Turbopack
Turbopack is an incremental JavaScript and TypeScript bundler written in Rust and included in Next.js.
What Turbopack is
Turbopack is an incremental JavaScript and TypeScript bundler written in Rust and included in Next.js. It supports local development with both the Pages Router and App Router, and is the default Next.js bundler for basic use without configuration. It spreads work across CPU cores, caches results at the function level, and saves results to disk between runs. Lazy bundling builds only what the development server requests, which can reduce initial compile time and memory use. Supported languages and formats include JavaScript, TypeScript, ECMAScript, CommonJS, and ESM; Next.js 16 also detects Babel configuration. Framework support includes JSX, Fast Refresh, and React Server Components for the App Router. CSS options include global CSS, CSS Modules, nesting, PostCSS, and Sass/SCSS, though custom Sass functions are unsupported. Static image and font imports, JSON, TypeScript path aliases, manual aliases, and custom extensions are supported. Native bindings are available for macOS, Windows, and Linux on x64 and ARM64. Turbopack is included in Next.js at no separate stated price.
Good
- Default Next.js bundler for basic use without configuration.
- Caches results at function level and between runs.
- Supports JavaScript and TypeScript.
- Native bindings support macOS, Windows, and Linux.
Watch out
- Does not support webpack plugins.
- Custom Sass functions are unsupported.
- Does not perform TypeScript type checking.
- Yarn Plug'n'Play support is not planned.
Who it suits
Turbopack suits developers using Next.js who want a bundler for local development across the Pages Router or App Router. It is also relevant when incremental builds and lazy bundling fit the development workflow.
Verdict
Turbopack covers a broad set of Next.js development needs and is included without a separate stated price. Consider its unsupported integrations and run type checking separately.
Plans and prices
From Turbopack's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Turbopack | Free | Included in Next.js; no separate price stated |
The facts
Each one read from Turbopack's own pages, with the date it was checked.
What it does
- Asset and resolution support
- It supports static image and font imports, JSON imports, TypeScript path aliases, manual aliases, and custom extensions.checked 7 Oct 2026
- CSS and styling
- It supports global CSS, CSS Modules, CSS nesting, PostCSS, and Sass/SCSS in Next.js; custom Sass functions are unsupported.checked 7 Oct 2026
- Default bundler
- Turbopack is the default bundler in Next.js, with no configuration required for basic use.checked 7 Oct 2026
- Framework features
- It supports JSX, Fast Refresh, and React Server Components for the Next.js App Router.checked 7 Oct 2026
- Incremental builds
- It parallelizes work across CPU cores, caches results at the function level, and persists results to disk between runs.checked 7 Oct 2026
- Integration limit
- Turbopack does not support webpack plugins, although it supports webpack loaders.checked 7 Oct 2026
- Language support
- It supports JavaScript, TypeScript, ECMAScript, CommonJS, ESM, and Babel configuration detection in Next.js 16.checked 7 Oct 2026
- Lazy bundling
- It bundles only what the development server requests, which can reduce initial compile time and memory use.checked 7 Oct 2026
- Other limitations
- Yarn Plug'n'Play and experimental URL imports are not planned for Turbopack support in Next.js.checked 7 Oct 2026
- Purpose
- Turbopack is an incremental JavaScript and TypeScript bundler written in Rust and built into Next.js.checked 7 Oct 2026
- Support channel
- The documentation says users can attach a generated Turbopack trace file when filing a GitHub issue to help the Next.js team investigate performance or memory issues.checked 7 Oct 2026
- Supported systems
- Native bindings are available for macOS, Windows, and Linux on x64 and ARM64; Linux supports glibc and musl.checked 7 Oct 2026
- Type checking
- Turbopack does not perform TypeScript type checking; the documentation recommends running tsc --watch or using an IDE for checks.checked 7 Oct 2026
- Use
- It supports both the Pages Router and App Router for local development.checked 7 Oct 2026
