Does HTML minification affect functionality?

No. HTML minification only removes whitespace characters, line breaks, and comments that do not affect functionality. It does not modify tag structure or attribute values, so your web pages will display and function exactly the same.

Can I restore minified HTML back to its original form?

No, minification is not reversible. Whitespace and comments are permanently removed. It is recommended to keep a backup of your original HTML file. When needed, you can use an HTML formatter or beautifier tool to reformat the code.

How much can HTML minification reduce file size?

Typically 20%-40% reduction, depending on the amount of whitespace and comments in the original code. Code with more consistent indentation and line breaks will see greater compression benefits.

Is my HTML code safe when using this tool?

Yes. This tool runs entirely in your browser. All processing is done client-side, and your code is never uploaded to any server. Your privacy is completely protected.

Can I minify multiple HTML files at once?

The current version supports pasting code and uploading a single file. For batch processing, consider merging files or using CLI tools like html-minifier-terser or Terser in your build pipeline.

Free Online HTML Minifier - Minify HTML Code·Reduce File ...

Input HTML Code

📁

Drag & drop HTML file here, or click to upload

{
  "@context": "https://schema.org",
  "@type": "BreadcrumbList",
  "itemListElement": [
    {
      "@type": "ListItem",
      "position": 1,
      "name": "Home",
      "item": "https://webtools-cn.github.io/tools-site/en/"
    },
    {
      "@type": "ListItem",
      "position": 2,
      "name": "Developer Tools",
      "item": "https://webtools-cn.github.io/tools-site/en/#developer-tools"
    },
    {
      "@type": "ListItem",
      "position": 3,
      "name": "🛠️ Online HTML Minifier",
      "item": "https://webtools-cn.github.io/tools-site/en/html-minifier/"
    }
  ]
}
</script>
</head>
  <body>
    <h1>Hello World</h1>
  

<div id="feedback-widget" style="position:fixed;bottom:20px;right:20px;z-index:1000">
<button id="feedback-toggle" onclick="toggleFeedback()" style="width:48px;height:48px;border-radius:50%;background:rgba(6,182,212,.2);border:2px solid rgba(6,182,212,.5);color:#22d3ee;font-size:1.2rem;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.3);transition:all .2s" onmouseover="this.style.background='rgba(6,182,212,.4)'" onmouseout="this.style.background='rgba(6,182,212,.2)'">💬</button>
<div id="feedback-panel" style="display:none;position:absolute;bottom:56px;right:0;width:320px;background:#1e293b;border:1px solid rgba(6,182,212,.3);border-radius:12px;padding:16px;box-shadow:0 8px 24px rgba(0,0,0,.4)">
<div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:12px">
<span style="color:#f1f5f9;font-size:.95rem;font-weight:600">📝 Feedback</span>
<button onclick="toggleFeedback()" style="background:none;border:none;color:#64748b;font-size:1.2rem;cursor:pointer">✕</button>
</div>
<select id="feedback-type" style="width:100%;background:#0f172a;border:1px solid rgba(148,163,184,.2);border-radius:6px;padding:8px 10px;color:#e2e8f0;font-size:.85rem;margin-bottom:8px;outline:none">
<option value="feedback">💡 Feature Request</option>
<option value="bug">🐛 Bug Report</option>
<option value="other">💬 Other</option>
</select>
<textarea id="feedback-text" placeholder="Describe your suggestion or issue..." style="width:100%;height:100px;background:#0f172a;border:1px solid rgba(148,163,184,.2);border-radius:6px;padding:10px;color:#e2e8f0;font-size:.85rem;resize:vertical;outline:none;font-family:inherit" maxlength="1000">

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