JSON Tool
JSON to TypeScript
Generate TypeScript interfaces from JSON data. Create type-safe code for your API responses.
Interface Name
JSON InputInvalid
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Unexpected end of JSON input
TypeScript Output
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About JSON to TypeScript
This tool automatically generates TypeScript interfaces from your JSON data. Its perfect for creating type definitions for API responses, configuration files, or any JSON data structure.
Benefits of TypeScript Types
- Type Safety: Catch errors at compile time instead of runtime
- IntelliSense: Better autocomplete in your IDE
- Documentation: Types serve as inline documentation
- Refactoring: Safer refactoring with type checking
How It Works
- Analyzes the JSON structure recursively
- Infers TypeScript types from values
- Creates nested interfaces for objects
- Handles arrays with consistent item types
Type Inference Rules
- JSON strings become
string - JSON numbers become
number - JSON booleans become
boolean - JSON null becomes
null - JSON objects become interfaces
- JSON arrays become
Type[]