YUI

Yahoo, New York, United States

YUI is a legacy, open-source JavaScript and CSS library for building interactive web applications with a focus on modular architecture and cross-browser consistency.

It includes over 30 modules covering DOM manipulation, event handling, animations, data utilities, and UI components, and provides a dependency management system with dynamic module loading.

According to our data, YUI ranks 163th among the JavaScript libraries we track.
It has 0.1% of the JavaScript library market share and is detected on 0.1% of all websites.

It is especially popular in Russia, appearing on 0.2% of all websites in the country.

Statistics based on 4M+ analyzed websites. About this data

💸 Pricing

YUI is available for free.

Free ✔️ Open source

📊 Rankings and Market Share

🏆 YUI Awards

⚡ Sites Using YUI

We have data on 4,014 websites that use the YUI JavaScript library. Here is a list of some of the top ranked ones.

The highest rated site using YUI is xxxbp.tv.

#WebsiteRankCountryLanguage
1 xxxbp.tv #796 United States English
2 smule.com #3,747 United States English
3 norstatsurveys.com #3,821 Sweden
4 forocoches.com #4,186 Spain Spanish
5 e-tesda.gov.ph #4,903 Philippines English
6 ox.ac.uk #5,535 United Kingdom English
7 dvidshub.net #7,134 English
8 ign.es #9,714 Spain European Spanish
9 moodle.org #11,227 Australia English
10 calibre-ebook.com #11,624 United States English
11 blueletterbible.org #11,642 United States English
12 gaiaonline.com #13,019 English
13 guildwars2.com #13,157 Korea American English
14 bogota.gov.co #16,176 Colombia Spanish
15 alsa.org #16,554 United States
16 givesmart.com #19,312 United States American English
17 jmu.edu #20,078 United States English
18 menofia.education #24,310 Egypt Arabic
19 mmo-champion.com #25,601 Sweden American English
20 bandab.com.br #26,724 Brazil Brazilian Portuguese

📈 Usage Statistics

Most of the sites that use YUI:

Most of the sites using YUI are from the United States, Russia, and Germany.

  • United States 26.1%
  • Russia 6.4%
  • Germany 5.5%
  • United Kingdom 5%
  • Japan 4.4%
  • Canada 4%
  • Spain 3.8%
  • Italy 3.4%
  • France 3%
  • Other 38.4%

Most YUI users speak English, Spanish, or Russian.

  • English 62.8%
  • Spanish 6.5%
  • Russian 5.6%
  • German 3.7%
  • Japanese 3.4%
  • Arabic 2.2%
  • French 1.9%
  • Portuguese 1.7%
  • Italian 1.5%
  • Other 10.7%

The YUI JavaScript library is especially popular on .com, .org, and .net top-level domains.

  • .com 39%
  • .org 14.9%
  • .net 5.5%
  • .ru 3.7%
  • .de 2.8%
  • .it 1.8%
  • .ca 1.6%
  • .co.uk 1.1%
  • .fr 1%
  • Other 28.6%

The primary market segments for websites utilizing YUI include forum, bulletin boards, education and reference, and business.

  • Forum/Bulletin Boards 20.6%
  • Education/Reference 10.5%
  • Business 10.1%
  • Marketing/Merchandising 7.5%
  • Non-Profit/Advocacy/NGO 6.1%
  • Health 4.8%
  • Entertainment 3.9%
  • Internet Services 3%
  • Blogs/Wiki 2.8%
  • Other 30.7%

🔢 YUI Versions

The most widespread version of YUI is 2.9, used by 68.6% of sites where versions were detected. In addition, 8.4% of sites use YUI 3.18, and 3.1% use YUI 2.7.

  • 2.9 68.6%
  • 3.18 8.4%
  • 2.7 3.1%
  • 2.8 2.5%
  • 3.6 2.4%
  • 3.5 1.8%
  • 2.6 1.7%
  • 3.3 1.7%
  • 3.17 1.5%
  • Other 8.3%

🕵️ Similar Technologies

These are some of the best YUI alternatives.

RankName
1
jQuery
San Francisco, California, United States

A fast, small, feature-rich JavaScript library designed to simplify HTML DOM tree traversal and manipulation, event handling, CSS animations, and Ajax.

FreeOpen source
73
MooTools
Rome, Italy

An open-source JavaScript library that simplifies DOM manipulation, event handling, AJAX, animations, and object-oriented application development.

FreeOpen source
105
Prototype
United States

A legacy open-source JavaScript framework that eases cross-browser development of dynamic web applications.

FreeOpen source
148
Scriptaculous
Tucson, Arizona, United States

An open-source JavaScript library built on the Prototype framework that provides visual effects, user interface controls, and AJAX utilities for web applications.

FreeOpen source
245
Zepto
Tucson, Arizona, United States

A lightweight and modular open-source JavaScript library with a largely jQuery-compatible API, designed for modern browsers and optimized for fast execution and small file size.

FreeOpen source

🆚 Compare Alternatives

Compare YUI to…

💬 Frequently Asked Questions

What is the company behind YUI?

YUI is owned by Yahoo! Inc., headquartered in New York, United States.

Is YUI free?

Yes, it is a free JavaScript library.
It is also an open-source solution, and you can access its source code on GitHub.

Which country uses YUI the most?

The majority of YUI users are from the United States.

Who uses YUI?

According to our data, YUI is used on thousands of sites, including such established ones as smule.com, norstatsurveys.com, and forocoches.com.

Is YUI used on government websites?

Yes, for example, it is used by e-tesda.gov.ph and bogota.gov.co. In total, we found YUI on 3 government sites in the United States.

Do academic institutions use YUI?

Yes. The most notable of these are ox.ac.uk and jmu.edu. Overall, we know of 12 academic websites in the United States that use YUI.

How does YUI stack up against its competitors?

YUI is a moderately popular JavaScript library, ranking ahead of 154 other JavaScript libraries we track.

What are the alternatives to YUI?

Alternatives and possible competitors to YUI may include jQuery, MooTools, and Prototype.

👉 See Also

🗃️ About This Data