JSON to TypeScript

Convert JSON to TypeScript interfaces and types online for free. Instantly generate TypeScript type definitions from any JSON object. Browser-based — no data sent to servers.

Your data never leaves your browser

JSON to Go Struct

Generate Go structs from JSON

JSON to Python

Generate Python dataclasses from JSON

JSON Formatter & Beautifier

Format and validate JSON with syntax highlighting online

Frequently Asked Questions

What TypeScript output is generated?

The tool generates TypeScript interface declarations with proper types for all JSON fields, including nested objects and arrays.