Download TreeSize Free

TreeSize Free is a fast and powerful disk space manager for Windows that quickly analyzes your hard drive usage and displays the results in an easy-to-read tree view. It helps you instantly identify which folders, files, and drives are consuming the most space so you can take action to free up storage.

Unlike the built-in Windows disk tools, TreeSize Free scans entire drives in seconds and presents a sortable, hierarchical view of folder sizes — making it immediately clear where your disk space is going. It supports all drive types including local disks, network shares, and external drives.

Completely free and integrating seamlessly into Windows Explorer’s context menu, TreeSize Free is the go-to tool for anyone who regularly runs out of disk space and wants to quickly understand where it all went.

Key Features

• Fast disk scan shows folder sizes in a sortable tree view
• Displays folder sizes in bytes, KB, MB, GB, or as percentage of total
• Integrates into Windows Explorer’s right-click context menu
• Supports local drives, external drives, and network shares
• Bar chart view for visual representation of disk usage
• Export results to clipboard, Excel, or text file
• Portable version available — no installation required

How to Install

1. Click the download button above to get the TreeSize Free installer.
2. Run the setup file and follow the on-screen instructions to install.
3. Launch TreeSize Free and select a drive or folder to analyze.
4. Wait a few seconds for the scan to complete and view folder sizes in the tree.
5. Right-click any folder in Windows Explorer and select “TreeSize Free” for a quick scan.