Caffeine is a tiny program that puts an icon in the right side of your menubar. Click it to prevent your Mac from automatically going to sleep, dimming the screen or starting screen savers. Click it again to go back. Hold down the Command key while clicking to show the menu.
The menu now has a sub-menu for deactivating Caffeine automatically after a number of minutes.
What's New
Version 1.1.1:
Fixed a bug where Caffeine was effective when another user account was active
Yep, I played with the options, tweaked settings... It seemed as if it was semi-functional in that the screen did not appear to go to sleep but it wouldn't show up as another computer on my network, but would the second I woke it up properly.
In the end I settled on using NoSleep, which might not be as feature-rich as this app bug actually works for me.
Okay, maybe you're right. Sorry I'm not sure. I haven't tested it in that way.
I usually have my mac set never to sleep in the General Preferences and have been using this app just to prevent the display from sleeping. So maybe I'm not a typical user, you made me remember.
And Caffeine actually does not allow a MacBook to work in so-called clamshell mode if that's the thing wanted.
Essentially, that's what I intended. Luckily, NoSleep appears to work just fine for my purposes. It was getting to the point where I was just going to install Ubuntu's server edition over Lion and just run that as it doesn't have sleep functionality.
So for anyone who wants to stop their Mac from falling asleep, this might do that but if you want to run it in clamshell mode without an external display this won't help you.
Very useful for preventing sleep while giving presentations, watching videos or downloading large files. It does exactly what I want and does it well with a nice simple user interface and no problems.
I love this program! My Mac is plugged in 99% of the time when I am not travelling. With one click, Caffeine allows me to keep my Mac alive and disable the power-saving options. Very useful when background tasks (like Picasa photo uploads) are running, or when I don't want the hassle of waking the Mac back up from sleep.
This is a great program. I like it a lot !
I would like to have an option, so that it prevents the CPU from sleeping (programs keep running) but lets the screen sleep (LCD turns off).
The instructions on how to show the menu is both on our web site and is displayed the first time you start Caffeine. Holding down either the command key or control key while clicking the menu bar icon will do.
Thanks. I overlooked this info on the MU site, but didn't recall it on the developer site.
It's not clear to this user that the command+click would allow you to QUIT the app - this could be indicated more clearly somewhere. And although I probably read the notice upon install a few weeks back- I didn't recall it.
I also am not able to get the menu to appear with a right click on my logitech mouse, which usually is the same as control+click in most of my applications and the finder. I'm unsure if this is a problem with my mouse, or Caffeine.
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Caffeine is a tiny program that puts an icon in the right side of your menubar. Click it to prevent your Mac from automatically going to sleep, dimming the screen or starting screen savers. Click it again to go back. Hold down the Command key while clicking to show the menu.
The menu now has a sub-menu for deactivating Caffeine automatically after a number of minutes.
+3
sebthedev reviewed on 25 Apr 2012
-2
+126
Doug S. reviewed on 14 Apr 2012
+1
Have you right-clicked (or command+click) the Caffeine icon and set the options as you would like it to do anything?
+126
In the end I settled on using NoSleep, which might not be as feature-rich as this app bug actually works for me.
+1
I usually have my mac set never to sleep in the General Preferences and have been using this app just to prevent the display from sleeping. So maybe I'm not a typical user, you made me remember.
And Caffeine actually does not allow a MacBook to work in so-called clamshell mode if that's the thing wanted.
+126
So for anyone who wants to stop their Mac from falling asleep, this might do that but if you want to run it in clamshell mode without an external display this won't help you.
+52
Reowen reviewed on 11 Apr 2012
-1
crosstrainer reviewed on 09 Mar 2012
Free, simple, and easy to use.
+19
zuluwarrior reviewed on 27 Jan 2012
-2
-1
dieselman reviewed on 05 Nov 2011
+1
+8
Rshorts reviewed on 29 Apr 2011
Just perfect.
+5
iminlalaland reviewed on 13 Jan 2011
+141
I would like to have an option, so that it prevents the CPU from sleeping (programs keep running) but lets the screen sleep (LCD turns off).
+1
Zaraxul reviewed on 13 Oct 2010
+1
+26
+126
+14
No info I can see on the developer site on how to update, AFAIK.
+1
That should help you with just unzipping and replacing 1.03 over the 1.02.
Best wishes
+14
This app is very helpful and works well. I hope the developer will post instructions for other users wanting to upgrade.
The instructions on how to show the menu is both on our web site and is displayed the first time you start Caffeine. Holding down either the command key or control key while clicking the menu bar icon will do.
Thanks,
Tomas, Lighthead Software
+14
It's not clear to this user that the command+click would allow you to QUIT the app - this could be indicated more clearly somewhere. And although I probably read the notice upon install a few weeks back- I didn't recall it.
I also am not able to get the menu to appear with a right click on my logitech mouse, which usually is the same as control+click in most of my applications and the finder. I'm unsure if this is a problem with my mouse, or Caffeine.
In any case thanks again for your help.
mlarroyd rated on 11 May 2012
ramon7 rated on 30 Apr 2012
Thoughtful rated on 01 Dec 2011
+23
zitronenmelissa rated on 18 Jun 2011
+162
Alexrom1000 rated on 30 May 2011
Adagio rated on 18 May 2011
Saleem Al-Zayat rated on 25 Mar 2011
+4
John-A.-Zoidberg rated on 02 Feb 2011
Monstrum rated on 22 Jan 2011
StevenSimpson rated on 24 Dec 2010