HTML Editor Online
Write HTML, CSS and JavaScript and see the result live as you type. Includes a console, phone and tablet preview, templates and one-click download — your code is saved on your device.
Runs in your browser in a safe sandbox, and your code is saved on this device only. Shortcuts: Ctrl + Enter to run, Ctrl + S to download.
How to Use the Online HTML Editor
Build and test a web page in your browser in three steps.
Write Your Code
Type in the HTML, CSS and JavaScript tabs, open a file, or start from a template.
See It Live
The preview updates as you type. Check messages and errors in the Console and test phone and tablet sizes.
Download or Copy
Download everything as one index.html file, or copy the full code.
Preview
Live as you type
Console
Logs & errors
Test sizes
Phone, tablet, desktop
Auto-save
On your device
Safe
Sandboxed preview
Price
100% free
HTML Starter Cheat Sheet
Tags you will use in almost every page.
| Tag | What it is for |
|---|---|
<h1> … <h6> | Headings — use one <h1> per page |
<p> | A paragraph of text |
<a href="…"> | A link |
<img src="…" alt="…"> | An image (always add alt text) |
<ul> / <ol> + <li> | Bullet and numbered lists |
<div> / <section> | Boxes to group and lay out content |
<button>, <input>, <form> | Buttons and forms |
<meta name="viewport"…> | Makes the page fit on phones |
What Can You Use It For?
Popular ways people use HTML Editor Online.
Learn HTML & CSS
Practise with instant feedback — perfect for students and beginners.
Quick Experiments
Try a layout, animation or JavaScript idea in seconds.
Email & Widgets
Test email templates, embed codes and snippets.
Teaching & Interviews
Show code live to a class or in a coding interview.
Tips for the Best Result
- Your code is saved in this browser automatically — come back later and it is still there.
- Use the phone button to check your page on a small screen.
- Errors in your JavaScript appear in red in the Console with the line number.
- Finished? Shrink the file with the HTML Minifier before you publish.
Frequently Asked Questions
Quick answers about HTML Editor Online.
A web page where you can write HTML, CSS and JavaScript and see the result instantly, without installing any software.
Yes, automatically, in your own browser on this device. Clearing your browser data removes it, so download important work.
Yes. JavaScript runs in the preview, and console.log messages and errors are shown in the Console panel.
Yes. The preview runs in a sandbox that cannot access this website, your cookies or your saved data.
Yes. Click Open file and choose an .html, .css or .js file — it opens in the right tab.
Yes. Add their CDN <link> or <script> tags to your HTML.
Yes. It works on phones, tablets and computers, though a keyboard is easier for long code.
Yes — 100% free, with no sign-up and no limits.
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