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Comparison guide

Arktype vs Typebox vs Valibot vs Zod-v4

Side-by-side NPM package comparison

Quick Verdict

Smallest Bundle

Zod-v4

67.0 B gzipped

Most Popular

Valibot

11.8M weekly downloads

Best Maintained

Typebox

100/100 maintenance score

Highest Quality

Typebox

80/100 quality score

Overall Pick

Valibot

Best all-around based on popularity, size, maintenance & quality

arktype icon

arktype

Very Popular

Version 2.2.0

0
73
Good

TypeScript's 1:1 validator, optimized from editor to runtime

Weekly Downloads
1.1M
6%
Bundle (gzip)
98.5 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
60
Popularity
100
Quality
50
Security
100
Stability
70
typebox icon

typebox

Very Popular

Version 1.2.2

0
92
Excellent

Json Schema Type Builder with Static Type Resolution for TypeScript

Weekly Downloads
4.2M
408%
Bundle (gzip)
435.1 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
100
Quality
80
Security
100
Stability
70
valibot icon

valibot

Extremely Popular

Version 1.4.1

0
92
Excellent

The modular and type safe schema library for validating structural data

Weekly Downloads
11.8M
34%
Bundle (gzip)
539.9 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
100
Quality
80
Security
100
Stability
70

zod-v4

Niche

Version 0.0.1

0
67
Good

Security research placeholder - dependency confusion prevention

Weekly Downloads
19
Stable
Bundle (gzip)
67.0 B
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
10
Quality
50
Security
100
Stability
70

Choosing between Arktype and Typebox and Valibot and Zod-v4? 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

Valibot leads with 11.8M weekly downloads — roughly 2.8x more. Typebox has 4.2M weekly downloads. Arktype has 1.1M weekly downloads. Zod-v4 has 19 weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.

Bundle Size

Zod-v4 has the smallest gzipped bundle at 67.0 B. Arktype comes in at 98.5 KB. Typebox comes in at 435.1 KB. Valibot comes in at 539.9 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. Valibot has an overall health score of 92/100 (excellent), with strong maintenance, quality, security, popularity scores. Arktype has an overall health score of 73/100 (good), with strong security, popularity scores. Zod-v4 has an overall health score of 67/100 (good), with strong maintenance, security scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.

When to Choose Each

Choose Arktype if you value large community support, strong security track record. Choose Typebox if you value large community support, actively maintained, strong security track record. Choose Valibot if you value massive community and ecosystem, actively maintained, strong security track record. Choose Zod-v4 if you value minimal bundle footprint, actively maintained, strong security track record.

Our Verdict

Both Arktype and Typebox and Valibot and Zod-v4 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 arktype better than typebox?
It depends on your needs. Arktype has a health score of 73/100 while Typebox scores 92/100. Typebox has more weekly downloads (4.2M), 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, arktype or typebox?
Arktype has the smaller gzipped bundle at 98.5 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
How many developers use arktype vs typebox?
Based on npm download statistics, Arktype has approximately 1.1M weekly downloads and Typebox has approximately 4.2M weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
Which is better maintained, arktype or typebox?
Typebox currently has the higher overall health score at 92/100. Arktype has a maintenance score of 60/100 and Typebox scores 100/100 on maintenance.

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