Disk Inventory X 1.3 (macOS 10.13 - 10.15) Please consider to donate to support the development of Disk Inventory X! More Info What is this?Disk Inventory X is a disk usage utility for Mac OS X. It shows the sizes of files and folders in a special graphical way called "treemaps". If you've ever wondered where all your disk space has gone, Disk Inventory X will help you to answer this question. For