OmniDiskSweeper: my favorite app for this is a native Mac application. That weighs in at about 24MB. This is quite a bit leaner. Don’t know if it’s any good but

OmniDiskSweeper: my favorite app for this is a native Mac application. That weighs in at about 24MB. This is quite a bit leaner. Don’t know if it’s any good but for non technical users the size of this app is about as low as you can go without dropping into a terminal.