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Rslib vs UglifyJS

Rslib

lib.rsbuild.dev

UglifyJS

github.com

Side by side

FigureRslibUglifyJS
Price fromFreeFree
Free planYesYes
Free trial——
Open source——
WebYes—
WindowsYes—
macOSYes—
LinuxYesYes
APIYesYes
Self-hosted—Yes
Plans published11
Spec score · JavaScript Build Tools8.6 (#2)7.3 (#22)
LicenseRslib is free and open source software released under the MIT license.UglifyJS is released under a BSD license.
PurposeRslib is an Rsbuild-based tool for developing JavaScript libraries and UI component libraries.UglifyJS is a JavaScript parser, minifier, compressor and beautifier toolkit.

Plans

Rslib

  • Free and open sourceFree

Rslib pricing →

UglifyJS

  • UglifyJSFree

UglifyJS pricing →

In their own words

Rslib

Rslib is a free, open-source tool for developing JavaScript packages and UI component libraries. Based on Rsbuild and powered by Rspack, it integrates Rust-based tools including SWC and Lightning CSS. It supports bundle and bundleless build modes and outputs ESM, CJS, UMD, Module Federation, and IIFE formats. Framework integrations support component libraries for React, Vue, Svelte, and Solid. Rslib can generate TypeScript declaration files, including isolated declarations, though declaration generation is not enabled by default. Plugin support includes Rsbuild, Rspack, and webpack plugins. Its development integrations include Rstest for testing, Storybook for component development, Rspress for documentation and component previews, and Rsdoctor for build analysis. The quick-start guide lists Node.js, Deno, and Bun as runtime options, while Rslib v1 requires Node.js 20.19+ or 22.12+. It is available for API, Linux, macOS, web, and Windows, and is released under the MIT license.

Visit lib.rsbuild.dev

UglifyJS

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

Visit github.com