Is Json To Typescript free to use?

Yes, Json To Typescript is completely free with no hidden fees or usage limits. Pro features are available for power users.

Absolutely. All processing happens locally in your browser. Your files never leave your device.

Do I need to install software?

No installation required. Works directly in your web browser on any device.

JSON to TypeScript

Generate TypeScript interfaces from JSON data

Paste JSON and instantly generate clean TypeScript interfaces and types. Handles nested objects, arrays, optional fields, and union types. Free, private, no signup required.

Root interface name

Make all fields optional

Paste your JSON here

Generated TypeScript

Pro Features

Generate runtime type guards PRO Generate Zod schemas PRO

Invalid JSON detected

Check for missing commas, quotes, or brackets.

Export files, generate runtime validators, and Zod schemas

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Help & Guides

How to Use This Tool FAQ