HTML Beautifier Online

This HTML beautifier cleans and formats messy or minified markup into readable, consistent HTML. The tool runs entirely in your browser so there is no installation or command line work. Paste your markup, pick formatting options, and get a tidy HTML output you can copy into your project or local device.

Key features

  • Instant HTML formatting in the browser
  • Options for indent size and indentation type
  • Attribute wrapping to avoid very long lines
  • Inline tag control and configurable unformatted tags
  • Support for HTML5, XHTML style adjustments, and templating engines
  • Free to use with no signup required

How to use this HTML beautifier

  1. Paste raw, minified, or cluttered HTML into the left editor.
  2. Set your preferences for indent size, attribute wrapping, and inline tag handling.
  3. Click the Beautify HTML button to run the HTML formatter online in your browser.
  4. Copy or Download the formatted HTML from the right editor.

Example 1: Simple Layout (Raw vs. Beautified)

Minified HTML

Copy
<div><header><h1>My Site</h1></header><nav><ul><li><a href="/">Home</a></li><li><a href="/blog" class="broken_link">Blog</a></li></ul></nav><main><section><p>Welcome!</p></section></main><footer><p>©2025 Example</p></footer></div>

Formatted HTML Markup

Copy
<div>
    <header>
        <h1>My Site</h1>
    </header>
    <nav>
        <ul>
            <li><a href="/">Home</a>
            </li>
            <li><a href="/blog" class="broken_link">Blog</a>
            </li>
        </ul>
    </nav>
    <main>
        <section>
            <p>Welcome!</p>
        </section>
    </main>
    <footer>
        <p>©2025 Example</p>
    </footer>
</div>

Example 2: Component with Attributes (Raw vs. Beautified)

Minified HTML

Copy
<custom-card data-title="Card" data-id="42" class="card"><div class="card-header"><h2>Header</h2></div><div class="card-body"><p>Content</p></div><div class="card-footer"><button onclick="alert('OK')">OK</button></div></custom-card>

Beautified HTML

Copy
<custom-card data-title="Card" data-id="42" class="card">
    <div class="card-header">
        <h2>Header</h2>
    </div>
    <div class="card-body">
        <p>Content</p>
    </div>
    <div class="card-footer">
        <button onclick="alert('OK')">OK</button>
    </div>
</custom-card>

Beautify HTML with Customizations

Beautify your HTML code with these extensive customizations as per your coding style or project needs. Below table contains all available settings:

Option Default Description
Indent Size 4 Number of spaces or tabs for each indentation level in the formatted HTML.
Indent Char Space Character used for indentation (space or tab).
Use Tabs False Enable tabs instead of spaces for indentation.
EOL LF End-of-line character (LF, CR, or CRLF).
Ending Newline False Add a newline at the end of the formatted output.
Keep Linebreaks True Preserve existing line breaks in the original code.
Indent Level 0 Starting indentation level for the entire document.
Wrap Length 120 Maximum characters per line before wrapping.
Max Newlines 10 Maximum consecutive newlines allowed in the output.
Indent <html> False Indent content within the <html> tag.
Indent <body> False Indent content within the <body> tag.
Indent <head> False Indent content within the <head> tag.
Indent Templating False Handle indentation for templating languages (e.g., PHP in WordPress).
Wrap Attrs Auto Wrap long attributes onto multiple lines.
Wrap Indent 4 Indentation for wrapped attributes.
Keep Attr Breaks False Preserve line breaks in attributes from the original code.
Unformatted Tags a,span,b,i,u Tags whose content should not be formatted (e.g., inline elements).
Skip Content - Tags to skip formatting entirely (e.g., code blocks).
Extra Liners head,body Tags that get an extra newline before them.
Inline Tags - Tags treated as inline (no newlines around them).
Templating Engines auto Detect and support templating engines like PHP or Angular.

These options make this tool the most versatile HTML formatter online, allowing you to fine-tune outputs for specific needs like Angular HTML formatter or Sublime Text-style formatting.

Why Choose this Free HTML Formatter Over Others?

In a sea of tools, this free and online HTML beautifier stands out as the best due to its browser-based convenience, zero-cost access, and advanced customization options.

Unlike Sublime Text or VS Code HTML formatter plugins or downloadable software, this tool requires no setup and works seamlessly on mobile or desktop.

Best practices for SEO and workflow

  • Use this HTML formatter before pushing content to production so markup is consistent and easy to audit.
  • Run the formatter as part of your code review step to keep team style consistent.
  • For SEO pages include descriptive alt and title attributes on images and ensure heading order is logical.
  • Keep the formatted output in source control to reduce noise in diffs by avoiding mixed whitespace changes.

Conclusion

Elevate your web development game with our exceptional HTML beautifier online, the free, browser-based solution to beautify HTML code, format messy markup, and achieve flawless readability.