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.
Comprehensive disk analysis tool offering treemap visualizations to identify large files, duplicate detection, and versatile cleanup actions. Operates offline, ad-free, and open-source, it runs portably on Windows without registration, providing a lightweight solution to manage disk storage.
Germany
EU
Comprehensive disk usage analyzer providing ultra-fast insight into space consumption by directly reading NTFS file systems. Identify top space hogs, sort content by size, and enjoy features like portability, offline access, dark mode, and no registration needs. Exclusive to NTFS drives.
Australia
Powerful GNOME application that provides in-depth disk usage analysis with graphical representation. It supports scanning of volumes, specific directories, and network folders, offering insights into space allocation both locally and remotely.
United States
DiskUsage provides a way to find out which files and directories on the SD card of your Android phone are consuming the most space. It displays diagram with directories/subdirectories proportional to their size. Users are allowed to zoom in to look at specific directory content.
GrandPerspective is a small utility application for Mac that graphically shows the disk usage within a file system. It can help you to manage your disk, as you can easily spot which files and folders take up the most space.
NetherlandsEU
Cross-platform disk cleaning tool offering private, local file operations with no data tracking, no cloud uploads, no ads, no cost, and an intuitive interface. Fast performance, efficient space recovery, and full functionality for Mac, Windows, and Linux.
United States
Analyzes disk usage with an intuitive sunburst map, locating and previewing large or unused files across any mounted disk, with drag-and-drop management, fast scanning, real-time updates as files are removed, system integration, and support for various file systems.
Ukraine
Native Quick Look add-on for macOS lets you preview folder size, largest files and subfolders, item counts, storage breakdown, and hidden files directly in Finder. On-demand, local scans ensure no cloud uploads or tracking, with upgrade for further folder inspection.
China
SpaceRadar allows interactive visualization of disk space and memory. It currently supports Sunburst, Treemap, and Flamegraph charts.
United States
SpaceMonger is a treemapping tool for hard disks and file systems. It scans, maps, and manages PC, network, and cloud storage. It can copy, move, and delete files to free up storage space. It helps locate large files and folders quickly with Treemap visuals and finds files by...
United States
A native disk-space analyzer for Windows. It maps your entire drive into an interactive sunburst chart in seconds, so you can see exactly what's eating your storage and reclaim gigabytes in one click.
Algeria
A fast, GPU-accelerated disk-usage treemap for Linux. It maps your whole filesystem as nested rectangles sized to what they actually consume, so the space hogs jump out instantly. Then right-click anything for a plain-English “safe to delete?
