core-js vs Selectize

core-js is the more common of the two in our index: it runs on 16,603 websites against 142 for Selectize, and 76 sites use both. Counts come from real scans, not vendor claims.

core-js: 16,603
Selectize: 142

core-js

core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.

Indexed sites: 16,603
Share of JavaScript libraries: 45%

Well-known sites using it

microsoft.com3.6.4
mail.ru3.26.1
dzen.ru2.6.12
azure.com3.25.0
cloud.microsoft3.33.0
gandi.net3.45.1

All 16,603 sites

Selectize

Selectize is an extensible jQuery-based custom <select> UI control.

Indexed sites: 142
Share of JavaScript libraries: 0%

Well-known sites using it

All 142 sites

Used together

76 sites run both core-js and Selectize. That is 54% of the sites using Selectize, the smaller of the two.

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Want to know which one a particular site uses? Look it up and see its whole stack, or compare two sites side by side.