A simple and composable way to validate data in JavaScript (and TypeScript).
- Weekly Downloads
- 0
Trend data unavailable
- Bundle (gzip)
- 3.4 KB
- Updated
- Vulns
- 0
Comparison guide
Side-by-side NPM package comparison

Smallest Bundle
Superstruct
3.4 KB gzipped
Most Popular
Superstruct
0 weekly downloads
Best Maintained
Zod
100/100 maintenance score
Highest Quality
Zod
80/100 quality score
Overall Pick
Zod
Best all-around based on popularity, size, maintenance & quality
A simple and composable way to validate data in JavaScript (and TypeScript).
Trend data unavailable
TypeScript-first schema declaration and validation library with static type inference
Trend data unavailable
Choosing between Superstruct 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.
Superstruct and Zod both have 0 weekly downloads, indicating equal adoption in the ecosystem.
Superstruct has the smallest gzipped bundle at 3.4 KB. Zod comes in at 60.3 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 74/100 (good), with strong maintenance, quality, security scores. Superstruct has an overall health score of 43/100 (moderate), with strong security scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
Choose Superstruct if you value minimal bundle footprint, strong security track record. Choose Zod if you value actively maintained, strong security track record.
Both Superstruct and Zod are solid choices for JavaScript development. Zod has the edge in overall health score (74/100), 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.
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