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CronniX is an Aqua frontend to the powerful Unix tool "cron". Cron is a Unix system service that allows scheduled execution of scripts, programs, applications - in short anything that can be started from the command line. This includes OSX applications and AppleScripts.

What's New

Version 3.0.2:
  • Really a Universal binary
  • Fixed homepage URL (Help menu)


Mac OS X 10.4 or later

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CronniX User Discussion

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ylluminate Member IconComment+285

Would love to see this brought back on Lion with system cron support. Lingon just doesn't cut it for us now with Lingon 3 only working for user and the author doesn't seem to have plans for a System Lingon, which is unfortunate.

Reply0 replies
Version 3.0.2
ModStereo Member IconReview+12

Perfect program, does what it says! Only issue which has been noted below is that you cant edit the system crontabs, only user tabs. But for our purposes, this is not a problem.


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Version 3.0.2
Likos Member IconComment+26

Cronnix is not fully compatible with Lion. You can modify user crontabs but not system ones. (error: You can't open the application sucrontab because PowerPC applications are no longer supported.)

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Version 3.0.2
Boise-Ed Member IconComment+5

I've just upgraded to Snow Leopard (10.6.8), and my longtime cron settings aren't working anymore. Looking for an answer, I found this somewhere: "cron has been replaced by launchd since 10.4." Does that mean cron (and by extension CronniX) is now obsolete with the new OS version? If so, is there an app that works likewise with launchd?

Reply1 reply
Version 3.0.2

Apple wants everyone to switch to launchd, but cron is still supported.

WordWeaver Member IconReview+161

Thank-you very much for this program. Despite my many years of using Macintosh computers, I have zero experience with working with crontabs. I had to figure out how to automate backing up my WordPress blog using the XCloner WP plug-in, and your program was exactly what I needed. Well done!

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Version 3.0.2
Fulmar2 Member IconReview+60

This app really helped me out a lot. I know that it is possible to set this up using terminal and the command line... but it is SOO much easier to do it (and get it right) using this app. Sincere kudos to the developer. Thanks!

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Version 3.0.2
Ryansebiz Member IconComment+33

The MacUpdate (and all other download sites) link to the dmg is dead. I went to Sven's site and emailed him that the software was no longer available. Surprisingly he replied back right away saying he uploaded the dmg to http://code.google.com/p/cronnix/downloads/list

Thank you Sven!

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Version 3.0.2
Shmk Member IconReview+236

This is awesome, easiest way to schedule applications and I don't have to make a big mess in iCal. Thanks

Reply2 replies
Version 3.0.2

shmk, I can't access the website, would you please email version 3.0.2 to me?

Thanks a bunch.



timcrawf Member IconComment+10

I have been having a problem using cronnix to edit the "system" crontab. I would choose "Open System Crontab", but nothing would happen. I have searched all over and finally found the answer here

almost at the end of the page. The fix is that if the file /etc/crontab does not exist then choosing this menu item does not work. So the fix is to create it. In the terminal type.
sudo touch /etc/crontab

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Version 3.0.2
buegelfrei Member IconReview+13

Lovely little interface. My (almost hourly) backup schedule would have made a big mess in (slow) iCal, but CronniX made it fast and neat to set up. Although CronniX doesn't have yet have a functioning "intervals" scheduling tab, this was not a real hindrance. Events can be duplicated with a simple command-D, and a series of new times can be entered in seconds. Additionally, the help file includes a few pertinent Terminal tricks, and an email of thanks to the developer yielded a quick response from Sven with a couple shortcut tricks for my scheduling needs.

It's free, and it gets the job done. Works fine on OSX 10.4.8 on my 2.0 GHz DP G5 PPC.

Those looking for a GUI for rescheduling the system maintenance scripts in Tiger should probably look to the free OnyX.

Reply0 replies
Version 3.0.2
user icon+0
Version 3.0.2
> 5 16


Current Version (3.x)


Downloads 73,594
Version Downloads 52,731
Type Utilities / System
License Free
Date 21 Jun 2006
Platform OS X / PPC 32 / Intel 32
Price Free
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