Maintenance

Maintenance is an operating system maintenance and cleaning utility for macOS that you can use to perform various computer maintenance tasks, such as rebuilding the databases; deleting application, font, and system caches; and more. It is a reliable application that provides a clean interface to many tasks that would otherwise require complex commands to be typed using a command–line interface.

Since 2003, I have devoted considerable time to developing these applications so that all Mac users can use them freely. If you would like to help, you can make a donation.

IMPORTANT:

There is a specific version of Maintenance for each major operating system version.
Use the correct version, and don’t try to use a non-compatible version of Maintenance.

Maintenance 3.4.2 for macOS Tahoe 26

Requirements: Intel-based Mac or Mac with Apple silicon using macOS Tahoe 26.
Released: October 26, 2025

Old versions

Titanium Software has discontinued developing the old versions and will no longer update them; however, you can still download them.

Maintenance 3.3.6 for macOS Sequoia 15

Requirements: Intel-based Mac or Mac with Apple silicon using macOS Sequoia 15.
Download (4.5 MB)

Maintenance 3.2.0 for macOS Sonoma 14

Requirements: Intel-based Mac or Mac with Apple silicon using macOS Sonoma 14.
Download (4.2 MB)

Maintenance 3.0.2 for macOS Ventura 13

Requirements: Intel-based Mac or Mac with Apple silicon using macOS Ventura 13.
Download (5.9 MB)

Maintenance 2.9.2 for macOS Monterey 12

Requirements: Intel-based Mac or Mac with Apple silicon using macOS Monterey 12.
Download (4.2 MB)

Maintenance 2.8.2 for macOS Big Sur 11

Requirements: Intel-based Mac or Mac with Apple silicon using macOS Big Sur 11.
Download (4.6 MB)

Maintenance 2.7.1 for macOS Catalina 10.15

Requirements: Intel-based Mac using macOS Catalina 10.15.
Download (5.1 MB)

Maintenance 2.5.6 for macOS Mojave 10.14

Requirements: Intel-based Mac using macOS Mojave 10.14.
Download (4.6 MB)

Maintenance 2.4.2 for macOS High Sierra 10.13

Requirements: Intel-based Mac using macOS High Sierra 10.13.
Download (5.3 MB)

Maintenance 2.3.0 for macOS Sierra 10.12

Requirements: Intel-based Mac using macOS Sierra 10.12.
Download (8.6 MB)

Maintenance 2.1.8 for OS X El Capitan 10.11

Requirements: Intel-based Mac using OS X El Capitan 10.11.
Download (9.9 MB)

Maintenance 2.0.7 for OS X Yosemite 10.10

Requirements: Intel-based Mac using OS X Yosemite 10.10.
Download (11.6 MB)

Maintenance 1.9.1 for OS X Mavericks 10.9

Requirements: Intel-based Mac using OS X Mavericks 10.9.
Download (10.3 MB)

Maintenance 1.7.1 for OS X Mountain Lion 10.8

Requirements: Intel-based Mac using OS X Mountain Lion 10.8.
Download (8.3 MB)

Maintenance 1.5.6 for OS X Lion 10.7

Requirements: Intel-based Mac using OS X Lion 10.7.
Download (4.6 MB)

Maintenance 1.4.1 for Mac OS X Snow Leopard 10.6

Requirements: Intel-based Mac using Mac OS X Snow Leopard 10.6.
Download (3.5 MB)

Maintenance 1.2.7 for Mac OS X Leopard 10.5

Requirements: PowerPC-based Mac or Intel-based Mac using Mac OS X Leopard 10.5. OnyX only opens from an administrator account.
Download (3.7 MB)

Maintenance 1.1.8 for Mac OS X Tiger 10.4

Requirements: PowerPC-based Mac or Intel-based Mac using Mac OS X Tiger 10.4. Maintenance only opens from an administrator account.
Download (3.2 MB)