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DeWelopeTools

JSON to TypeScript

Generate TypeScript interfaces from JSON data. Handles nested objects, arrays, and multiple types automatically.

How to Use JSON to TypeScript

The JSON to TypeScript Converter is a free online tool that automatically generates TypeScript interfaces from JSON data. Paste any JSON object or array and get properly typed TypeScript interfaces with nested type definitions. Customize the root interface name and get production-ready type definitions. Whether you are building REST API clients, typing API responses, converting JSON schemas to TypeScript, bootstrapping new projects, or need quick type definitions from sample data, this tool generates accurate interfaces instantly.

Step-by-Step Instructions

  1. Set the root interface name (optional, defaults to Root)
  2. Paste your JSON data into the input area
  3. Click Generate TypeScript to create interfaces
  4. Copy the generated TypeScript interfaces

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