How does this HTML formatter work?

The tool parses your HTML document into opening tags, closing tags, self-closing void elements, comments, and text nodes, reconstructing the tree with consistent indentation and line breaks.

Does it handle void elements like and ?

Yes. Standard HTML void elements ( , , , , , , , , , , , , ) are recognized and indented without expecting closing tags.

Can I minify HTML instead of beautifying?

Yes. Enable the Minify option to collapse all extraneous whitespace and newlines between tags for optimal production file size.

Will this tool fix broken or unclosed HTML tags?

The formatter structures tags cleanly based on standard HTML rules, but severely broken HTML syntax should be validated before deployment.

Is my HTML source code secure and private?

Yes. All formatting and minification runs locally within your browser using JavaScript. No source code is ever transmitted to a server.

HTML Formatter & Beautifier

Format, beautify, indent, or minify HTML markup online free.

100% free
Private in browser
No signup
No watermarks

HTML Input

Formatted HTML

416 bytes (+136 bytes)

<div class="container">
  <header>
    <nav>
      <a href="/">
        Home
      </a>
      <a href="/about">
        About
      </a>
    </nav>
  </header>
  <main>
    <h1>
      Welcome
    </h1>
    <!-- Main content section -->
    <p>
      Clean up messy HTML markup easily.
    </p>
    <img src="hero.jpg" alt="Hero" />
  </main>
  <footer>
    <p>
      &copy; 2026 TheToolss
    </p>
  </footer>
</div>

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About HTML Formatter & Beautifier

HTML Formatter on TheToolss transforms messy, unformatted, or minified HTML code into clean, well-structured, and human-readable markup. Customize indentation using 2 spaces, 4 spaces, or tabs, optionally strip HTML comments, or switch to minify mode to reduce file size. All operations run directly in your browser without sending code over the internet.

How to use HTML Formatter & Beautifier

Paste your raw, messy, or minified HTML markup into the input box.
Choose your preferred indentation (2 spaces, 4 spaces, or tabs) and formatting options.
Review the cleanly formatted HTML and click Copy to clipboard.

Key features

Beautifies raw and minified HTML with proper tag hierarchy and indentation
Customizable indentation styles: 2 spaces, 4 spaces, or tabs
Option to strip HTML comments () automatically
Fast HTML minification toggle to compress markup for production
100% private and client-side processing without server storage

Frequently asked questions

How does this HTML formatter work?: The tool parses your HTML document into opening tags, closing tags, self-closing void elements, comments, and text nodes, reconstructing the tree with consistent indentation and line breaks.
Does it handle void elements like <img> and <br>?: Yes. Standard HTML void elements (<area>, <base>, <br>, <col>, <embed>, <hr>, <img>, <input>, <link>, <meta>, <source>, <track>, <wbr>) are recognized and indented without expecting closing tags.
Can I minify HTML instead of beautifying?: Yes. Enable the Minify option to collapse all extraneous whitespace and newlines between tags for optimal production file size.
Will this tool fix broken or unclosed HTML tags?: The formatter structures tags cleanly based on standard HTML rules, but severely broken HTML syntax should be validated before deployment.
Is my HTML source code secure and private?: Yes. All formatting and minification runs locally within your browser using JavaScript. No source code is ever transmitted to a server.

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