jest vs vitest
Estimated humans, week by week
- jest
- vitest
- npm downloads (same color, dashed)
The 12-month chart is drawn in the browser from the npm API.
jest vs vitest: which is more popular?
| package | npm / week | humans / week | inflation | confidence |
|---|---|---|---|---|
| jest | 61,364,548 | 61,347,004–61,364,548 | less than 1% | high |
| vitest | 171,070,982 | 171,041,887–171,070,982 | less than 1% | high |
Snapshot from the daily build of Nov 3, 2026, last 7 days of npm data. With JavaScript on, this page recomputes it live with a 12-month chart.
By estimated real human installs, vitest is ahead of jest by about 2.8×: about 171,068,046 vs 61,362,671 a week. npm's raw counts are 61,364,548 for jest and 171,070,982 for vitest, which include mirrors, scanners and crawlers.
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.