SOFTWARE LICENSE GUIDE

Bun

Bun is a free and open-source JavaScript runtime. It is designed for speed and efficiency, offering a fast alternative to existing JavaScript runtimes.

Open SourceMIT License

What it does

It executes JavaScript and TypeScript code, provides a package manager, and a bundler, aiming to be an all-in-one toolkit for JavaScript development.

Who it may suit

JavaScript and TypeScript developers seeking a high-performance runtime, bundler, and package manager for their projects.

Free tier and license

Bun is entirely free and open-source.

Limitations to check

No inherent functional limitations for the core software. Users should check official documentation for specific platform compatibility or system requirements.

Licensing notes

Primarily licensed under the MIT License, a permissive free software license.

Verification details

Last licensing verification recorded: 2026-10-28.

Directory record last updated: 2026-09-26. These are separate dates: a record update does not necessarily mean the publisher's terms changed.

AI-assisted summaries may be incomplete or outdated. Confirm licensing, pricing, and commercial-use rights in the official sources before making a business decision.

Frequently asked questions

Is Bun free to use?

Yes, Bun is free and open-source software.

What is Bun's primary function?

Bun is a JavaScript runtime that also includes a package manager and bundler.

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