⚡ Developer Tools

JSON to TypeScript Interface Generator

Transform JSON sample responses into strongly typed TypeScript interfaces with automatic type inference.

JSON Object Input:

TypeScript Interface Output:

Frequently Asked Questions

How does type inference work?

It detects primitives (string, number, boolean), nullables, and arrays automatically from your JSON keys.

Can I export the interface?

Yes, click Copy TypeScript to paste directly into your project's types.ts file.

Is my API payload secure?

All parsing is done in-browser without sending data to any external backend.