Free to list, always.No paid rankings. Every recommendation explains its trade-offs.
OpenSourceChoice

Open-source projects tagged “Openapi”.

Inspect repositories, licenses, activity, and alternatives across the Openapi ecosystem.

3 projects connectedTag matches come from repository topics and catalog metadata.

Scalar is an open-source API platform:                                       🌐 Modern REST API Client                                        📖 Beautiful API References                                        ✨ 1st-Class

FreePricingFree and open sourceFree15.6K89626 hours ago

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

FreePricingFree and open sourceFree8.3K46138 hours ago
MIT

ambitious docs framework for everyone

FreePricingFree and open sourceFree1129Jul 11, 2026
Showing 3 of 3