JSONToTable

How to Convert JSX to TSX - Step by Step Guide

Step 1

Input Your JSX Code

Let's get your JSX into the converter! Whether you're migrating a single component or planning a full TypeScript migration, you have several convenient options:

•
Paste directly: Copy your React JavaScript component and paste it into the left editor
•
Upload a file: Click "Upload" to select a .jsx or .js file from your computer
•
Try the sample: Click "Sample" to load an example and see how the converter works

Example: JSX Component Input

Here's a typical JSX component without type annotations:

function Button({ label, onClick }) {
  return (
    <button onClick={onClick}>
      {label}
    </button>
  );
}
Step 2

Automatic Type Generation

The conversion happens instantly! As soon as you input JSX, the converter automatically:

•
Generates prop interfaces: Creates TypeScript interfaces for all component props
•
Infers types: Smart type inference based on prop names and usage patterns
•
Types event handlers: Adds proper React event types for onClick, onChange, etc.

Example: TSX Component with Types

The same component, now with TypeScript types:

interface ButtonProps {
  label: string;
  onClick: (data?: any) => void;
}

function Button({ label, onClick }: ButtonProps) {
  return (
    <button onClick={onClick}>
      {label}
    </button>
  );
}
Step 3

Review Generated Types

Check the converted TypeScript code in the right editor. The converter provides intelligent features:

•
Type inference: Automatically detects types from prop names (age → number, onClick → function)
•
Hook typing: Adds generic types to useState, useEffect, and other React hooks
•
Event types: Properly types onChange, onClick events with React.ChangeEvent and React.MouseEvent
Step 4

Export Your TSX Component

Get your TypeScript React component ready for use! Multiple export options for seamless integration:

•
Copy to clipboard: One-click copying to paste directly into your TypeScript project
•
Download as .tsx: Save as a TypeScript React file ready for your codebase
•
Stats display: See how many interfaces were generated and lines converted

Frequently Asked Questions

Why convert JSX to TSX?

TypeScript provides type safety, better IDE support, improved refactoring capabilities, and catches errors at compile-time rather than runtime. Converting JSX to TSX helps you leverage these benefits in your React applications while maintaining type correctness throughout your codebase.

Is the conversion 100% accurate?

The converter uses intelligent type inference based on prop names, initial values, and common patterns. While it provides a solid starting point, you may need to refine some types manually, especially for complex scenarios like union types, generics, or custom type definitions. Always review the generated code before using it in production.

What React patterns are supported?

The converter handles functional components (both function declarations and arrow functions), React hooks (useState, useEffect, etc.), event handlers, props destructuring, and common TypeScript patterns. It works best with modern React code using hooks rather than class components.

Can I use this for large codebases?

Yes! This tool is great for migrating individual components or entire codebases from JavaScript to TypeScript. Convert each component file, review the generated types, and gradually migrate your project. For very large projects, consider using it alongside TypeScript's incremental adoption features.

How are types inferred?

The converter uses naming conventions and patterns to infer types. Props starting with "on" are typed as functions, props containing "count" or "age" are typed as numbers, boolean-like names get boolean types, and arrays are inferred from names like "items" or "list". You can always adjust these types after conversion for more precision.

Is my code secure when using this tool?

Yes, absolutely! All JSX to TSX conversion happens entirely in your browser using client-side JavaScript. Your code is never sent to any server or stored anywhere. This ensures complete privacy and security for your source code.

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