Free HTML Tools

HTML Viewer

Preview HTML code online free with a sandboxed browser frame, source statistics, upload support and desktop or mobile view sizes.

Client-side

HTML input

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Invoice preview</title>
  <style>
    body { font-family: Arial, sans-serif; margin: 32px; color: #222; }
    .invoice { max-width: 760px; margin: auto; border: 1px solid #ddd; padding: 24px; border-radius: 12px; }
    h1 { margin-top: 0; color: #e5322d; }
    table { width: 100%; border-collapse: collapse; margin-top: 20px; }
    th, td { border-bottom: 1px solid #e5e5e5; padding: 10px; text-align: left; }
    .total { font-weight: 700; }
  </style>
</head>
<body>
  <main class="invoice">
    <h1>Invoice</h1>
    <p>Convert this HTML preview to a PDF or image directly in your browser.</p>
    <table>
      <thead><tr><th>Item</th><th>Amount</th></tr></thead>
      <tbody>
        <tr><td>Design work</td><td>₹4,000</td></tr>
        <tr><td>Development</td><td>₹8,000</td></tr>
        <tr class="total"><td>Total</td><td>₹12,000</td></tr>
      </tbody>
    </table>
  </main>
</body>
</html>

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Preview options

Sanitize active HTML

Live preview

Characters

1,048

Lines

Bytes

1,054

About HTML Viewer

Preview HTML code online free with a sandboxed browser frame, source statistics, upload support and desktop or mobile view sizes. The work happens in your browser, so your input stays on your device while you prepare the result.

Checking small HTML snippets, email fragments and layout examples before publishing.

Viewing an HTML file without opening a full code editor.

When to use HTML Viewer

Use HTML Viewer when you need checking small html snippets, email fragments and layout examples before publishing. Preview HTML code online free with a sandboxed browser frame, source statistics, upload support and desktop or mobile view sizes. The page is designed as a direct work surface, so you can reach the tool, understand the inputs and finish the task without creating an account.

Before entering data, check the exact result you need and whether the output will be copied, downloaded, printed or submitted elsewhere. The most useful controls for this tool are Live HTML preview, Sandboxed iframe output and Desktop, tablet and mobile widths, which helps you avoid repeating the same work in another app.

This tool is also useful for viewing an html file without opening a full code editor. Because the work runs in the browser, it is a good fit for routine checks, drafts and small private inputs that do not need a cloud account or shared workspace.

After creating the result, review the visible output before using it in a payment flow, document, design, message, code snippet or calculation. Small mistakes in copied text, numbers, colors, units or encoded data can create larger problems after the result is shared.

Common mistakes to avoid

Using HTML Viewer without checking the destination requirement first.
Copying the first result without reviewing spelling, numbers, units or formatting.
Scripts are disabled by default so pasted HTML cannot run active code in the page.
Clearing the page before saving or copying the final result.

Practical tips

Scripts are disabled by default so pasted HTML cannot run active code in the page.
Use the responsive preview tool when you need several viewport widths at once.
Keep source values nearby when the result will be used in a form or document.
Use related tools from the same category when the task has another preparation step.

Common questions

Does this tool upload my data?

No. The tool runs in your browser and keeps the selected content on your device.

Is this tool free?

Yes. It is free to use in the browser and does not require an account.

Does the preview run JavaScript?

No. The preview is sandboxed and keeps scripts disabled by default for safer testing.