DevTools VS

OpenAPI vs tRPC

Updated Jun 28, 2026

Quick Verdict

Both OpenAPI and tRPC are popular choices in the API Tools & Protocols space.

GitHub Stars
OpenAPI 31.1K
vs
tRPC 40.4K
Downloads/wk
OpenAPI 4.6M
vs
tRPC 3.8M
Contributors
OpenAPI 253
vs
tRPC 516
Bundle Size
OpenAPI N/A
vs
tRPC 5.8 KB

OpenAPI

Website

Standard specification for describing RESTful APIs

apirestspecificationdocumentation

End-to-end typesafe APIs made easy

typescriptapitype-saferpc

Detailed Comparison

Side-by-side metrics from GitHub and npm

Metric
OpenAPI
tRPC
GitHub Stars
31.1K
40.4K
Weekly Downloads
4.6M
3.8M
Forks
9.2K
1.6K
Open Issues
116
236
Contributors
253
516
Bundle Size (gzip)
N/A
5.8 KB
Dependencies
6
0
Latest Version
7.13.0
11.18.0
Last Commit
Jun 24, 2026
Jun 20, 2026
License
Apache-2.0
MIT
First Published
Oct 17, 2020
Jan 25, 2021

Download Trends

Weekly npm downloads over the past 52 weeks

Feature Comparison

Framework capabilities at a glance

Feature
OpenAPI
tRPC
Typescript
Code Gen
Type Safe
Streaming
Validation
Caching

Frequently Asked Questions

Common questions about OpenAPI vs tRPC

Is OpenAPI better than tRPC?

It depends on your use case. OpenAPI is standard specification for describing restful apis, while tRPC is end-to-end typesafe apis made easy. Compare the stats and features above to decide which fits your needs.

Is OpenAPI still maintained in 2026?

Yes, OpenAPI was last updated on June 24, 2026 and has 253 contributors.

Can I migrate from OpenAPI to tRPC?

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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