Jettison
Jettison
1.8.2
4.5
0.0
Jettison free download for Mac

Jettison for Mac1.8.2

12 March 2021

Ejects external disks when you put your Mac to sleep.

What is Jettison for Mac

Jettison automatically ejects external disks from your Mac before your computer goes to sleep.

Simplify those last few seconds when you grab your MacBook and run out the door. Just close the lid and Jettison will automatically eject your backup drive, iPod, or whatever is connected so you can safely unplug it. Say goodbye to "disk was not ejected properly" errors and waking your computer back up because you forgot to eject everything.

Jettison even makes sure that Time Machine backups and file server volumes are properly shut down before they're removed. Your backups and shared files are safe and sound.

And what if you decide not to leave, and open your MacBook back up? Jettison will check to see if your drives are still connected and will mount them back on the Desktop if they're there.

What's new in Jettison

Version 1.8.2:
  • Fixed a case where Jettison could fail to remount ejected drives when the system never fully goes to sleep.
  • Improved handling of Dark Wake events, where the machine temporarily wakes from sleep to perform maintenance or backups.
  • Jettison will only quit Music, Photos and iTunes when the system is going to sleep, not when "Eject External Disks Now" is chosen from its menu. It automatically relaunches the apps when the machine wakes from sleep.
  • Added appsToQuit and processesToTerminate settings in NSUserDefaults to allow additional apps and processes to be quit before ejecting disks.
  • Added NSUserDefaults setting remountOnDarkWake to force Jettison to remount drives during dark wakes as well as full wakes.
  • Fixed cases where Jettison would show eject errors or an empty error message box even after a disk was correctly ejected.
  • Corrected remounting issues that could occur when the system is slow to unlock an encrypted volume.
  • Jettison will not repeatedly try to remount ejected media like CD's and DVD's.
  • Hidden Big Sur volumes (Hardware, xART, Update) are no longer shown.
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0.0
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mrsolguy
mrsolguy
May 19 2020
1.7.5
5.0
May 19 2020
5.0
Version: 1.7.5
Awesome little piece of software. It just works It was driving me crazy because I couldn't eject my external SSD from my 2017 MacBook Pro. Nothing I tried worked, including killing quicklook ui. Bought this thing and it just worked, instantly. And it also tells you exactly what program is holding up the unmount so you can kill it. Best $5 I've spent in a while.
davecoul45
davecoul45
Jan 27 2020
1.7.5
0.0
Jan 27 2020
0.0
Version: 1.7.5
downloaded to my brand new mac 27", that I am having loads of problems with. Fitted two external SSD harddrives, one for a dual boot with High Sierra and the other as a time machine backup. Always forgetting to unmount so thought Jettison was the answer. So closed down the computer with gay abandon only to be told on restart that my external ssd drive had been improperly closed down (or words to that effect). I think the app would be improved by some sort of window showing the drives being unmounted and then a message saying "all done and the computer is now closing down". Having said that there is something wrong I need to make sure I have set it up properly else it isn't working. I am running Catalina, don't know if that is the problem. DaveC
Cowicide
Cowicide
Jun 1 2017
1.5.3
5.0
Jun 1 2017
5.0
Version: 1.5.3
Love Jettison. It's never failed me once.
AppleFriend
AppleFriend
Aug 31 2016
1.5.1
5.0
Aug 31 2016
5.0
Version: 1.5.1
Jettison is very helpful app in modern high-speed world. It's so exhausted to eject any hard drives or other devices from a laptop before you quickly close a lid and need to hurry somewhere. Jettison is the right thing to have in this case. So, download this cheap useful app and enjoy it assistance.
Scott-C-H-
Scott-C-H-
Jun 3 2016
1.5
5.0
Jun 3 2016
5.0
Version: 1.5
Excellent utility. It's one of those utilities that you take for granted until you use someone else's Mac. It runs quietly in the background and does its work while staying out of the way. The developer is also very responsive and helpful.
Dana_Nau
Dana_Nau
Jul 5 2015
1.4.3
5.0
Jul 5 2015
5.0
Version: 1.4.3
I'm not sure whether the hotkeys were added in version 1.3 or 1.4 -- but now that they're there, I'm happy to give Jettison 5 stars. Two detailed comments, in case they might help anyone: (1) For me, Jettison has one *big* advantage over Mountain. When I reawaken my laptop, Jettison is smart enough to remount only the disks that were mounted when I put the machine to sleep. Mountain mounts everything that's connected to the machine -- which in my case includes some backup partitions that I don't want it to mount. (2) There's a glitch in the instructions on the Jettison website for upgrading from the Mac App Store version to Jettison 1.4.3. The website says to start by launching Jettison from the disk image so it can retrieve the registration info from your copy of the Mac App Store version; and that part works fine. But then Jettison will offer to copy itself from the disk image to your Applications folder -- if you tell it to go ahead, it will silently fail. The work-around is to tell Jettison to quit, then remove the old version from the Applications folder, then copy the new version manually.
DanDaf
DanDaf
Feb 25 2015
1.4.3
1.0
Feb 25 2015
1.0
Version: 1.4.3
Used to work OK, with some flaws every now and than. But since a few weeks it's nothing but trouble. Unmounts my 128 GB Nifty (however it says it can't), but fails to remount the disc. Only a restart helps to remount the disc. I am using 1.4.3 on OSX 10.10.2
Tomq
Tomq
Dec 10 2014
1.4.3
5.0
Dec 10 2014
5.0
Version: 1.4.3
Great for my needs: which is to be able to eject and remount my external disks quickly and easily using applescript apps I created. Lots of extra options which may be more useful for others.
Philosopherdog
Philosopherdog
Aug 28 2014
1.4.1
5.0
Aug 28 2014
5.0
Version: 1.4.1
Look in the FAQ if you bought this via the MAS. To do a free update, download from the dev's site. Run the trial version for the dmg with the MAS installed. This copies the license over. Then just copy over the trial version and it will be licensed. The MAS version is pretty broken. So worth doing.
sambear1965
sambear1965
Feb 16 2014
1.3
0.0
Feb 16 2014
0.0
Version: 1.3
Which version is recommended? 1.3 from St.Clair Software website or 1.2.4 from Apple App Store, sorry if this is a dumb question, but why are there two versions available concurrently, Thanks! Running 10.9.1
Ken-Burns-Effect
Ken-Burns-Effect
May 27 2013
1.2.4
0.0
May 27 2013
0.0
Version: 1.2.4
Only costs 1.99 USD in Mac App Store! Just bought it since my Time Machine drive crashed for not ejecting properly.
Drdul
Drdul
Nov 27 2012
1.2.4
0.0
Nov 27 2012
0.0
Version: 1.2.4
For the most part, Jettison works, but it isn't able to eject a disk if it's "in use." As gatovadio notes below, often what qualifies as "in use" is an app that is not actively reading or writing. There's no ability to quit apps, or to run an Applescript that could quit chronic offenders. A lot of the time I end up having to manually eject one of my disks. I'm going to give unDock a try, as the new version offers more features than Jettison, even if it doesn't (yet) trigger on sleep.
Guest
Guest
Mar 31 2012
1.2
0.0
Mar 31 2012
0.0
Version: 1.2
It would be a nice addition to auto quit apps which are in use by some disks (media players or wallpaper switchers which don't even require me to save my work before quitting).
goggles
goggles
Feb 8 2012
1.2
5.0
Feb 8 2012
5.0
Version: 1.2
I had a dismount problem with a external firewire hard drive, when it entered sleep, Jettison eliminated the problem completely, now I can let the computer go to sleep when ever it wants.
Basharar
Basharar
Dec 13 2011
1.2
5.0
Dec 13 2011
5.0
Version: 1.2
lifesaver for me, i was having problems with external drives connected via express card "usb3 and esata" not waking up properly with my macbook pro on time, this is a godsend!
Kitmos
Kitmos
Dec 10 2011
1.2
3.5
Dec 10 2011
3.5
Version: 1.2
This works well as I often forget to unmount my drives before sleep. I wish it would also unmount my iPad but I gather that isn't possible.
$4.95Buy Now
4.5
0.0
App requirements: 
  • Intel 64
  • OS X 10.9.0 or later
License: 
PaidOne-Time Purchase
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