Sweeper helps to clean unwanted traces users leave on the system.
Check all cleanup actions you would like to perform using the and buttons or by selecting/deselecting individual items from the two groups General and Web Browsing
If you are satisfied with your selection click the button, which immediately performs the cleanup actions you selected.
Sweeper deletes the cached data used by KDE applications from the KDE cache folder.
To see the location of this folder enter
in Konsole. Cleaning up your cached data with
Sweeper makes it only impossible to read them e.g. using a filemanager, but it is possible
to read the raw data, which is still on the disk, using a low level disk tool.