JavaScript libraries · comparison
jQuery Migrate vs Underscore.js
jQuery Migrate is used on 2,285,654 sites, 7.8 times as many as Underscore.js (293,233 sites).
In JavaScript libraries, jQuery Migrate ranks #2 and Underscore.js #11 by number of sites.
From Jul 2026 to Oct 2026, jQuery Migrate grew 0.3% and Underscore.js grew 0.2%.
243,767 sites run both: 11% of jQuery Migrate sites and 83% of Underscore.js sites. Most Underscore.js sites also run jQuery Migrate: the two are often used together.
Jm
jQuery Migrate
github.com/jquery/jquery-migrate
- Sites
- 2,285,654
- Share of tracked sites
- 14.92%
- Rank in JavaScript libraries
- #2
- Change since Jul 2026
- ▲ +0.26%
Un
Underscore.js
underscorejs.org
- Sites
- 293,233
- Share of tracked sites
- 1.91%
- Rank in JavaScript libraries
- #11
- Change since Jul 2026
- ▲ +0.23%
Sites using both
243,767
sites run jQuery Migrate and Underscore.js
of jQuery Migrate sites10.7%
of Underscore.js sites83.1%
Top sites using jQuery Migrate
- telangana.gov.in#12,081
- roszdravnadzor.gov.ru#28,145
- roszdravnadzor.ru#50,147
- ai-gakkai.or.jp#117,764
- true.academy#137,022
Often used with jQuery Migrate
Top sites using Underscore.js
- ai-gakkai.or.jp#117,764
Often used with Underscore.js
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.