OnyX 3.1 for OS X 10.11 El Capitan

OnyX 3.1 – Maintenance and optimization tool.

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.


First, always update your system and the applications found here.

If you have a problem with one of these applications, you can find an answer in the help. (In the application, choose the Help menu, or click the Help button [which looks like a question mark].)

If you have another problem, contact me via email by clicking Contact in the navigation bar at the top of the pages, or from the application (for example, OnyX menu > Provide OnyX Feedback).

Please, report the problems with the latest version for Yosemite only.
The development of the old versions is discontinued, and the applications will be not updated anymore.

What’s New

Version 3.1.0:

  • New version for OS X 10.11 El Capitan only


Macintosh Intel computer running OS X 10.11 (El Capitan).
Size: 31.2 MB



OnyX 3.1 Mac OS X | 30 MB

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Problem with this app? -> CLICK HERE


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