Prevents your PC from sleeping or locking by simulating periodic keypresses
Lightweight and runs silently in the system tray for quick access
Fully customizable through command-line options for advanced users
Supports Windows 7, 8, 10, and 11 (both 32-bit and 64-bit)
Ideal for professionals, presenters, and remote workers needing uninterrupted uptime
Developer's Description
Caffeine is a lightweight, no-fuss utility for Windows that prevents your PC from going idle. By simulating a harmless keypress every 59 seconds, it keeps your system awake—stopping it from sleeping, locking, or launching the screensaver.
Whether you’re downloading large files, attending long virtual meetings, giving a presentation, or just reading something without touching the mouse or keyboard, Caffeine ensures your PC stays active without interruptions.