JSON to TypeScript

About JSON to TypeScript

How to use JSON to TypeScript

1. Paste the JSON data you want to generate TypeScript type definitions for into the input area. You can use API responses or configuration file contents directly.
2. Use the options bar to set the root type name (default is Root), output format (interface or type), export keyword toggle, and optional properties setting.
3. TypeScript type definitions are generated in real-time on the right panel as you type. The number of generated types is also displayed.
4. Click the copy button to copy the generated type definitions to your clipboard and paste them directly into your .ts files.

Benefits of JSON to TypeScript

• Simply paste API response JSON to auto-generate complete type definitions including nested objects in seconds, dramatically reducing the time spent on manual type writing.
• Smart type inference features like mixed array union types and automatic property name quoting help prevent TypeScript compilation errors and support type-safe code development.
• All processing runs entirely in the browser, so you can safely convert JSON containing production API responses or sensitive data without any risk of information leakage.