Filelight is a KDE graphical disk usage analyzer, part of the KDE Utils package. Developed by Max Howell
License: Open Source
Filelight is an open-source disk usage visualization tool primarily for Linux, offering an interactive radial layout to explore disk usage, while TreeSize is a paid tool for Windows that provides detailed file and folder reporting with fast scanning capabilities. Filelight is ideal for users seeking a lightweight, customizable solution, whereas TreeSize is better suited for those needing comprehensive reporting features on Windows.