Is Bun free and open source?

Yes. Bun is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/oven-sh/bun.

What are open-source alternatives to Bun?

Other open-source web & apis tools on OSSDrop include React, Flutter, Next.js, Supabase.

Curated

Fast all-in-one JavaScript runtime, bundler, test runner, and package manager, built as a drop-in for Node.

Web & APIs·MIT·95.1k stars·bun-v1.3.14·added 2026-07-25

Curated listing — added by OSSDrop, not the maker.

What is Bun?
Bun is an open-source web & apis tool — Fast all-in-one JavaScript runtime, bundler, test runner, and package manager, built as a drop-in for Node.
Is Bun free and open source?
Yes. Bun is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/oven-sh/bun.
What are open-source alternatives to Bun?
Other open-source web & apis tools on OSSDrop include React, Flutter, Next.js, Supabase.

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