The JavaScript Oxidation Compiler (Oxc) is a high-performance, comprehensive collection of JavaScript and TypeScript development tools written in Rust. Designed as a foundational layer for modern web development, it offers a suite of modular utilities including a linter, formatter, parser, transformer, minifier, and resolver. By leveraging the safety and speed of Rust, Oxc aims to solve the performance bottlenecks found in many existing JavaScript-based toolchains, providing exceptionally fast execution suitable for large-scale enterprise repositories and complex CI/CD pipelines.

Oxc provides a unified set of high-speed, interoperable tools that handle the entire lifecycle of JavaScript and TypeScript code, from initial parsing and linting to transformation, module resolution, and final production minification, ensuring consistent performance at every stage.

Some of the key features are:

• Oxlint: An incredibly fast ESLint-compatible linter that features over 800 rules, including type-aware linting powered by the TypeScript compiler.
• Oxfmt: A high-performance, Prettier-compatible code formatter that supports modern JavaScript, TypeScript, and various other web languages with integrated sorting capabilities.
• Parser: A blazing-fast parser supporting JavaScript and TypeScript that passes Test262, Babel, and TypeScript conformance tests.
• Transformer: A robust transpiler that handles syntax lowering for modern runtimes, including TypeScript stripping and React compiler integration.
• Minifier: A production-grade minifier focused on dead code elimination, syntax normalization, and efficient variable mangling.
• Resolver: A highly optimized Node.js-compatible module resolution algorithm that significantly outperforms existing solutions like enhanced-resolve.

Oxc is designed to be integrated into existing development workflows as a drop-in replacement or high-speed alternative to established tools. It is typically installed as a development dependency via package managers like pnpm or npm. For linting and formatting, users define configurations that align with industry-standard conventions (such as ESLint or Prettier settings), allowing for incremental adoption. In more advanced scenarios, Oxc can be used as a library through its Rust crates or through its Node.js bindings to build custom tooling or integrate into build systems like Webpack or Vite.

Some common use cases include:

• Replacing Legacy Tooling: Migrating large repositories from slower linting and formatting stacks to Oxc to reduce CI build times by up to 100x.
• TypeScript Tooling: Using the native parser and transformer to handle TypeScript and JSX compilation without relying on heavier traditional compilers.
• CI/CD Optimization: Implementing high-speed linting and formatting checks in CI pipelines to provide near-instant feedback to developers.
• Custom Tool Development: Leveraging the Oxc Rust crates or Node.js bindings to build specialized code analysis or transformation tools for complex internal codebases.