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# Rolldown

Rolldown is a JavaScript/TypeScript bundler written in Rust intended to serve as the future bundler used in [Vite](https://vitejs.dev/). It provides Rollup-compatible APIs and plugin interface, but will be more similar to esbuild in scope.

For more information, please check out the documentation at [rolldown.rs](https://rolldown.rs/guide/getting-started).

## VoidZero Inc.

Rolldown is a project of [VoidZero](https://voidzero.dev/), see our announcement [Announcing VoidZero - Next Generation Toolchain for JavaScript](https://voidzero.dev/posts/announcing-voidzero-inc).

If you have requirements for JavaScript tools at scale, please [get in touch](https://forms.gle/WQgjyzYJpwurpxWKA)!

## Contributing

We would love to have more contributors involved!

To get started, please read our [Contributing Guide](https://rolldown.rs/contribution-guide/).

## Credits

The Rolldown project is heavily inspired by:

- [Rollup](https://github.com/rollup/rollup), created by [Rich Harris](https://github.com/Rich-Harris) and maintained by [Lukas Taegert-Atkinson](https://github.com/lukastaegert).
- [esbuild](https://github.com/evanw/esbuild), created by [Evan Wallace](https://github.com/evanw).

And supported by:

- [napi-rs](https://github.com/napi-rs/napi-rs) for Node.js add-ons in Rust via Node-API.
- [oxc](https://github.com/oxc-project/oxc) for the underlying parser, resolver, and sourcemap support.

## Licenses

This project is licensed under the [MIT License](LICENSE).

This project also partially contains code derived or copied from the following projects:

- [rollup(MIT)](https://github.com/rollup/rollup/blob/680912e2ceb42c8d5e571e01c6ece0e4889aecbb/LICENSE-CORE.md)
- [esbuild(MIT)](https://github.com/evanw/esbuild/blob/0c8a0a901d9a6c7bbff9b4dd347c8a3f65f6c6dd/LICENSE.md)

Licenses of these projects are listed in [THIRD-PARTY-LICENSE](/THIRD-PARTY-LICENSE)

[badge-discord]: https://img.shields.io/discord/1079625926024900739?logo=discord&label=Discord
[discord-url]: https://chat.rolldown.rs
[badge-license]: https://img.shields.io/badge/license-MIT-blue.svg
[url-license]: https://github.com/rolldown/rolldown/blob/main/LICENSE
[badge-npm-version]: https://img.shields.io/npm/v/rolldown/latest?color=brightgreen
[url-npm]: https://npmx.dev/package/rolldown/v/latest

[badge-binary-size-windows]: [https://img.shields.io/npm/unpacked-size/%40rolldown%2Fbinding-win32-x64-msvc/latest]
[badge-binary-size-macos]: [https://img.shields.io/npm/unpacked-size/%40rolldown%2Fbinding-darwin-arm64/latest]

## Sponsors

Thanks to [namespace.so](https://namespace.so) for powering our CI/CD pipelines with fast, free macOS and Linux runners.
