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Formatters & Code

OpenAPI / Swagger Validator

Validate OpenAPI 3 specs against the spec rules.

Runs in your browser

Redactionele opmerking

Understanding · A spec for the spec.

Dit uitgebreide hoofdstuk is momenteel alleen in het Engels beschikbaar. De conversietool hierboven werkt in jouw taal; de lange uitleg is nog niet vertaald.

Veelgestelde vragen

Quick answers.

Which versions of OpenAPI are supported?

The validator supports OpenAPI 3.0 and 3.1, as well as legacy Swagger 2.0 definitions in both YAML and JSON formats.

Is my API specification private?

Yes. Validation happens locally within your browser using JavaScript. Your API keys, endpoints, and schema details are never uploaded to our servers.

How do I fix validation errors?

The tool provides the specific line and column number for each error alongside a description of the rule violation. Correct these values in your editor and the validator will refresh the status.

Does this tool lint for best practices?

This tool focuses on structural validity against the official specification. For custom style guides or naming conventions, a dedicated linter like Spectral is typically required.

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