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O&O DiskStat Alternatives

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 25 alternatives to O&O DiskStat for a variety of platforms, including Windows, Mac, Linux, Android and Windows S. The best 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 DaisyDisk.

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  • Windows

O&O DiskStat is a high-power tool for analyzing the used disk space on your storage volumes. With an easy-to-use...

Learn more about O&O DiskStat

  1. WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat .

    Folder sorted after their foldersize
  2. WizTree scans your entire hard drive and shows you which files and folders are using the most disk space. It does this VERY QUICKLY. In fact, we believe WizTree to be the fastest application of this type currently available!

    Wiztree graphical tree view

  3. Baobab Disk Usage Analyzer icon

    Baobab Disk Usage Analyzer

    • FreeOpen Source
    • Linux
    • BSD
    • FreeBSD
    • GNOME
    • Homebrew

    Baobab Disk Usage Analyzer is a graphical application to analyse disk usage in any Gnome environment. Disk Usage Analyzer can easily scan device volumes or a specific user-requested directory branch (local or remote).

  4. DiskUsage icon


    • FreeOpen Source
    • Android
    • Android Tablet

    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.

  5. DaisyDisk icon


    • Mac

    With DaisyDisk you can free up disk space by quickly finding and deleting big, useless files. The program scans any mounted disk and displays it on the sunburst map, where segments mean files and folders, proportionally to their sizes. The map is easy to read and navigate.

    DaisyDisk 4 showing HD level scan, including free space on the disk. Hidden volumes are revealed in DaisyDisk that you normally can't see in Apple's utilities.

  6. GrandPerspective icon


    • Free PersonalOpen Source
    • Mac

    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.

    GrandPerspective view after scanning a source. Showing dark mode compatibility (macOS Mojave only)
  7. Space Radar icon

    Space Radar

    • FreeOpen Source
    • Mac
    • Windows
    • Electron / Atom Shell

    Space Radar is a disk and memory space visualization app built with Electron and D3.js. It currently supports Sunburst, Treemap, and Flamegraph charts and is available for Mac and Windows.

  8. Scanner icon


    • FreeProprietary
    • Windows

    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.


    The program seems to be no longer updated. Last version, 2.13, released in July 2012, is fully working and can be still downloaded from the official website.

  9. FolderSizes icon


    • Windows

    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.

  10. duf

    • FreeOpen Source
    • Linux

    A disk usage free utility for Linux.

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