79
GoodAnother JSON Schema Validator
- Weekly Downloads
- 290.5M
↑6%
- Bundle (gzip)
- 302.8 KB
- Updated
- Vulns
- 0
Health Score Breakdown
Maintenance
80
Popularity
100
Quality
50
Security
100
Stability
70
Comparison guide
Ajv vs Typebox
Side-by-side NPM package comparison
Quick Verdict
Smallest Bundle
Ajv
302.8 KB gzipped
Most Popular
Ajv
290.5M weekly downloads
Best Maintained
Typebox
100/100 maintenance score
Highest Quality
Typebox
80/100 quality score
Overall Pick
Ajv
Best all-around based on popularity, size, maintenance & quality
92
ExcellentJson Schema Type Builder with Static Type Resolution for TypeScript
- Weekly Downloads
- 3.6M
↑876%
- Bundle (gzip)
- 430.7 KB
- Updated
- Vulns
- 0
Health Score Breakdown
Maintenance
100
Popularity
100
Quality
80
Security
100
Stability
70
Choosing between Ajv and Typebox? 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.
Downloads & Popularity
Ajv leads with 290.5M weekly downloads — roughly 80.7x more. Typebox has 3.6M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Bundle Size
Ajv has the smallest gzipped bundle at 302.8 KB. Typebox comes in at 430.7 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Health Score Comparison
Typebox has an overall health score of 92/100 (excellent), with strong maintenance, quality, security, popularity scores. Ajv has an overall health score of 79/100 (very good), with strong maintenance, security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
When to Choose Each
Choose Ajv if you value massive community and ecosystem, strong security track record. Choose Typebox if you value large community support, actively maintained, strong security track record.
Our Verdict
Both Ajv and Typebox are solid choices for JavaScript development. Typebox has the edge in overall health score (92/100), 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.
Frequently Asked Questions
- Is ajv better than typebox?
- It depends on your needs. Ajv has a health score of 79/100 while Typebox scores 92/100. Ajv has more weekly downloads (290.5M), suggesting broader adoption. Consider your specific requirements — bundle size, community support, and feature set — to decide which is the better fit.
- Which has a smaller bundle size, ajv or typebox?
- Ajv has the smaller gzipped bundle at 302.8 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
- How many developers use ajv vs typebox?
- Based on npm download statistics, Ajv has approximately 290.5M weekly downloads and Typebox has approximately 3.6M weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
- Which is better maintained, ajv or typebox?
- Typebox currently has the higher overall health score at 92/100. Ajv has a maintenance score of 80/100 and Typebox scores 100/100 on maintenance.
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One PDF: the best package for every category (ORMs, bundlers, auth, testing, state management). Used by 500+ devs. Free, updated monthly.