TinkerTool System is a set of system utility functions that help you perform advanced management tasks on Apple Macintosh computers. The application uses an adaptive user interface that automatically adapts to the computer model and version of macOS you're running. All available options are accessed through "panes," a technique very similar to what you're familiar with from the System Preferences application. These functions are controlled from a single window, allowing you to use the application as a universal toolbox and first aid assistant.
This includes:
macOS's built-in maintenance features, usually not visible in the graphical user interface,
Extended file operations, not available in macOS Finder,
Provides access to advanced system settings not visible in System Preferences.
Real and unique features of the TinkerTool system, designed to solve typical real-world problems of administrators and fix the effects of certain defects ("bugs") in the operating system,
An emergency tool for troubleshooting and repairing macOS in cases where the graphical user interface no longer starts correctly or the system administrator's user account has been corrupted.
Features that collect high-level information about your hardware, operating system, and applications.
TinkerTool System, available free along with its sister program TinkerTool, is a perfect replacement for the following types of system utilities:
Finder Enhancer,
cache and font cache cleaner,
Scripts to create bootable system installer and recovery disks,
Tools to access hidden preference settings,
An application that makes an object invisible in the Finder,
Log file browser,
Application Uninstaller,
Single-user mode troubleshooting tools,
Spell check dictionary editor,
and many others.