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    Rust-based platform for the Web

    backend
    babel
    compiler
    ecmascript
    ecmascript-parser
    javascript
    Rust
    Apache-2.0
    34.1K stars
    1.5K forks
    34.1K GitHub watchers
    Updated 7/27/2026
    View on GitHub

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    Use Cases & Benefits

    • SWC is a Rust-based super-fast compiler for JavaScript and TypeScript, designed to speed up web development workflows.
    • Key technologies include Rust, ECMAScript parsing, and TypeScript compilation, with compatibility for Node.js v10+ and v20+ for development.
    • Strengths include high performance and active community support; limitations may include Rust ecosystem dependency and learning curve.
    • Organizations can integrate SWC to accelerate build processes and replace Babel for faster JavaScript/TypeScript compilation in production.
    • Ideal use cases are web projects requiring fast transpilation, large-scale JavaScript/TypeScript codebases, and performance-critical build pipelines.

    About swc

    swc

    Make the web (development) faster.

    downloads (@swc/core) downloads (3rd party)

    undefined GitHub release (latest SemVer)

    GitHub code size in bytes 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 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.

    Documentation

    Check out the documentation in the website.

    Features

    Please see comparison with babel.

    Performance

    Please see benchmark results on the website.

    Supporting development

    Supporting swc

    Star History

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    Sponsors

    Sponsors

    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 the Apache License (Version 2.0).

    See LICENSE for details.

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