JSON to TypeScript - Free Online Tool | PivaBox

Generate TypeScript interface definitions from JSON objects automatically

How to Use JSON to TypeScript Generator

  1. Paste a JSON object into the input area
  2. Click Convert to automatically generate TypeScript interface definitions
  3. Copy the generated interfaces for use in your TypeScript project

Frequently Asked Questions

Is JSON to TypeScript Generator free?

Yes, PivaBox JSON to TypeScript Generator is completely free. All processing is done in your browser.

Are my JSON data uploaded to a server?

No. All TypeScript interface generation is done locally in your browser. Your data never leaves your device.

How does it handle nested objects?

The generator creates separate interfaces for nested objects and arrays, with proper TypeScript typing including optional fields (marked with ?), array types (Type[]), union types for mixed values, and proper property naming. Each interface is generated with the appropriate PascalCase name based on the property structure.