Technology · JavaScript libraries

Polyfill

Polyfill is one of 232 technologies we detect in JavaScript libraries.

detected by AwesomeTechStack auditspolyfill.io

About Polyfill

Polyfill is a service which accepts a request for a set of browser features and returns only the polyfills that are needed by the requesting browser.

How many people use Polyfill

GitHub · npm
  1. #97dc.js7.4k
  2. #98decimal.js7.3k
  3. #99Screenfull.js7.1k
  4. #100Polyfill7.1k
  5. #101TogetherJS7k
  6. #102Lightbox6.4k
  7. #103lite-youtube-embed6.3k

152k npm downloads, last 30 days

#100 of 198 JavaScript libraries we have counts for (of 232) · bars are GitHub stars across these neighbours; the category leader is Axios at 109k · as of September 7, 2026

Compare

Polyfill

#100 of 198 JavaScript libraries

stars7.1k
downloads / 30d152k
Screenfull.js

#99 of 198 JavaScript libraries

stars7.1k
downloads / 30d20M

Audit any site that runs Polyfill.

Enter a URL to score its stack for technology quality, version health, Lighthouse performance - and AI-readiness.

How we audit Polyfill

We measure the detected version against Polyfill's release history and grade the surrounding stack with a Lighthouse-grade quality audit. Weak or outdated links weigh more - one risky dependency can pull the whole score down.

How the score works

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Technology definitions from a community-maintained catalogue, licensed GPL-3.0. Attribution and source.