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JSON to TypeScript Converter

Generate TypeScript interfaces from JSON.

About the JSON to TypeScript Converter

This tool is a major time-saver for TypeScript developers. It automatically generates TypeScript interfaces from a JSON object. Instead of manually writing out type definitions for your API responses or data structures, you can simply paste the JSON and instantly get a corresponding interface, complete with inferred types for strings, numbers, booleans, arrays, and nested objects.

How to Use This Tool

  1. Paste JSON: In the left panel, paste a sample of the JSON data you want to create an interface for.
  2. Live Generation: The tool will instantly parse the JSON and generate the equivalent TypeScript interface in the right panel.
  3. Check for Errors: If your JSON is invalid, an error will be displayed.
  4. Copy and Use: Use the copy button on the output box to copy the generated interface and paste it into your `.ts` or `.tsx` file.