Disk Inventory X
Scan for a graphical representation of everything on your hard drive — and see what’s taking up the most space. Click for details and paths.
Scan for duplicate files in the folders of your choosing. Options allow you to focus on music or pictures. Tweak it to find exactly the kind of duplicates you want. Copy or delete the dupes.
Display details of your system configuration that can be copied to the clipboard. The information can be used at Apple support communities so people can help you with troubleshooting your Mac. Personal identification is automatically removed.
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.
Quickly scan websites for broken or bad links. Results can be exported to various visualization formats.
Handy little utility scans your apps for updates. It even finds tiny updates that don’t show up in the Mac App Store.
Use this Mac utility belt to verify the structure of system files, run maintenance and cleaning tasks, configure parameters in the Finder, Dock, Safari, and some Apple applications, delete caches, remove problematic folders and files, and rebuild databases.
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.