OpenAPI Tools
5 free OpenAPI tools — all run locally in your browser.
OpenAPI Viewer
Browse an OpenAPI/Swagger document as a readable, searchable list of endpoints.
OpenAPI Validator
Check an OpenAPI/Swagger document for broken refs, duplicate IDs and other spec violations.
OpenAPI Diff
Compare two OpenAPI/Swagger versions and flag breaking vs. non-breaking changes.
OpenAPI to Postman
Convert an OpenAPI/Swagger document into a downloadable Postman collection.
OpenAPI Mock Generator
Generate realistic mock responses from an OpenAPI/Swagger document, exportable as MSW handlers.