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DR: Domain Rating by Ahrefs. Checked 4 Oct, changed 3 Oct.
Mission brief
Runtime, package manager, test runner and bundler in a single binary for JavaScript and TypeScript.
Questions from the ground
What is Bun?
Bun is a fast all-in-one JavaScript runtime and toolkit that includes a runtime, package manager, test runner, and bundler in a single binary. It runs JavaScript and TypeScript on JavaScriptCore with Node.js API compatibility, enabling existing Node.js projects to work with minimal changes.
How fast is Bun's package manager?
Bun's package manager is npm-compatible and up to 30 times faster than npm, yarn, and pnpm. It achieves the fastest install times across various scenarios including first install, warm cache, CI environments, and no-op reinstalls.
What built-in APIs does Bun include?
Bun includes built-in APIs for HTTP server creation with routing, WebSocket support with pub/sub, PostgreSQL client via Bun.sql, Redis client, S3 storage client, shell scripting with Bun.$, password hashing with argon2 and bcrypt, and testing utilities. These eliminate the need to install and maintain separate packages for common server needs.
Can I use Bun with my existing Node.js project?
Yes. Bun is designed to work with existing Node.js projects. You can use bun install or bun test in existing Node.js projects without requiring a full runtime switch, and your frameworks and Node.js APIs work as-is.
What frameworks does Bun support?
Bun runs Next.js, Remix, Nuxt, Astro, SvelteKit, Hono, Elysia and other frameworks. Since Bun provides Node.js compatibility, your framework already works without requiring changes.
Key features
- JavaScript and TypeScript runtime on JavaScriptCore
- Fast npm-compatible package manager
- Jest-compatible test runner
- Built-in bundler for TypeScript, JSX, CSS and HTML
- HTTP server with routing and WebSocket support
- PostgreSQL and Redis clients built-in
- S3-compatible object storage client
- Shell scripting with Bun.$
- Password hashing with argon2 and bcrypt
- Single-file executable compilation
Bun has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Screenshots and demo video (locked)
- Dofollow website link (locked)
- Comparisons (locked)
Link metrics
Majestic link data for bun.sh; the arrow is the change since the previous check.
- Trust Flow
- 36
- no change since last check
- Citation Flow
- 53
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- Referring domains
- 7,711
- no change since last check
- External backlinks
- 120,427
- no change since last check
Top topic: Computers/Programming/Languages (35). Checked 3 Oct 2026, changed 3 Oct 2026. Link data by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Compare and explore
See the alternatives to Bun, more in Open Source.