Amphetamine is a little app that lives in your menu bar which can effortlessly override your energy saver settings and keep your Mac awake.
United States
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SleepTime Alternatives
SleepTime is described as '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 choose' and is an app. There are more than 25 alternatives to SleepTime for a variety of platforms, including Mac, Windows, Android, Linux and Flathub apps. The best SleepTime alternative is Amphetamine, which is free. Other great apps like SleepTime are Stimulator, Caffeine for Mac, NeverNap and Caffeine for Linux.
Alternatives list
52 Amphetamine alternatives
This is a simple app that prevents the desktop environment (DE) from sleeping while its on. It should work regardless of the used DE thanks to the Inhibit portal.
53 Caffeine for Mac alternativesCaffeine 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.
NeverNap prevents your Mac from sleeping or activating the screensaver. For 5 minutes or indefinitely. Perfect for presentations or long processes.
36 Caffeine for Linux alternativesInspired 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.
KeepOn allows you to keep your device's screen on for the desired duration and also allows you to return to the default settings automaticaly when the screen turns off.
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39 Don't Sleep alternativesDon't Sleep is a small portable program to prevent system shutdown, Standby, Hibernate, Turn Off and Restart.
Use Mac with external monitors with lid closed even when you are on battery power. Play music, airplay movies, download/upload lid closed. Most modern and up to date app.
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"Don't Go to Sleep Please" prevents sleep mode on the Mac until applications or processes are done.
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Annoyed by the display getting dim when you're reading or watching something? What if the computer could “see and hear” you?
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When it's not possible to change the screensaver settings in your Windows environment, then it's almost impossible to show things on your screen for a longer period without activating the screensaver.
Clapet is a utility that aims to improve clamshell mode on your Macbook by automatically managing sleep when an external display is detected.
Netherlands
EU
Germany
does the opposite. Please sleep makes sure the mac sleeps...