Side by side
Rslib vs SWC
Both stand on javascript build tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APILinuxMac+2
Choose Rslib for JavaScript packages or UI component libraries when its output formats, framework integrations, and plugin support fit your build. Look elsewhere if you need declaration files generated without enabling that option or cannot meet the Node.js requirement for v1.
Visit Rslib
Free plan AndroidAPILinux+3
SWC covers compilation and transformation needs with multiple integrations and package options, and it is free. Its bundling roadmap and documented polyfill limitation are worth considering before choosing it for those tasks.
Visit SWCThe facts
| Rslib | SWC | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Linux, Mac, Web, Windows | Android, API, Linux, Mac, Web, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | lib.rsbuild.dev | swc.rs |
| On javascript build tools | #6 of 27 | #10 of 27 |
Rslib: what it does well
- Builds ESM, CJS, UMD, Module Federation, and IIFE outputs.
- Supports bundle and bundleless build modes.
- Framework integrations cover React, Vue, Svelte, and Solid.
- Works with Rsbuild, Rspack, and webpack plugins.
- MIT-licensed and free to use.
What to know first
- TypeScript declaration generation is off by default.
- Rslib v1 requires Node.js 20.19+ or 22.12+.
SWC: what it does well
- Compiles modern JavaScript and TypeScript for major browsers.
- Supports minification, WebAssembly transforms, and custom plugins.
- Offers integrations for webpack, Rspack, and Jest.
- Targets browsers, iOS, Android, Node, and Electron.
- Free plan; packages documented for five package managers.
What to know first
- Bundling is slated for removal in v2.
- Polyfill usage is less efficient for certain computed properties.