx-export-tools library: Extra tools for Nginx Haskell module
ngx-export-tools-extra library: More extra tools for Nginx Haskell module
nist-beacon library: Haskell interface to the nist random beacon.
nntp library: Library to connect to an NNTP Server
nostr library, programs and test: Nostr library
nova-net library, test and benchmark: General-purpose reliable UDP with C99 hot path and Haskell protocol logic
ntp-control library and test: Client library for NTP control messaging
ntrip-client library and program: NTRIP client.
nylas library: Client for the Nylas API
oauth2-jwt-bearer library and test: OAuth2 jwt-bearer client flow as per rfc7523
oauthenticated library and test: Simple OAuth for http-client
octohat library, program and test: A tested, minimal wrapper around GitHub's API.
ollama-haskell library, programs, tests and benchmark: Industry-grade Haskell client for the Ollama API
om-legion library: Legion Framework.
om-socket library and test: Socket utilities.
on-demand-ssh-tunnel library and program: Program that sends traffic through SSH tunnels on-demand
ONC-RPC library and program: ONC RPC (aka Sun RPC) and XDR library
opc-xml-da-client library and test: OPC XML-DA Client
opendht-hs library: Haskell bindings for OpenDHT
openflow library: OpenFlow
openid library and program: An implementation of the OpenID-2.0 spec.
openid-connect library, program and test: An OpenID Connect library that does all the heavy lifting for you
opensource library and test: Haskell API Wrapper for the Open Source License API
openssl-streams library and test: OpenSSL network support for io-streams.
orchid library: Haskell Wiki Library
orchid-demo program: Haskell Wiki Demo
ory-hydra-client library and test: Auto-generated ory-hydra API Client
osm-download library: Download Open Street Map tiles
pagerduty library: Client library for PagerDuty Integration and REST APIs.
pagure library: Pagure REST client library
pan-os-syslog library, program, test and benchmark: Parse syslog traffic from PAN-OS
patterns library: Common patterns in message-oriented applications
paypal-api library: PayPal API, currently supporting "ButtonManager"
paypal-rest-client library: A client to connect to PayPal's REST API (v1)
pb program: pastebin command line application
pcap library: A system-independent interface for user-level packet capture
pcap-conduit library: Conduit <-> libpcap
pcap-enumerator library: Convert a pcap into an enumerator.
pdc library: Fedora Product Definition Center service
percent-encoder library, test and benchmark: Percent encode/decode ByteStrings
peyotls library and tests: Pretty Easy YOshikuni-made TLS library
peyotls-codec library: Codec parts of Pretty Easy YOshikuni-made TLS library
pgdl program: browse directory listing webpages and download files from them.
pia-forward program: Set up port forwarding with the Private Internet Access VPN service.
ping library and program: icmp echo requests
pinpon library, programs and tests: A gateway for various cloud notification services
pipes-kafka library: Kafka in the Pipes ec