Javet is Java + V8 (JAVa + V + EighT). It is an awesome way of embedding Node.js and V8 in Java.

If you like my work, please Star this project. And, you may follow me @sjtucaocao, or visit https://blog.caoccao.com/ or https://caoccao.blogspot.com/. And the official support channel is at discord.

💖 If you like my work, please donate to support me. By the way, I'm no longer able to renew my JetBrains open-source license with this project. Thank you for supporting Javet.

Major Features

CPU Arch	Android	Linux	MacOS	Windows
x86	✔️	❌	❌	❌
x86_64	✔️	✔️	✔️	✔️
arm	✔️	❌	❌	❌
arm64	✔️	✔️	✔️	❌

Node.js v24.18.0 + V8 v15.1.206.11
i18n and non-i18n
Dynamic switch between Node.js and V8 mode
Polyfill V8 mode with Javenode
V8 API exposure in JVM
JavaScript and Java interop
Native BigInt and Date
Javet engine pool
Easy spring integration
Live debug with Chrome DevTools
AST analysis with swc4j
JS, TS, JSX, TSX transformation and transpilation with swc4j
Enhance JVM via Byte-code with JavetBuddy
Live interaction with JavetShell

Quick Start

Dependency

Maven

<!-- Core (Must-have) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- Node.js Linux (x86_64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-node-linux-x86_64</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- Node.js Linux (arm64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-node-linux-arm64</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- Node.js Mac OS (x86_64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-node-macos-x86_64</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- Node.js Mac OS (arm64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-node-macos-arm64</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- Node.js Windows (x86_64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-node-windows-x86_64</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- V8 Linux (x86_64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-v8-linux-x86_64</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- V8 Linux (arm64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-v8-linux-arm64</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- V8 Mac OS (x86_64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-v8-macos-x86_64</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- V8 Mac OS (arm64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-v8-macos-arm64</artifactId>
    <version>5.0.10</version>
</dependency>
<!-- V8 Windows (x86_64) -->
<dependency>
    <groupId>com.caoccao.javet</groupId>
    <artifactId>javet-v8-windows-x86_64</artifactId>
    <version>5.0.10</version>
</dependency>

Gradle Kotlin DSL

implementation("com.caoccao.javet:javet:5.0.10") // Core (Must-have)
implementation("com.caoccao.javet:javet-node-linux-arm64:5.0.10")
implementation("com.caoccao.javet:javet-node-linux-x86_64:5.0.10")
implementation("com.caoccao.javet:javet-node-macos-arm64:5.0.10")
implementation("com.caoccao.javet:javet-node-macos-x86_64:5.0.10")
implementation("com.caoccao.javet:javet-node-windows-x86_64:5.0.10")
implementation("com.caoccao.javet:javet-v8-linux-arm64:5.0.10")
implementation("com.caoccao.javet:javet-v8-linux-x86_64:5.0.10")
implementation("com.caoccao.javet:javet-v8-macos-arm64:5.0.10")
implementation("com.caoccao.javet:javet-v8-macos-x86_64:5.0.10")
implementation("com.caoccao.javet:javet-v8-windows-x86_64:5.0.10")

Gradle Groovy DSL

implementation 'com.caoccao.javet:javet:5.0.10' // Core (Must-have)
implementation 'com.caoccao.javet:javet-node-linux-arm64:5.0.10'
implementation 'com.caoccao.javet:javet-node-linux-x86_64:5.0.10'
implementation 'com.caoccao.javet:javet-node-macos-arm64:5.0.10'
implementation 'com.caoccao.javet:javet-node-macos-x86_64:5.0.10'
implementation 'com.caoccao.javet:javet-node-windows-x86_64:5.0.10'
implementation 'com.caoccao.javet:javet-v8-linux-arm64:5.0.10'
implementation 'com.caoccao.javet:javet-v8-linux-x86_64:5.0.10'
implementation 'com.caoccao.javet:javet-v8-macos-arm64:5.0.10'
implementation 'com.caoccao.javet:javet-v8-macos-x86_64:5.0.10'
implementation 'com.caoccao.javet:javet-v8-windows-x86_64:5.0.10'

For more detail, please visit the installation page.

Hello Javet

// Node.js Mode
try (V8Runtime v8Runtime = V8Host.getNodeInstance().createV8Runtime()) {
    System.out.println(v8Runtime.getExecutor("'Hello Javet'").executeString());
}
// V8 Mode
try (V8Runtime v8Runtime = V8Host.getV8Instance().createV8Runtime()) {
    System.out.println(v8Runtime.getExecutor("'Hello Javet'").executeString());
}

License

APACHE LICENSE, VERSION 2.0