ncdu is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. The best Windows alternative is WinDirStat, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to ncdu and 16 are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to ncdu are WizTree (Free Personal), TreeSize (Paid), JDiskReport (Free) and Space Radar (Free, 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...
FilePro Professional disk and file manipulation Features ? Generate disk treemaps for local or network volumes ? Search and locate files in treemaps by automatic zoom-in and positioning. ? Save entire or partial volume snapshots
Pretty fast disk usage analyzer written in Go. Gdu is intended primarily for SSD disks where it can fully utilize parallel processing. However HDDs work as well, but the performance gain is not so huge.