Bun

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

95716 stars · 5004 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Bun is an all-in-one JavaScript and TypeScript toolkit that ships as a single executable combining a fast runtime, bundler, test runner, and npm-compatible package manager. It is written in Rust, powered by JavaScriptCore, and designed as a drop-in replacement for Node.js with dramatically faster startup and install times.

Use cases

• run typescript and jsx files directly without a build step
• install npm packages faster than npm or yarn
• replace node.js as a javascript runtime
• run javascript tests with a built-in test runner
• bundle javascript and typescript apps
• run package.json scripts
• execute packages with npx-like tooling

When to choose

• you want a fast drop-in Node.js replacement with TypeScript support out of the box
• you need a single tool replacing runtime, bundler, test runner, and package manager
• install speed and startup time matter for your workflow or CI

When to avoid

• you depend on native Node.js addons or APIs Bun does not fully support
• your production stack requires long-term Node.js LTS compatibility
• you rely on ecosystem tooling that assumes Node.js internals

Facets

cli-tool · maturity active

programming-language package-manager build-tool testing http-server cli developer-tools web-development windows cli javascript-runtime typescript jsx transpiler bundler nodejs-alternative javascriptcore all-in-one-toolkit javascript command-line linux macos docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="oven-sh/bun")