Rolldown
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VisitRolldown vs Rspack
What both publish
| Fact | Rolldown | Rspack |
|---|---|---|
| Built-in features | Built-in capabilities include TypeScript and JSX transforms, module resolution, ESM/CJS interop, define, inject, and minification. | The homepage lists code splitting, tree shaking, asset management, a dev server, parallel builds, SWC, Lightning CSS, and a JavaScript build API. |
| License | Rolldown is free and open source; VoidZero states that it remains open source and MIT-licensed. | Rspack is free and open source software released under the MIT license. |
| Purpose | Rolldown is a Rust-based bundler for JavaScript with a Rollup-compatible API and esbuild feature parity. | Rspack is a fast Rust-based bundler for the web that modernizes the webpack API to support replacing webpack. |
Rolldown plans
- Free & open sourceFree
Rspack plans
- Free and open sourceFree
Pick Rolldown if…
Rolldown suits JavaScript developers looking for a bundler with TypeScript and JSX transforms and a Rollup-compatible plugin API. Its guidance points most application developers toward using it through Vite and library authors toward tsdown.
Pick Rspack if…
Rspack suits web developers looking for a bundler with webpack-oriented APIs, Rust and TypeScript implementation, and framework integrations. It also fits teams that want to write custom plugins or loaders in JavaScript or Rust.