Troubleshoot a Mac even if you can’t load the GUI, or don’t have a startup CD handy. Repair your disk, repair permissions, validate the system’s preference files, and get rid of possibly corrupted cache files.
Check your caches, logs, trash and downloads for files that don’t need to be there. Decide whether you want to delete them to free up space on your hard drive. Built-in utilities uninstall apps and check on how much space you have. Nice interface if you find Onyx intimidating. “Pro” version also available, but free version provides plenty of functionality.
Turn your iPod into a recovery and diagnostic tool.
Scan your folders to get a colourful view of what is inside them. Then hover with your cursor to see what files are represented. It’s a great way to see what’s taking up all the space. Disk Inventory X does much the same thing.
Maintenance and optimization tool uses only UNIX built-in system tasks to help your Mac stay running smoothly. Tasks include: running routine scripts, updating prebindings, verifying preference files, repairing permissions, clearing caches, and more.
There’s maintenance stuff your Unix-based computer does every night, but if you’re like me and turn it off at night, that won’t happen. So get MacJanitor to do it instead, and keep that Mac purring.
Verifies the startup disk and the structure of its system files, runs system maintenance, configures some hidden parameters , deletes caches, removes unneeded files and folders, and more.
Check your preference files for corruption, then give ‘em the treatment if you so desire.
Go through caches, logs, browsers, downloads, chats and games — check off the cruft you don’t want — then click to move it into the trash. A great way to clean up your Mac. Ignore the Buy button. Purity is now freeware.
Warns you of some ATA hard disk failures before they happen by periodically polling the S.M.A.R.T.-status of your hard disk.
Not satisfied with the system preferences Apple gives you access to on your mac? TinkerTool lets you get at that hidden stuff too numerous to mention. If you’re the type who can’t leave well enough alone, then tinker away.