TreeMap-Disk-Visualizer

TreeMap is a fully downloadable app that can run on mac, windows, and linux. That visualizeses all of your disk-space into charts and square board. It also lets you delete unwanted files and opens files for you aswell. Maintained by Prithvi-Web on GitHub, where it has earned 145 stars from the community.

It's actively developed around cleanup, cross-platform, dashboard, and is a solid reference for anyone building with these tools.