What does this tool do?
It uses the Screen Wake Lock API built into modern browsers to prevent your device from dimming or locking the screen while the timer is running.
Does it work on my phone?
Yes, it works on Android phones with Chrome or Edge, and on iPhones with Safari 16.4 or later. Older browsers may not support it.
Does this drain my battery?
It keeps your screen on, which does use more battery than letting it sleep. Use the timer to limit the duration and save power.
Is my data safe?
Absolutely. Everything runs locally in your browser. No data is sent to any server. Usage stats are stored in your browser's localStorage.
Why doesn't it work in my browser?
The Screen Wake Lock API requires Chrome 84+, Edge 84+, Firefox 126+, or Safari 16.4+. If you see an unsupported message, try updating your browser.
Can I use it without a timer?
Choose a long custom duration (up to 8 hours) if you want extended awake time. The timer ensures the lock is released automatically.