Open HTML File Online - HTML Viewer, Editor & Live Preview
Open and preview HTML files online for free. Edit HTML with real-time live preview, format code, and test web pages safely in your browser.
HTML Viewer
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Editor
Code
Preview
Live Preview
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How to Use HTML Viewer?
Type or paste your HTML code into the editor pane.
The preview pane will update automatically to show the rendered result.
Use the toolbar buttons to Copy, Clear, or Toggle Fullscreen.
Key Features
Real-time Preview
Instantly see how your HTML code renders as you type.
Privacy Focused
Your code never leaves your browser. All processing is done locally.
Responsive Design
Use the split-screen view or go full-screen for a better editing experience.
Frequently Asked Questions
How do I open an HTML file online and preview it?
Paste HTML code or load a file, and the rendered preview updates instantly. This makes quick HTML checks and debugging easy.
Can I test external CSS and JavaScript in this HTML viewer?
Yes. Standard external resources can load in preview when allowed by your browser security policies.