How to use GraphQL Schema Validator
- Start by adding the text you want to validate into GraphQL Schema Validator.
- Set Paste a GraphQL schema (SDL) so the output fits your use case.
- Watch the output update instantly while you adjust the text.
- Finish by choosing Copy to take the output with you.
About this tool
GraphQL Schema Validator runs entirely in your browser. GraphQL 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. Nothing you enter is uploaded, and it keeps working offline once the page has loaded.
Frequently asked questions
How do I use GraphQL Schema Validator?
GraphQL Schema Validator runs entirely on your device: add your input using the Paste a GraphQL schema (SDL) control, and it validates it locally in real time.
Does GraphQL Schema Validator cost anything?
No — GraphQL Schema Validator is completely free, with no sign-up and no hidden limits.
Does GraphQL Schema Validator upload my data?
No — GraphQL Schema Validator processes everything locally in your browser, so nothing you enter is uploaded or stored.
Does GraphQL Schema Validator validate against schema.org types?
GraphQL Schema Validator builds and checks the structured-data markup in your browser so you can paste it straight into your page.
Does GraphQL Schema Validator work offline?
Once the page has loaded, GraphQL Schema Validator keeps working with no network connection.