Open Source Disk Space Analyzers

GrandPerspective is a utility application for macOS that graphically displays the disk usage of your file system. It can help you to manage your disk, as you can easily spot which files and folders take up the most space.

WinDirStat (Windows Directory Statistics) is a disk usage statistics viewer and cleanup tool for Windows. On start up, WinDirStat reads the whole directory tree once and then presents it in three useful views. The official download location and collaboration platform for WinDirStat has moved to GitHub: https://github.com/windirstat/windirstat Downloads and source code provided on SourceForge may not always be up to date. They are primarily used for disaster recovery purposes.

This package displays a list of the disk drivers you have on your system. Creates a box-style formatted table that displays both the disk and the total, used, and free space on it. You can easily integrate it into any code as long as you follow the instructions below in the details and have Ascoos Framework 24 installed.

Current official release: 1.1.2. Windows 10 2004+ or Windows 11 (x64). Osenpa Disk Analyzer is a free, closed-source Windows app for investigating storage use. Scan one drive or connected drives, inspect file and folder sizes, and filter by category or name. Supported NTFS volumes can use MFT scanning with folder-traversal fallback. Review access warnings and inspect item locations before removing anything. Size and age alone do not mean a file is safe to delete. Name results display up to 2,000 matches. Scanning stays local; launch checks use the network, and optional online search can share a selected path. Current downloads are available from the Official Download link: https://osenpa.com/osenpa-disk-analyzer. Earlier EXE files have been removed from this SourceForge page. License terms accompanying previously distributed copies are unchanged.