Sites built with YUI
Yahoo User Interface Library, a legacy JavaScript framework for building web applications.
Get told when a new site ships with YUI.
Stackdar watches every launch we detect and sends you the ones using YUI, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work247 sites
246 found by StackScope, 1 via launch platforms
- StackScope Wider Web 244
- StackScope Discovery (Indie) 2
- Product Hunt 1
YUI has been detected on 247 launches we've crawled, with 17 of those in September 2026 (0.0% of the month's launches so far). The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Accueil | MonCollege CDI, today.
It's most commonly paired with jQuery, Moodle, and MathJax. By product type, the launches using it are most often Education (81%), Developer Tools (3%), and Games (3%). By domain ending, launches using it are 11.3 times as likely as the average launch to live on a .cloud domain.
What kind of products ship with YUI
69 launches
Domain endings using YUI
247 sites
- .com 37.25%
- .online 14.17%
- .org 9.72%
- .cloud 8.50%
- .ca 3.64%
- .site 3.64%
- .net 3.24%
- .tech 2.83%
- .uk 2.83%
Country
27 of 247 sites, where we are semi-confident of the country.
-
United Kingdom
25.93%
-
Vietnam
22.22%
-
Canada
11.11%
-
India
11.11%
-
Switzerland
7.41%
-
Germany
7.41%
-
Chile
3.70%
-
Italy
3.70%
-
Mexico
3.70%
Share of new sites using YUI
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
How StackScope detects technologies
⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.
Javascript Library leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
jQuery
|
14.34% | 34.59% |
| #2 | – |
React Router
|
6.77% | 16.32% |
| #3 | – |
Motion
|
6.66% | 16.07% |
| #4 | – |
TanStack Router
|
4.24% | 10.24% |
| #5 | – |
Swiper
|
3.63% | 8.75% |
| … | ||||
| #200 | ▼14 | YUI Current page | 0.01% | 0.02% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool.Among August launches it ranked #201 in Javascript Library, down from #187 in July. All 1101 in Javascript Library →
Often used with
| Tool | Sites |
|---|---|
|
jQuery
|
232 |
Moodle
|
220 |
MathJax
|
200 |
jsDelivr
|
100 |
Tailwind CSS
|
95 |
Tools most often detected on the same sites as YUI.
Recent launches we can show
3 of the 247 sites using YUI are product launches we list individually. The other 244 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
The StackScope API serves all 247 sites using YUI, filterable and exportable, from £15 a month.