Beautify HTML Online — Free HTML Beautifier

Beautify HTML documents instantly with our free online tool. Format markup with consistent indentation. All processing in your browser.

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HTML Beautification

Beautify HTML online. Format markup with consistent indentation — browser-local processing.

Features

Format HTML markup with consistent indentation and line breaks without changing browser rendering.

Beautify HTML

Format HTML markup with consistent indentation and line breaks without changing browser rendering.

Basic example

Input HTML

<!DOCTYPE html>
<html>
  <head>
    <title>My Page</title>
  </head>
  <body>
    <h1>Hello World</h1>
    <p>This is a paragraph.</p>
  </body>
</html>

Minified HTML

<!DOCTYPE html><html><head><title>My Page</title></head><body><h1>Hello World</h1><p>This is a paragraph.</p></body></html>

Minification options

Remove Comments

Removes all HTML comments from code

Comparison with/without option:

Original code

<div>
  <!-- This is a comment -->
  <p>Content</p>
  <!-- Another comment -->
</div>

With removeComments: true

<div><p>Content</p></div>

With removeComments: false

<div><!-- This is a comment --><p>Content</p><!-- Another comment --></div>

Collapse Whitespace

Collapses multiple whitespace characters into single spaces

Comparison with/without option:

Original code

<div>
    <p>   Multiple   spaces   </p>
    <span>  Text  </span>
</div>

With collapseWhitespace: true

<div><p> Multiple spaces </p><span> Text </span></div>

With collapseWhitespace: false

<div><p>   Multiple   spaces   </p><span>  Text  </span></div>

How to Unminify HTML Online

HTML unminification restores readable formatting to compressed HTML documents. Paste any minified HTML into our tool and click Unminify to add proper indentation, organize nested elements, and format attributes. This is essential for debugging production websites, inspecting minified templates, or reviewing HTML generated by CMS platforms.

HTML Minification — What Gets Removed

HTML minification removes unnecessary whitespace between tags, HTML comments, optional closing tags, redundant attributes, and empty attribute values. It preserves all content, inline styles, scripts, and structural elements. Your page will render identically in all browsers after minification. Minification does not escape untrusted text for safe HTML output—when you need to preview or debug entity escaping on a snippet, use our HTML entities tool.