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UglifyJS

JavaScript parser, minifier, compressor and beautifier toolkit.

UglifyJS is a JavaScript parser, minifier, compressor and beautifier toolkit, written in JavaScript. It is installed from npm, either as a command-line app that runs on the developer’s machine or as a package that Node.js code requires. The source and its repository are public, and the copyright line names Mihai Bazon.

Worth knowing

The project’s homepage says its pages are old and describe an earlier major version, and it points readers to the repository for documentation of the current one.

Identity

Status
Active
Maintainer
Alex Lam1
Maintained by
Individual1
First release
20117

Rendering and deploy

Runs as
Dev only3
Install with
npm, command line: npm install uglify-js -g3

Releases

Current major version
38
Last release
2024-08-298

Adoption

GitHub stars
13,3702
npm downloads a week
55,241,80710
Contributors
1169
Dependent repositories
2,199,11911
Dependent packages
26,56811

Why these figures do not compare

Sources

  1. 2026-10-28: links, Maintainer, Maintained by
    lisperator.net/uglifyjs/
  2. 2026-10-28: links, Written in, GitHub stars
    api.github.com/repos/mishoo/UglifyJS
  3. 2026-10-28: links, Categories, Install with, Runs as
    github.com/mishoo/UglifyJS/blob/v3.19.3/README.md
  4. 2026-10-28: Runtime, Minimum runtime
    github.com/mishoo/UglifyJS/blob/v3.19.3/package.json
  5. 2026-10-28: License
    registry.npmjs.org/uglify-js/3.19.3
  6. 2026-10-28: License
    github.com/mishoo/UglifyJS/blob/v3.19.3/LICENSE
  7. 2026-10-28: First release
    registry.npmjs.org/uglify-js
  8. 2026-10-28: Current major version, Last release
    api.github.com/repos/mishoo/UglifyJS/releases/latest
  9. 2026-10-28: Contributors
    api.github.com/repos/mishoo/UglifyJS/contributors?per_page=1
  10. 2026-10-28: npm downloads a week
    api.npmjs.org/downloads/range/2026-09-28:2026-10-04/uglify-js
  11. 2026-10-28: Dependent packages, Dependent repositories
    packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/uglify-js

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