QDirStat is a graphical application to show where your disk space has gone and to help you to clean it up. The GUI of the application is accessed through a modern web browser (no installation or configuration needed on the client side) or via any VNC client. Also, being based on Alpine Linux, size of this container is very small. For a complete documentation of this container, see https://github.com/jlesage/docker-qdirstat#readme