OpenAPI Validator
Check a spec for structure errors
OpenAPI Validator — Complete Guide & Instructions
Check an OpenAPI 3.x or Swagger 2.0 document for structural correctness — required fields, path formats, operation responses — with a clear error and warning list.
How to Use OpenAPI Validator
- 1 Paste the spec (JSON or YAML).
- 2 Click Validate.
- 3 Fix the listed errors and warnings.
Key Features & Capabilities
- OpenAPI 3.x + Swagger 2.0.
- Per-operation checks.
- Errors separated from warnings.