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Bun

by oven-sh

Incredibly fast JavaScript runtime, bundler, test runner, and package manager — all in one.

Stars

95,000

Forks

4,900

Language

Zig

License

MIT

Bun is an all-in-one toolkit for JavaScript and TypeScript — a fast runtime (drop-in Node.js replacement), bundler, test runner, and package manager shipped as a single executable. Written in Zig/C++ and powered by JavaScriptCore, it dramatically reduces startup times and memory usage. TypeScript and JSX work out of the box, and the built-in tools are significantly faster than existing alternatives while remaining usable in existing Node.js projects with little to no changes.

javascripttypescriptruntimebundlernodejspackage-manager