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OnyX is a multifunction utility that you can use to verify the startup disk and the structure of its system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the Finder, Dock, Safari, and some of Apple's applications, to delete caches, to remove certain problematic folders and files, to rebuild various databases and indexes, and more.

What's New

Version 3.1.8:
  • Built with Xcode version 8
  • Deleting the system archived logs improved
  • Deleting the Internet cache improved
  • Deleting the cookies improved
  • New option to correct the localization of folders' names
  • New option: Turn on/Turn off the graphic effect when showing Launchpad
  • New option: Turn on/Turn off the graphic effect when hiding


  • OS X 10.11

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4.8 980


Current Version (3.x)


Downloads 4,743,017
Version Downloads 11,959
License Free
Date 21 Sep 2016
Platform Intel 64 / OS X
Price Free
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