Disk Usage Analyzer vs FolderSizes

Disk Usage Analyzer is a free Linux desktop app for checking how storage is used and how much space remains. It scans selected folders, storage devices, and online accounts; external drive scans are also supported. Results present folder sizes in a tree view and a graphical representation, so users can inspect how a scan’s contents are distributed. The app page directs users to install the latest version from Flathub, which lists aarch64 and x86_64 architectures. The GNOME app page lists version 50.0, released on 2026-03-13, and names Paolo Borelli, Stefano Facchini, and Christopher Davis as maintainers. Users can report issues or suggest ideas through the app’s issue tracker. Flathub labels the app “Medium Risk.” The plan is listed at free. The app page does not identify which online account services can be scanned, and it does not state security certifications or compliance details.

FolderSizes is a Windows tool for examining file and folder space across local and network storage. It scans local drives, external drives, mapped network drives, UNC paths, and network shares, then presents results as treemap, sunburst, bar, and pie charts. Searches can be narrowed by age, name, attributes, size, owner, date, or depth-related criteria. Reports export to Excel, PDF, HTML, CSV, and XML; recurring scans can also send automated email reports. Disk and folder usage tracking, along with file system snapshots, can show changes over time. The free edition has no time limit and includes four visualizations, reports, advanced search, and scan filtering. The free trial has no feature limitations. A Personal Edition license costs $30 as a one-time purchase and is limited to personal and home network use; a Single-User Pro license costs $60 as a one-time purchase. Pro upgrades include priority technical support and free minor version upgrades. The maker says FolderSizes has been continuously developed since 2003.