Review an API change before clients find it.

Compare two OpenAPI 3.0 or 3.1 JSON files. Get breaking, potential and documentation changes with a release-ready evidence pack.

JSON only 4 MiB per file External refs stay unresolved

Choose the two contracts

The before file is the released contract. The after file is the proposed contract.

Choose one before file and one after file.

What this review can and cannot prove
  • Internal JSON Pointer references are resolved with bounded cycle detection.
  • External references are listed but never fetched.
  • Potential and breaking labels are release-review prompts, not runtime proof.
  • YAML is not accepted in this version because a YAML parser is not bundled.

Selected OpenAPI specifications are processed in this page and are not sent to a WebRynx application endpoint. External references are listed but not fetched.

No comparison yet Choose two JSON files or load the bounded sample.