Free Quicktype Code Generator (Data to Type-Safe Code)

Auto-generate typed code (TypeScript, Python, Go, Java, etc.) from JSON/API responses instantly.

How to use Quicktype Code Generator

  • Paste your JSON or API response in the input area
  • Select your target programming language
  • Enter a custom type name (optional)
  • The code will be generated automatically
  • Copy or download the generated code

JSON Input

Generated Code Generating...

// Generated code will appear here...
  1. 1 Input Source: Paste your JSON data, JSON Schema, or GraphQL query.
  2. 2 Select Language: Choose the desired output language (e.g., TypeScript, Go, Dart, Rust).
  3. 3 Generate Models: The tool instantly generates strongly-typed data models with necessary serialization/deserialization code. Generate typed code from JSON now!

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