Open Source TreeSize Alternatives for Windows

There are many alternatives to TreeSize for Windows if you are looking for a replacement. The best open source Windows alternative is WinDirStat. If that doesn't suit you, our users have ranked more than 50 alternatives to TreeSize and nine of them are open source and available for Windows so hopefully you can find a suitable replacement. Other interesting open source Windows alternatives to TreeSize are Filelight, SquirrelDisk, Space Radar and dua-cli.

filter to find the best alternatives

TreeSize alternatives are mainly Disk Usage Analyzers, but if you're looking for System Cleaners or File Managers you can filter on that. Other popular filters include Mac, Linux, Open Source, 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

     1157 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. Filelight icon

    Filelight

     79 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
     
  4. 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. D

    dua-cli

     2 likes

    dua (-> Disk Usage Analyzer) is a tool to conveniently learn about the usage of disk space of a given directory. It's parallel by default and will max out your SSD, providing relevant information as fast as possible.

    57 dua-cli alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • MacPorts
    • Homebrew
    dua-cli screenshot 1
     
  7. crossdirstat icon

    crossdirstat

     4 likes

    Free open-source cross-platform file & directory statistics as found on Github

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    crossdirstat screenshot 1
     
  9. TreePie icon

    TreePie

     5 likes

    TreePie : a simple way to display disk usage. It shows the distribution of size in a tree of directories by using an interactive multilevel pie (sunburst diagram). Really small and simple.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Warning

    Platforms

    • Windows
    TreePie screenshot 1
     
  10. ferris-scan icon

    ferris-scan

     1 like

    ferris-scan is a lightweight and fast both terminal user interface (TUI) and graphic user interface (GUI) alternative to WinDirStat. Built with Rust and ratatui, it scans your disk in parallel using a thread pool, allowing you to quickly navigate directories directly from the...

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Windows
    • Linux
    ferris-scan TUI interface
     
  11. gdu icon

    gdu

     3 likes

    Fast disk usage analyzer with console interface written in Go.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    gdu screenshot 1
     
9 of 9 TreeSize alternatives