JSON to TypeScript
Generate TypeScript interfaces and types from JSON data.
All processing happens in your browser. Your data never leaves your device.
How to Use
- 1Paste your JSON into the input.
- 2Click "Generate TypeScript" to create interfaces.
- 3Copy the TypeScript output.
What is JSON to TypeScript?
JSON to TypeScript generates TypeScript interface definitions from JSON data. Saves time when working with API responses by automatically creating type-safe interfaces.
Key Features
- Auto-generates TypeScript interfaces
- Handles nested objects and arrays
- Infers types from values
- 100% client-side
JSON to TypeScript vs Other Tools
| Feature | JSON to TypeScript | Other Tools |
|---|---|---|
| Client-side processing | Yes | Varies |
| No signup required | Yes | Often required |
| Privacy-first (no data sent) | Yes | Rarely |
| Free & unlimited | Yes | Often limited |
| No ads interruption | Yes | Often no |
FAQ
How are nested objects handled?
Nested objects get their own interface with a name derived from the parent key.
What about arrays?
Arrays of primitives become type[]. Arrays of objects generate separate interfaces.