Best for
- Frontend developers needing quick types for API responses
Privacy
JSON is converted to TypeScript in your browser and is not sent to our servers for type generation.
Quick tips
- Ensure the JSON is perfectly valid before pasting, as errors will prevent type generation.
How to use this tool
- Paste a valid JSON object or array.
- Provide a name for the top-level interface (e.g. UserResponse).
- The resulting TypeScript definitions appear instantly on the right.
Common questions
Does this handle nested objects?
Yes, it recursively creates interfaces for nested objects and arrays.