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Head-to-Head NPM Comparison

jestvsvitest

Detailed package comparison for bundle size, weekly downloads, supply chain security, and license obligations.

Weekly Downloads Leader
vitest77.5M/wk
Security Grade Leader
Equal Rating100/100
TypeScript Ready
Both Native
Specification
jestv30.5.2
vitestv5.0.5
Weekly Downloads25.8M77.5MWinner
Unpacked Size6.5 KB2.69 MB
Security Grade
A+(100/100)
A+(100/100)
Lifecycle Scripts Clean (No scripts) Clean (No scripts)
TypeScript Support Built-in Types (.d.ts) Built-in Types (.d.ts)
License TypeMITPERMISSIVEMITPERMISSIVE
Direct Dependencies413
Active Maintainers55
Last ReleaseSep 18, 2026Oct 15, 2026
Install Commandnpm i jestnpm i vitest
Full Security ReportView jest AuditView vitest Audit
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Frequently Asked Questions

Which package is more popular, jest or vitest?
vitest is currently more popular with higher weekly downloads (77.5M/week) compared to jest (25.8M/week).
Which has better supply chain security, jest or vitest?
jest has a security score of 100/100 (Grade A+), while vitest holds 100/100 (Grade A+). Both packages have equal security standings.
Do jest and vitest provide TypeScript definitions?
jest includes built-in TypeScript types, while vitest includes native TypeScript definitions.
What licenses do jest and vitest use?
jest is published under the MIT license (PERMISSIVE), and vitest is licensed under MIT (PERMISSIVE).