LumaDisk vs QDirStat

LumaDisk is a disk space analyzer for macOS and Windows that maps a filesystem to show what is using storage. Its interactive sunburst and treemap views update during a scan. The app groups regenerable developer folders such as node_modules, /target,.next, and DerivedData, and groups duplicate files with one copy selected to keep. It also lists files of at least 100 MB that have not been opened for six months, a year, or two years. External drives are fully supported; network volumes can be analyzed read-only. Cloud support includes iCloud Drive, OneDrive, and Dropbox, while Google Drive is described as coming soon. The free plan keeps scanning and the sunburst view available. A LumaDisk license is listed at $6.89 a month, billed as a one-time payment rather than a subscription, and covers up to five Macs. Requirements are macOS 12 or later on Apple Silicon, or Windows 10 or later on x86-64 or ARM64. Reclaim permanently deletes files, with a ten-second undo window and safeguards against queuing system folders.

QDirStat is free graphical software for examining disk usage and cleaning selected files. It displays directory and file sizes in a tree and colored treemap, with views for file types, size histograms, file ages, and free, used, and reserved space on mounted filesystems. Users can select multiple items and run configurable cleanup actions, including moving items to the trash or deleting them. On Linux systems using dpkg, rpm, or pacman, the Packages view lists installed packages and their files; an Unpackaged Files view highlights system files outside those packages. QDirStat targets Linux, BSD, and Unix-like systems on X11 desktops. Third parties provide macOS binaries and Homebrew distribution. There is no native Windows version, although Docker is suggested for non-Linux systems. A Perl script collects headless-server directory data into a cache for desktop viewing; cleanup then occurs on the desktop. Cache files may reveal directory contents and should be protected. QDirStat is GPL V2 software.