Space Radar is described as 'SpaceRadar allows interactive visualization of disk space and memory. It currently supports Sunburst, Treemap, and Flamegraph charts' and is a disk usage analyzer in the system & hardware category. There are more than 50 alternatives to Space Radar for a variety of platforms, including Windows, Mac, Linux, BSD and Flathub apps. The best Space Radar alternative is WinDirStat, which is both free and Open Source. Other great apps like Space Radar are WizTree, Baobab Disk Usage Analyzer, Filelight and TreeSize.