Does this support external libraries like React or Vue? You can include external libraries by adding or tag

No, this tool does not save your work automatically. We recommend copying your code periodically or using the browser's local storage features if you need persistence. Your data never leaves your browser.

HTML Preview/Editor

No signup needed Runs in your browser Free forever tier SSL secured

Live HTML preview and editor online for free. Write HTML, CSS, and JavaScript and see the result in real-time. 100% private — no uploads to any server.

HTML Template

📝 HTML

<html lang=" en"=""><head>
  <meta charset="UTF-8">
  <title>My Page</title>
</head>
<body>
  <h1>Hello World!</h1>
<div class="paid-upsell" style="margin:1.5rem 0;padding:1.2rem 1.4rem;border-radius:12px;background:linear-gradient(135deg,var(--primary-light),#faf5ff);border:1px solid rgba(99,102,241,.2);text-align:center">
  <div style="font-size:1.6rem;margin-bottom:.4rem">🌐</div>
  <div style="font-weight:700;color:var(--text);margin-bottom:.3rem">DomainForge</div>
  <div style="font-size:.88rem;color:var(--text2);margin-bottom:.8rem">Ship your site — grab the domain first</div>
  <a href="/domainforge" class="btn" style="font-size:.85rem;padding:.55rem 1.4rem">Try DomainForge →</a>
</div>
<button onclick="toggleDark()" style="position:fixed;top:14px;right:14px;z-index:999;background:var(--bg2);border:1px solid var(--border,#e2e8f0);border-radius:999px;width:38px;height:38px;cursor:pointer;font-size:1rem;box-shadow:0 2px 10px rgba(0,0,0,.08)" title="Toggle dark mode">🌙</button>
</div>
<script>
function toggleDark(){document.body.classList.toggle('dark');try{localStorage.setItem('tooly-dark',document.body.classList.contains('dark')?'1':'0')}catch(e){}this&&(this.textContent=document.body.classList.contains('dark')?'☀️':'🌙')}
(function(){try{if(localStorage.getItem('tooly-dark')==='1')document.body.classList.add('dark')}catch(e){}})();
</script>

</script>
</body>
</html>">

🎨 CSS

💻 JavaScript

👁️ Live Preview

Try HTML Preview/Editor Now →

What Is an HTML Preview/Editor?

An HTML preview/editor is a web-based tool that allows you to write HTML, CSS, and JavaScript code and see the rendered output in real-time. It's essential for web developers, designers, and learners to quickly prototype, test, and debug web pages without setting up a local development environment.

Our online HTML preview/editor free tool provides a seamless coding experience with live preview, making it perfect for learning web development, testing code snippets, or creating quick prototypes.

How to Use the HTML Editor

Write your HTML, CSS, and JavaScript in the respective panels
See the live preview update automatically as you type
Use the template selector to start with common layouts
Click "Fullscreen" to view your creation in a dedicated tab

Features

⚡ Real-Time PreviewSee changes instantly as you type in any panel.

🔒 100% PrivateAll processing happens in your browser. Your code never leaves your device.

📱 Responsive DesignTest your creations in a responsive iframe preview.

🎯 TemplatesStart quickly with predefined templates for common layouts.

🆓 Completely FreeNo signups, no credit cards, no usage limits.

Frequently Asked Questions

Does this support external libraries like React or Vue?

Yes. You can include external libraries by adding <script> or <link> tags in your HTML panel. For example, add the React and ReactDOM script tags to use React.

Will my work be saved if I refresh the page?

No, this tool does not save your work automatically. Copy your code before refreshing, or keep the tab open. Your code never leaves your browser.

Do I need to install anything?

No installation required. This HTML preview/editor online free runs entirely in your browser. Just open the page and start coding.

Is my code safe and private?

Absolutely. Your HTML, CSS, and JavaScript never leave your browser — no uploads, no logs, no tracking. Everything runs 100% client-side.

Related Tools

Try HTML Preview/Editor Now →

', bootstrap: 'Bootstrap

Bootstrap Ready

', landing: 'Landing

Your Landing Page

Build something great.

Get Started ' }; function updatePreview(){ const html = htmlEditor.value; const css = ''; const js = ' '; previewFrame.srcdoc = fullHtml; } function loadTemplate(){ const t = templateSelect ? templateSelect.value : 'basic'; if (!templates[t]) return; htmlEditor.value = templates[t]; cssEditor.value = ''; jsEditor.value = ''; updatePreview(); } function clearAll(){ htmlEditor.value = ''; cssEditor.value = ''; jsEditor.value = ''; if (templateSelect) templateSelect.value = ''; updatePreview(); } function toggleFullscreen(){ if (!document.fullscreenElement) { previewFrame.requestFullscreen().catch(function(err){ alert('Fullscreen failed: ' + err.message); }); } else { document.exitFullscreen(); } } if (htmlEditor) htmlEditor.addEventListener('input', updatePreview); if (cssEditor) cssEditor.addEventListener('input', updatePreview); if (jsEditor) jsEditor.addEventListener('input', updatePreview); if (loadTemplateBtn) loadTemplateBtn.addEventListener('click', loadTemplate); if (clearBtn) clearBtn.addEventListener('click', clearAll); if (toggleFullscreenBtn) toggleFullscreenBtn.addEventListener('click', toggleFullscreen); // initial load loadTemplate(); })();