HTML Beautifier

Format and validate your HTML. Automatically indent, organize elements, and detect errors.

Input HTML

Formatted HTML

How to Use the Free Online HTML Beautifier

Basic Usage

  1. Paste your HTML code into the Input HTML editor
  2. Configure formatting options as needed
  3. Click Beautify to format your HTML
  4. The formatted result will appear in the Formatted HTML editor
  5. View the rendered HTML in the preview section

Formatting Options

  • Remove Comments: Strips HTML comments from the output for cleaner code
  • Minify: Removes all whitespace for compact, single-line output
  • Indent Spaces: Set the number of spaces used for each indentation level (0-10)

HTML Beautifier Features

  • HTML Validation: Automatically checks for syntax errors and improper nesting
  • Live Preview: See how your formatted HTML will render in a browser
  • Syntax Highlighting: Colors different parts of HTML for better readability
  • DOCTYPE Preservation: Maintains HTML doctype declarations when present
  • Proper Indentation: Automatically indents nested elements for better structure
  • Self-closing Tag Handling: Properly formats void elements (like img, br, hr)

Helpful Tips

  • Use the Remove Comments option to clean up production HTML
  • Try Minify when you need to reduce file size for faster page loading
  • The preview section helps you verify that formatting doesn't affect rendering
  • Fix validation errors before proceeding - the tool will highlight syntax problems
  • Use the Maximize button (expand icon) to work with larger HTML documents
  • Load the sample HTML to see how the tool works if you're new to HTML formatting

Privacy & Security: All HTML processing happens entirely in your browser. Your code isn't sent to any server, ensuring complete privacy and security for your sensitive information.

Common Use Cases

  • Cleaning up machine-generated HTML code
  • Formatting HTML email templates for better readability
  • Standardizing code style across development teams
  • Preparing HTML for documentation or tutorials
  • Converting minified HTML to readable format
  • Tidying up CMS-generated HTML content
  • Debugging HTML structure and element relationships
  • Learning HTML through properly formatted examples

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