About
Hyperspace searches for files with identical content across one or more folders.If it finds such files, it can free up the disk space occupied by all but one of the identical copies—without actually deleting any of them!
To achieve this, Hyperspace utilizes a standard macOS file system feature: space-saving cloning.Finder performs this same action whenever you duplicate a file.For more information, select "Hyperspace Help" from the "Help" menu within the app, or visit the website.