OnyX
OnyX is a multifunction utility that you can use to verify the structure of the system files; run miscellaneous maintenance and cleaning tasks; configure parameters in the Finder, Dock, Safari, and some Apple applications; delete caches; remove certain problematic folders and files; 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.
IMPORTANT:
There is a specific version of OnyX for each major version of the operating system.
Use the correct version, and don't try to use a version intended for an earlier operating system.
![](../images/icons/onyx15.png)
OnyX 4.6.5 for macOS Sequoia 15
will be available some days after Apple releases the final version of Sequoia.
Requirements: Intel-based Mac or Mac with Apple silicon using macOS Sequoia 15.
WARNING !! This is a Beta version. It has not yet been fully tested.
Download the Beta version![](../images/icons/onyx14.png)
OnyX 4.6.0 for macOS Sonoma 14
Requirements: Intel-based Mac or Mac with Apple silicon using macOS Sonoma 14.
Released: July 22, 2024.
Old versions
The development of the old versions is discontinued.
The applications are available, but they will be not updated anymore.
![](../images/icons/onyx13.png)
OnyX 4.4.7 for macOS Ventura 13
Requirements: Intel-based Mac or Mac with Apple silicon using macOS Ventura 13.
Download (7.6 MB)![](../images/icons/onyx12.png)
OnyX 4.2.7 for macOS Monterey 12
Requirements: Intel-based Mac or Mac with Apple silicon using macOS Monterey 12.
Download (5.6 MB)![](../images/icons/onyx11.png)
OnyX 4.0.2 for macOS Big Sur 11
Requirements: Intel-based Mac or Mac with Apple silicon using macOS Big Sur 11.
Download (4.9 MB)![](../images/icons/onyx1015.png)
OnyX 3.8.7 for macOS Catalina 10.15
Requirements: Intel-based Mac using macOS Catalina 10.15.
Download (4.7 MB)![](../images/icons/onyx1014.png)
OnyX 3.6.8 for macOS Mojave 10.14
Requirements: Intel-based Mac using macOS Mojave 10.14.
Download (5.6 MB)![](../images/icons/onyx1013.png)
OnyX 3.4.9 for macOS High Sierra 10.13
Requirements: Intel-based Mac using macOS High Sierra 10.13.
Download (8.3 MB)![](../images/icons/onyx1012.png)
OnyX 3.3.1 for macOS Sierra 10.12
Requirements: Intel-based Mac using macOS Sierra 10.12.
Download (30.8 MB)![](../images/icons/onyx1011.png)
OnyX 3.1.9 for OS X El Capitan 10.11
Requirements: Intel-based Mac using OS X El Capitan 10.11.
Download (33.1 MB)![](../images/icons/onyx1010.png)
OnyX 3.0.2 for OS X Yosemite 10.10
Requirements: Intel-based Mac using OS X Yosemite 10.10.
Download (29.6 MB)![](../images/icons/onyx109.png)
OnyX 2.8.9 for OS X Mavericks 10.9
Requirements: Intel-based Mac using OS X Mavericks 10.9.
Download (19.6 MB)![](../images/icons/onyx108.png)
OnyX 2.7.4 for OS X Mountain Lion 10.8
Requirements: Intel-based Mac using OS X Mountain Lion 10.8.
Download (23.4 MB)![](../images/icons/onyx107.png)
![](../images/icons/onyx106.png)
OnyX 2.4.0 for Mac OS X Snow Leopard 10.6
Requirements: Intel-based Mac using Mac OS X Snow Leopard 10.6.
Download (22 MB)![](../images/icons/onyx105.png)
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.
Download (20.5 MB)![](../images/icons/onyx104.png)
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.
Download (9 MB)![](../images/icons/onyx103.png)
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.
Download (2.9 MB)![](../images/icons/onyx102.png)
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.
Download (1.2 MB)