Postman to OpenAPI/Swagger Converter
Convert Postman Collection v2.1 to OpenAPI 3.0 YAML. Generate API documentation from your Postman requests.
Input
Postman JSONOutput
OpenAPI YAMLYour converted output will appear here
How to Use Postman to OpenAPI/Swagger Converter
Paste your Postman Collection JSON. The converter extracts all requests, maps them to OpenAPI paths, converts auth to security schemes, and outputs valid YAML.
🔒 Privacy First: This tool runs entirely in your browser. Your data never leaves your computer.
Common Use Cases
- Generate API documentation from Postman
- Create Swagger UI from existing APIs
- Share API specs with partners
- Import to API gateways
Postman to OpenAPI/Swagger Converter FAQ
Click the "..." next to your collection, select "Export", choose "Collection v2.1", and save the JSON file.
Endpoints, HTTP methods, path/query parameters, request bodies (JSON, form-data), auth schemes (Bearer, Basic, API Key), and response examples.
Yes, it generates valid OpenAPI 3.0.3 spec that can be imported into Swagger UI, Redoc, or other API documentation tools.