From KDE UserBase Wiki
    Filelight creates an interactive map of concentric segmented-rings that helps visualize disk usage on your computer

    Filelight allows you to quickly understand exactly where your diskspace is being used by graphically representing your file system as a set of concentric segmented-rings. You can use it to locate hotspots of disk usage and then manipulate those areas using Konqueror, Dolphin, or Krusader.


    • Can scan local, remote or removable disks
    • Configurable color schemes
    • Handy file system navigation by mouse clicks
    • Full information on files and directories on hovering
    • Files and directories can be copied or removed directly from Filelight context menu

    The Handbook is available from here.