OpenAPI & Swagger Documentation Viewer

Convert a pasted OpenAPI or Swagger definition into rendered local API documentation for visual contract review.

Runs locally in your browser

LOCAL VIEWERSwagger UI 5.32.14OpenAPI 3.x · Swagger 2.0Endpoint execution disabled

Your definition is rendered in this browser. Remote URL imports, external HTTP $ref values, validation calls, and Try it out requests are disabled.

OpenAPI or Swagger document

Documentation preview

Paste an OpenAPI or Swagger document, then render the local documentation.

Review documentation without running an API client

This viewer is for a visual contract review. It does not make endpoint requests, persist authorization, fetch remote definitions, or resolve remote references; use the Explorer when you intentionally want to generate a request from copied API details.