Developer ToolsFree Tool

GraphQL to TypeScript

Provided byDevBoltdevbolt.dev

Converts GraphQL SDL schemas to TypeScript interfaces, types, enums, and operations.

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About this tool

What GraphQL to TypeScript does

The GraphQL to TypeScript Converter on DevBolt transforms GraphQL Schema Definition Language (SDL) into ready-to-use TypeScript interfaces, types, enums, and operation definitions. Users paste their SDL schema and receive output that includes type safety for fields, lists, nullable markers, and custom scalars, which can be downloaded as a .ts file or copied directly. The tool processes the schema structure automatically, mapping fields and structures to generate declarations that align with a TypeScript environment, helping developers maintain consistency between their GraphQL backend and TypeScript frontend or backend code.

Step by step

How to use the DevBolt GraphQL to TypeScript

  1. 1

    Paste your GraphQL SDL schema into the input field

  2. 2

    Click the Convert button to generate TypeScript interfaces, types, enums, and operations

  3. 3

    Review the generated output, which includes type annotations for non-nullable, nullable, and list fields

  4. 4

    Download the result as a .ts file or copy the code to your clipboard

Is it right for you

Best for

Developers integrating GraphQL services into TypeScript projects who need automatic type generation for interfaces, enums, and operations to ensure type safety and autocompletion.

Limitations

  • Everything runs in the browser with no server-side processing
  • No unit switching or localization options for generated types
  • Results are estimates based on SDL input and may require manual adjustments for complex schemas
Questions

GraphQL to TypeScript FAQ

Can I convert a large GraphQL schema without losing type accuracy?
The tool processes SDL input in the browser and handles non-null/nullable types, list types, field arguments, and 15+ custom scalar mappings. Very large schemas may require breaking into smaller sections for optimal results.
What types of GraphQL elements does the converter support?
It supports interfaces, types, enums, unions, operation types, non-null/nullable markers, list types, field arguments, implements, and custom scalar mappings.
Is the generated TypeScript code ready to use immediately?
The output provides interfaces, types, and enums that can be copied or downloaded as a .ts file. Users may need to adjust imports or integrate the types into their existing TypeScript project structure.
Does the tool preserve field arguments and enum values from the original schema?
Yes, the converter maps field arguments and enum definitions from the SDL to the generated TypeScript interfaces and enums, maintaining the structure of the original schema.
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