oven-sh/bun
# Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one
$ git clone https://github.com/oven-sh/bun.git
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Rust
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What is oven-sh/bun?
Bun is a JavaScript runtime and toolchain that combines a runtime, bundler, package manager, and test runner into a single tool, built on JavaScriptCore for performance. Developers use Bun as an alternative to Node.js when they need faster execution speed and want to consolidate multiple build tools that would typically require separate dependencies. It supports TypeScript and JSX out of the box and is written in Rust.
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7,784 open issues · last updated Jul 21, 2026