All Tools VerseJSON to GraphQL Schema
Generate a GraphQL schema from a JSON sample, with types inferred and nested objects as their own types.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Processed locally in your browser. Your JSON never leaves this tab.
How to Use JSON to GraphQL Schema
- Paste a JSON sample. A representative object works best.
- Generate the schema. GraphQL types are inferred from the values.
- Read the result. Nested objects become their own GraphQL types.
- Copy the result. Click Copy result. It all runs in your browser.
Frequently Asked Questions
How are types chosen?
Whole numbers become Int, decimals become Float, true or false becomes Boolean, and text becomes String.
How are nested objects handled?
Each nested object becomes its own named GraphQL type, referenced from the parent.
Should I review the output?
Yes. The schema is inferred from one sample, so nullability and shared types may need adjusting.
Is my data sent anywhere?
No. The generation runs entirely in your browser, so your JSON never leaves the tab.
Is it free?
Yes. Every tool here is free to use with no sign up.
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