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

InsomniaX

It always has been a missing feature: disabling the sleep mode on a Apple Laptop. Who does not want to use it as a big juke-box or go warwalking. The best looking server...

Free Mac OS X

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

NoSleep

NoSleep makes closing of your MacBook lid possible without going to a sleep mode. Now you shouldn't have to plug your mouse and monitor to stay computer awake - just...

Free Open Source Mac OS X

SleepLess

This application is used to prevent the computer from going to sleep without changing system settings can disable sleep with lid closed Safe Sleep (Hibernate) with...

Commercial 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

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

@home

@home is a tiny convenience utility, that knows when you are at home (based on your wireless network name) and prevents your computer from locking the screen. When you...

Free Mac OS X

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

No Sleep

no Sleep prevents your device going in deep sleep mode. It is installed as widget only. So you have to add the 'no Sleep'-widget to a launcherscreen. After...

Free Android

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

InsomniaT

This is a kernel extension and clients that allow the MacBook to disable sleeping when the lid is closed. MOUNTAIN LION IS NOT SUPPORTED

Free Open Source Mac OS X

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