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For Windows users seeking to understand and manage their disk space usage, WinDirStat is a disk usage statistics viewer and cleanup assistant designed for Microsoft Windows clients and servers. WinDirStat reads the directory tree on startup and presents it in three useful views: a directory list resembling Windows Explorer's tree view but sorted by file/subtree size, a treemap showing the directory tree's contents, and an extension list serving as a legend with file type statistics.

Key Features

WinDirStat's treemap represents each file as a colored rectangle proportional to its size, arranged to reflect the directory structure. The color indicates the file type, as shown in the extension list. Users can navigate through the treemap to identify large files and directories.

Usage

Upon launching, users can choose to scan all local drives, individual drives, or a specific folder. The software then displays file names, sizes, and types, along with a treemap visualization. Users can interact with the treemap to identify large files and delete them directly from within the application.

Benefits

The intuitive visualization helps users quickly understand their disk usage patterns and take action to free up space.