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 HTML formatter

Format and beautify HTML online with this free HTML formatter. Paste messy, minified, or poorly indented HTML and get clean, readable, consistently indented HTML code in seconds. The HTML beautifier uses a real tokenizer to pretty print nested elements, preserve comments, attributes, scripts, styles, and whitespace-sensitive content, and everything runs locally in your browser without uploading data to a server.

⚙️ Formatting options
Paste HTML above and click Format HTML, or press Ctrl/Cmd + Enter.
⚠️ The HTML contains possible structural errors. The output has been formatted, but the HTML was not automatically repaired. Formatting does not mean the HTML has been validated — you can check it with the HTML Validator.
    Input: 0 chars Output: 0 chars Elements: 0 Comments: 0 Max nesting depth: 0 Time: 0 ms 
    
  
    
  
    
    
    
    
  
    

    



    


    
    
    
        
    ⭐ HTML formatter - Explanation & examples
    

        
    
            The HTML formatter (also known as an HTML beautifier) turns messy, minified, or poorly indented HTML into clean, readable, consistently structured code. Paste your HTML, click Format HTML, and the tool pretty prints your markup with proper indentation while preserving your content, attributes, comments, scripts, styles, and whitespace-sensitive elements. Everything runs locally in your browser — nothing is uploaded to a server.
        
    

        
    

        
    🔎 What does this HTML formatter do?
    

        
      
            
    • Indents nested HTML elements consistently with 2 spaces, 4 spaces, or tabs
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    • Formats minified HTML into readable multi-line HTML
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    • Keeps opening and closing tags correctly aligned
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    • Handles void elements such as <img>, <br>, <hr>, <input>, <meta>, and <link> correctly
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    • Preserves the DOCTYPE, HTML comments, text content, and attribute values
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    • Keeps <script> and <style> content intact and reindents it safely
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    • Leaves whitespace-sensitive content inside <pre> and <textarea> untouched
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    • Keeps inline elements such as <strong>, <em>, and <a> compact within their text flow
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    ⚙️ Example: beautify minified HTML
    

        
    Input:
    

        
    <!DOCTYPE html><html><head><title>Example</title></head><body><div class="container"><h1>Hello World</h1><p>This is a test.</p></div></body></html>
    

        
    Formatted output:
    

        
    <!DOCTYPE html>
<html>
  <head>
    <title>Example</title>
  </head>
  <body>
    <div class="container">
      <h1>Hello World</h1>
      <p>This is a test.</p>
    </div>
  </body>
</html>
    

        
    

        
    ⚙️ Smart inline formatting
    

        
    
            When Keep inline elements compact is enabled, the HTML formatter avoids unnecessarily breaking inline content across multiple lines. It prefers:
        
    

        
    <p>Hello <strong>world</strong>!</p>
    

        
    instead of:
    

        
    <p>
  Hello
  <strong>world</strong>
  !
</p>
    

        
    
            Block-level elements such as <div>, <section>, and <table> always receive proper indentation on their own lines.
        
    

        
    

        
    ⚙️ Formatting options
    

        
      
            
    • Indentation — choose 2 spaces (default), 4 spaces, or tabs
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    • Preserve comments — keep HTML comments in the output (on by default)
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    • Wrap long lines — wrap long text lines at a readable width (off by default)
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    • Keep inline elements compact — keep inline tags on one line with their text (on by default)
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    • Preserve meaningful whitespace — leave <pre> and <textarea> content exactly as-is (on by default)
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    • Add final newline — end the output with a newline character (on by default)
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    ✅ Why use an HTML formatter?
    

        
    
            Well-formatted HTML is easier to read, debug, review, and maintain. Whether you are inspecting minified production markup, cleaning up code generated by a CMS or export tool, preparing HTML for a code review, or learning how a page is structured, an online HTML beautifier saves time and prevents mistakes. Consistent indentation makes nesting depth obvious and helps you spot structural problems quickly.
        
    

        
    

        
    ⚠️ Notes and limitations
    

        
      
            
    • The formatter uses a real HTML tokenizer, not simple find-and-replace rules, so nested elements, attributes, scripts, styles, and comments are handled safely.
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    • The tool changes whitespace and indentation only — it does not silently repair or rewrite invalid HTML.
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    • If possible structural errors are detected (such as unclosed or mismatched tags), a warning is shown. Formatting does not mean the HTML has been validated — use the HTML Validator to check your markup.
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    • JavaScript and CSS inside <script> and <style> tags is reindented but not beautified.
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    • All processing happens in your browser. Your HTML is never uploaded to a server.
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     This tool is also known as
    
		
      
			
    • html beautifier online
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    • beautify html code
      • 
			
    • format html online free
      • 
			
    • html pretty print tool
      • 
			
    • html indenter online
      • 
		
    
    
    

    


	
    
	
    Frequently Asked Questions
    
	
    
		
    
			
		
    
		
    
			
    
				The HTML formatter beautifies messy, minified, or poorly indented HTML into clean, readable code. It normalizes indentation, aligns opening and closing tags, and preserves your content, attributes, comments, scripts, and styles.
			
    
		
    
		
    
			
		
    
		
    
			
    
				Yes. Paste minified single-line HTML and the formatter expands it into properly indented multi-line HTML, making the document structure easy to read and debug.
			
    
		
    
		
    
			
		
    
		
    
			
    
				No. The HTML formatter runs entirely in your browser using JavaScript. Your code never leaves your device, so it is safe to format private or unpublished HTML.
			
    
		
    
		
    
			
		
    
		
    
			
    
				You can choose 2 spaces (default), 4 spaces, or tabs. The formatter applies your chosen indentation consistently to every nesting level in the document.
			
    
		
    
		
    
			
		
    
		
    
			
    
				No. The formatter primarily changes whitespace and indentation. Text content, attribute values, quoted attributes, comments, and the DOCTYPE are all preserved as-is.
			
    
		
    
		
    
			
		
    
		
    
			
    
				Content inside script and style elements is kept intact and safely reindented to match the surrounding document. The JavaScript or CSS itself is not rewritten or beautified.
			
    
		
    
		
    
			
		
    
		
    
			
    
				With the Preserve meaningful whitespace option enabled (default), content inside pre and textarea elements is left exactly as-is, because whitespace is significant in these elements.
			
    
		
    
		
    
			
		
    
		
    
			
    
				When Keep inline elements compact is enabled, inline tags such as strong, em, a, and span stay on one line with their surrounding text. This keeps sentences readable and avoids introducing unwanted whitespace around inline content.
			
    
		
    
		
    
			
		
    
		
    
			
    
				No. The formatter does not silently repair or rewrite invalid HTML. If it detects possible structural errors such as unclosed or mismatched tags, it formats the input as safely as possible and shows a warning with a link to the HTML Validator.
			
    
		
    
		
    
			
		
    
		
    
			
    
				Yes. You can format complete HTML documents or standalone fragments without html, head, or body tags. The formatter handles both equally well.
			
    
		
    
		
    
			
		
    
		
    
			
    
				Yes. Press Ctrl + Enter (or Cmd + Enter on Mac) to format the HTML instantly without clicking the Format HTML button.
			
    
		
    
		
    
			
		
    
		
    
			
    
				Yes. Click Download .html to save the beautified output as formatted.html, or use the Copy button to copy only the formatted HTML to your clipboard.
			
    
		
    
	
    

    




	
    
		
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