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JSON & Schemas · 100% Client-Side & Private

JSON to GraphQL Type Definition Converter — Free Online SDL Generator

Convert JSON payloads into GraphQL Object Types and Input Types with ID, Int, Float, String, and Boolean inference.

json
6 lines
graphql
14 lines
Real-time instant in-browser transformation (Zero data leaves your device)
Target File:json-to-graphql-output.gql

How the JSON to GraphQL Schema Works

Transforms JSON into GraphQL Schema Definition Language (SDL) types.

Why Developers Use This Conversion

Instantly draft GraphQL schemas when prototyping Apollo, Yoga, or Relay APIs.

Before & After Transformation Example

INPUT (JSON)
{"id": "1", "score": 9.5}
OUTPUT (GRAPHQL)
type GeneratedRecord {
  id: ID!
  score: Float
}

Frequently Asked Questions

Does it generate input types?
Yes, it generates both the query Object type and the mutation Input type simultaneously.

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