Welcome to Elide

Elide is a high-performance multi-language software runtime powered by GraalVM. Here you can find reference docs, guides, code samples, and more.

Java & Kotlin

Elide supports Java and Kotlin as first-class citizens.

Learn more

Web

Build and serve with incredible speed and flexibility.

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Highlights

Elide is a multi-lang toolchain →

You can install dependencies, build your code, and ship your code.

You install Elide on your machine as a standalone binary with minimal runtime dependencies.

You can install it on macOS or Linux with this one-liner:

 curl -sSL --tlsv1.2 elide.sh | bash -s -

Elide is designed to be drop-in, or opt-in for additional functionality. For example:

 javac -d target some/java/src/File.java
 elide javac -- -d target some/java/src/File.java

👆 These commands are identical, except elide javac is up to 20x faster.

Beyond drop-in tools, Elide is a complete development platform:

 elide build          # Build your project
 elide run app.ts     # Run a script

Elide is a multi-lang runtime

Elide runs JavaScript and TypeScript natively, with Python support under development.

Run TypeScript directly — no transpilation step needed:

// app.ts — TypeScript with embedded SQLite
const { Database } = require("sqlite")
const db = new Database(":memory:")

db.exec("CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT)")
db.exec("INSERT INTO users VALUES (1, 'Elide')")

const user = db.prepare("SELECT * FROM users WHERE id = 1").get()
console.log(`Hello from ${user.name}!`)

> elide app.ts
Hello from Elide!

Serve static assets and develop with live reload:

 elide serve          # Start an HTTP server
 elide dev            # Dev server with live reload

Elide is fast

• JS: Elide runs your TypeScript code faster than Node can run JavaScript.
• Serving: Elide runs your HTTP endpoints at up to 800k RPS. That's really fast.

Elide is compatible

Elide supports the tools and APIs you already know and love.

• Powered by GraalVM's JavaScript engine with broad ECMAScript compliance
• Supports CJS and ESM modules natively
• Embedded database drivers: SQLite, MySQL, and PostgreSQL built-in
• Fast JVM dependency resolution compatible with Maven
• Growing Node.js API compatibility

Elide has great developer tools

• Built-in debugger (Chrome DevTools Protocol, DAP)
• CPU profiler and code coverage out of the box

Elide is secure

Elide provides strong security boundaries and memory safety by default.

• Written in memory-safe Kotlin and Rust
• Strong filesystem and environment isolation
• Extensively tested: thousands of unit and conformance tests across Rust and JavaScript

See also