OpenAPI vs Zod
Updated Oct 18, 2026
Quick Verdict
Both OpenAPI and Zod are popular choices in the API Tools & Protocols space.
GitHub Stars
OpenAPI 31.3K
vs
Zod 44.2K
Downloads/wk
OpenAPI 0
vs
Zod 0
Contributors
OpenAPI 256
vs
Zod 592
Bundle Size
OpenAPI 138.9 KB
vs
Zod 88.9 KB
Detailed Comparison
Side-by-side metrics from GitHub and npm
Metric
OpenAPI
Zod
GitHub Stars
31.3K
44.2K
Weekly Downloads
0
0
Forks
9.2K
2.3K
Open Issues
81
93
Contributors
256
592
Bundle Size (gzip)
138.9 KB
88.9 KB
Dependencies
6
0
Latest Version
7.13.0
4.6.7
Last Commit
Oct 15, 2026
Oct 18, 2026
License
Apache-2.0
MIT
First Published
Oct 17, 2020
Mar 7, 2020
Feature Comparison
Framework capabilities at a glance
Feature
OpenAPI
Zod
Typescript
Code Gen
Type Safe
Streaming
Validation
Caching
Frequently Asked Questions
Common questions about OpenAPI vs Zod
Is OpenAPI better than Zod?
It depends on your use case. OpenAPI is standard specification for describing restful apis, while Zod is typescript-first schema validation with static type inference. Compare the stats and features above to decide which fits your needs.
Is OpenAPI still maintained in 2026?
Yes, OpenAPI was last updated on October 15, 2026 and has 256 contributors.
Can I migrate from OpenAPI to Zod?
Migration complexity depends on how deeply OpenAPI is integrated into your project. Both tools serve similar purposes in the API Tools & Protocols space, so migration is generally feasible with proper planning.
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