How to use OpenAPI Schema Validator
- Drop your text into the field at the top of OpenAPI Schema Validator.
- Use the Paste an OpenAPI / Swagger document (JSON) setting to control the result.
- The result is computed live in your browser as you edit the input.
- Finish by choosing Copy to take the output with you.
About this tool
OpenAPI Schema Validator is a static, client-side tool with no backend. OpenAPI Schema Validator builds structured-data markup in your browser from the fields you fill in.
The output follows schema.org shapes so search engines can read it. It behaves the same on desktop and mobile, with nothing stored remotely.
Frequently asked questions
What does OpenAPI Schema Validator do?
Use OpenAPI Schema Validator to validate your input without installing anything using the Paste an OpenAPI / Swagger document (JSON) control; everything happens client-side.
Do I need an account for OpenAPI Schema Validator?
No — OpenAPI Schema Validator needs no account, sign-up or installation.
Where is my data processed by OpenAPI Schema Validator?
Entirely in your browser — OpenAPI Schema Validator keeps your data on your own machine and sends nothing anywhere.
Does OpenAPI Schema Validator validate against schema.org types?
OpenAPI Schema Validator builds and checks the structured-data markup in your browser so you can paste it straight into your page.
Does OpenAPI Schema Validator work offline?
Once the page has loaded, OpenAPI Schema Validator keeps working with no network connection.