Our website provides a free download of TreeSize Professional developed by JAM Software GmbH. The program can be used on 32-bit and 64 versions of Windows 11, Windows XP, Windows XP Professional x64 Edition, Windows Vista, Windows 7, Windows 8.1, Windows 10. The setup file has been checked by our built-in antivirus solution Dr.Web CureIt and the scan shows that this download is totally safe. The shareware software is part of the Disk Management subcategory within System Utilities.