General FAQ

What is the relationship between Rsbuild and Rspack?

Rspack is the base bundler for Rsbuild. The goal of Rsbuild is to provide out-of-the-box building capabilities for Rspack users, allowing developers to start a web project with zero configuration.

The main differences between Rspack and Rsbuild are:

  • Rspack projects need to be configured from scratch, while Rsbuild provides default best practice configurations and supports extending Rspack configurations.
  • Rspack projects require integration with loaders and plugins from the community to support different scenarios, while Rsbuild provides official plugins and default support for common frontend frameworks and build capabilities.
  • The capabilities of Rspack CLI are comparable to webpack CLI, with relatively streamlined functionality, while Rsbuild provides a more powerful CLI and a more complete dev server.

Can Rsbuild be used to build libraries or UI components?

Rsbuild is out-of-the-box for building web applications.

For libraries and UI components, it is recommended to use Rslib, which is a library development tool based on Rsbuild, and can reuse the configuration and plugins of Rsbuild.


What is the relationship between Rsbuild and Modern.js?

Modern.js is a progressive web development framework built on top of Rsbuild. The building capabilities of Modern.js are based on Rsbuild.

The main differences between Modern.js and Rsbuild are:

  • Modern.js is based on React, while Rsbuild is not coupled with any frontend UI framework.
  • Modern.js is a full-stack solution, providing runtime and server-side capabilities, while Rsbuild is a build tool with other capabilities extendable through plugins.
  • Modern.js has more built-in features, while Rsbuild pursues lightweight and flexibility.