20 breaking releases
Uses new Rust 2024
| new 0.130.0 | May 11, 2026 |
|---|---|
| 0.128.0 | Apr 27, 2026 |
| 0.123.0 | Mar 30, 2026 |
#2270 in Programming languages
105,487 downloads per month
Used in 154 crates
(17 directly)
640KB
8K
SLoC
String types for oxc.
This crate provides [Str], Ident, and CompactStr types for efficient string handling.
⚓ Oxc
/oʊ ɛks siː/
The Oxidation Compiler is a collection of high-performance tools for JavaScript and TypeScript written in Rust.
Oxc is part of VoidZero's vision for a unified, high-performance toolchain for JavaScript. It powers Rolldown (Vite's bundler) and enables the next generation of ultra-fast development tools that work seamlessly together.
For more information, check out our website at oxc.rs.
* Oxidation is the chemical process that creates rust
🙋 Who's using Oxc?
Rolldown and Nuxt use Oxc for parsing. Rolldown also uses Oxc for transformation and minification. Nova, swc-node, and knip use oxc_resolver for module resolution. Preact, Shopify, ByteDance, and Shopee use oxlint for linting.
🔧 Lint or Format a Codebase
🧰 Build Tooling on Top of Oxc
- Parse JavaScript and TypeScript: Parser
- Transform TypeScript, JSX, and modern JavaScript: Transformer
- Minify JavaScript for production builds: Minifier
- Resolve modules for JavaScript and TypeScript: Resolver
✍️ Contribute
Check out some of the good first issues or ask us on Discord.
See CONTRIBUTING.md for guidance, or read the complete contributing guide on our website →
If you are unable to contribute by code, you can still participate by:
- Add a GitHub Star to the project
- Join us on Discord
- Follow me on X and post about this project
📚 Other Resources
❤ Who's Sponsoring Oxc?
📖 License
Oxc is free and open-source software licensed under the MIT License.
Thank you to namespace.so for powering our CI/CD pipelines with fast, free macOS and Linux runners.
Oxc ports or copies code from other open source projects, their licenses are listed in Third-party library licenses.
Dependencies
~1.4–1.9MB
~29K SLoC