### 🚀 Features -83cb516minifier: Improve negation of expressions in boolean context (#25755) (Armano) ### 🐛 Bug Fixes -134fb22isolated-declarations: Preserve unresolved parameter types (#25909) (Dunqing) -526c2b3codegen: Remove deprecated test APIs (#25889) (camc314) -344a9b2codegen: Align enum template sourcemaps (#25872) (camc314) ### ⚡ Performance -5ef0c93minifier: Unwrap all unary exprs without creating dummy expressions (#25891) (Armano) -8783524packages/codegen: Remove loop from `growMappingBuffer` (#25886) (overlookmotel) -b6b14c0packages/codegen: Remove redundant branch (#25885) (overlookmotel) -be6adf0packages/sourcemap: Make `location` passed to `recordSourceMapping` always a number (#25884) (overlookmotel) -f720f15packages/codegen: Take named-mapping only code off hot path in `recordSourceMapping` (#25883) (overlookmotel) -a734af5packages/codegen: Remove redundant setting of `last` in `printImportAttributes` and `printIf` (#25882) (overlookmotel) -c6e44c6packages/codegen: Combine 2 writes in `printJSXElement` (#25881) (overlookmotel) -8801662packages/codegen: Remove redundant mapping from `printParams` (#25880) (overlookmotel) ### 📚 Documentation -5ad330epackages/codegen: Reformat comments (#25876) (overlookmotel)
⚓ 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
Sponsored By
📖 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.