OpenAPI Viewer
OpenAPI Viewer
Paste any OpenAPI 3.x or Swagger 2.x spec in JSON or YAML; browse endpoints grouped by tag, view parameters, request bodies, and response codes.
Paste an OpenAPI 3.x spec (JSON or YAML) to visualize it.
Spec Diff
Paste or drop an OpenAPI 3.x JSON or YAML spec to browse endpoints, schemas, and parameters.
OpenAPI Viewer
Paste any OpenAPI 3.x or Swagger 2.x spec in JSON or YAML; browse endpoints grouped by tag, view parameters, request bodies, and response codes.
Common uses
- Browse all endpoints in a Swagger 2 spec
- Inspect request body and response schema for an endpoint
Frequently asked questions
Can I use OpenAPI Viewer to browse all endpoints in a Swagger 2 spec?
Yes. OpenAPI Viewer can browse all endpoints in a Swagger 2 spec, directly in your browser.
Can I use OpenAPI Viewer to inspect request body and response schema for an endpoint?
Yes. OpenAPI Viewer can inspect request body and response schema for an endpoint, directly in your browser.
Is my data uploaded to a server?
No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.