Caffeine App Mac Free Download

Caffeine - 1.1.1 for Mac Mobile, Tablet, PC Devices. Application Caffeine (Utilities) was released by Zhorn Software in Utilities collection, and available to download from GetSoftwareOnly.com. Download the latest version of Caffeinated for Mac - Prevents your mac from going to sleep. Read 0 user reviews of Caffeinated on MacUpdate. Command line switches added to terminate the app after x minutes, disable the app after x minutes, and enable or disable the currently running instance of the app. V1.20 - March 2008. Command line switches added to set the interval and to start disabled. Download Caffeine (x86 and x64).

  1. Download Caffeine App
  2. Caffeine App Mac

Caffeine is a portable free tool which can help to prevent your screensaver activating, or your PC going to sleep. Just launch the program and it simulates a keypress every 59 seconds, so your machine thinks you're still working at the keyboard, and won't shut down.

Caffeine adds an icon to the system tray where you can control how it works. Right-click and you're able to turn the program on for only an hour, for example. It will then keep your system awake for that time, convenient if you're not working at the keyboard but need it to remain active (you're giving a presentation, perhaps), before returning to normal.

The program provides several command line switches to control how it works. There are options to choose which keypress is simulated, for instance, and how often it's repeated. You can choose whether it's active on launch, or how long it will be active. You get to decide whether Caffeine works from your system tray, or a taskbar button, and there's even an option to prevent sleep, but allow the screensaver to start.

Conveniently, all this comes packaged in a single tiny executable (a mere 40KB) which, the author claims, runs on anything from Windows XP upwards.

Verdict:
Caffeine App Mac Free Download

An effective way to gain a little extra control over your PC power settings.

Prevent your computer from going to sleep

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 you're still working at the keyboard, so won't lock the screen or activate the screensaver.

The icon is shown above - it's the leftmost one in the task tray, and this is all you see. Double-clicking the icon empties the coffee pot (that's what the icon is) and temporarily disables the program. Double-clicking it again refills the pot, and will keep your machine awake.

By default the app starts enabled, and works every 59 seconds. There are some command line switches you can use to alter this behaviour:

  • xx - where xx is a number which sets the number of seconds between simulated keypresses. This must be the first text on the commandline
  • -startoff - application starts disabled.
  • -exitafter:xx - application will terminate after xx minutes
  • -activefor:xx - application will become inactive after xx minutes
  • -inactivefor:xx - application will become active after xx minutes
  • -appexit - terminates current running instance of application
  • -appon - makes the current running instance of the application active
  • -appoff - makes the current running instance of the application inactive
  • -apptoggle - toggles the running state of the current running instance of the application
  • -apptoggleshowdlg - toggles the running state, and shows dialog
  • -replace - closes the current running instance, replacing it
  • -noicon - does not show a task tray icon
  • -useshift - simulate the shift key instead of F15
  • -showdlg - shows a dialog indicating whether caffeine is active
  • -ontaskbar - show a task bar button (use with -showdlg)
  • -allowss - prevent sleep, but allow the screensaver to start
  • -key:xx - simulate using virtual key code xx
    Note: the codes on the linked page are in Hex, convert them to decimal for use with this parameter
  • -keypress - simulate a full key press, not just a key up event
  • -oldicons - use more colourful tray icons
  • -darkicons - use icons which work better for dark-on-light colour schemes
  • -watchwindow:xx - active only when a window with xx in the title is found
  • -activehours:........xxxxxxxx........ - put 24 . or x characters - which indicate from hour 0 to hour 23 of the day. Caffeine will be active only in hours with an x

Compatibility

Caffeine works by simulating an F15 key up event every 59 seconds. Of all the key presses available, F15 is probably the least intrusive, and least likely to interfere with your work.

However, Caffeine might interfere with some apps:

  • PowerPoint uses the F15 keypress to pause video in a slide
  • Google Docs/Sheets
  • Smartsheet
  • Terminal emulation, e.g. Putty

If you think any of these might cause you a problem, set the -useshift command line parameter.

Video

Caffeine user humancar2n has put together a short YouTube video showing how the app works.

Caffeine

Mac version

Do you need this functionality on your Mac? Lighthead Software have written a separate app, also named Caffeine, which can help you out.

Versions

v1.90 - October 2020

-darkicons command line option added

-activehours command line option added

Download

Tooltip replaced with a new one which works more reliably

Menu appearance updated

v1.81 - May 2020

Bug with the -watchwindow command line fixed

v1.80 - January 2020

v1.64 - September 2017

Option for old icons added, 'cos not everyone likes the new ones

v1.63 - February 2017

Icons updated slightly to show up better on a white background.

v1.62 - April 2016

New icons, designed by Rubén Gómez Radioboy

v1.61 - October 2015

Download Caffeine App

Fixed bug with app not going active/inactive correctly when a timed period elapsed

v1.60 - July 2013

New command line options:

  • -allowss
  • -ontaskbar
  • -apptoggleshowdlg
  • -key:xx
  • -keypress

Added menu items to go Active/Inactive

Caffeine

Type in About box corrected

-apptoggle will re-show the dialog if it was originally shown

v1.50 - November 2010

New command line options:

  • -inactivefor
  • -showdlg
  • -apptoggle
Caffeine

Simulated keypress changed from right context menu key to F15 as this is likely to be even less intrusive.

v1.40 - July 2009

New command line options:

  • -replace
  • -noicon
  • -useshift

Hovering over the tray icon now shows the status of the app

v1.35 - May 2009

Simulated keypress changed from shift to the right context menu key (at the suggestion of Kevin Kleinfelter) as this is likely to be less intrusive.

v1.30 - February 2009

Command line switches added to terminate the app after x minutes, disable the app after x minutes, and enable or disable the currently running instance of the app

v1.20 - March 2008

Caffeine App Mac

Command line switches added to set the interval and to start disabled

Download Caffeine (x86 and x64)