> For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt.

# General FAQ

### What is the relationship between Rsbuild and Rspack?

Rspack is the underlying bundler for Rsbuild. The goal of Rsbuild is to provide out-of-the-box build capabilities for Rspack users, so developers can 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 the Rspack CLI are comparable to the webpack CLI but more streamlined, while Rsbuild provides a more powerful CLI and a more complete dev server.

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### Can Rsbuild be used to build libraries or UI components?

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

For libraries and UI components, we recommend using [Rslib](https://github.com/web-infra-dev/rslib), a library development tool based on Rsbuild that reuses Rsbuild's configuration and plugins.