127 releases (79 breaking)

Uses new Rust 2021

new 0.80.3 Sep 28, 2022
0.79.0 Sep 23, 2022
0.75.0 Jul 27, 2022
0.59.0 Mar 24, 2022
0.12.0 Jul 31, 2020

#16 in Web programming

Download history 8348/week @ 2022-06-10 8884/week @ 2022-06-17 9011/week @ 2022-06-24 8690/week @ 2022-07-01 8792/week @ 2022-07-08 8469/week @ 2022-07-15 9216/week @ 2022-07-22 9033/week @ 2022-07-29 8812/week @ 2022-08-05 25622/week @ 2022-08-12 10692/week @ 2022-08-19 10687/week @ 2022-08-26 11808/week @ 2022-09-02 12321/week @ 2022-09-09 10370/week @ 2022-09-16 9348/week @ 2022-09-23

45,781 downloads per month
Used in 95 crates (37 directly)

Apache-2.0

600KB
16K SLoC

babel

Make the web (development) faster.

npm Downloads undefined GitHub release (latest SemVer)

GitHub code size in bytes CI Status node-current (scoped)

Discord

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.

Documentation

Check out the documentation in the website.

Features

Please see comparison with babel.

Performance

Please see benchmark results on the website.

Supporting swc

Backers on Open Collective Gold sponsors on Open Collective Silver sponsors on Open Collective Bronze sponsors on Open Collective

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:

Contributing

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

License

SWC is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE and LICENSE-MIT for details.

Dependencies

~4–9.5MB
~198K SLoC