swc-project

swc-project/swc

Rust-based platform for the Web

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README.md

Make the web (development) faster.

SWC (stands for `Speedy Web Compiler`) is a super-fast TypeScript / JavaScript compiler written in Rust. It's a library for Rust and JavaScript at the same time. If you are using SWC from Rust, see [rustdoc](https://rustdoc.swc.rs/swc/) and for most users, your entry point for using the library will be [parser](https://rustdoc.swc.rs/swc_ecma_parser/).

Also, SWC tries to ensure that

> If you select the latest version of each crates, it will work

for rust users.

MSRV of crates is currently `1.73`.

To update all SWC crates you use, you can run `curl https://raw.githubusercontent.com/swc-project/swc/main/scripts/update-all-swc-crates.sh | bash -s`. This script will update all dependencies to the latest version and run `cargo build` to ensure that everything works.
Note that you need

-   `jq`
-   `cargo upgrade`

command to run the script.

Supported Node Versions:

-   Node v10+ for usage
-   Node v20+ for development

---

If you are using SWC from JavaScript, please refer to [docs on the website](https://swc.rs/docs/installation/).

# Documentation

Check out the documentation [in the website](https://swc.rs/docs/installation/).

Native npm packages use self-loading compressed addons on x64 and arm64 macOS,
Windows MSVC, and Linux GNU/musl. The first load materializes the verified
original addon; package names and JavaScript APIs stay the same. See
[native addon carriers](https://github.com/swc-project/swc/blob/main/docs/native-addon-carriers.md)
for the supported-target boundary and `SWC_NATIVE_BINDING_CACHE`.

# Features

Please see [comparison with babel](https://swc.rs/docs/migrating-from-babel).

# Performance

Please see [benchmark results](https://swc.rs/docs/benchmark-transform) on the website.

# Supporting development

<h2 align="center">Supporting swc</h2>

## Star History

[![Star History Chart](https://api.star-history.com/svg?repos=swc-project/swc&type=Timeline)](https://www.star-history.com/#swc-project/swc&Timeline)

## Powered by

[![JetBrains logo.](https://resources.jetbrains.com/storage/products/company/brand/logos/jetbrains.svg)](https://jb.gg/OpenSourceSupport)

## Sponsors

SWC is a community-driven project, and is maintained by a group of [volunteers](https://swc.rs/docs/team). If you'd like to help support the future of the project, please consider:

-   Giving developer time on the project. (Message us on [Discord](https://discord.gg/GnHbXTdZz6) (preferred) or [Github discussions](https://github.com/swc-project/swc/discussions) for guidance!)
-   Giving funds by becoming a sponsor (see https://opencollective.com/swc)!

## Contributing

See [CONTRIBUTING.md](CONTRIBUTING.md). You may also find the architecture
documentation useful ([ARCHITECTURE.md](ARCHITECTURE.md)).

## License

SWC is primarily distributed under the terms of the Apache License (Version 2.0).

See [LICENSE](LICENSE) for details.

Repository info

Default branch: main
Latest version: v1.16.18
Created: 2017-12-22
Last activity: 2026-10-12
License: Apache-2.0
Open issues: 399
Watchers: 180

Topics

babel compiler ecmascript ecmascript-parser javascript parser rust swc typescript typescript-compiler typescript-parser

Contributors

kdy1

4.8k contributions

swc-bot

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kwonoj

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