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OptimUSB is an application that keeps your USB and memory cards optimized.

You just need to run OptimUSB before ejecting your USB drive. Any Mac or Windows temporary files get deleted (.DS_Store, .Trashes, .Spotlight-V100, Thumbs.db, etc.).

OptimUSB then automatically ejects your drive. Now, your USB drive is clean, optimized and ready to be removed safely.

Remember that OS X generates temporary files every time you connect your USB drive. Run OptimUSB each time you eject.

When you delete a file from a USB drive on OS X, it is moved to the trash, leaving a blind copy on the USB drive. You could more...

What's New

Version 6.0.1:
  • Ready for OS X 10.9 Mavericks
  • Minor bugs fix
  • New "About" window with "HamacaSoft" name


  • OS X 10.6.6 or later

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5 6


Current Version (6.x)


Downloads 9,791
Version Downloads 588
License Commercial
Date 02 Jan 2014
Platform Intel 64 / OS X
Price $0.99