Android
Keep your Android screen on, from the browser.
Works in Chrome for Android — tap start, lay your phone down for a recipe, a QR code, or anything else that needs the screen visible without you touching it.
Pick a duration and hit start.
Duration
Android's own screen timeout setting
Android lets you set a longer global screen timeout under Settings → Display → Screen timeout (up to 30 minutes on most phones, sometimes longer on some manufacturers' skins). That's a permanent change affecting every app, though — this tool is for when you want the screen held open just for this one tab, right now, without changing a system setting you'd have to remember to undo.
There's also a developer-only "Stay awake while charging" toggle (under Developer Options), but that only applies while plugged in and isn't meant for everyday use.
One honest caveat: Android's power management is more aggressive than desktop operating systems about suspending background tabs and activity to save battery, especially on some manufacturers' custom Android builds. If the lock still kicks in after switching apps, that's the OS reclaiming resources from a backgrounded browser — same underlying limit as switching tabs on desktop, just enforced a bit more eagerly on phones.
FAQ
- Does this work in Samsung Internet or other Android browsers?
- Any Android browser built on a recent Chromium engine (Samsung Internet, Edge, Brave, Opera) supports the same underlying API — Chrome for Android is just the most common.
- Will this drain my battery faster?
- Keeping a display on always uses more power than letting it sleep — that's physics, not this tool. It's the same tradeoff as manually setting a longer screen timeout.