OmniDiskSweeper has long been one of my favorite free utilities available for the Mac, and I use it often for my own computer and when trying to figure out what’s eating the disk space of other Macs I may encounter. 3 of the Best Disk Space Analyzers for Mac OS X. It also has built-in app uninstaller which performs well and removes unwanted program files including traces. The program scans your Mac thoroughly including every part of the hard disk and shows the results.

CleanMyMac is one of the robust tool available for Mac systems to clean up disk space without any hassle.