JSON to TypeScript

Convert JSON objects to clean TypeScript interface definitions. Fast, free, and fully client-side.

Input source

Result / Output

How the JSON to TypeScript Works

Generates TypeScript interface and type definitions from JSON data, inferring nested interfaces and optional fields.

Usage Example

Paste API JSON to generate TypeScript interfaces for frontend and backend code.

Frequently Asked Questions

Does it create separate interfaces for nested objects?

Yes, nested objects are extracted as standalone reusable TypeScript interfaces.

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See all JSON tools.