React Beautifier & Formatter Online

This online React beautifier and formatter converts compact or inconsistent JSX components into consistent readable code that is easy to review and maintain. The tool runs entirely in your browser so no installation or server upload is required. Paste JSX, upload a file, or type directly in the editor, choose formatting options, then format, copy, or download the result.

Key features

  • Fast React formatter to beautify JSX directly in the browser
  • Support for JavaScript React files and plain JSX syntax
  • Configurable tab size or spaces to match project style
  • Control quote style trailing commas and semicolon preference
  • Options for wrapping JSX attributes and bracket placement for clearer diffs
  • Free and private because formatting runs locally in your browser

How to use this React beautifier and formatter

  1. Paste minified or messy React components into the left editor or upload a .jsx file
  2. Pick language mode set line length and tab size and choose quote and semicolon preferences
  3. Click Beautify React to run the formatter and preview the result instantly
  4. Copy or download the formatted JSX for commits or code review

Example 1: Minified JSX vs Beautified JSX

Minified React Code

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import React from"react";const Card=({title,items=[]})=>(<div className="card"><h3>{title}</h3><ul>{items.map((it,i)=><li key={i}>{it}</li>)}</ul></div>);export default Card;

Beautified React Code

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import React from 'react';
const Card = ({ title, items = [] }) => (
  <div className="card">
    <h3>{title}</h3>
    <ul>
      {items.map((it, i) => (
        <li key={i}>{it}</li>
      ))}
    </ul>
  </div>
);
export default Card;

Example 2: Minified JSX with hooks and handlers vs Beautified JSX

Minified JSX

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import React,{useState}from"react";export default function Counter(){const[count,setCount]=useState(0);return<div><span>{count}</span><button onClick={()=>setCount(c=>c+1)}>Inc</button></div>}

Formatted JSX

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import React, { useState } from 'react';
export default function Counter() {
  const [count, setCount] = useState(0);
  return (
    <div>
      <span>{count}</span>
      <button onClick={() => setCount((c) => c + 1)}>Inc</button>
    </div>
  );
}

Customization options

Below are the settings you can adjust to get the formatted JSX components.

OptionDefaultDescription
Line Length120Wrap lines and JSX props at this character limit
Indent Size2Spaces used per indentation level for nested JSX and JavaScript
Use TabsFalseWhen enabled indent using actual tab characters instead of spaces
SemicolonsFalseToggle to add semicolons at the end of statements to match project style
Single QuotesFalseWhen enabled use single quotes for strings and JSX attributes where valid
Trailing CommasES5Control trailing comma behavior in arrays objects and function parameters
Bracket SpacingFalseAdd spaces between object literal brackets for visual clarity
Arrow ParensAlwaysRequire parentheses around single parameter arrow functions or omit them
Line EndingAutoChoose end of line style such as LF CRLF CR or let the formatter detect automatically

Why use this React beautifier and formatter

Consistent JSX formatting makes components easier to scan and debug the components, which shortens review cycles and reduces churn in pull requests. When teams share a single style for JSX, it is simpler to onboard contributors and to keep diffs focused on logic.

Use this React formatter to normalize props layout handlers and component structure and to prepare code for review or integration. The JSX tool is fast and supports common React patterns and it integrates easily into editor workflows or CI pipelines.

Best Practices for React JSX Formatter

  • Set consistent line length, tabs, and quotes
  • Run formatter in pre-commit hooks
  • Use with ESLint for early issue detection
  • Place complex props one per line
  • Keep components small and reusable
  • Format JSX components with Prettier or similar tools
  • Test after formatting to ensure no breakage

Conclusion

Use this online React beautifier and formatter to make JSX components clearer and easier to maintain. It runs in the browser with no setup and offers flexible options so you can produce formatted JSX that matches team or personal preferences.