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

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...

• Discontinued The program is no longer updated and seems not to work. Last version, 1.1.1, released in December 2010, can be still downloaded from the official website.

Free Mac

Caffeine for Windows

If you have problems with your PC locking or going to sleep, caffeine will keep it awake. It works by simulating a keypress once every 59 seconds, so your machine thinks...

Free Windows

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...

Free Open Source Linux

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...

• Discontinued The software is discontinued from July 2017 http://semaja2.net/2017/06/thank-you-and-farewell-for-now/

Free Mac

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

Econap

Put your pc to sleep when it's REALLY idle - no interrupted downloads, no wasted energy.

Free Personal $ $ $ 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

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

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

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

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

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

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