You can use to verify the startup disk and the structure of its system files

OnyX for Mac

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OnyX 2.8.4

  -  13 MB  -  Freeware
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of OnyX 2.8.4.


For those interested in downloading the most recent release of OnyX for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download OnyX 2.8.4

  • OnyX 2.8.4 Screenshots

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    OnyX 2.8.4 Screenshot 1
  • OnyX 2.8.4 Screenshot 2
  • OnyX 2.8.4 Screenshot 3
  • OnyX 2.8.4 Screenshot 4

What's new in this version:

- Deleting the logs improved
- Deleting the diagnostic reports improved
- Deleting the Cache improved
- Bug corrected when emptying the trash
- Bug corrected in the Info pane
- New option : Delete the contents of the Xcode DerivedData folder from the Cleaning > User pane
- New option : Show/hide the date and the time in the name of screen captures
- New option : Hide the logo in the login window
- System Image Utility application added in the Utilities > Applications pane
- New version of sqlite3
- Removed the Turn on/turn off the interface Leopard style option (obsolete)
- Minor interface modifications
- Help improved

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