GraphQL To Java Converter
Generate Java POJO classes from GraphQL schema SDL instantly in your browser with GraphQL Code Generator.
Convert GraphQL Schema to Java Classes
Java backends that expose GraphQL APIs often need typed model classes matching the schema. Writing POJOs by hand is slow and error-prone when fields evolve. This converter generates Java classes from GraphQL SDL using GraphQL Code Generator in your browser.
What this tool does
Paste a GraphQL schema and get Java class definitions for object types, input types, enums, and interfaces. Output updates in real time as you edit the schema. Copy or download the generated file for use in Spring GraphQL, DGS, or other Java GraphQL stacks.
Related tools
Need resolver method stubs instead of model classes? Try the GraphQL to Resolvers Signature generator. For Flow or TypeScript types, use the GraphQL to Flow Converter or GraphQL to Components Generator.
Frequently Asked Questions
Do I need to provide GraphQL operations?
No. This tool converts schema SDL only. It generates Java types for all defined schema types without requiring queries or mutations.
Which Java GraphQL frameworks work with the output?
Generated classes follow common GraphQL Code Generator Java plugin conventions and work well as DTOs for Netflix DGS, Spring for GraphQL, and similar Java GraphQL server implementations.
Are nullable fields handled correctly?
Yes. The generator respects GraphQL nullability. Required fields use non-null types while optional fields map to nullable Java references or wrapper types as defined by the plugin.
Is my schema sent to a server?
No. Conversion runs entirely in your browser. Your GraphQL schema never leaves your device.
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