PropTypes to TypeScript Converter
Convert React PropTypes to TypeScript interfaces instantly. AI-powered smart type inference with event handler detection and defaultProps merging.
How It Works
Paste Your PropTypes
Paste any React component with PropTypes definitions. The editor supports full JSX syntax highlighting.
Click Convert
Our AI analyzes your PropTypes, infers event handler types, and generates precise TypeScript interfaces with smart type mapping.
Copy & Use
Copy the generated TypeScript interface or the full refactored component. Drop it into your project to complete the migration.
Why Migrate to TypeScript
Accurate Type Mapping
Every PropTypes validator maps to the correct TypeScript type shapes become interfaces, oneOf becomes union literals, arrayOf becomes typed arrays.
Smart Event Inference
AI detects event handler patterns like onClick, onChange, and onSubmit, and generates proper React event types instead of generic functions.
defaultProps Handling
Automatically merges defaultProps into optional interface fields or keeps them separate your choice.
Production-Ready Output
Generated interfaces include proper nesting, React.ReactNode for render props, and compile without TypeScript errors.
FAQ
Why migrate from PropTypes to TypeScript?
PropTypes only validate at runtime in development mode. TypeScript catches type errors at compile time, provides IDE autocomplete, and the type information is available across your entire codebase not just within one component.
How does the AI improve over basic conversion?
The AI infers specific event handler types from naming conventions (e.g., onClick becomes React.MouseEvent), detects custom validators, and generates JSDoc comments for complex types. The AST fallback uses generic function types.
Does it handle PropTypes.shape and nested objects?
Yes. PropTypes.shape({...}) becomes an inline object type or a separate named interface when the shape has 3 or more fields. Nested shapes are fully supported and recursively converted.
What about PropTypes.oneOf and enum types?
PropTypes.oneOf(['admin', 'editor', 'viewer']) becomes the union type 'admin' | 'editor' | 'viewer' preserving the exact allowed values as TypeScript literal types.
Can I convert the entire component or just the interface?
Both. Use "Interface only" mode to get just the Props interface, or "Interface + Component" mode to get the full refactored component with typed props parameter and the PropTypes block removed.
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