HTML Previewer

Live HTML editor with instant preview

Auto-refresh

HTML1182 chars

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <style>
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: system-ui, -apple-system, sans-serif;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .card {
      background: white;
      border-radius: 16px;
      padding: 32px;
      max-width: 400px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.2);
      text-align: center;
    }
    h1 { color: #333; margin-bottom: 8px; }
    p { color: #666; line-height: 1.6; }
    .btn {
      margin-top: 20px;
      padding: 12px 24px;
      background: #667eea;
      color: white;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      font-size: 16px;
    }
    .btn:hover { background: #5a67d8; }
  </style>
</head>
<body>
  <div class="card">
    <h1>Hello World!</h1>
    <p>This is a sample HTML preview. Edit the code on the left to see live changes.</p>
    <button class="btn" onclick="alert('Button clicked!')">Click Me</button>
  </div>
</body>
</html>

Preview

Features

• Live preview with auto-refresh (or manual refresh)
• Device preview: Desktop, Tablet (768×1024), Mobile (375×667)
• Full HTML support including CSS and JavaScript
• Download your HTML file or copy to clipboard
• Fullscreen mode for distraction-free editing

What is an HTML Previewer?

An HTML previewer lets you write HTML, CSS, and JavaScript and see the rendered result in real time. It works like a lightweight CodePen or JSFiddle directly in your browser, perfect for prototyping and learning web development.

Frequently Asked Questions

Does it support CSS and JavaScript?

Yes. Write HTML with embedded style and script tags for full web page prototyping.

Is the code saved?

Code is stored in your browser localStorage so it persists between sessions.

Can I use external libraries?

Yes. Add CDN links in script or link tags within your HTML.