http://www.macupdate.com/download/11582/onyx.dmg
Developer website:
Titanium Software
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OnyX is a multifunction utility that you can use to verify the startup disk and the structure of its system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the Finder, Dock, Safari, and some of Apple's applications, to delete caches, to remove certain problematic folders and files, to rebuild various databases and indexes, and more.
What's New
Version 3.3.7:
- Bug corrected that occurred when opening the Parameters pane
- Bug corrected that occurred when deleting the IconServices Cache
Requirements
- macOS 10.13.x
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