cURL to OpenAPI 3.0 (Swagger)

Generate perfectly structured OpenAPI JSON specifications instantly from raw cURL commands.

Paste cURL Command
Invalid cURL command.
OpenAPI JSON Output

Why Use This OpenAPI Generator?

Instant Documentation

Stop writing tedious boilerplate by hand. We generate perfectly structured OpenAPI 3.0 JSON specifications that are ready to be pasted directly into Swagger UI.

Smart Parameter Extraction

Our engine automatically parses URL query strings (?key=value) and custom headers, injecting them directly into the OpenAPI parameters array.

Deep Payload Schema Parsing

If your cURL contains a JSON payload, we dynamically parse it and automatically generate the requestBody properties and types (strings, booleans, arrays) for you.

Auth Header Mapping

Instead of losing authentication data, we automatically map -u Basic Auth and Bearer tokens into the header parameters so your generated endpoints remain testable.

Safe Copy API Redaction

Never accidentally expose a production API key in your public documentation. Our Safe Copy feature automatically masks sensitive tokens before exporting the JSON.

100% Client-Side Privacy

Your commands are parsed entirely in your browser. Your proprietary backend endpoints, webhooks, and schemas are never logged or sent to any server.