About HTML Viewer

The ultimate tool for real-time HTML editing and previewing.

Real-Time Rendering

See your changes instantly as you type. No need to refresh or switch windows.

Syntax Highlighting

Professional-grade code editor with syntax highlighting, line numbers, and auto-completion.

Privacy Focused

All code execution happens entirely in your browser. Your code never leaves your device.

Our Mission

At OnlineViewer.org, we believe that web development tools should be accessible, fast, and privacy-conscious. Whether you're a seasoned developer testing a snippet or a student learning your first tags, HTML Viewer provides a clean, distraction-free environment to experiment and build.

Why Use HTML Viewer?

Instant Feedback: The live preview pane updates automatically, helping you catch errors early.
Export Ready: Save your work instantly as a standard .html file.
Responsive Design: Works perfectly on desktop, tablet, and mobile devices.
No Setup Required: No installation, no configuration. Just open and code.