What is Fullscreen Mode?

Fullscreen Mode gives you a one-click button to enter and exit fullscreen in your current tab. Handy for presentations, reading, or distraction-free focus.

Click once and the page calls the standard Fullscreen API to expand to fill your monitor, hiding tab strips, taskbars, and address bars. Pick a backdrop colour from the preset palette to set the mood — pure black for cinema, white for medical or design reviews, navy for presentations. Press Escape any time to drop back to the normal window.

How to use

1. Step 1 — Click the 'Enter Fullscreen' button to make the page fill your entire screen.
2. Step 2 — Press Escape or click 'Exit Fullscreen' to return to normal view.
3. Step 3 — Use the optional background color picker to set a custom backdrop for presentations.

When to use

• Running a quick demo or pitch where you don't want toolbars stealing attention.
• Reading long-form articles on a laptop without sidebar or tab clutter in your peripheral vision.
• Setting up a kiosk screen at an event so visitors only see the content you've chosen.

Result

Click fullscreen, pick a dark background, and present your slides with no toolbars in the way.

FAQ

Why does the browser ask for permission before going fullscreen?

Browsers require an explicit user gesture (a click or keypress) before triggering fullscreen, to prevent pages from hijacking the screen unannounced. Some browsers add a one-time confirmation dialog the first time you use the feature on a site.

How do I exit fullscreen?

Press Escape (Esc). That keystroke is wired into the browser itself, so it always works even if a page misbehaves. You can also use the exit button in the panel, or press F11 on Windows and Linux to toggle the mode.

Why does fullscreen not work in some environments?

Sandboxed iframes, embedded mobile previews, and a few enterprise-locked browsers disable the Fullscreen API for security reasons. The tool detects that case and shows a «Not Supported» badge instead of throwing an error.

Can the page run any code while fullscreen?

The page operates normally; the only difference is that the browser chrome and OS bars are hidden. Keyboard events still flow to the page, mouse interaction works, and any video or canvas keeps rendering at the new viewport size.

Does fullscreen change my screen resolution?

No. The Fullscreen API only stretches the page to cover the existing monitor area at your current resolution. To change resolution itself you'd have to use your OS display settings or a game's native fullscreen mode, which is a different mechanism.

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