Workrave - Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI).

f.lux - f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.

stretchly - break time reminder app

CareUEyes - CareUEyes is an eye protection software for windows that comes with blue light filter, screen dimmer, and break reminder

Eye Break - eyeBreak is a tiny app designed to sit in the Windows tray and provide a non-ignorable message...

Dimmer - A very small and free utility for Windows to reduce brightness on LCD/TFT screens.