This tool uses the browser's Wake Lock API to prevent your device screen from automatically going to sleep — no app installation needed, and no system settings to change. Toggle it on from the webpage and the screen stays awake until you turn it off or close the tab.
Why the screen can still turn off even when this is active
The Wake Lock API ties the lock to the visibility of the current browser tab. As soon as you switch to a different tab, minimize the browser, or switch to another app, the operating system releases the lock automatically. The screen will then follow its normal sleep timer again. Keeping this tab in the foreground is the only requirement.
Which browsers and devices support this
- iOS: Safari 16.4 or later
- Android: Chrome, Edge, or other Chromium-based browsers
- Desktop: Chrome 84 or later, Edge
Firefox does not support the Wake Lock API. Some browsers built on alternative engines may also lack support. If your browser is incompatible, the tool will display an unsupported message rather than silently failing.
Power consumption
Keeping the screen on accelerates battery drain, especially on mobile. On some devices, the system's battery-saver mode overrides the wake lock — the screen may still turn off even with the lock active. If that happens, disabling power-save mode for the browser or the session is the fix.
What this tool does not do
It keeps the screen on only while this tab is open and visible. It does not disable the system lock screen password, modify sleep settings in a way that persists after the tab closes, or affect other apps. Refreshing or closing the tab releases the lock immediately, with no residual effect.