Rsbuild

Free plan Web

What Rsbuild is

Rsbuild is a free, open-source build tool for web applications, powered by Rspack. It offers project setup with zero configuration as well as a configurable build API. Rspack is the default bundler, and SWC transforms and minifies JavaScript and TypeScript. Framework plugins support React, Vue, Svelte, Solid, and Preact. Hot module replacement is enabled by default during development; production builds enable JavaScript and CSS minification by default. Optional styling support includes Tailwind CSS, UnoCSS, and preprocessing for Sass, Less, and Stylus. Rsbuild works with most webpack plugins and all Rspack plugins, and supports Module Federation for micro-frontend development. Other listed capabilities include TypeScript, code splitting, tree shaking, source maps, and a plugin API. It is available under the MIT license, with a free plan and no free trial. The v2 quick start requires Node.js 20.19+ or 22.12+, while v1 requires Node.js 18.12.0 or higher.

Who it suits

Rsbuild suits web application developers using its supported frameworks, or teams building micro-frontends with Module Federation. Check the Node.js requirement for the version you plan to use.

What it does well

Zero-configuration setup and a configurable build API
Framework plugins support React, Vue, Svelte, Solid, and Preact
Hot module replacement is enabled by default in development
Free and open source under the MIT license

What to know first

Rsbuild v2 requires Node.js 20.19+ or 22.12+
Production source maps can expose source code if publicly deployed

Plans

Plan	Billed and limits	Price
Free and open source	Free software · MIT license	Free

As rsbuild.rs lists them, read 7 Oct 2026. The maker's own page has the final word.

Getting started

Visit the Rsbuild website or open its linked StackBlitz example to try it online.
Choose Rsbuild v1 or v2 and meet that version's Node.js requirement.
Set up a project with the zero-configuration option or use the configurable build API.
Choose the framework plugin and any styling integrations your project needs.
Use the Discord community to chat with the Rstack team and community.

Verdict

Rsbuild provides a free build tool with support for several frameworks, styling tools, and plugin ecosystems. Its documentation flags Node.js version requirements and cautions against publicly deploying production source maps.

Questions

How much does Rsbuild cost?

Rsbuild is free and open source under the MIT license. Its listed plan costs nothing.

Is there a free trial?

No. Rsbuild is listed as having no free trial.

Which frameworks does Rsbuild support?

Framework plugins are available for React, Vue, Svelte, Solid, and Preact.

What platforms does Rsbuild run on?

The listed platform is web.

What Node.js version does Rsbuild require?

The v2 quick start requires Node.js 20.19+ or 22.12+. Rsbuild v1 requires Node.js 18.12.0 or higher.

Who publishes Rsbuild, and what license does it use?

The site footer credits ByteDance Inc. Rsbuild is free and open source under the MIT license.

Facts from Rsbuild's own pages

Bundler and compilation: Rsbuild uses Rspack by default and uses SWC to transform and minify JavaScript and TypeScript code. · rsbuild.rs, 7 Oct 2026
Configuration: It supports zero-configuration project setup and offers a configurable build API. · rsbuild.rs, 7 Oct 2026
Development: Hot module replacement is enabled by default in development mode. · rsbuild.rs, 7 Oct 2026
Frameworks: Framework plugins support React, Vue, Svelte, Solid, and Preact. · rsbuild.rs, 7 Oct 2026
Module Federation: Rsbuild offers first-class support for Module Federation for developing micro-frontend applications. · rsbuild.rs, 7 Oct 2026
Online example: The documentation links to a StackBlitz example for trying Rsbuild online. · rsbuild.rs, 7 Oct 2026
Production optimization: JavaScript and CSS minification are enabled by default for production builds. · rsbuild.rs, 7 Oct 2026
Publisher: The site footer credits ByteDance Inc. and says Rsbuild is free and open source under the MIT license. · rsbuild.rs, 7 Oct 2026
Purpose: Rsbuild is a modern build tool for web applications, powered by Rspack. · rsbuild.rs, 7 Oct 2026
Runtime requirement: For Rsbuild v2, the quick start guide requires Node.js 20.19+ or 22.12+; Rsbuild v1 requires Node.js 18.12.0 or higher. · rsbuild.rs, 7 Oct 2026
Security configuration: The docs warn that enabling CORS for all origins can expose the development server and recommend an allowlist of trusted origins. · rsbuild.rs, 7 Oct 2026
Security limitation: The docs warn that publicly deploying production source maps can expose source code and create security risks. · rsbuild.rs, 7 Oct 2026
Styling integrations: The feature guide lists optional Tailwind CSS and UnoCSS support, along with Sass, Less, and Stylus preprocessing. · rsbuild.rs, 7 Oct 2026
Support: The Rsbuild introduction invites users to chat with the Rstack team and community on Discord. · rsbuild.rs, 7 Oct 2026
Webpack compatibility: Rsbuild is compatible with most webpack plugins and all Rspack plugins. · rsbuild.rs, 7 Oct 2026

Where Rsbuild stands on Freedom251

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