💻 HTML Editor Studio

Edit code on the left or visually on the right.

Source Code (Editable) HTML5
Preview (Visual) Ready

How does this HTML Editor work?

This tool is a "WYSIWYG" (What You See Is What You Get) development environment. You can write HTML tags on the left and see the result instantly on the right. Additionally, the right panel is editable: you can click on the preview text, type, and the code will update itself.

`; // --- SYNCHRONIZATION LOGIC --- function updateVisualFromCode() { const doc = visualEditor.contentDocument || visualEditor.contentWindow.document; doc.open(); doc.write(codeEditor.value); doc.close(); doc.designMode = "on"; // Enable visual editing attachVisualEvents(doc); } function updateCodeFromVisual() { const doc = visualEditor.contentDocument || visualEditor.contentWindow.document; codeEditor.value = doc.documentElement.outerHTML; } function attachVisualEvents(doc) { ['input', 'keyup', 'paste', 'cut', 'mouseup'].forEach(evt => { doc.addEventListener(evt, () => { isSyncingCode = true; updateCodeFromVisual(); statusMsg.innerText = "Syncing..."; setTimeout(() => statusMsg.innerText = "Ready", 500); isSyncingCode = false; }); }); } // --- EVENTS --- // 1. Write code -> Update Visual codeEditor.addEventListener('input', () => { if (!isSyncingCode) { updateVisualFromCode(); statusMsg.innerText = "Rendering..."; setTimeout(() => statusMsg.innerText = "Ready", 500); } }); // 2. Clean btnClean.addEventListener('click', () => { if (confirm("Delete all code?")) { codeEditor.value = ""; updateVisualFromCode(); } }); // 3. Download btnDownload.addEventListener('click', () => { let filename = prompt("File name:", "index"); if (!filename) return; if (!filename.toLowerCase().endsWith('.html')) filename += '.html'; const blob = new Blob([codeEditor.value], { type: 'text/html' }); const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href = url; a.download = filename; document.body.appendChild(a); a.click(); document.body.removeChild(a); }); // 4. Copy btnCopy.addEventListener('click', () => { navigator.clipboard.writeText(codeEditor.value).then(() => { const originalText = btnCopy.innerHTML; btnCopy.innerHTML = "✅ Copied!"; setTimeout(() => btnCopy.innerHTML = originalText, 2000); }); }); // Start codeEditor.value = initialContent; updateVisualFromCode();

What is the Live HTML Editor and why should you use it?

The Live HTML Editor is a technical tool designed for developers, web designers, and students who need agility when writing code. Unlike traditional text editors, this utility allows immediate visualization of how the code is rendered in the browser, eliminating the need to constantly save files and reload pages.

Advantages of using a code editor with real-time preview

Working in a development environment in real-time offers multiple benefits for productivity and learning:

How to make the most of this tool

To get the best results with our editor, we recommend following these steps:

  1. Type or paste your HTML structure into the editing panel.
  2. Add CSS styles within <style> tags to shape your design.
  3. Watch how the preview window automatically updates with each keystroke.
  4. Copy the final code once the design is exactly what you're looking for.

Whether you're creating an email signature, testing a new Bootstrap component, or practicing your frontend skills, our editor provides the flexibility you need.

Editorial Team | Utilidades.io

Editorial Team | Utilidades.io

We develop practical and free tools for everyday use.