mirror of
https://github.com/oven-sh/bun
synced 2026-02-02 15:08:46 +00:00
230 lines
4.4 KiB
Plaintext
230 lines
4.4 KiB
Plaintext
Bun itself is MIT-licensed.
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## JavaScriptCore
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Bun statically links JavaScriptCore (and WebKit) which is LGPL-2 licensed. WebCore files from WebKit are also licensed under LGPL2. Per LGPL2:
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> (1) If you statically link against an LGPL’d library, you must also provide your application in an object (not necessarily source) format, so that a user has the opportunity to modify the library and relink the application.
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You can find the patched version of WebKit used by Bun here: <https://github.com/oven-sh/webkit>. If you would like to relink Bun with changes:
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- `git submodule update --init --recursive`
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- `make jsc`
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- `zig build`
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This compiles JavaScriptCore, compiles Bun’s `.cpp` bindings for JavaScriptCore (which are the object files using JavaScriptCore) and outputs a new `bun` binary with your changes.
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## Linked libraries
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Bun statically links these libraries:
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{% table %}
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- Library
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- License
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---
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- [`boringssl`](https://boringssl.googlesource.com/boringssl/)
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- [several licenses](https://boringssl.googlesource.com/boringssl/+/refs/heads/master/LICENSE)
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---
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---
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- [`brotli`](https://github.com/google/brotli)
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- MIT
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---
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- [`libarchive`](https://github.com/libarchive/libarchive)
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- [several licenses](https://github.com/libarchive/libarchive/blob/master/COPYING)
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---
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- [`lol-html`](https://github.com/cloudflare/lol-html/tree/master/c-api)
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- BSD 3-Clause
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---
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- [`mimalloc`](https://github.com/microsoft/mimalloc)
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- MIT
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---
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- [`picohttp`](https://github.com/h2o/picohttpparser)
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- dual-licensed under the Perl License or the MIT License
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---
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- [`zstd`](https://github.com/facebook/zstd)
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- dual-licensed under the BSD License or GPLv2 license
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---
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- [`simdutf`](https://github.com/simdutf/simdutf)
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- Apache 2.0
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---
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- [`tinycc`](https://github.com/tinycc/tinycc)
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- LGPL v2.1
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---
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- [`uSockets`](https://github.com/uNetworking/uSockets)
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- Apache 2.0
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---
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- [`zlib-cloudflare`](https://github.com/cloudflare/zlib)
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- zlib
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---
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- [`c-ares`](https://github.com/c-ares/c-ares)
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- MIT licensed
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---
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- [`libicu`](https://github.com/unicode-org/icu) 72
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- [license here](https://github.com/unicode-org/icu/blob/main/icu4c/LICENSE)
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---
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- [`libbase64`](https://github.com/aklomp/base64/blob/master/LICENSE)
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- BSD 2-Clause
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---
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- A fork of [`uWebsockets`](https://github.com/jarred-sumner/uwebsockets)
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- Apache 2.0 licensed
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---
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- Parts of [Tigerbeetle's IO code](https://github.com/tigerbeetle/tigerbeetle/blob/532c8b70b9142c17e07737ab6d3da68d7500cbca/src/io/windows.zig#L1)
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- Apache 2.0 licensed
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{% /table %}
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## Polyfills
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For compatibility reasons, the following packages are embedded into Bun's binary and injected if imported.
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{% table %}
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- Package
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- License
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---
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- [`assert`](https://npmjs.com/package/assert)
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- MIT
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---
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- [`browserify-zlib`](https://npmjs.com/package/browserify-zlib)
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- MIT
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---
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- [`buffer`](https://npmjs.com/package/buffer)
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- MIT
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---
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- [`constants-browserify`](https://npmjs.com/package/constants-browserify)
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- MIT
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---
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- [`crypto-browserify`](https://npmjs.com/package/crypto-browserify)
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- MIT
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---
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- [`domain-browser`](https://npmjs.com/package/domain-browser)
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- MIT
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---
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- [`events`](https://npmjs.com/package/events)
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- MIT
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---
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- [`https-browserify`](https://npmjs.com/package/https-browserify)
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- MIT
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---
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- [`os-browserify`](https://npmjs.com/package/os-browserify)
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- MIT
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---
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- [`path-browserify`](https://npmjs.com/package/path-browserify)
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- MIT
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---
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- [`process`](https://npmjs.com/package/process)
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- MIT
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---
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- [`punycode`](https://npmjs.com/package/punycode)
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- MIT
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---
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- [`querystring-es3`](https://npmjs.com/package/querystring-es3)
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- MIT
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---
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- [`stream-browserify`](https://npmjs.com/package/stream-browserify)
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- MIT
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---
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- [`stream-http`](https://npmjs.com/package/stream-http)
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- MIT
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---
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- [`string_decoder`](https://npmjs.com/package/string_decoder)
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- MIT
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---
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- [`timers-browserify`](https://npmjs.com/package/timers-browserify)
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- MIT
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---
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- [`tty-browserify`](https://npmjs.com/package/tty-browserify)
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- MIT
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---
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- [`url`](https://npmjs.com/package/url)
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- MIT
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---
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- [`util`](https://npmjs.com/package/util)
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- MIT
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---
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- [`vm-browserify`](https://npmjs.com/package/vm-browserify)
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- MIT
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{% /table %}
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## Additional credits
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- Bun's JS transpiler, CSS lexer, and Node.js module resolver source code is a Zig port of [@evanw](https://github.com/evanw)’s [esbuild](https://github.com/evanw/esbuild) project.
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- Credit to [@kipply](https://github.com/kipply) for the name "Bun"!
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