Caffeine for Mac

Caffeine is a tiny program that puts an icon in the right side of your menu bar. Click it to prevent your Mac from automatically going to sleep, dimming the screen or starting screen savers. Click it again to go back.

Free Mac OS X

Caffeine for Linux

Inspired by the Mac OS X version, Caffeine for Linux is a status bar application able to temporarily prevent the activation of both the screensaver and the "sleep" powersaving mode.

Free Open Source Linux

Amphetamine

Amphetamine is a little app that lives in your menu bar which can effortlessly override your energy saver settings and keep your Mac awake.

Free Mac OS X

Caffeine for Windows

If you have problems with your PC locking or going to sleep, caffeine will keep it awake.

Free Windows

Caffeinated

Caffeinated is a simple utility to prevent your PC from going to sleep. It places an icon near the clock. Click the icon to keep your PC awake. Click it again allow automatic sleep. Caffeinated is heavily inspired by Caffeine for OS X.

Free Open Source Windows

dont sleep

Don't Sleep is a small portable program to prevent system shutdown, Standby, Hibernate, Turn Off and Restart.

Free Windows

Should I Sleep

Annoyed by the display getting dim when you're reading or watching something? What if the computer could “see and hear” you? By using a combination of heuristic...

Commercial Mac OS X

KeepingYouAwake

A Caffeine clone for macOS Yosemite, El Capitan and Sierra (including Dark Mode).

Free Open Source Mac OS X

Sleep Preventer

Prevents your computer from going to sleep, hibernate, dim the display or start the screensaver. Application runs in the system tray when closed. New in version v1.3:...

Free Windows

PleaseSleep

PleaseSleep is a utility software designed for Mac OS X that helps put your computer to sleep when you know some other app is preventing your Mac from going to sleep. ...

Free Mac OS X

NoDoze

NoDoze simulates keyboard/mouse activity to keep the screensaver from activating. Its activity depends on currently running programs. You can use regular expressions or...

Free Open Source Windows

Mouse Jiggler

Mouse Jiggler is a very simple piece of software whose sole function is to "fake" mouse input to Windows, and jiggle the mouse pointer back and forth. ...

Free Open Source Windows

Keep Screen On

Annoyed by your screen turning off when you're using certain apps? Don't change your display settings and waste battery by keeping the screen on when the home...

Free Android

noblackout

Disables screensaver and powersaving while running programms from a choosen directory.

Free Open Source Windows

Coffee_FF

Coffee will keep your computer wide awake while your network is active or a program. Coffee prevents standby when your traffic speed on a selected network adapter is...

Free Open Source Windows

Ginseng

Ginseng is a lightweight desktop app for Windows that will keep your computer awake when active. This is useful for computers which have a screensaver policy that locks...

Free Windows

Sleep No More

A tiny menu bar application, that prevents your Mac from sleeping for a set amount of time.

Free Mac OS X

SleepTime

SleepTime is a light-weight app that lives on your menu bar, letting you easily set a timer to put your Mac on sleep automatically after a specified time period you...

Commercial