macOS 10.14 Mojave or later
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Some of its most popular options are without a doubt ability to preview logs, CrashReporter reports, countless hidden parameters of the system, and removal of unused and large files or directories. All of the functions of this app are accessible via a highly-intuitive interface that features eight main tabs filled with countless OS tweaks – Verify, Maintenance, Cleaning, Utilities, Automation, Parameters, Log, and Info. The parameters section is especially useful, enabling you to tweak core functions and services of many basic macOS apps that everyone uses countless times every day.
With all this power at the tip of your fingers, OnyX for Mac definitely represents the best possible way to control your system from most obvious tasks and easy tasks to deeply hidden options that were before accessible only to professionals (for the app also offers access to the powerful command line that can be used to run scripts and automated commands).
Note: Requires 64-bit processor.