A lightweight Linux alternative to WinDirStat for visual disk space analysis. Independent open-source Linux tool, not affiliated with, sponsored by, or endorsed by the WinDirStat project.

3-PANE CUSHION TREEMAP & DIRECTORY WORKBENCH • Accurate Recursive Scanner: traverses directories with os.scandir without following symbolic links by default, deduplicates hardlinks by device and inode pairs, calculates both logical size and allocated disk blocks, and resolves mounted host directories cleanly. • Collapsible Size-Sorted Directory Tree: inspect nested folder sizes with inline percentage bars, allocated storage, item counts, and timestamps. • Interactive Extension Statistics Legend: groups all scanned files by file extension with color swatches, byte share percentages, and file counts; click any extension to highlight every matching block on the treemap. • Squarified 3D Cushion Treemap: renders shaded proportional blocks colored by file extension with live hover inspection and bi-directional tree sync.

MOUNTPOINTS, LARGE FILES & EXPORT FILTERS • Live Mountpoints & Top 500 Largest Files: reads kernel mount tables and filesystem capacity via statvfs, lists your largest files with reveal, copy-path, and confirmation-guarded Trash cleanup actions. • Flexible Scan Filters & Reporting: configure exclusion patterns, max scan depth, symlink traversal, and minimum size thresholds; export full CSV and JSON storage reports.