The tool analyses your NVMe and SSD drives and collects the statistics which you could view as overview graphical charts and it shows the sizes of files and folders in a special graphical way called “tree maps”.
App description: JDiskReport 1.4.1
App description: System
The good: Free
The bad: None
Updated: March 31, 2017
System requirements: The program requires OS X 10.10 or later. If you have Java 9, use the JDiskReport 2 preview.