Mac maintenance tool and optimizer
Older versions of OnyX
Rolla-V Onyx: Dies. Explanation Advantages. OnyX 3.9.3. Minor modifications made. OnyX 3.9.2. Improved compatibility with the Apple M1 chip. Issue corrected that occurred with the 'Mailboxes in Mail' option in the Maintenance pane. OnyX 3.9.1. Issue corrected that occurred with the last update of macOS Big Sur. OnyX 3.9.0. New version for macOS Big Sur only.
It's not uncommon for the latest version of an app to cause problems when installed on older smartphones. Sometimes newer versions of apps may not work with your device due to system incompatibilities. Until the app developer has fixed the problem, try using an older version of the app. If you need a rollback of OnyX, check out the app's version history on Uptodown. It includes all the file versions available to download off Uptodown for that app. Download rollbacks of OnyX for Mac. Any version of OnyX distributed on Uptodown is completely virus-free and free to download at no cost.
OnyX
OnyX is a multifunction utility that you can use to verify the structure of the system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the Finder, Dock, Safari, and some Apple applications, to delete caches, to remove certain problematic folders and files, to rebuild various databases and indexes, and more.
OnyX is a reliable application which provides a clean interface to many tasks that would otherwise require complex commands to be typed using a command-line interface.
WARNING:
There is a specific version of OnyX for each major version of the operating system.
Use the specific version, and don't try to use a non-compatible version.
Onyx 3.9.3 Pc
OnyX 3.9.6 for macOS Big Sur 11
Requirements: Intel-based Mac or Apple M1-based Mac using macOS Big Sur 11.1 or later.
OnyX 3.8.7 for macOS Catalina 10.15
Requirements: Intel-based Mac using macOS Catalina 10.15.
OnyX 3.6.8 for macOS Mojave 10.14
Requirements: Intel-based Mac using macOS Mojave 10.14.
OnyX 3.4.9 for macOS High Sierra 10.13
Requirements: Intel-based Mac using macOS High Sierra 10.13.
OnyX 3.3.1 for macOS Sierra 10.12
Requirements: Intel-based Mac using macOS Sierra 10.12.
OnyX 3.1.9 for OS X El Capitan 10.11
Requirements: Intel-based Mac using OS X El Capitan 10.11.
OnyX 3.0.2 for OS X Yosemite 10.10
Requirements: Intel-based Mac using OS X Yosemite 10.10.
Onyx 3.5.3 For Macos Mojave 10.14
OnyX 2.8.9 for OS X Mavericks 10.9
Requirements: Intel-based Mac using OS X Mavericks 10.9.
OnyX 2.7.4 for OS X Mountain Lion 10.8
Requirements: Intel-based Mac using OS X Mountain Lion 10.8.
OnyX 2.4.8 for OS X Lion 10.7
Requirements: Intel-based Mac using OS X Lion 10.7.
OnyX 2.4.0 for Mac OS X Snow Leopard 10.6
Requirements: Intel-based Mac using Mac OS X Snow Leopard 10.6.
OnyX 2.0.6 for Mac OS X Leopard 10.5
Requirements: PowerPC-based Mac or Intel-based Mac using Mac OS X Leopard 10.5. OnyX only runs from an administrator account.
OnyX 1.8.6 for Mac OS X Tiger 10.4
Requirements: PowerPC-based Mac or Intel-based Mac using Mac OS X Tiger 10.4. OnyX only runs from an administrator account.
OnyX 1.5.3 for Mac OS X Panther 10.3
Requirements: PowerPC-based Mac using Mac OS X Panther 10.3 with BSD subsystem. OnyX only runs from an administrator account.
OnyX 1.3.1 for Mac OS X Jaguar 10.2
Requirements: PowerPC-based Mac using Mac OS X Jaguar 10.2 with BSD subsystem. OnyX only runs from an administrator account.