JSON to GraphQL Schema & Query Generator
Convert raw JSON payloads into typed GraphQL SDL definitions and Query schemas.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. No data is ever transmitted across the network.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
How to Use JSON to GraphQL Schema & Query Generator
Paste your raw API JSON response or mock data object.
Specify the root GraphQL type name and toggle Non-Null (!) enforcement.
Copy the generated GraphQL Schema Definition Language or download it as a .graphql file.
Frequently Asked Questions
How are nested objects handled?
Nested JSON objects are automatically extracted into modular GraphQL sub-types with proper parent-child references.
Can I download the generated GraphQL schema?
Yes, you can copy the SDL with one click or download it directly as a .graphql file.
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