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 and for most users, your entry point for using the library will be 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 named swc_ecma_* is the current stable, and nightly for others.

If you are using SWC from JavaScript, please refer to docs on the website.

Check out the documentation in the website.

Please see comparison with babel.

Please see benchmark results on the website.

SWC is a community-driven project, and is maintained by a group of volunteers. If you'd like to help support the future of the project, please consider:

• Giving developer time on the project. (Message us on Discord (preferred) or Github discussions for guidance!)
• Giving funds by becoming a sponsor (see https://opencollective.com/swc)!

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

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

See LICENSE for details.