Remove useless files from a Mac

Solution 1:

Onyx (free)

• Verify the Startup Disk and the structure of its System files, to run misc. tasks of system maintenance

• Configure some hidden parameters of the Finder, Dock, QuickTime, Safari, Mail, iTunes, Login window, Spotlight, and many of Apple’s applications

• Delete caches, to remove a certain number of files and folders that may become cumbersome, and more.

• ...

Removing duplicate files is not supported by Onyx.

Solution 2:

I use Macaroni by Atomic Bird http://www.atomicbird.com. Cost $10. Installs as a login item, with a pane in System Preferences. Automatic daily, weekly and monthly cleaning.

2014: I would also recommend "Duplicate Detective", currently $3 in the Mac App Store. It finds files with duplicate hash values, not relying on file names or just file sizes alone.

Solution 3:

One of the oldest and popular app is CCleaner. It is most popular app for PC. And it works perfectly on Mac too.

• https://www.piriform.com/mac/ccleaner