JavaScript frameworks
Who left ExtJS, and who still runs it
231 websites in the top 1M run ExtJS, observed directly from the rendered page in the July 2026 crawl.
87
stopped running it that month
11
of those are 11–500 employees
169
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running ExtJS
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
jQuery 60%HSTS 50%Google Analytics 34%Java 32%PHP 30%Cloudflare 28%Apache HTTP Server 28%Bootstrap 27%Microsoft 365 26%Microsoft ASP.NET 24%
Share of a 231-domain sample of ExtJS users that also run each.