HTML Editor Online
A full-featured online HTML editor with live preview. Write or paste HTML, see results instantly — no installation needed. Perfect for learning, prototyping, and quick edits.
Live preview
Syntax highlighting
No install needed
Live PreviewSee your HTML rendered in real time as you type
Syntax HighlightHTML, CSS, and JS code is color-coded for readability
ResponsivePreview how your page looks on different screen sizes
No InstallRuns entirely in the browser — nothing to download or install
Editor Tips & Shortcuts
Ctrl+Z Undo the last change
Ctrl+Y Redo the last undone change
Ctrl+A Select all code in the editor
Ctrl+/ Toggle comment on selected lines
Tab Indent selected lines
Shift+Tab Unindent selected lines
Use full-screen mode for a larger editing workspace
Paste any HTML snippet to instantly preview it
About HTML Editor Online
The HTML Editor Online lets you write HTML, CSS and JavaScript and see the result rendered live in the browser, without installing any software. It is useful for quick prototyping, testing snippets, learning to code, or building a small standalone page.
The live preview updates as you type, so you can see the effect of every change immediately — no need to save a file and reload it in a separate browser tab.
How to Use the HTML Editor Online
- Type or paste your HTML, CSS and JavaScript into the code panel
- Watch the live preview update automatically as you type
- Use syntax highlighting to catch errors and typos
- Copy or download your finished code when you're done
Best Practices
- Keep CSS and JavaScript organized in separate sections for readability
- Test responsive layouts by resizing the preview pane
- Use this editor for quick prototypes — move to a full IDE for larger projects
This tool is free to use with no signup required.
Frequently Asked Questions
Can I save my HTML from the editor?
Yes — use the download button inside the editor to save your HTML file locally. You can also select all (Ctrl+A), copy (Ctrl+C), and paste into your own code editor or file.
Does it support CSS and JavaScript?
Yes — you can write full HTML pages including embedded CSS in <style> tags and JavaScript in <script> tags. The live preview renders the full page including your styles and scripts.
Is my code saved between sessions?
Code is stored in your browser's local storage while the editor is open. If you close the browser or tab, your work may not be preserved. Always save your work using the download button before closing.
Can I use it to test email templates?
Yes — paste your HTML email code into the editor and preview it. Keep in mind that email clients support a limited subset of CSS, so the preview (which uses a full browser) may look different from how the email renders in Gmail or Outlook.