React Formatter
Format, beautify, and validate your React/JSX code with customizable options. Maintain consistent code style, catch common issues, and optimize for production.
Format code with proper indentation and spacing
Formatted code will appear here...
Understanding React Code Formatting
React components combine JavaScript with JSX syntax, making proper formatting essential for readability and maintainability. A good React formatter understands the unique requirements of JSX while maintaining clean JavaScript structure.
Why Format React Code?
- Readability: Properly indented JSX makes component structure clear
- Consistency: Team-wide style guide enforcement
- Error Prevention: Catch mismatched tags and hook rule violations
- Code Review: Clean diffs and easier review process
React Best Practices Enforced
- Component names in PascalCase
- Proper hook ordering and rules
- Consistent prop formatting
- Import statement organization
- JSX attribute formatting
- Self-closing tag consistency
Key Features
- JSX syntax preservation
- Hook rules validation
- Import sorting
- Configurable quotes
- Custom indentation
Formatting Statistics
| JSX Elements | Preserves structure |
|---|---|
| React Hooks | 10+ hook patterns |
| Component Types | Functional, Class |
| File Formats | .js, .jsx, .tsx |
| Style Rules | 15+ configurable |
Before & After Examples
Before (Messy Code)
import React,{useState}from'react';
const MyComponent=()=>{
const[count,setCount]=useState(0);
return(<div><h1>Count:{count}</h1>
<button onClick={()=>setCount(count+1)}>Increment</button></div>);
};
export default MyComponent;After (Formatted)
import React, { useState } from 'react';
const MyComponent = () => {
const [count, setCount] = useState(0);
return (
<div>
<h1>Count: {count}</h1>
<button onClick={() => setCount(count + 1)}>
Increment
</button>
</div>
);
};
export default MyComponent;React Code Quality Checks
Syntax Validation
- ✓ JSX tag matching and nesting
- ✓ Expression bracket balance
- ✓ Attribute value quotes
- ✓ Self-closing tag format
React Rules
- ✓ Hook call ordering
- ✓ Hook naming conventions
- ✓ Component naming (PascalCase)
- ✓ Prop spreading patterns
Frequently Asked Questions
While Prettier is a general code formatter, this React-specific tool provides additional validation for React patterns like hook rules, component naming conventions, and JSX-specific formatting. It also includes minification and validation modes specifically designed for React components.
Yes, the formatter fully supports TSX (TypeScript + JSX). It preserves type annotations and interfaces while formatting the JSX structure. The validation will also check for proper TypeScript React patterns when present.
Formatting: Adds proper indentation, line breaks, and spacing for human readability.
Minifying: Removes all unnecessary whitespace, comments, and compresses the code to reduce file size for production deployment.
Minifying: Removes all unnecessary whitespace, comments, and compresses the code to reduce file size for production deployment.
The validator checks the Rules of Hooks: hooks must be called at the top level (not inside conditions, loops, or nested functions) and must maintain consistent ordering between renders. It also verifies that custom hooks follow the 'use' naming convention.
Yes, the formatter offers customizable options for indentation (spaces/tabs), quote styles (separate for JS and JSX), semicolon usage, bracket spacing, and arrow function parentheses. These can be adjusted to match your team's specific coding conventions.
Related Developer Tools
All React code formatting is performed client-side in your browser. Your code never leaves your device.
AI-Powered Formatting: Smart detection of React patterns and JSX structure for optimal formatting.
