qdirstat

Install command: 
brew install --cask qdirstat

Name: QDirStat

Disk utilisation visualiser

https://github.com/jesusha123/qdirstat-macos/

Cask JSON API: /api/cask/qdirstat.json

Cask code: qdirstat.rb on GitHub

Current version: 1.9-2

Requirements: macOS >= 10.13

Analytics:

Installs (30 days)
qdirstat 122
Installs (90 days)
qdirstat 357
Installs (365 days)
qdirstat 1,148