The Best Free TreeSize AlternativesTop Disk Usage Analyzers & System Cleaners like TreeSize

The best free alternative to TreeSize is WinDirStat, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to TreeSize and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to TreeSize are WizTree, Baobab Disk Usage Analyzer, SquirrelDisk and Filelight.

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TreeSize alternatives are mainly Disk Usage Analyzers, but if you're looking for File Managers or System Cleaners you can filter on that. Other popular filters include Mac, Open Source, Linux, Android, Windows + Open Source, Windows and Windows + Disk Usage Analysis + File Management + Folder Size. These are just examples - use the filter bar below to find more specific alternatives to TreeSize.
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Alternatives list

  1. WinDirStat icon

    WinDirStat

     1156 likes

    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.

    94 WinDirStat alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    Folder sorted after their foldersize
     
    |
    5
    WinDirStat vs TreeSize Comments
    Top Positive Comment
    LR88
    0

    Unable to view remote LAN folders in different extension formats (ext4, etc). TreeSize can see them well.

    Digital Sorceress
    Positive
    0

    WinDirStat is free and open source, which means it works on my windows Server without needing to pay for it the way TreeSize does.

    I really like the duplicate finding tool though it has some quirks - its died on me a few times while tryig to save out the CSV and it doesn't seem to properly reload from csv - causing me to have to rescan. It also doesn't seem to save or give an option to save for the duplicates -

    Still it's free, open source and has helped me quickly find where my space has been going to.

    I see they are currently almost ready with a new release, so it's under active development

    fbianconi
    Positive
    0

    Is open source and does a excelent use of screen realstate.

    Review by a new / low-activity user.
    3 of 5 comments
    • WinDirStat is Free and Open SourceTreeSize is Freemium and Proprietary
    • WinDirStat is CustomizableTreeSize is not according to our users
  2. WizTree icon

    WizTree

     279 likes

    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.

    88 WizTree alternatives

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Platforms

    • Windows
    WizTree screenshot 1
     
    |
    4
    WizTree vs TreeSize Comments
    Guest
    Positive
    4

    WizTree is faster and much more accurate than Treesize as it properly handles hard linked files (doesn't count them more than once) so the total allocated size reported by WizTree will actually match the space used on the drive as reported by Windows.

    Review by a new / low-activity user.
    Guest
    Positive
    2

    Much faster than all others I've tried, even on network shares. The visualization looks very similar to windirstat, almost identical.

    Review by a new / low-activity user.
    Guest
    Positive
    2

    It is very fast, even on remote disks. I use it to manage my Google Drive through Google File Stream.

    Review by a new / low-activity user.
    3 of 4 comments
    • WizTree is Free Personal and ProprietaryTreeSize is Freemium and Proprietary
    • WizTree is Privacy focusedTreeSize is not according to our users
  4. Baobab Disk Usage Analyzer icon

    Baobab Disk Usage Analyzer

     245 likes

    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.

    84 Baobab Disk Usage Analyzer alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Linux
    • BSD
    • Flathub
    • FreeBSD
    • GNOME
    • Homebrew
    Baobab Disk Usage Analyzer screenshot 1
     
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    4
    Baobab Disk Usage Analyzer vs TreeSize Comments
    Guest
    Positive
    3

    It's simple and gives all relevant info and useful pie charts

    Review by a new / low-activity user.
    Guest
    Negative
    1

    not enough features; poor ui

    Review by a new / low-activity user.
    Guest
    Positive
    0

    It Works and I think its better because it uses pie charts

    Review by a new / low-activity user.
    3 of 4 comments
    • Baobab Disk Usage Analyzer is Free and Open SourceTreeSize is Freemium and Proprietary
    • Baobab Disk Usage Analyzer is Privacy focusedTreeSize is not according to our users
  5. SquirrelDisk icon

    SquirrelDisk

     66 likes

    SquirrelDisk shows you exactly what's taking up all that space and helps you clear it out. Using SquirrelDisk is a matter of clicking one button to easily find all the huge files on your computer.

    90 SquirrelDisk alternatives

    Cost / License

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    SquirrelDisk screenshot 1
     
  6. Filelight icon

    Filelight

     76 likes

    Provides graphical disk usage analysis using interactive segmented rings, scans local, remote and removable disks, enables navigation and file management from within the interface, displays live info on hover, and integrates with KDE file managers for efficient data management.

    68 Filelight alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • KDE Plasma
    • Snapcraft
    • Flathub
    Filelight screenshot 1
     
  7. FreeCommander icon

    FreeCommander

     397 likes

    Dual-panel file manager with tabbed navigation, built-in viewer for multiple formats, ZIP/RAR/7z archive support, folder sync and comparison, batch renaming, search within archives, customizable keyboard shortcuts, DOS command integration, and full portability.

    117 FreeCommander alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Windows
    • PortableApps.com
    FreeCommander screenshot 1
     
    |
    3
    FreeCommander vs TreeSize Comments
    Guest
    Negative
    2

    Doesn't show disk space and manage files like TreeSize

    Review by a new / low-activity user.
    Guest
    Negative
    1

    Great tool but oriented to other tasks

    Review by a new / low-activity user.
    Rick Black
    Positive
    0

    Not only does it report folder sizes, but it's also a file manager with tremendous feature, and has toolbars above, bellow, splitting a pain, and to the left right which are fully customize-able with internal commands or external programs & scripts. And it takes screen shots, and so much more. I'm so impressed with it, and I'm very difficult to please.

    • FreeCommander is Freemium and ProprietaryTreeSize is also Freemium and Proprietary
  9. ncdu icon

    ncdu

     133 likes

    A disk usage analyzer with an ncurses interface, aimed to be run on a remote server where you don't have an entire graphical setup, but have to do with a simple SSH connection. ncdu aims to be fast, simple and easy to use, and should be able to run in any minimal POSIX-like...

    44 ncdu alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Linux
    • BSD
    • Cygwin
    ncdu screenshot 1
     
    |
    1
    ncdu vs TreeSize Comments
    Guest
    Positive
    0

    Fast and command-line interface.

    Review by a new / low-activity user.
    • ncdu is Free and Open SourceTreeSize is Freemium and Proprietary
  10. QDirStat icon

    QDirStat

     41 likes

    QDirStat is a graphical disk usage utility. The successor of KDirStat without any KDE dependencies.

    66 QDirStat alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • BSD
    • Flathub
    • Flatpak
    QDirStat screenshot 1
     
    |
    1
    QDirStat vs TreeSize Comments
    Guest
    Positive
    0

    It shows from the biggest to smallest directory size. The big block on the bottom could be disabled on the view menu.

    Review by a new / low-activity user.
    • QDirStat is Free and Open SourceTreeSize is Freemium and Proprietary
  11. GrandPerspective icon

    GrandPerspective

     90 likes

    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.

    76 GrandPerspective alternatives

    Cost / License

    • Free Personal
    • Open Source

    Application type

    Platforms

    • Mac
    GrandPerspective view after scanning a source. Showing dark mode compatibility (macOS Mojave only)
     
  12. DiskUsage icon

    DiskUsage

     80 likes

    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.

    81 DiskUsage alternatives

    Cost / License

    Application type

    Platforms

    • Android
    • Android Tablet
    DiskUsage screenshot 1
     
  13. Mole icon

    Mole

     16 likes

    Open source Mac command line utility integrating disk cleanup, deep app uninstallation with artifact removal, disk analysis, optimization tasks, and a live terminal dashboard for real-time CPU, GPU, memory, disk, and network monitoring with interactive options.

    54 Mole alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application types

    Platforms

    • Mac
    Mole screenshot 1
     
  14. DiskPoint icon

    DiskPoint

     11 likes

    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.

    56 DiskPoint alternatives

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Mac
    DiskPoint screenshot 1
     
12 of 62 TreeSize alternatives