Oxc

High-performance JavaScript toolchain with parser, linter, formatter, and minifier.

Overview

Oxc is a collection of high-performance JavaScript tools written in Rust, designed as the foundation for modern JavaScript tooling. It includes Oxlint (a 50-100x faster ESLint alternative with 845+ rules and type-aware linting), Oxfmt (a 30x faster Prettier-compatible formatter), and additional tools for parsing, transforming, minifying, and resolving JavaScript and TypeScript code.

The project prioritizes performance, correctness, and developer experience. Oxlint is built for large repositories and CI environments with native type-aware linting powered by TypeScript's compiler. Oxfmt includes batteries-like features such as import sorting and Tailwind CSS class sorting without requiring plugins.

Oxc is free and open source, maintained by VoidZero Inc. and community contributors, with support for JavaScript, TypeScript, JSX, TSX, and framework files across Vue, Svelte, and Astro.

Key features

Oxlint: ESLint-compatible linter with 845+ rules
Oxfmt: Prettier-compatible formatter with built-in sorting
Type-aware linting powered by TypeScript compiler
Multi-file analysis for cross-file imports
Parser, transformer, minifier, and resolver tools
Support for JavaScript, TypeScript, JSX, TSX, Vue, Svelte, Astro
Automatic fixes and ignore file support
ESLint plugin compatibility

Pros

50-100x faster than ESLint
30x faster than Prettier, 3x faster than Biome
True type-aware linting with full TypeScript compatibility
Extensive rule coverage with 845+ built-in rules
Batteries-included features like import and Tailwind sorting
Designed for large repositories and CI environments
Free and open source with active development

Cons

Oxfmt is in beta status
Oxminifier is in alpha status
Requires migration effort from existing ESLint/Prettier setups
Some edge-case plugin behaviors may not be fully supported

Use this if

You need a fast, modern linter and formatter for JavaScript/TypeScript projects; you're migrating from ESLint or Prettier; you work with large codebases or monorepos; you require type-aware linting; you want to improve CI performance.

Skip this if

You depend on specific ESLint or Prettier plugin behaviors not yet supported by Oxc; you need a single unified toolchain (consider Vite+ instead); you require proprietary support or SLAs.

Best for

Large codebases and monoreposCI/CD pipelines requiring fast linting and formattingTeams migrating from ESLint and PrettierType-aware linting with TypeScript projectsHigh-throughput development workflows

Alternatives

ESLintPrettierBiomeVite+

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