Rsbuild vs Rspack

Rsbuild is a web-based build tool for web applications, powered by Rspack. It can create projects with no required configuration or through a configurable build API. Rspack handles bundling by default, while SWC transforms and minifies JavaScript and TypeScript. Framework plugins cover React, Vue, Svelte, Solid, and Preact. Development mode enables hot module replacement by default, and production builds enable JavaScript and CSS minification. Optional styling integrations include Tailwind CSS, UnoCSS, Sass, Less, and Stylus. Rsbuild works with most webpack plugins and all Rspack plugins, and provides first-class Module Federation support for micro-frontend applications. It also lists code splitting, tree shaking, source maps, TypeScript support, and a plugin API. The software is free and open source under the MIT license, runs on the web, and provides a StackBlitz example and Discord community. Rsbuild v2 requires Node.js 20.19+ or 22.12+; v1 requires Node.js 18.12.0 or higher.

Rspack is a free, open-source bundler for web projects, built with Rust and TypeScript. Its parallelized architecture supports parallel builds, while incremental compilation is used to improve hot module replacement. Rspack updates the webpack API with the aim of supporting webpack replacement, but it does not promise full API compatibility; it prioritizes commonly used APIs and adds others based on user needs. It works with almost all community loaders, and over 85% of the 50 most downloaded webpack plugins can be used with it or have an alternative. Built-in capabilities include code splitting, tree shaking, asset management, a development server, SWC, Lightning CSS, and a JavaScript build API. Documented integrations cover React, React Server Components, Preact, Vue, Next.js, Node.js applications, NestJS, Solid, Svelte, and Rstest. Custom plugins and loaders can be written in JavaScript or Rust. Rspack 1.0 was released in August 2024 and is described as production-ready. It is available for Linux, macOS, and Windows, as well as web and self-hosted environments. The software is released under the MIT license; questions can be directed to Discord or GitHub Discussions.