Side-by-side NPM package comparison
Version 1.2.0
The modular and type safe schema library for validating structural data
Version 4.3.6
TypeScript-first schema declaration and validation library with static type inference
Choosing between Valibot and Zod? 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.
Zod leads with 105.8M weekly downloads — roughly 16.1x more. Valibot has 6.6M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Zod has the smallest gzipped bundle at 57.1 KB. Valibot comes in at 509.4 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Zod has an overall health score of 86/100 (very good), with strong maintenance, quality, security, popularity scores. Valibot has an overall health score of 80/100 (very good), with strong quality, security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
Choose Valibot if you value large community support, strong security track record. Choose Zod if you value massive community and ecosystem, strong security track record.
Both Valibot and Zod are solid choices for JavaScript development. Zod has the edge in overall health score (86/100), 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.