HTML Formatter

HTML Formatter

HTML formatter and beautifier online. Format, prettify, or minify HTML with proper indentation. HTML pretty print free in your browser.

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Input

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Output
 1 lines
 
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Features
 
  •  Format and beautify HTML with proper indentation
  •  Minify HTML to reduce file size
  •  Configurable indentation (2 or 4 spaces)
  •  Toggle attribute formatting (one per line)
  •  Strip HTML comments option
  •  Instant formatting with live preview
 
Common Use Cases
 
  •  Clean up messy HTML from email templates or CMS exports
  •  Prepare HTML for production by minifying
  •  Make minified HTML readable for debugging
  •  Standardize code formatting across a project
  •  Format HTML before committing to version control
 
HTML Formatting and Minification
 
HTML formatting is the process of organizing HTML code with proper indentation and line breaks to improve readability. Properly formatted HTML makes it easier to understand document structure, debug issues, and maintain code.

			
			
Beautifying adds whitespace, indentation, and line breaks to make code human-readable. This is useful during development when you need to inspect and modify HTML.

			
			
Minification removes all unnecessary whitespace, comments, and line breaks to reduce file size. Minified HTML loads faster but is harder to read. It's typically used in production to optimize page load times.

			
			
Key formatting considerations:

			
    
				
  • Indentation: Nested elements are indented to show hierarchy
    • 
				
  • Attributes: Can be single-line or one-per-line for readability
    • 
				
  • Self-closing tags: Properly formatted with or without trailing slash
    • 
				
  • Comments: Can be preserved or stripped based on needs
    • 
			
 
Examples
 
 Valid - Unformatted HTML
 
<div class="container"><h1>Title</h1><p>Content here</p></div>
 Valid - Beautified HTML
 
<div class="container">
  <h1>Title</h1>
  <p>Content here</p>
</div>
 Valid - Email Template Cleanup
 
<table style="width:100%"><tr><td>Cell</td></tr></table>
  
Frequently Asked Questions
 
 
Does formatting change how my HTML renders?
 
No, HTML formatting only affects whitespace, which browsers ignore in most contexts. Your page will look identical after formatting or minification.
 
Should I minify HTML for production?
 
Yes, minifying HTML reduces file size and improves page load times. Most build tools (Webpack, Vite, Parcel) include HTML minification automatically.
 
What's the difference between 2-space and 4-space indentation?
 
2-space indentation is more compact, while 4-space is more readable. Choose based on your project's style guide or personal preference. Most modern tools use 2 spaces for HTML.
 
Will formatting fix HTML errors?
 
No, formatting only adjusts whitespace and indentation. It won't fix unclosed tags, invalid nesting, or other structural errors. Use the HTML Validator tool to find errors.
 
Can I preserve comments while formatting?
 
Yes, you can toggle the "Remove comments" option to keep or strip HTML comments. Keep comments for documentation, remove them for production minification.
 
💡 Tips
 
  •  Use prettify mode during development for readability, then minify before deploying to production
  •  Enable "one attribute per line" for complex elements with many attributes to make git diffs clearer
  •  Keep comments in development builds for documentation, remove them in production for smaller file sizes
  •  Format HTML before committing to version control to reduce merge conflicts and improve code review
  
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