JestvsVitest
Head-to-Head Stats
JestVitest
Weekly Downloads22.0M8.2M
GitHub Stars44.0K13.0K
Repos Using198.0K52.0K
Contributors1500420
Open Issues1100680
Bundle SizeN/AN/A
TypeScriptdefinitely-typednative
Growth Rate-4.5%+35.4%
Last Release2025-11-152026-03-25
Adoption Over 12 Months (repos in thousands)
Jest
Vitest
Side-by-Side Bars
Jest: 22.0MVitest: 8.2M
Jest Stars: 44.0KVitest Stars: 13.0K
Jest Repos: 198.0KVitest Repos: 52.0K
Migration Flow (Last 30 Days)
567
Jest → Vitest
vs
8
Vitest → Jest
Repos using Jest also use:
ReactBabelwebpackenzyme@testing-library/reactts-jest
Repos using Vitest also use:
ViteReactTypeScript@testing-library/reactPlaywrighthappy-dom
Analysis & Verdict
Vitest is the natural testing companion for Vite-based projects and is rapidly eating into Jest market share. With 35% growth vs Jest decline, Vitest will likely surpass Jest in new project adoption within 12 months.