eyeBreak is described as 'tiny app designed to sit in the Windows tray and provide a non-ignorable message reminding you to take a break from what you are working on'. There are more than 25 alternatives to eyeBreak for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and BSD. The best alternative is stretchly, which is both free and Open Source. Other great apps like eyeBreak are Workrave (Free, Open Source), Eyes Relax (Free), Safe Eyes Linux (Free, Open Source) and Eyeleo (Free).
stretchly is cross-platform open source app that reminds you to take breaks when working with computer. By default, it runs in your tray and shows reminder window every 10 minutes, that is open for 20 seconds, containing idea for microbreak.
Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI). The program frequently alerts you to take micro-pauses, rest breaks and restricts you to your daily limit.
It’s an utility that helps avoiding eyes-related problems when working at a computer for several hours. Concentrating your eyesight on a computer screen can cause an eye strain. You can prevent this by taking regular breaks during the work and look at distant objects.
SafeEyes is an application that tries to protect your eyes from eye strain (asthenopia) by reminding you to take breaks while you're working long hours at the computer. It was created as a free and open source Linux alternative for EyeLeo, a Windows-only app.
EyeLeo is a handy PC application that reminds you to take a break for your eyes. Features: Screen blocking long breaks every hour. Short breaks with eye exercises every 10 minutes. Eye exercises shown by an adorable Leopard.
Iris is software which makes monitors healthy for the eyes. With iris you can reduce the blue light emitted from your screen for better sleep, reduce the brightness of your screen without PWM and avoid eye pain.
Save yourself from RSI and eye-strain BreakTimer allows you to set up customizable breaks and will remind you to take them. BreakTimer is free and open source and available for Windows, macOS and Linux.