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JSON to GraphQL Type Generator — Infer Types From a Sample

Paste JSON sample data to infer matching GraphQL type definitions — a starting point for a schema when modeling data you already have in JSON form, rather than writing GraphQL SDL types from scratch.

How to use JSON to GraphQL

1. Paste your JSON sample.
2. Review the inferred GraphQL type definitions.
3. Refine field nullability and add resolvers as needed.
4. Copy the schema into your GraphQL project.

Frequently asked questions

Does it generate resolvers, or just types?

It focuses on inferring the type definitions (SDL); actual resolver implementation logic still needs to be written to connect types to your real data source.

How does it handle nested objects?

Nested JSON objects generate their own GraphQL type referenced from the parent type.

Are all fields marked nullable or non-nullable correctly?

Fields present in your example default to non-null; adjust nullability manually for fields that can genuinely be absent in other cases.

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Also searched for: json to graphql type generator · infer graphql schema from json · generate graphql sdl from json sample

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