GhostKitghostkit.dev

JSON to TypeScript Interfaces

Developer Utilities

Instantly convert complex nested JSON objects and API payloads into clean, production-ready TypeScript type definitions and interfaces.

100% Client-Side

Zero-Knowledge Privacy Guarantee

This JSON to TypeScript Interfaces executes 100% locally in your browser’s JavaScript memory using client-side Web APIs. No inputs, keys, tokens, files, or outputs are ever uploaded to any server or logged in any database.

Key Features & Capabilities

  • Generates exported TypeScript interfaces for nested objects
  • Detects optional properties and primitive types (string, number, boolean, array)
  • Configurable root interface name
  • 1-click copy for your TypeScript codebase

How to Use This Tool

  1. 1Paste your API JSON response or mock data into the editor.
  2. 2Specify the Root Interface Name (default: RootObject).
  3. 3Copy the generated TypeScript interfaces into your code.

Frequently Asked Questions (FAQ)

Yes! It analyzes array items to generate typed arrays such as UserItem[] or custom interface references.

More in Developer Utilities

Explore category