DiskScope vs TreeSize

DiskScope is a free, open-source desktop app for analyzing disk usage, finding files, and uninstalling applications. It scans files, folders, and apps in parallel, showing results in a sortable table, tree explorer, and zoomable treemap. Views include application sizes and file-type breakdowns. Fuzzy search filters by type, extension, size, and modified date and is designed to remain smooth beyond 100,000 rows. DiskScope reports actual on-disk usage, including sparse and compressed files. Deleted items move to the Recycle Bin; emptying it permanently clears contents after confirmation. On Windows, the Applications tab shows an installed program’s command before launching its native uninstaller. Disk analysis and search work on Windows, Linux, and macOS. Downloads list Windows 10/11 x64, macOS 12 or later, and Linux x64 builds. The macOS and Linux builds are marked experimental and not tested yet. The app runs locally with no telemetry, according to its maker, and checks for signed updates.

TreeSize analyzes files and folders to show how storage is used on Windows desktop systems. Scans can cover local drives, network shares, cloud storage, USB drives, SD cards, and external hard drives; treemap views and file-type breakdowns help present the results. Depending on edition, results can be exported to PDF, Excel, CSV, HTML, or SQLite. Professional adds server scanning, command-line parameters, scheduled scans, and automated reporting. Other listed tools include deleting, moving, bulk renaming, archiving, duplicate finding, and deduplication. TreeSize Free is for private, non-commercial use on Windows desktop and cannot be used on Windows Servers. The editions run on Windows Desktop and operate on-premise; the maker says data does not leave the computer or site and is not shared with third parties. Personal and Professional have 14-day free trials, while SpaceObServer Enterprise has a 45-day trial. Annual prices listed include 20.40 € per user for Personal and from 40.80 € per user for Professional. The Free plan is listed at free.