Free OmniDiskSweeper Alternatives for Windows
OmniDiskSweeper 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 28 alternatives to OmniDiskSweeper and 17 are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to OmniDiskSweeper are 
WizTree (Free Personal), 
TreeSize (Paid), 
JDiskReport (Free) and 
SpaceMonger (Paid).
- 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.
- 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.
- Free open-source cross-platform file & directory statistics as found on Github- Generate a directory tree for any given folder
- DiskSavvy is a free, fast and easy-to-use disk space analyzer utility allowing one to analyze disk usage in one or more disks, directories, network shares and/or NAS storage...
- i.Disk scans directory trees and displays the total space used by each directory in an easy to use form.
- FilePro Professional disk and file manipulationFeatures? Generate disk treemaps for local or network volumes
- Diskitude helps you figure out what is taking up space on your hard drive using a ring chart.
- StepTree, TreeMap Visualization of Harddrive & Files
- Desktop tool for interactive visualization of disk space and memory.