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JSON to GraphQL Schema

Convert JSON to GraphQL schema definition with auto-detect types, nested types and arrays support

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About This Tool

The JSON to GraphQL Schema converter analyzes your JSON data and automatically generates corresponding GraphQL type definitions. It supports nested objects, arrays, optional Query and Mutation type generation, and real-time conversion — all running locally in your browser.

Key Features

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Use Cases

json graphql schema api types

Frequently Asked Questions

What is the JSON to GraphQL Schema converter?

The JSON to GraphQL Schema converter is an online tool that generates GraphQL schemas from JSON data automatically. It analyzes JSON structure and produces corresponding GraphQL type definitions, queries, and mutations with proper scalar type mapping.

Does it support nested objects and arrays?

Yes, the tool fully supports nested JSON objects and arrays. It recursively extracts nested types and generates separate GraphQL type definitions for each nested structure, including array item types.

Can I generate Query and Mutation types?

Yes, you can optionally generate Query and Mutation types using the toggle options. The Query type includes root, roots, and rootById queries, while the Mutation type includes create, update, and delete operations with an Input type.

Is my data safe when using this tool?

Absolutely. All processing happens locally in your browser. No data is uploaded to any server, ensuring your information remains completely private and secure.

Can I use this tool on mobile devices?

Yes. The tool is fully responsive and works on all devices including smartphones, tablets, and desktop computers. The editor and output panels stack vertically on smaller screens.