oxc-guard 0389c4010e release(crates): oxc v0.146.0 (#25912)
### 🚀 Features

- 83cb516 minifier: Improve negation of expressions in boolean context (#25755) (Armano)

### 🐛 Bug Fixes

- 134fb22 isolated-declarations: Preserve unresolved parameter types (#25909) (Dunqing)
- 526c2b3 codegen: Remove deprecated test APIs (#25889) (camc314)
- 344a9b2 codegen: Align enum template sourcemaps (#25872) (camc314)

### ⚡ Performance

- 5ef0c93 minifier: Unwrap all unary exprs without creating dummy expressions (#25891) (Armano)
- 8783524 packages/codegen: Remove loop from `growMappingBuffer` (#25886) (overlookmotel)
- b6b14c0 packages/codegen: Remove redundant branch (#25885) (overlookmotel)
- be6adf0 packages/sourcemap: Make `location` passed to `recordSourceMapping` always a number (#25884) (overlookmotel)
- f720f15 packages/codegen: Take named-mapping only code off hot path in `recordSourceMapping` (#25883) (overlookmotel)
- a734af5 packages/codegen: Remove redundant setting of `last` in `printImportAttributes` and `printIf` (#25882) (overlookmotel)
- c6e44c6 packages/codegen: Combine 2 writes in `printJSXElement` (#25881) (overlookmotel)
- 8801662 packages/codegen: Remove redundant mapping from `printParams` (#25880) (overlookmotel)

### 📚 Documentation

- 5ad330e packages/codegen: Reformat comments (#25876) (overlookmotel)
2026-08-19 08:29:51 +00:00
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⚓ 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.

See more projects using Oxc →

🔧 Lint or Format a Codebase

  • Lint: Oxlint — npx oxlint@latest
  • Format: Oxfmt — npx oxfmt@latest

🧰 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:

📚 Other Resources

Sponsored By

Our sponsors

📖 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.

S
Description
migrate-oxlint: Guide for migrating a project from ESLint to Oxlint. Use when asked to migrate, convert, or switch a JavaScript/TypeScript project's linter from ESLint to…; migrate-oxfmt: Guide for migrating a project from Prettier or Biome to Oxfmt. Use when asked to migrate, convert, or switch a JavaScript/TypeScript project's formatter from…
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Rust 83.4%
JavaScript 9.4%
TypeScript 7.1%