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 eight 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 SquirrelDisk, Filelight, Space Radar and dua-cli.

filter to find the best alternatives

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, Linux, Open Source, Android, Windows, Windows + Open Source 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

     1150 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
     
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    5
    72
    Comments about WinDirStat as an Alternative to TreeSize
    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
    TreeSize Icon
    WinDirStat icon

    • Almost everyone thinks WinDirStat is a great TreeSize alternative.

    • WinDirStat is the most popular Windows alternative to TreeSize.

    • WinDirStat is the most popular Open Source & free alternative to TreeSize.

    • WinDirStat is Free and Open SourceTreeSize is Freemium and Proprietary
    • WinDirStat is CustomizableTreeSize is not according to our users
  2. SquirrelDisk icon

    SquirrelDisk

     65 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.

    89 SquirrelDisk alternatives

    Cost / License

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    SquirrelDisk screenshot 1
     
  5. Space Radar icon

    Space Radar

     8 likes

    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.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Electron / Atom Shell
    Space Radar screenshot 1
     

  6. 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.

    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.

    62 TreePie alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Warning

    Platforms

    • Windows
    TreePie screenshot 1
     
  10. 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
     
8 of 8 TreeSize alternatives