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.

O&O DiskStat is described as 'High-power tool for analyzing the used disk space on your storage volumes. With an easy-to-use interface based on the design of the Windows Explorer, you can take a closer look at the file and folder structure of your internal and external drives' and is a disk usage analyzer in the system & hardware category. There are more than 50 alternatives to O&O DiskStat for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best O&O DiskStat alternative is WinDirStat, which is both free and Open Source. Other great apps like O&O DiskStat are WizTree, Baobab Disk Usage Analyzer, DiskUsage and GrandPerspective.
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.

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...




FolderSizes provides an engaging, interactive disk space analysis experience that you must try yourself to truly appreciate. More than just a series of diverse reports, FolderSizes allows you to visualize your disk space usage from multiple perspectives, like SequoiaView.




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.



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




A fast, native disk space analyzer for macOS, Windows and Linux that maps your storage as an interactive sunburst and helps reclaim wasted space.




A fast, native macOS disk space analyzer that helps you find where your storage is going. Scan any folder or volume, explore results with an interactive sunburst chart and file browser, and clean up — all without leaving the app.


GdMap is a tool which allows to visualize disk space. Ever wondered why your hard disk is full or what directory and files take up most of the space? With GdMap these questions can be answered quickly. To display directory structures cushion treemaps are used which visualize a...






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.
