Category - JavaScript Libraries

YUI is a free, open source JavaScript and CSS framework for building richly interactive web applications.

We have discovered  58,180 live websites   that are using YUI.

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Technology usage statistics

Websites using YUI58,180 websites
Most popular in the country United States
Market position in JavaScript Libraries#138
Market penetration in JavaScript Libraries0.14%
Most popular version2.9.0

Technology adoption

Recent changes in YUI usage. (See YUI Usage Changes report)
Websites that added YUI+4,343
Websites that dropped YUI-4,250
Websites that changed version of YUI642

YUI usage distribution by website popularity

Geographical Distribution

Technology usage distribution by websites across the globe.

Websites utilizing YUI

Top websites that use YUI

flickr.com United States156
www.flickr.com United States156
www.researchgate.net United States692
ross.typepad.com United States985
store.cpanel.net United States1,024
notfound.typepad.com United States1,256
See full domain list
Flat price per the report, subscription is not required.

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Polyfill: Total 7,682,070 domains found using Polyfill
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Google Hosted Libraries: Total 4,971,012 domains found using Google Hosted Libraries
React: Total 4,939,066 domains found using React
html5shiv: Total 4,590,710 domains found using html5shiv
Modernizr: Total 3,428,060 domains found using Modernizr

Alternative Names

  • YUI Library
  • Yahoo! User Interface Library

Major Versions

  • 0.xx (3 subversions, 247 domains)
  • 1.xx (2 subversions, 53 domains)
  • 2.xx (15 subversions, 4,153 domains)
  • 3.xx (26 subversions, 1,780 domains)