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JSON to GraphQL Schema Generator

Infer GraphQL types, inputs, and schemas automatically from sample JSON payloads.

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How to Use JSON to GraphQL Schema Generator

  1. Paste a sample JSON payload into the editor.
  2. Specify the Root Type Name.
  3. Copy the generated GraphQL type definitions.

Frequently Asked Questions

How are nested objects handled in GraphQL?

Nested JSON objects are extracted into distinct GraphQL `type` definitions and referenced by field name automatically.

Sources & References

Primary references: RFC 8259: The JavaScript Object Notation (JSON) Data Interchange Format; TypeScript Handbook: Object Types.

Review policy: references and behavior notes are checked whenever the tool implementation changes.