JSON to TypeScript: Auto-Generate Type Interfaces
Paste any JSON object and get TypeScript interfaces generated automatically. Save hours of manual type definition writing.
What It Does
The JSON to TypeScript converter analyzes JSON data and generates corresponding TypeScript interfaces with correct property types. It handles nested objects, arrays, optional fields, and union types. The output is clean, ready-to-use TypeScript code.
How to Use It
Paste a JSON object or array into the input panel. The tool analyzes the structure and generates TypeScript interfaces in the output panel. Copy the generated types directly into your TypeScript project. Adjust interface names as needed.
Tips & Tricks
Provide a JSON sample with all possible fields present for the most accurate type generation. Check generated union types when arrays contain mixed value types. Use the tool with real API responses to create accurate types for your data layer.
Use Cases
TypeScript developers generate interfaces from API response samples instead of writing them manually. Teams maintain type definitions that match their backend data models. Code reviewers verify that TypeScript types accurately reflect the JSON structures being consumed.
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Open JSON to TypeScript