Is this Swagger → Postman tool private?

Yes. Parsing, validation, and collection generation happen locally in your browser. No spec data is uploaded or stored on any server.

What spec versions are supported?

OpenAPI 3.0/3.1 and Swagger (OpenAPI) 2.0.

No. This generates requests, folders, parameters, and best-effort example bodies. Tests and pre-request scripts are not auto-generated in v1.

100% client-side. Your spec never leaves your browser.

🔐 Your spec stays in your browser

Input

Paste JSON/YAML or upload a file. We’ll validate it and generate a Postman Collection v2.1.

Input size: 0.0 KB

Supports OpenAPI 3.0/3.1 and Swagger 2.0 (JSON or YAML).

Encode or decode URLs and query string values with full Unicode and special character support.

Format, validate, and minify JSON with syntax highlighting and exact error line/column numbers.

Test, debug, and learn regular expressions with real-time highlighting and detailed match breakdown.

Decode JWT header and payload locally, validate exp/nbf, and optionally verify HS256 signatures.