JSON CATEGORY

JSON to TypeScript

Stop writing interfaces manually. Paste your API response and get type-safe TypeScript definitions for your frontend in seconds.

JSON Input
TypeScript Output
// Click Generate to see result

Why Use JSON to TS?

Type Safety

Avoid "any" and ensure your data structure is consistent across the app.

Auto-Completion

Get full IDE intellisense when accessing deep property chains in complex objects.

API Documentation

Quickly document your backend API contract for frontend contributors.

FAQ

Simply paste your valid JSON into the left panel and click 'Generate Interface'. The tool will automatically detect types (strings, numbers, booleans, arrays) and create an exportable TypeScript interface.
Yes! Our algorithm recursively traverses your JSON and generates mappings for nested properties. For extremely deep structures, it will use 'Record<string, any>' for better performance.
Never. All processing happens entirely within your browser's RAM. Your data stays on your machine.