Code Beautifier

Format and beautify your JavaScript, HTML, and CSS code with customizable options. Clean up messy code and improve readability with our powerful code formatter.

Code Beautifier

Language

Code to beautify

Beautified result

Tool Features

Support for JavaScript, HTML, and CSS formatting
Customizable indentation and formatting options
Real-time code beautification
Copy to clipboard functionality
Swap input/output for iterative formatting

User Guide

Select Language: Choose between JavaScript, HTML, or CSS from the dropdown
Enter Code: Paste your messy code in the input textarea
Beautify: Click the "Beautify Code" button to format your code
Copy Result: Use the "Copy to Clipboard" button to copy the formatted code
Iterative Formatting: Use "Use Output as Input" to further refine formatting

Supported Languages

Our code beautifier supports the most popular web development languages:

JavaScript: ES6+, React, Vue, Angular, and Node.js code
HTML: All HTML versions including HTML5
CSS: CSS3 with modern features and preprocessors

Formatting Options

The beautifier applies intelligent formatting rules:

• 2-space indentation (configurable)
• Proper line breaks and spacing
• Consistent brace placement
• Smart comma handling
• Preserved comments and structure

All formatting follows industry best practices and maintains code functionality.

Typical Use Cases

Cleaning up minified JavaScript code
Formatting HTML templates for better readability
Organizing CSS stylesheets
Preparing code for code reviews
Converting legacy code to modern formatting standards
Debugging and troubleshooting code structure

Job Roles That Benefit

Frontend Developers
Backend Developers
Full-Stack Developers
Web Developers
Software Engineers
UI/UX Developers
DevOps Engineers
Technical Writers

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Compare and highlight code differences

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🔍 Regex Tester

Test and validate regular expressions

Code Examples

Before Beautification

function hello(name){if(name){console.log("Hello, "+name+"!");}else{console.log("Hello, World!");}}

After Beautification

function hello(name) {
  if (name) {
    console.log("Hello, " + name + "!");
  } else {
    console.log("Hello, World!");
  }
}

Important Notes

Code Safety: Beautification only changes formatting and whitespace. Your code logic remains unchanged.
Syntax Validation: The tool assumes your input code is syntactically correct. Invalid code may not format properly.
Large Files: For very large code files, consider splitting them into smaller chunks for better performance.
Browser Compatibility: Formatting rules follow modern JavaScript standards. Check compatibility for older environments.
Comments Preservation: All comments and documentation are preserved during the beautification process.