JSON to TypeScript Converter

Convert JSON objects to TypeScript interfaces or types instantly

All conversion happens in your browser. Your data never leaves your device and is not sent to any server.

Root Name:

Use TypesOptional FieldsReadonlySemicolons

JSON Input

TypeScript Output

About JSON to TypeScript Converter

JSON to TypeScript Converter automatically generates TypeScript interfaces or types from JSON objects, saving you time and reducing errors when working with API responses or data structures.

Features:

Nested Objects: Automatically creates separate interfaces for nested objects
Arrays: Detects array types and generates appropriate type definitions
Customization: Choose between interfaces/types, optional fields, readonly, and more
Real-time: Instant conversion as you type with auto-save

Use cases: API response typing, data modeling, reducing boilerplate code, ensuring type safety