This tool uses a sunburst chart to display the usage of your hard disk or other media. The chart shows all major files and folders from all directory levels at once.

TreeSize is described as 'Analyze disk space usage with in-depth insights and interactive visualizations across local and network drives, including mobile devices' and is a very popular disk usage analyzer in the system & hardware category. There are more than 50 alternatives to TreeSize for a variety of platforms, including Windows, Mac, Linux, BSD and Android apps. The best TreeSize alternative is WinDirStat, which is both free and Open Source. Other great apps like TreeSize are WizTree, Baobab Disk Usage Analyzer, Filelight and SD Maid SE.
This tool uses a sunburst chart to display the usage of your hard disk or other media. The chart shows all major files and folders from all directory levels at once.

Folder Size analyzes your hard drives and displays file and folder sizes so that you can easily check the distribution of your disk space. The application will display the sizes of the folders and files and also the percentage of the total disk size that they occupy in a bar...




RidNacs is a very fast disk space usage analyzer for Microsoft Windows. It scans your local drives, network drives or single directories and produces a tree view with a percentage bar chart column. This gives the user a quick and easy way to identify the largest directories and...




Inspect your disk and find the files that occupy the most space or that haven’t been modified in a long time.




Duc is a collection of tools for inspecting and visualizing disk usage.
Duc scales quite well, it has been tested on systems with more than 500 million files and several petabytes of storage.



SpaceObServer is a powerful and flexible hard disk space manager for Windows. It scans local and network drives using a background service and stores their structure, sizes and properties in an SQL database. Linux and Unix filesystems can be scanned via SSH (Secure Shell).





The most powerful disk space sizing and analysis utility there is! Answering the Who/What/Where/When of your Disk Space.


Total Directory Report - is a professional application designed to allow you viewing your folders, disks or FTP servers as a set of analytical reports or detailed ordered lists in HTML, CSV or PDF formats.

ferris-scan is a lightweight and fast both terminal user interface (TUI) and graphic user interface (GUI) alternative to WinDirStat. Built with Rust and ratatui, it scans your disk in parallel using a thread pool, allowing you to quickly navigate directories directly from the...


Create a visual representation of the amount of space each file is taking on your hard drive. It creates a "squarified treemap" that makes it easy to see where all your space is going.

This free-for-personal-use software utility analyses storage disk usage, and then presents the gathered information in graphical format(s) viz. a directory tree, or a pie chart.
