Convert JSON to TypeScript Interfaces

Data-Converter.app is a free, 100% client-side tool to convert JSON to TS instantly without uploading data to a server.

Instantly convert your JSON objects to highly accurate TypeScript interfaces. Runs purely locally in your browser.

Input (JSON)
Verified Local Processing
// Output will appear here

Privacy Shield: Processing happens 100% in your browser. No data is sent to our servers.

How it Works

1

Paste JSON

Input your raw data directly into the editor.

2

Auto-Detection

We analyze and validate your data instantly.

3

Instant Conversion

Transforms to TS immediately.

4

Copy & Use

Copy the results to your clipboard with one click.

Frequently Asked Questions

Is my data secure?

Yes, this tool runs 100% in your browser without sending data to any server.

How are nested objects handled?

Our algorithm correctly flattens and references complex nested json structures.