Generate typed models from JSON in seconds.

JSON to Model Converter

Convert JSON objects into strongly typed models for multiple programming languages.

Multi-language output

TypeScript, Kotlin, Dart, Python, Go, Java, Swift, C#, Rust, and Zod.

No backend needed

Everything runs directly in your browser.

Copy and download

Export generated models with one click.

JSON to Model Converter

Set your root class name, paste JSON, then choose a language tab to copy or download.

Class Name

JSON Input

Generated Model

export interface RootModel {
  id: number;
  name: string;
  active: boolean;
  email: string;
}

How to convert JSON to model classes

Paste any valid JSON object, choose a target language, and this JSON to model converter generates strongly typed class or struct definitions instantly. It is useful for API response modeling, DTO generation, and reducing manual typing errors during development.

Supported languages

Generate models for TypeScript interfaces, Kotlin data classes, Dart classes, Python classes, Go structs, Java classes, Swift structs, C# classes, Rust structs, and Zod schemas.

Works with nested JSON

Handles nested objects, arrays, and mixed structures to produce reusable model types with consistent naming.

Private by design

The JSON to code conversion runs in your browser, so your payloads stay local while you copy or download results.