Developer Utilities

HTML Formatter & Beautifier

Clean, indent, and format messy HTML markup or compress code into production-ready minified HTML with real-time live preview.

Indent:

Original Size:

566 bytes (1 lines)

Output Size:

777 bytes (36 lines)

Size Change:

+37.3% formatting

Upload File

Input HTML Code

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>
      Vitals Audit
    </title>
    <style>
      body{font-family:sans-serif;margin:0;padding:20px;color:#333;}.hero{background:#f0f9ff;padding:30px;border-radius:12px;text-align:center;}
    </style>
  </head>
  <body>
    <div class="hero">
      <h1>
        Fast & Free Website Audits
      </h1>
      <p>
        Measure Core Web Vitals, SEO, and Security in one click.
      </p>
      <button onclick="alert('Auditing!')" class="btn">
        Run Live Audit
      </button>
    </div>
    <ul>
      <li>
        LCP & INP Optimization
      </li>
      <li>
        Structured Data Validation
      </li>
      <li>
        Security Headers Check
      </li>
    </ul>
  </body>
</html>

About this tool

Comprehensive documentation & audit utility guide

Verified Utility

HTML Beautifiers parse raw HTML documents, reconstruct the Document Object Model (DOM) tag hierarchy, and apply uniform nesting indentations to make code readable and maintainable. Minifiers do the reverse by stripping whitespace and comments to accelerate page load speeds.

How it works

Paste or Upload HTML

Paste your raw HTML document, landing page template, or component snippet.

Choose Beautify or Minify

Select custom indentation rules (2 spaces, 4 spaces, or tabs) or minify markup.

Live Preview & Verify

Inspect formatted syntax side-by-side or switch to the Live Render iframe preview.

Copy or Download Output

Copy the cleaned HTML directly or download a production-ready .html file in 1 click.

What it checks

Correct nesting indentation for nested div, table, list, and form elements

Preservation of inline tags, attributes, CSS styles, and embedded script tags

HTML Minification with comment stripping and byte-reduction statistics

Live sandboxed visual render preview within your browser