JavaScript libraries · comparison

jQuery vs Polyfill

jQuery is used on 5,058,876 sites, 608 times as many as Polyfill (8,319 sites).

In JavaScript libraries, jQuery ranks #1 and Polyfill #52 by number of sites.

From Jul 2026 to Oct 2026, jQuery grew 0.3% and Polyfill grew less than 0.1%.

4,825 sites run both: less than 0.1% of jQuery sites and 58% of Polyfill sites. Most Polyfill sites also run jQuery: the two are often used together.

Jq

jQuery

jquery.com
Sites
5,058,876
Share of tracked sites
32.39%
Rank in JavaScript libraries
#1
Change since Jul 2026
▲ +0.3%
Po

Polyfill

polyfill.io
Sites
8,319
Share of tracked sites
0.05%
Rank in JavaScript libraries
#52
Change since Jul 2026
▲ +0.07%

Sites using both

4,825
sites run jQuery and Polyfill
of jQuery sites<0.1%
of Polyfill sites58%

Top sites using jQuery

  1. telangana.gov.in#12,081
  2. roszdravnadzor.gov.ru#28,145
  3. roszdravnadzor.ru#50,147
  4. egypt.travel#62,813
  5. sdeerlive.com#85,573
All jQuery sites →

Often used with jQuery

Top sites using Polyfill

No ranked site yet.

All Polyfill sites →

Often used with Polyfill

More JavaScript libraries comparisons

Site counts and ranks come from our crawl of the web; the change compares the monthly adoption snapshots both technologies have.