WinDirStat 硬碟容量統計軟體能以全彩的方式來呈現不同的檔案在硬碟中佔去的空間大小可以知道是哪一類型的檔案佔據了你寶貴的硬碟空間。 使用者可以直接於 WinDirStat 所顯示的顏色區塊上，點選某一個顏色就會顯示那個顏色所代表的檔案有哪些，讓使用者能夠快速處理這些檔案。注意如果你想要刪除檔案時不過可要真的確定你不需要這些檔案才這麼做。這個功能所刪除的檔案，將會不經過「資源回收桶」而被直接刪除
WinDirStat reads the whole directory tree once and then presents it in three useful views:
* The directory list, which resembles the tree view of the Windows Explorer but is sorted by file/subtree size,
* The treemap, which shows the whole contents of the directory tree straight away,
* The extension list, which serves as a legend and shows statistics about the file types.
* Coupling. Select an item in the directory list: The treemap highlights it; and vice versa.
* Zooming.
* Built-in cleanup actions including Open, Show Properties, Delete.
* User-defined cleanups (command line based).
* Works with network drives and UNC paths.
* 'Create disk usage report' option.
* 'Submit bug report/Feedback' option.
* Online help.
http://windirstat.info/