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HTML Formatter
Format and beautify HTML code with proper indentation, structure, and spacing for better readability
htmlformatterbeautifiercodeformatprettifymarkup
Formatting Options
Input HTML
Formatted Output
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About HTML Formatter
The HTML Formatter tool helps developers format and beautify their HTML code for better readability and maintenance. It automatically adds proper indentation, spacing, and line breaks to make your markup clean and professional. Perfect for cleaning up minified HTML or improving code structure.
✨ Key Benefits
- Format messy or minified HTML code
- Improve markup readability and maintainability
- Standardize HTML formatting across projects
- Save time on manual code formatting
- Copy formatted code to clipboard
- Real-time formatting as you type
- Customizable formatting options
- Works entirely in your browser
🚀 Features
- Automatic HTML code formatting
- Proper indentation and spacing
- Element and attribute alignment
- Tag and content formatting
- Comment preservation
- Nested element handling
- Self-closing tag support
- Minified HTML expansion
- Copy to clipboard functionality
- Real-time preview
💡 Use Cases
- Formatting minified HTML files
- Cleaning up messy legacy HTML
- Standardizing team HTML formatting
- Preparing HTML for code reviews
- Making HTML more readable for debugging
- Converting one-liner HTML to readable format
- Educational purposes for learning HTML
- Preparing HTML for documentation
🎯 Fun Facts
- HTML was invented by Tim Berners-Lee in 1990 while working at CERN
- The first web page ever created is still online at info.cern.ch
- Proper HTML formatting can improve code readability by up to 60%
- HTML5 introduced over 100 new elements and attributes
- The HTML specification is maintained by the W3C and WHATWG
- Well-formatted HTML reduces debugging time and improves team collaboration
- HTML is used by over 95% of all websites worldwide
- The `<div>` element was introduced in HTML 3.2 and became the most used element
📚 Historical Context
- HTML 1.0 was released in 1993, consisting of just 18 elements
- HTML 2.0 (1995) introduced forms, tables, and browser-specific features
- HTML 3.2 (1997) brought standardized tables, scripts, and better internationalization
- HTML 4.0 (1997) introduced CSS integration and accessibility features
- XHTML 1.0 (2000) required well-formed XML syntax for HTML documents
- HTML5 (2014) revolutionized web development with semantic elements and multimedia support
- Modern build tools and formatters became essential for maintaining large codebases
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