Free TreeSize Alternatives for Windows

There are many alternatives to TreeSize for Windows if you are looking for a replacement. The best free Windows alternative is WinDirStat, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to TreeSize and many of them are free and available for Windows so hopefully you can find a suitable replacement. Other interesting free Windows alternatives to TreeSize are WizTree, Filelight, SquirrelDisk and FreeCommander.

filter to find the best alternatives

TreeSize alternatives are mainly Disk Usage Analyzers, but if you're looking for File Managers or Duplicate File Finders you can filter on that. Other popular filters include Mac, Linux, Open Source, Android, Windows, Windows + Disk Usage Analysis + File Management + Folder Size and Mac + Free. 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

     1163 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.

    97 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

     284 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.

    91 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. Filelight icon

    Filelight

     83 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.

    70 Filelight alternatives

    Cost / License

    Application type

    Platforms

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

    FreeCommander

     399 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.

    120 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
  7. JDiskReport icon

    JDiskReport

     93 likes

    JDiskReport enables you to understand how much space the files and directories consume on your disk drives, and it helps you find obsolete files and folders.

    72 JDiskReport alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    JDiskReport screenshot 1
     
  9. Space Radar icon

    Space Radar

     10 likes

    SpaceRadar allows interactive visualization of disk space and memory. It currently supports Sunburst, Treemap, and Flamegraph charts.

    Cost / License

    • Free
    • Open Source (MIT)

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Electron
    • Debian
    • AppImage
    Space Radar screenshot 1
     
  10. WinExt Free icon

    WinExt Free

     10 likes

    Powerful Win utilities: fix registry, clean junk, protect privacy, optimize system, quick launch, find duplicates, folder size, see more recent resources, activity monitor, batch operation, synchronization, disable context menus, skip UAC, trace file.

    257 WinExt Free alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Windows
    WinExt Free screenshot 1
     
  11. DiskSavvy icon

    DiskSavvy

     6 likes

    DiskSavvy is a free, fast and easy-to-use disk space analyzer utility allowing one to analyze disk usage in one or more disks, directories, network shares and/or NAS storage devices.

    79 DiskSavvy alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Windows
    DiskSavvy Main GUI Application
     
  12. Xinorbis icon

    Xinorbis

     15 likes

    Xinorbis is a completely FREE, powerful Windows-based data storage analyser for single users or network administrators. Provides an instant visual display of the contents of a hard disk, single or multiple directories. Output reports to XML, CSV, HTML or plain ASCII.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Windows
    Welcome screen
     
    |
    1
    Xinorbis vs TreeSize Comments
    Guest
    Positive
    0

    easy to use. powerful. lots of littles helpful functions.

    Review by a new / low-activity user.
    • Xinorbis is Free and ProprietaryTreeSize is Freemium and Proprietary
  13. Scanner icon

    Scanner

     57 likes

    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.

    76 Scanner alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    Scanner screenshot 1
     
  14. MindGems Folder Size icon

    MindGems Folder Size

     32 likes

    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...

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Windows
    Folder Size with bar chart
     
12 of 41 TreeSize alternatives