How is this different from the visual editor?

This tool is for viewing — paste HTML to see it rendered instantly and export screenshots. If you want to click elements to edit text, swap images, or adjust layout, use the Visual HTML Editor in the same category.

The preview runs in a sandboxed iframe with restricted script permissions. Everything happens locally in your browser; no HTML is uploaded to any server.

Which viewports are supported?

Mobile (375px), Tablet (768px) and Desktop (full width), so you can verify AI-generated responsive layouts.

HTML Live Preview Online — Render AI HTML Instantly, No Setup

pages.dev.htmlPreview.upload

HTML pages.dev.htmlPreview.demoHint

35 pages.dev.htmlPreview.lines

<!DOCTYPE html>
<html lang="en" data-theme="dark">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>MeTool.online — 80+ Free Online Tools</title>
  <style>
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root { --bg: #ffffff; --text: #111118; --muted: #6b6b80; --card: #f4f4f8; --border: #e2e2ea; }
    [data-theme="dark"] { --bg: #080811; --text: #e8e8f0; --muted: #7c7c9e; --card: #12121f; --border: #1e1e30; }
    body { font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; line-height: 1.6; transition: background .2s, color .2s; }
    .hero { max-width: 720px; margin: 0 auto; padding: 64px 24px 48px; text-align: center; }
    h1 { font-size: clamp(1.9rem, 4.5vw, 3rem); font-weight: 900; letter-spacing: -.04em; line-height: 1.1; margin-bottom: 16px; }
    .hero p { font-size: 16px; color: var(--muted); max-width: 520px; margin: 0 auto 32px; }
    .cta { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; border-radius: 12px; font-size: 15px; font-weight: 700; color: #fff; text-decoration: none; background: linear-gradient(135deg, #7c3aed, #06b6d4); }
    .badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 40px; }
    .badge { padding: 6px 14px; border-radius: 99px; font-size: 13px; font-weight: 500; background: var(--card); color: var(--text); border: 1px solid var(--border); }
  </style>
</head>
<body>
  <div class="hero">
    <h1>80+ Free Tools. No Upload. 100% Private.</h1>
    <p>Image, video, documents, developer utilities, 3D preview &amp; more — all running directly in your browser.</p>
    <a class="cta" href="https://metool.online" target="_blank">Open metool.online →</a>
    <div class="badges">
      <span class="badge">🖼 Image</span>
      <span class="badge">🎬 Video</span>
      <span class="badge">📄 Docs</span>
      <span class="badge">🧑‍💻 Dev</span>
      <span class="badge">🎮 Games</span>
      <span class="badge">✨ Magic</span>
    </div>
  </div>
</body>
</html>

pages.dev.htmlPreview.preview

pages.dev.htmlPreview.vpDesktop

What You Can Do With It?

Preview AI HTML

Paste AI HTML output and see it instantly

Email Templates

Preview HTML email layout across devices

Debug Styles

Preview isolated snippets to pinpoint CSS bugs

Test Responsive

Switch viewports to verify mobile layout

Why Choose This Tool?

Live Render

Paste and render instantly — WYSIWYG

Viewports

Switch mobile / tablet / desktop widths

Screenshot

Export PNG / JPG / PDF in one click

Local & Private

HTML rendered locally, never uploaded

How To Use?

Paste HTML

Paste code or upload a .html file

Preview

Renders instantly; switch viewports to check

Paste HTML

Paste code or upload a .html file

Preview

Renders instantly; switch viewports to check

Related Tools

Visual HTML Editor

Upload any HTML and edit it visually: click elements to rewrite text, change fonts and colors, swap images (embedded as base64), drag to reorder, undo/redo, find & replace — no code. Built for non-coders polishing AI-generated HTML. 100% browser-local, nothing uploaded.

HTML Share

Upload HTML and generate a shareable link recipients open in any browser — no install. Small files compress into the link; larger files use a third-party temporary store with your consent. Links valid for days. Great for sharing AI-generated pages, reports and prototypes.

Markdown Editor

Don't know how to open a .md file? Drop it in your browser to view and edit instantly. Online Markdown editor with live side-by-side preview, code highlighting, image upload, and dark mode. Drafts auto-save locally — 100% private.

Markdown Share

Paste your Markdown document and generate a shareable preview link. Recipients see the full rendered layout without installing anything. Links expire automatically after 7 days. Data stays in your browser.

HTML to MD

Paste any HTML — copied from a webpage, WeChat article, blog post or rich-text editor — and convert it to clean, GFM-flavored Markdown. Smart cleanup of inline styles, tables, code blocks, blockquotes and images. Runs 100% in your browser; nothing is uploaded.

JSON Formatter

Free online JSON formatter and beautifier tool. One-click format messy JSON data with syntax highlighting, auto-indent, error detection, expand/collapse, copy to clipboard. Essential developer tool for API debugging and config file viewing.

Text Diff

Free online text and code diff tool. Paste any two snippets — code, configs, or articles — and see line-by-line differences highlighted instantly. No Git required.

Frequently Asked Questions

: This tool is for viewing — paste HTML to see it rendered instantly and export screenshots. If you want to click elements to edit text, swap images, or adjust layout, use the Visual HTML Editor in the same category.
: The preview runs in a sandboxed iframe with restricted script permissions. Everything happens locally in your browser; no HTML is uploaded to any server.
: Mobile (375px), Tablet (768px) and Desktop (full width), so you can verify AI-generated responsive layouts.

Encountered other problems or suggestions? Have a bug or suggestion? Drop us an email.

Email Us

Online HTML live preview: the fastest way to view HTML in the AI era

AI generates more and more HTML, but the traditional way to view it — saving a .html file and opening it in a browser — is clunky. MeTool HTML Live Preview removes that friction: paste or upload, see it rendered instantly, switch between mobile / tablet / desktop viewports, and export screenshots — all locally in your browser, with no upload.

If you want to do more than view — edit text, swap images, adjust layout — use the Visual HTML Editor in the same category; to send a finished page to others, use the HTML Share Link.

What You Can Do With It?

Preview AI HTML

Email Templates

Debug Styles

Test Responsive

Why Choose This Tool?

Live Render

Viewports

Screenshot

Local & Private

How To Use?

Paste HTML

Preview

Paste HTML

Preview

Related Tools

Frequently Asked Questions

How is this different from the visual editor?

Is the preview safe?

Which viewports are supported?

Online HTML live preview: the fastest way to view HTML in the AI era