The best open source alternative to WinDirStat is Baobab Disk Usage Analyzer, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to WinDirStat and 18 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to WinDirStat are ncdu (Free, Open Source), QDirStat (Free, Open Source), DiskUsage (Free, Open Source) and GrandPerspective (Free Personal, Open Source).
Free open-source cross-platform file & directory statistics as found on Github - Generate a directory tree for any given folder - View any folder as colored rectangles (squarified algorithm) - Customize the rectangle colors and show statistics about filetypes - Export...
xdiskusage is a user-friendly program to show you what is using up all your disk space. It is based on the design of xhttp://alternativeto.net/software/xdu/ written by Phillip C. Dykstra <dykstra at ieee dot org & gt.
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xdiskusage vs WinDirStat opinions
pros, cons and recent comments
Good very lightweight program for linux. No color coding unfortunately (just white rectangles) but still good for determining what's eating up space on a linux server over X11
diskonaut is a terminal disk space navigator. Given a path on your hard-drive (which could also be the root path, eg. /). diskonaut scans it and indexes its metadata to memory so that you could explore its contents (even while still scanning!).