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TOOL

API Spec Validate

Check an OpenAPI/Swagger spec for the presence of required top-level fields: an openapi/swagger version, paths and info. Values are not inspected — a non-object paths value still passes, so treat this as a field-presence check, not a structural validation.

Try an example:
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How to use

  1. Type or paste your input into the input box.
  2. Adjust any parameters if needed.
  3. Copy or download the result.

Frequently asked questions

Is my data uploaded anywhere?
No. All processing happens locally in your browser with no server round-trip.
Does this tool work offline?
Yes. Once the page loads, the tool runs entirely client-side and needs no network connection.

Tutorials using this tool

How to Build a Secure API Gateway
Design a secure API gateway that handles authentication, rate limiting, request validation, and threat protection for backend services.
TUTORIAL

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