OnyX is a multifunction utility for Mac OS X (PowerPC and Intel). It allows you to verify the Startup Disk and the structure of its System files, to run misc tasks of system maintenance, to configure the hidden parameters of the Finder, Dock and of some of Apple’s own applications, to delete caches, to remove a certain number of files and folders that may become cumbersome and more.
What’s new:
Version 1.9.4b3:
• WARNING: BETA VERSION!
• New Utilities > Manuals panel allowing to display the man pages
• The Desktop is saved before relaunching the Finder
• Enable/disable single window mode in Safari
• Deleting Logs improved
• Deleting the User Caches improved
• Deleting the Internet Caches improved
• Safari’s Debug Menu obsolete replaced by the Develop Menu
• Enable Web Inspector option removed (obsolete)
• Enabling/disabling the Safari Cache modified
• Deleting the Fonts Cache of Gimp improved
• Deleting option of recent items (Cleaning > Misc & Automation)
• OnyX returns to the foreground after relaunching the Finder
• Localizations improved
• Bug in the Dutch beta version corrected
• Searching update modified
• OnyX works only on an Administrator account
• Size of the application reduced
• Download (theoretically) more fast 
• Help updated and improved
• Czech localization of Uninstaller
