JSON to TypeScript

Generate TypeScript interfaces from JSON

JSON Input
TypeScript Output

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JSON to TypeScript Interface Generator

Convert JSON objects to TypeScript interfaces automatically. Perfect for API responses, configuration files, and data structures. Handles nested objects, arrays, and infers correct types (string, number, boolean, etc.).

FAQ

How does type inference work?

Analyzes each value: strings → string, numbers → number, booleans → boolean, arrays → Type[], objects → nested interfaces.

Can it handle nested objects?

Yes! Creates separate interfaces for nested structures automatically.