Version 7.0.0
Node.js test runner that lets you develop with confidence.
- Weekly Downloads
- 612.1K
- Bundle (gzip)
- 656.0 B
- Updated
- Vulns
- 0
Side-by-side NPM package comparison
Smallest Bundle
Ava
656.0 B gzipped
Most Popular
Vitest
42.7M weekly downloads
Best Maintained
Vitest
100/100 maintenance score
Highest Quality
Ava
80/100 quality score
Overall Pick
Vitest
Best all-around based on popularity, size, maintenance & quality
Version 7.0.0
Node.js test runner that lets you develop with confidence.
Version 4.1.2
Next generation testing framework powered by Vite
Choosing between Ava and Vitest? Here's a data-driven comparison based on real npm data — downloads, bundle size, health scores, and more — to help you decide which package fits your project best.
Vitest leads with 42.7M weekly downloads — roughly 69.7x more. Ava has 612.1K weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Ava has the smallest gzipped bundle at 656.0 B. Vitest comes in at 553.1 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Vitest has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Ava has an overall health score of 84/100 (very good), with strong maintenance, quality, security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
Choose Ava if you value minimal bundle footprint, strong security track record. Choose Vitest if you value massive community and ecosystem, actively maintained, strong security track record.
Both Ava and Vitest are solid choices for JavaScript development. Vitest has the edge in overall health score (85/100), while each package brings unique strengths to the table. Evaluate them based on your project's priorities — whether that's community size, bundle efficiency, or maintenance activity — and choose the one that aligns best with your requirements.
One PDF: the best package for every category (ORMs, bundlers, auth, testing, state management). Used by 500+ devs. Free, updated monthly.