baobab

Disk Usage Analyzer is a graphical, menu-driven application to analyse
disk usage in any GNOME environment. Disk Usage Analyzer can easily
scan either the whole filesystem tree, or a specific user-requested
directory branch (local or remote).
It also auto-detects in real-time any changes made to your home
directory as far as any mounted/unmounted device. Disk Usage Analyzer
also provides a full graphical treemap window for each selected folder.

          

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License: GPL-2.0-or-later
URL: https://wiki.gnome.org/Apps/DiskUsageAnalyzer