TinkerTool System 9 is a collection of system utility features helping you in performing advanced administration tasks on Apple Macintosh computers. The application makes use of a self-adapting user interface which automatically adjusts to the computer model and to the version of macOS you are running.

All options available in the current situation are accessible via “panes”, very similar to the System Settings application. The features are controlled via a single window which allows you to use the application as a general toolbox and First Aid assistant.

This includes
built-in maintenance features of macOS, usually not visible on the graphical user interface,
extended file operations, not available in the macOS Finder,
the possibility to access advanced system settings which are not visible in System Settings,
graphical user interfaces for “pro” features for which Apple doesn’t provide any graphical interface in modern versions of macOS any longer,
genuine and unique features of TinkerTool System, designed to resolve typical real-world problems of administrators and to fix the effects of certain defects (“bugs”) in the operating system,
features to protect your privacy,
an emergency tool to troubleshoot and repair macOS in cases where the normal user interface is no longer starting correctly or the user account of the system administrator has been damaged,
functions to collect advanced information about the hardware, operating system, and applications.

Supported Operation Systems
macOS 15.0 or later