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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 3.2.6:
  • Deleting the logs improved
  • Deleting the applications cache improved
  • Bug corrected that occurred when revealing the OnyX log in the Finder
  • Bug corrected that occurred when reverting the defaults settings of the Automation pane
  • [New option] Show/hide the Other... button in the login window
  • [New option] Show/Hide the Shutdown dialog


  • macOS 10.12 or later

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4.6 998


Current Version (3.x)


Downloads 4,855,953
Version Downloads 6,149
License Free
Date 09 Jul 2017
Platform Intel 64 / OS X
Price Free
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