ncdu Alternatives for Windows
ncdu is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. The most popular 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 17 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 
Scanner (Free).
- WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
- Identify the data vacuums on your hard drive with pinpoint precision very, very quickly.
- Free Personal
- Windows
br This program is unbelievably fast! - The powerful disk space management software.
- JDiskReport enables you to understand how much space the files and directories consume on your disk drives, and it helps you find obsolete files and folders.No screenshots yet
- Free
- Mac
- Windows
- Linux
- BSD
- This tool uses a sunburst chart to display the usage of your hard disk or other media. The chart shows all major files and folders from all directory levels at once.
Discontinued
The program seems to be no longer updated. Last version, 2.13, released in July 2012, is fully working and can be still downloaded from the official website.
- Free
- Windows
- Features:
Scan local, remote or removable disks.
Configurable color schemes.
File system navigation by mouse clicks.
Information about files and directories on hovering. - Create a visual representation of the amount of space each file is taking on your hard drive.
Discontinued
The official website is no longer available. Last version, 1.3, released in June 2006, can be still downloaded from Softpedia.
- Free
- Windows
- 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...
- Folder Size analyzes your hard drives and displays file and folder sizes so that you can easily check the distribution of your disk space.