Stop writing TypeScript types manually. Paste your JSON and let AI generate perfect TypeScript interfaces with proper types, optional properties, and nested structures. Save hours of tedious type definition work.
Generate TypeScript Types →Instant TypeScript interface generation from JSON
AI infers correct types (number vs string, nullable fields)
Handles nested objects and arrays automatically
Generates type guards and validation functions
Creates Zod schemas for runtime validation
Natural language to TypeScript - describe your types in English
Paste your JSON or describe your data structure
Select output format (interface, type, Zod schema)
Generate and copy TypeScript code
Customize generated types as needed
Our AI analyzes your JSON structure and infers the most appropriate types. It detects patterns like ISO dates, UUIDs, and email addresses to assign correct types rather than just "string".
Absolutely! Paste any API response JSON and get perfectly typed interfaces. Great for typing fetch calls, axios responses, or GraphQL queries.
Yes! The AI handles deeply nested objects, arrays of objects, union types, and optional properties. It creates separate interfaces for nested structures for better code organization.