JavaScript libraries
Who left Howler.js, and who still runs it
2,124 websites in the top 1M run Howler.js, observed directly from the rendered page in the July 2026 crawl.
351
stopped running it that month
27
of those are 11–500 employees
1,598
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Howler.js
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Cloudflare 74%Open Graph 72%Google Analytics 60%core-js 59%PWA 52%HTTP/3 48%jQuery 45%HSTS 41%Google Font API 41%Cloudflare Browser Insights 40%
Share of a 2,124-domain sample of Howler.js users that also run each.