Filelight is a KDE graphical disk usage analyzer, part of the KDE Utils package. Developed by Max Howell
License: Open Source
WizTree is a fast disk space analyzer designed primarily for Windows, offering quick scanning of NTFS file systems with a focus on performance. In contrast, Filelight is a Linux-based tool that provides a visually interactive way to understand disk usage through pie charts, making it more suitable for users who prefer graphical representations.