happy-dom
Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web st…
npm says
32,986,411
per week
Every tarball fetch: mirrors, scanners, CI and people.
real installs
high confidence≈ 33M
per week
Mirror spikes and crawlers removed. CI and dependency installs still count, so this is not a head count.
noise under 1% of npm's count, so nearly all of it counts. noise real installs
Why this estimate
With JavaScript on, this lists what the filter found for this package.
Most used major version: 20, not the latest one, with 54% of last week's downloads above the crawler floor. Most used single version: 21.0.4.
Snapshot from the daily build of Nov 6, 2026, last 7 days of npm data. With JavaScript on, this page recomputes it live from the npm API.
How many people use happy-dom?
npm counted 32,986,411 downloads of happy-dom in the last 7 days. Nobody can count people exactly, npm included: it does not record who downloaded what. After removing mirror spikes and crawlers, about 33M look like real installs. At this scale most of them come from CI, builds and other packages that depend on happy-dom, so the number of people behind them is far smaller.
Is happy-dom still maintained?
Most likely yes, going by its releases. The latest version, 21.0.4, came out on Oct 20, 2026. The last 12 months saw 82 stable releases, typically 2 days apart. It was first published on Sep 15, 2019. npm lists 1 maintainer.
Is happy-dom still used?
Downloads with publish spikes removed are up 129% over 3 months and up 828% over 11 months. For scale, the median of the 269 packages we track, which lean towards today's most downloaded, is up 157% over 11 months, so this one is ahead of that. Last week, 54% of downloads above the crawler floor were on major version 20, not the latest one; the most used single version was 21.0.4, with 35%. Weekdays get 1.4× the downloads of weekends, which fits people at work, though CI follows the same rhythm. Crawlers account for about 4,668 downloads a week, roughly 6 per version.
How the estimate works
- Cut the spike every new version gets from mirrors in its first days.
- Subtract the flat floor robots download from every version each week.
- Show what is left as a range, with a confidence level. It still includes CI and dependency installs, so it is not a count of people.