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JSON to TypeScript

Generate TypeScript interfaces from JSON data

Root name:
JSON Input
TypeScript Output

🔒 This tool runs in your browser only. No input data is sent to any server.

About JSON to TypeScript

JSON to TypeScript Converter generates TypeScript interfaces and type definitions from JSON data. Paste a JSON object and get correctly typed interfaces with nested type support. Saves time when creating type definitions for API responses or configuration objects.

How to Use

  1. Paste a JSON object in the input area or click Sample for an example.
  2. TypeScript interfaces are generated automatically.
  3. Review and adjust the generated type names if needed.
  4. Copy the TypeScript code for your project.

Key Features

  • Generate TypeScript interfaces from any JSON structure
  • Handle nested objects, arrays, and mixed types
  • Automatic type inference for numbers, strings, booleans, and nulls
  • Ready-to-use TypeScript code with proper formatting