Database

In-process databases usable directly from Python.

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Row number					Tags
1	duckdb Analytical	58,433,045	40,323	2026-08-17	Analytical Database Database & Storage	→
	An in-process SQL OLAP database management system; optimized for analytics and fast queries, similar to SQLite but for analytical workloads.
	duckdb/github.com/duckdb/duckdb /2026-08-17 /58,433,045 downloads/month
2	chromadb Vector	12,540,806	29,077	2026-08-17	Vector Database Database & Storage	→
	An open-source embedding database for building AI applications with embeddings and semantic search.
	chroma-core/github.com/chroma-core/chroma /2026-08-17 /12,540,806 downloads/month
3	lancedb Vector	9,273,697	11,170	2026-08-17	Vector Database Database & Storage	→
	A developer-friendly embedded retrieval database for multimodal AI.
	lancedb/github.com/lancedb/lancedb /2026-08-17 /9,273,697 downloads/month
4	tinydb Key-Value & Document	5,663,197	7,553	2026-08-10	Key-Value & Document Database Database & Storage	→
	A tiny, document-oriented database.
	msiemens/github.com/msiemens/tinydb /2026-08-10 /5,663,197 downloads/month
5	chdb Analytical	3,245,043	2,870	2026-08-17	Analytical Database Database & Storage	→
	In-process OLAP SQL engine with the full ClickHouse dialect, zero-copy pandas/Arrow interop, and federation to remote ClickHouse clusters via `remoteSecure()`.
	chdb-io/github.com/chdb-io/chdb /2026-08-17 /3,245,043 downloads/month
6	zvec Vector	43,239	15,453	2026-08-17	Vector Database Database & Storage	→
	An embedded vector database for on-device RAG and edge AI, the SQLite of vector databases.
	alibaba/github.com/alibaba/zvec /2026-08-17 /43,239 downloads/month

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