1Tree is a free software that displays all directory and file sizes in a single tree, making manual disk cleaning simple. Sorted by size, it loads drives, folders, and files and offers common commands.

1Tree Basic can load both your local and network drives, folders, and files along with their sizes. The software sorts these sizes in descending order, giving you an organized view of your disk space usage. Apart from that, it provides you with common commands like Delete, Move to, and Rename along with a few special commands such as Get Full Path of Resource for your drives, files, or folders.
1Tree Basic is like a GUI du tool for Windows or the UNIX/Linux du command. With its simple and effective approach, it lets you easily do your manual disk cleaning work. Key features of 1Tree Basic include the ability to show folder size, sorting by size, intelligent units, intelligent decimal system, common commands, copy full path, and customizable interface.
In summary, 1Tree is a must-have tool for anyone who wants to manage their disk space effectively. Get it today and never struggle with manual disk cleaning again!
Version 7.0: Greatly improved the starting speed. Can directly display the common locations such as Desktop, Downloads, Documents, Music, Videos and Pictures. Fully supports native Dutch. Uses the Segoe UI font for all interfaces. Uses the Windows 10 style icons. Optimized the appearance of tree view. And more.