vitest
Next generation testing framework powered by Vite
npm says
171,070,982 / week
Every tarball fetch: mirrors, scanners, CI and people.
probably humans
≈ 171,041,887–171,070,982 / week
best guess 171,068,046 high confidence
Snapshot from the daily build of Nov 3, 2026, last 7 days of npm data. With JavaScript on, this page recomputes it live from the npm API.
How many people actually use vitest?
npm counted 171,070,982 downloads of vitest in the last 7 days. That count includes every tarball fetch: registry mirrors, security scanners, CI pipelines and crawlers as well as people. humanloads estimates that about 171,068,046 of them (likely range 171,041,887–171,070,982) were real human installs, with high confidence. That puts less than 1% of npm's weekly count down to robots.
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 an honest confidence level.