HTML Viewer — Free Online HTML Editor with Live Preview
HTML Viewer is a free, browser-based HTML editor that lets you write, edit, and preview HTML, CSS, and JavaScript code in real-time. No installation or signup required.
Features
- Live preview with instant rendering
- Multi-file project editor with folder structure
- Responsive design testing (Desktop, Tablet, Mobile)
- Import and export projects as HTML or ZIP
- Monaco Editor with syntax highlighting and autocomplete
- Dark and Light theme support
- Available in English and Spanish
- Works completely offline after initial load
- 100% client-side — your code never leaves your browser
Frequently Asked Questions
Is HTML Viewer free?
Yes, HTML Viewer is completely free. There are no paid plans, registration, or ads.
Is my code stored on any server?
No. All code stays in your browser. HTML Viewer does not send data to any external server.
Can I use it offline?
Yes. Once loaded, the editor works fully offline.
Which browsers are supported?
All modern browsers: Chrome, Firefox, Safari, Edge, and Opera.
Please enable JavaScript to use the HTML Viewer application.