@swc/core
Advanced tools
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 is currently nightly, but we will support stable rustc again in the future.
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:
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.
Babel is a widely used JavaScript compiler that also allows for transforming modern JavaScript into backward compatible versions. Compared to @swc/core, Babel is more established with a larger ecosystem of plugins, but @swc/core is known for its superior performance due to being written in Rust.
The TypeScript compiler not only provides type checking but also has the capability to transpile TypeScript code to JavaScript, similar to the transpilation feature of @swc/core. However, TypeScript does not focus on minification or other optimizations that @swc/core offers.
Esbuild is a fast JavaScript bundler and minifier. It shares similar goals with @swc/core in terms of performance and efficiency. While both are focused on speed, esbuild emphasizes on bundling and has a different set of features compared to the more transpilation-focused @swc/core.
FAQs
Super-fast alternative for babel
The npm package @swc/core receives a total of 12,888,193 weekly downloads. As such, @swc/core popularity was classified as popular.
We found that @swc/core demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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