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OpenAPI / Swagger Viewer

Paste an OpenAPI 3.x specification in YAML or JSON and view interactive API documentation. All processing happens entirely in your browser — your data never leaves your device.

OpenAPI Specification

What is OpenAPI / Swagger Viewer?

OpenAPI / Swagger Viewer renders interactive API documentation from OpenAPI 3.x specifications. Paste your spec in YAML or JSON format and instantly see endpoints, parameters, request bodies, and response schemas in a clean, readable layout — without sending your API spec to any server.

How to Use

  1. Paste your OpenAPI spec (YAML or JSON) into the editor
  2. Click "Parse & View" to render the documentation
  3. Click on any endpoint to expand details including parameters and responses

Use Cases

  • Quickly previewing OpenAPI specs during API development
  • Reviewing API contracts without deploying a documentation server
  • Sharing API documentation privately without exposing internal specs
  • Debugging and validating OpenAPI spec structure

Privacy & Security

All processing happens entirely in your browser. Your API specifications — which often contain internal endpoints and security details — are never sent to any server.

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