Cost / License
- Free
- Open Source
Application type
Platforms
- Linux
- BSD

TreeSize is described as 'Analyze disk space usage with in-depth insights and interactive visualizations across local and network drives, including mobile devices' and is a very popular disk usage analyzer in the system & hardware category. There are more than 100 alternatives to TreeSize for a variety of platforms, including Windows, Mac, Linux, BSD and Android apps. The best TreeSize alternative is WinDirStat, which is both free and Open Source. Other great apps like TreeSize are WizTree, Baobab Disk Usage Analyzer, Filelight and SD Maid SE.

Program to help recover disk space. Gives pie-chart view of disk usage, including unused space, with the ability to drill down into folders. Shows actual or nominal space occupied. Knows about the effects of cluster sizes.
DissectMac is a native, privacy-first macOS utility that uses an interactive treemap to visualize storage, allowing users to reclaim gigabytes in seconds through deep app uninstallation and real-time system monitoring.




Drive Sonar is a fast, lightweight desktop disk usage explorer and analyzer built with Tauri, Rust, React, and TypeScript.



Klarity is a disk space analyzer for macOS that shows where your storage went as a treemap: every file and folder is a rectangle sized to scale, so the biggest items are visible at a glance instead of being found one folder at a time.




Diskraptor is a fast and lightweight cross-platform disk analyzer designed to give users a clear and detailed overview of their storage usage. Powered by a high-performance Rust engine, it scans millions of files in seconds and presents the results in an intuitive, responsive...




A native Windows application for quickly analyzing disk usage and finding the files and folders that consume the most space.




Free disk analyzer for Windows scans drives to reveal largest files and folders, displays visual tree with size bars, supports file type labels and minimum-size filtering, offers search and browser-based lookup, and includes safe cleanup features to remove temporary files.




SpaceBrowser scans a folder or volume and displays its contents as a size-proportional treemap, making large files and directories easy to identify.

disk-insight is a local-only disk usage viewer for Windows. It reads NTFS Master File Table (MFT) data directly for fast scanning and presents the result as a tree-first view, so you can expand folders and see where storage is used before deciding what to review.





StorageRadar maps your disk, shows blocked paths instead of hiding them, lets you dry-run cleanup, and compares what changed over time. Scan data stays local, while analytics and diagnostics remain separately controllable in settings.



