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OnyX is a multifunctional utility for OS X. It allows you to verify the startup disk and the structure of its System files, to run miscellaneous tasks of system maintenance, to configure the hidden parameters of the Finder, Dock, Spotlight, and of some of Apple's own applications, to delete caches, to remove a certain number of files and folders that may become cumbersome, and more.

What's New

Version 3.0.0:
  • Bug when checking the used hard drive space corrected
  • The settings for some browsers extensions are not reset anymore
  • Deleting the hidden function obsolete of App Store application
  • Minor modifications


  • OS X 10.10 (support for 10.11 coming soon)

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5 917


Current Version (3.x)


Downloads 4,496,902
Version Downloads 21,883
License Free
Date 22 Sep 2015
Platform Intel 64 / OS X
Price Free
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