Reuse your build setup
Use existing Rsbuild or Rspack config so aliases, transforms, and plugins stay consistent in tests.

Rspack-based Testing Framework
Provide first-class support for Rspack ecosystem
Use existing Rsbuild or Rspack config so aliases, transforms, and plugins stay consistent in tests.
Run tests through Rspack's bundling model to match production behavior more closely.
Rspack-powered bundling keeps startup and reruns fast, even in larger projects.
TypeScript, ESM, CJS, CSS Modules, and modern JavaScript work out of the box.
Assertions, snapshots, mocks, coverage, and lifecycle hooks are ready when you start.
Run tests in Chromium, Firefox, or WebKit through Playwright when jsdom isn't enough.
The fast, unified JavaScript toolchain for developers and agents
A fast Rust-based bundler for the web, with a modernized webpack API
A fast, extensible build tool for modern web development, powered by Rspack
An Rsbuild-based library development tool for creating libraries and UI components

An Rsbuild-based static site generator for creating documentation sites

An AI-friendly build analyzer that makes the build process transparent
A JavaScript testing framework powered by Rspack, with a Jest-compatible API
A high-performance, ESLint-compatible linter for JavaScript and TypeScript