OnyX

About

OnyX is a multifunction utility for Mac. It can verify the structure of system files, perform cleaning and maintenance tasks, and uninstall applications. It can also configure parameters in the Finder, Dock, Safari, and some Apple applications, delete caches, remove certain problematic folders and files, and rebuild various databases and indexes.

OnyX provides a clean interface to many tasks that would otherwise require complex commands typed into a command-line interface. The website describes it as a reliable application. The developer has worked on these applications since 2003 so that all Mac users can use them freely, and offers a donation option for those who want to help.

There is a specific version of OnyX for each major macOS version, and users should install the version that matches their system rather than one intended for an earlier operating system. The current release is OnyX 5.1.1 for macOS Golden Gate 27, which requires a Mac with Apple silicon. Older versions are available for earlier macOS releases, but Titanium Software has discontinued developing them and will no longer update them.