HTML Minifier

Compress and optimize your HTML source code in real time. Strip comments, collapse whitespace, and track byte savings.

Raw HTML

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Sample Web Page</title>
    
    <style>
      body {
        background-color: #f4f4f4;
        color: #333;
        font-family: sans-serif;
      }
      .card {
        padding: 20px;
        background: white;
      }
    </style>
  </head>
  <body>
    
    <div id="app" class="container" style="display: block;">
      <h1 class = "title">Welcome to the Sumo Page</h1>
      <p class="description">
        This is a sample HTML template that contains comments, 
        indented code, redundant attributes, and extra whitespace.
      </p>
      
      <button type="button" disabled="disabled" class="btn">
        Submit Form
      </button>
      
      <input type="text" readonly="readonly" required="required" value="Sample Value" />
    </div>

<script type="text/javascript">
      console.log("Hello from the console!");
      function checkStatus() {
        return true;
      }
    </script>
  </body>
</html>

Minification Options

Remove CommentsStrip HTML standard comments ()

Collapse WhitespaceRemove newlines, tabs, and duplicate spaces

Strip Redundant AttributesRemove standard defaults like type="text/javascript"

Simplify Boolean AttributesConvert disabled="disabled" to shorthand disabled

Compression Stats

24.1%Saved

Original Size:1.09 KB

Compressed Size:849 Bytes

Bytes Saved:269 Bytes

Minified Output HTML

<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>Sample Web Page</title> <style>
      body {
        background-color: #f4f4f4;
        color: #333;
        font-family: sans-serif;
      }
      .card {
        padding: 20px;
        background: white;
      }
    </style> </head><body><div id="app" class="container" style="display: block;"><h1 class="title">Welcome to the Sumo Page</h1><p class="description"> This is a sample HTML template that contains comments, indented code, redundant attributes, and extra whitespace. </p><button type="button" disabled class="btn"> Submit Form </button><input type="text" readonly required value="Sample Value" /></div> <script type="text/javascript">
      console.log("Hello from the console!");
      function checkStatus() {
        return true;
      }
    </script> </body></html>

What is HTML minification?

HTML minification is the process of stripping unnecessary characters from your website's source code without altering how it functions in the browser. When a web designer writes code, they use line breaks, comments, indentation, and spacious structures to make the code easy for humans to read and maintain. However, web browsers do not need these visual aids to render the page. Minifying compresses the HTML by removing these developer comforts, producing a tighter code block that travels over the internet much faster.

Why does minifying HTML matter for SEO?

Page speed is a primary search engine ranking factor. Google's Core Web Vitals measure indices like Largest Contentful Paint (LCP) and First Input Delay (FID), which are directly impacted by the weight of your raw files. If your HTML file is bloated with thousands of lines of formatting, comments, and empty whitespace, it takes longer to download and parse. By running your pages through an HTML minifier, you reduce the payload size, allowing your servers to load content faster, lowering bounce rates, and improving search engine visibility.

How does this client-side minifier work?

Unlike tools that process your HTML on external servers, this minifier is 100% client-side. This means your code never leaves your device, keeping your sensitive proprietary markup or form structures completely private. We use a placeholder matching routine to identify and temporarily swap out sensitive tags like <pre>, <textarea>,<script>, and <style> before performing the compression. This prevents the minifier from flattening code syntax in scripts or altering layout alignments in preformatted text blocks, giving you a clean compression ratio without breaking functionality.