JSON to TypeScript Interface

Instantly generate TypeScript interfaces from JSON data. Accelerate your development by converting complex objects into type-safe definitions.

Root Interface Name:

Input JSON

TypeScript Interfaces

interface User {
    id: number;
    name: string;
    username: string;
    email: string;
    address: Address;
}

interface Address {
    street: string;
    suite: string;
    city: string;
    zipcode: string;
}

Why use this tool?

When working with APIs, you often get raw JSON data. Manually writing interfaces for complex, nested objects is tedious and error-prone. This tool automates the process:

✓ Deeply Nested Support
✓ Array Type Detection
✓ Professional Indentation
✓ 100% Client-Side Only

Privacy Note

All parsing and generation happen in your browser's memory. Your JSON data is never transmitted to any external server. Your code stays your code.