JavaScript frameworks
Who left UmiJs, and who still runs it
248 websites in the top 1M run UmiJs, observed directly from the rendered page in the July 2026 crawl.
41
stopped running it that month
1
of those are 11–500 employees
207
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running UmiJs
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Node.js 100%core-js 98%React 79%Webpack 67%Ant Design 48%Lodash 42%Google Analytics 40%Open Graph 39%Cloudflare 38%Amazon Web Services 34%
Share of a 248-domain sample of UmiJs users that also run each.