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Disk Diag scans your home folder for useless files and removes them to free up disk space with only a few clicks.


  • Modular Architecture: seven built-in modules for the most efficient cleanup functions
  • Smart Gauge: overview the details of your disk usage at a glance
  • Fast Cleanup: quickly remove unneeded files
  • Clean up Application Caches and Logs
  • Empty Downloads and Mail Downloads folder
  • Erase items in the Trash
  • Remove Browser Data for selected browsers
  • Find and remove large files within more...

What's New

Version 1.2:
  • Downloads module disabled by default
  • Minor bug fixes


  • OS X 10.8 or later

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Disk Diag User Discussion

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Skapplin Member IconReview+28

This is pretty much worth what the author is presently charging. I doesn't do what other available software already does, the author intends to charge money for it, and it's nothing but advertising.

Reply0 replies
Version 1.0
Hal2007 Member IconComment+214

Asks me to choose my home folder on startup. But I can't do it because all is greyed out.

What gives...?!

Reply3 replies
Version 1.0
Rocky Sand Studio (Developer)

This seems like a rare bug of version 1.0, please contact us for mor details: http://rockysandstudio.com/support#form


Thanks for your reply.

However, it doesn't seem so rare. It happens on all three machines I tried on.

Can you explain, why should I contact you? Frankly, I'd prefer having a bug-free version released that I can actually use.


Newest version cures my problems.

Cudos to the dev for making it possible.

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Current Version (1.x)


Downloads 14,661
Version Downloads 10,247
Date 20 Dec 2013
Platform Intel 64 / OS X
Price Free