https://wake.lol/ https://wake.lol/ Uses the screen wake lock API if available (or falls back to a hidden video file if unavailable) to keep your screen awake.

https://wake.lol/ https://wake.lol/ Uses the screen wake lock API if available (or falls back to a hidden video file if unavailable) to keep your screen awake. It's cross platform, zero-install tool with offline support which I use to keep my work laptop awake all day.