Powerful and flexible hard disk space manager for Windows. TreeSize Professional shows you the size, allocated and wasted space, number of files, 3D bar and pie charts, the last access date, the file owner, the NTFS compression rate and much more information for several folders or drives. The results can be printed or exported to Excel, HTML, XML or ASCII. It also lets you search for old, big, temporary, obsolete and browser cache files.

Version 3.13 fixes a bug with the grouping by users feature.