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SPECIFICTION
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Rspack vs unbuild

Rspack

rspack.rs

unbuild

github.com

Side by side

FigureRspackunbuild
Price fromFreeFree
Free planYesYes
Free trial——
Open source——
WebYes—
WindowsYes—
macOSYes—
LinuxYes—
Self-hostedYes—
Plans published12
Spec score · JavaScript Build Tools7.8 (#11)7.1 (#26)
LicenseRspack is free and open source software released under the MIT license.The repository is released under the MIT license.
PurposeRspack is a fast Rust-based bundler for the web that modernizes the webpack API to support replacing webpack.unbuild is a unified JavaScript build system.

Plans

Rspack

  • Free and open sourceFree

Rspack pricing →

unbuild

  • MIT-licensed open-source softwareFree
  • unbuildFree

unbuild pricing →

In their own words

Rspack

Rspack is a free, open-source bundler for web projects, built with Rust and TypeScript. Its parallelized architecture supports parallel builds, while incremental compilation is used to improve hot module replacement. Rspack updates the webpack API with the aim of supporting webpack replacement, but it does not promise full API compatibility; it prioritizes commonly used APIs and adds others based on user needs. It works with almost all community loaders, and over 85% of the 50 most downloaded webpack plugins can be used with it or have an alternative. Built-in capabilities include code splitting, tree shaking, asset management, a development server, SWC, Lightning CSS, and a JavaScript build API. Documented integrations cover React, React Server Components, Preact, Vue, Next.js, Node.js applications, NestJS, Solid, Svelte, and Rstest. Custom plugins and loaders can be written in JavaScript or Rust. Rspack 1.0 was released in August 2024 and is described as production-ready. It is available for Linux, macOS, and Windows, as well as web and self-hosted environments. The software is released under the MIT license; questions can be directed to Discord or GitHub Discussions.

Visit rspack.rs

unbuild

unbuild has no write-up on Specifiction yet; its figures are above.

Visit github.com