TreeSize Free 9.8.1

TreeSize Free by JAM Software — Fast Windows disk space analyzer

TreeSize Free is a lightweight, no-cost disk space analyzer from JAM Software that helps Windows users locate large files and folders, reclaim storage, and keep drives organized. The utility scans local drives, network shares and mapped drives quickly, displays folder sizes in an expandable tree view, and provides visual tools that make identifying space hogs intuitive.

What TreeSize Free does best

• Rapid scanning: Uses multi-threaded scanning to enumerate files and folders fast, minimizing wait time when checking large volumes or network locations.
• Folder tree and size overview: Presents a sortable, hierarchical list of folders with sizes, percentages and file counts so you can pinpoint big folders at a glance.
• Treemap and charts: Built-in treemap visualization and pie charts help you visually locate space-consuming files and folder clusters.
• Windows Explorer integration: Context-menu support makes it easy to start scans directly from Explorer and jump from results to the file system.
• Exportable reports: Save scan results and reports in common formats for documentation, archiving or further analysis.
• Portable option: Run TreeSize Free without installation on a USB stick for one-off inspections or technician use.

Key features and practical benefits

• Scan and analyze entire drives, specific folders or mapped network shares to recover wasted space.
• Identify large files and obsolete folders quickly with size-sorted listings and visual treemaps.
• Filter by file types and use built-in search to find duplicates or unusually large file types eating storage.
• Low system impact: optimized routines keep memory and CPU usage modest while scanning.
• Export scan results to CSV or XML to create change logs or share findings with colleagues.

Who should use TreeSize Free

1. Home users who need a straightforward way to free disk space and tidy personal PCs.
2. IT technicians and support staff who require a fast, portable tool for troubleshooting storage issues on multiple machines or network shares.
3. Small office managers who want visual reports and simple exports to plan storage housekeeping.

Tips for getting the most from TreeSize Free

• Run scans from an account with appropriate permissions to see sizes on network shares and protected folders.
• Start with a root-level scan (C:\ or mapped drive) and then drill down into the largest folders shown in the tree view.
• Use the treemap to spot unusually large files quickly, then open their location in Explorer to review or delete them.
• Export results before major cleanup to create a before/after record for auditing or rollback planning.

TreeSize Free is available for download from JAM Software’s website and is updated regularly. Its combination of speed, clear visualizations and Explorer integration makes it a practical first step for anyone wanting to reclaim disk space and maintain cleaner storage on Windows systems.