Oxc vs Turbopack

Oxc is a free collection of JavaScript tools written in Rust, available for Linux, macOS and Windows. Its toolchain includes a linter, formatter, parser, transformer, resolver, minifier and TypeScript runner. Oxlint checks JavaScript and TypeScript, including JSX, TSX and script blocks in Vue, Svelte and Astro files. It includes more than 870 rules across areas such as TypeScript, React, Jest, Vitest, imports, Unicorn and accessibility. Type-aware linting uses tsgo, a native Go port of the TypeScript compiler. Oxfmt follows a Prettier-compatible workflow and can sort imports, Tailwind CSS classes and package.json fields; it formats JavaScript, TypeScript, JSON, YAML, TOML, HTML, Vue, Svelte, CSS, Markdown, GraphQL and other formats. The transformer handles TypeScript and JSX, syntax lowering from ES2026 to ES2015, React Refresh, plugins and isolated declaration output. An experimental runner executes TypeScript and JSX without a separate build step, with ESM, CommonJS, source map and tsconfig.json support. It strips types but does not type-check programs, and its APIs and behavior may change between releases.

Turbopack is an incremental JavaScript and TypeScript bundler written in Rust and built into Next.js. It supports the Pages Router and App Router for local development and is the default bundler in Next.js for basic use without configuration. It parallelizes work across CPU cores, caches results at the function level and persists them between runs. Lazy bundling processes only what the development server requests, which can reduce initial compile time and memory use. Its support includes JavaScript, TypeScript, ECMAScript, CommonJS, ESM and Babel configuration detection in Next.js 16, along with JSX, Fast Refresh and React Server Components for the App Router. CSS support includes global CSS, CSS Modules, nesting, PostCSS and Sass/SCSS, but not custom Sass functions. It also handles static image and font imports, JSON, aliases and custom extensions. Native bindings are available for Linux, macOS and Windows. Turbopack is included in Next.js with no separate price stated. It does not perform TypeScript type checking, and it does not support webpack plugins.