Bun
The facts below are what the maker publishes about Bun, checked and dated. Our editors have not written about it yet.
Plans and prices
From Bun's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Bun | Free | Open-source JavaScript runtime and toolkit · MIT-licensed |
The facts
Each one read from Bun's own pages, with the date it was checked.
What it does
- Built-in integrations
- Bun includes APIs for PostgreSQL, MySQL, SQLite, Redis, S3-compatible storage, HTTP, and WebSockets.checked 7 Oct 2026
- Bundling
- Bun’s bundler handles TypeScript, JSX, CSS, and HTML for browsers and servers, and supports a dev server with hot module reloading and single-file executables.checked 7 Oct 2026
- Dependency resolution
- Yeschecked 21 Sep 2026
- Framework compatibility
- The site names Next.js, Remix, Nuxt, Astro, SvelteKit, Hono, and Elysia as frameworks that run on Bun.checked 7 Oct 2026
- Install options
- The install page offers installation through an official script, npm, Homebrew, Windows package managers, and Docker.checked 7 Oct 2026
- Lockfile support
- Yeschecked 21 Sep 2026
- Offline installation
- Yeschecked 21 Sep 2026
- Open source
- Bun says it remains open-source and MIT-licensed and continues to be developed in public on GitHub.checked 7 Oct 2026
- Package formats
- npm packages,Git repositories,GitHub repositories,tarballs,file dependencies,npm aliaseschecked 21 Sep 2026
- Package manager
- Bun’s npm-compatible package manager supports workspaces, catalogs, overrides, patches, and a readable lockfile.checked 7 Oct 2026
- Private registry auth
- Yeschecked 21 Sep 2026
- Runtime
- Bun runs JavaScript and TypeScript on JavaScriptCore and supports Node.js APIs and node_modules.checked 7 Oct 2026
- Security features
- Bun lists password hashing with Argon2 and bcrypt, CSRF tokens, and OS keychain secrets storage among its built-in APIs.checked 7 Oct 2026
- Support
- Bun directs users to its Discord for support and discussion.checked 7 Oct 2026
- Testing
- Bun’s test runner offers Jest-compatible expectations, mocks, snapshots, DOM testing, and coverage.checked 7 Oct 2026
- What it does
- Bun combines a JavaScript runtime, package manager, test runner, and bundler in a single binary.checked 7 Oct 2026
- Workspace support
- Yeschecked 21 Sep 2026
The company
- Company
- Bun says it has joined Anthropic, which is investing in Bun as infrastructure for Claude Code, Claude Agent SDK, and future AI coding products.checked 7 Oct 2026
Where it runs
- Platform limits
- Bun requires macOS 13.0 or later, Windows 10 version 1809 or later, and x64 CPUs with SSE4.2 support.checked 7 Oct 2026
- Supported platforms
- macOS,Linux,Windowschecked 21 Sep 2026
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