Spanning Tools for Mac analyzes, reports, and fixes dozens of problems with contacts and calendars in OS X—problems ranging from the obvious, such as duplicated calendar events, to the subtle, such as invalid calendar dates and poorly formatted contact names.

If you're like us, your calendar is how you manage your life. And that means that bad data can mean a really bad day—or worse. Calendar Cleaner removes duplicates, finds subtle problems with your events, and keeps everything clean as a whistle.
Your contacts are the center of your personal social network, and as such are often synchronized among your Mac, your iPhone, and many other apps, services, and devices. Contacts Cleaner finds and fixes the little problems that can creep in while you're not looking.

Feedback from Users of Spanning Tools for Mac

"Very nice tools! Great scan speed for iCal events!" —Jochen W.

"I adore Calendar Cleaner, by the way. It saved me the trouble of manually filtering through nearly 30,000 calendar records, dating back to 1999, to remove about 3,000 duplicate records that had been created by sync misfires over the last 10 years of Palm and Mac OS syncing." —Don N.

"Calendar Cleaner: LOVE LOVE LOVE this tool. It's saved me hours of headache and heartache." —Rich S.

"Just dropping by to say good job! it works great! I've been having some issues with a self-duplicating calendar event and it cleaned it up! Syncing now is normal and trouble free." —David C.


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Requires Mac OS X

  • Requires OS X 10.7 "Lion" or later.

    Mac and the Mac logo are trademarks of Apple Computer, Inc., registered in the U.S. and other countries.

For Windows Users

  • Spanning Tools for Mac requires
    Mac OS X. For our Windows friends, we recommend you get a Mac!


  • Copyright ©2006-2012
    Spanning Sync, Inc.
    All rights reserved.

    Spanning Tools, the Spanning Tools logo, Calendar Cleaner, and Contacts Cleaner are trademarks of Spanning Sync, Inc.