Run automated maintenance scripts and fix permissions The OnyX utility has been designed as multi-functional app to help you check your Mac's start-up disk and system files, to run various system maintenance tasks, to tweak the settings for various apps and system components, and to find and remove app caches and various types of files that, in time, will occupy unnecessary space on your hard drive.Īs said before, Onyx comes with a user-friendly graphical interface which organizes all the available tools using tabs, to make it easy for you to find the exact setting or utility you need, as rapidly as possible.
It has a version for each macOS release, so download the version for your operating system! All-in-one system maintenance, tweak and cleaning tool Onyx is a free and very complex macOS application created to cope with both these aspects, while also providing its users with a very simple and intuitive interface. Tweaking applications for macOS come in various shapes and prices, and you are free to pick the one that meets your needs, be it focused on finding and fixing as many system errors and problems as possible or on boosting your Mac's overall performance.