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SpaceSniffer alternatives

As of Nov 13, 2026, the highest-graded SpaceSniffer alternative is WizTree (3.0 GPA). It's also the best free one. The catch, in its listing's words: "Free for personal use with every scanning feature."

SpaceSniffer compared with 4 alternatives: WizTree, WinDirStat, TreeSize and DaisyDisk.

SpaceSniffer is free to use. 3 of the 4 alternatives are free or have a free plan. One more offers a free trial.

Listings checked up to Nov 13, 2026 · Where the facts come from

At a glance

ToolPriceFree planRuns on
SpaceSnifferThis toolFreeFreeWindows
WizTreeFree plan · from $25 one-timeYesmacOS, Windows
WinDirStatFreeFreeWindows
TreeSizeFree planYesWindows
DaisyDiskFree trial · from $9.99 one-timeTrial onlymacOS

How each one differs from SpaceSniffer

  1. WizTree

    Fast disk space analyzer for Windows and macOS

    • WizTree starts at $25 one-time purchase (Individual supporter code, 1 year of upgrades).
    • WizTree also lists a macOS app.
    • WizTree can be bought with a one-time purchase.
    • WizTree does not cover file management, which SpaceSniffer does.

    Suits: Finding what is filling up a Windows or Mac drive

    WizTree vs SpaceSnifferWizTree pricing and details

  2. WinDirStat

    Free, open-source disk usage analyzer for Windows

    • WinDirStat is free.
    • WinDirStat is open source, according to its own site.
    • WinDirStat does not cover file management, which SpaceSniffer does.

    Suits: Finding out what is filling a Windows drive at no cost

    WinDirStat vs SpaceSnifferWinDirStat pricing and details

  3. TreeSize

    Windows disk space analyzer with reports and cleanup tools

    • TreeSize starts at 20.40 EUR per user / year, billed annually.
    • TreeSize also covers reports.

    Suits: Windows users who need to find what fills a drive

    TreeSize vs SpaceSnifferTreeSize pricing and details

  4. DaisyDisk

    Visual disk space analyzer and cleanup tool for Mac

    • DaisyDisk starts at $9.99 one-time purchase (lifetime license).
    • DaisyDisk has no free plan, only a free trial, unlike SpaceSniffer.
    • DaisyDisk also lists a macOS app.
    • DaisyDisk lists no Windows app, which SpaceSniffer has.
    • DaisyDisk can be bought with a one-time purchase.

    Suits: Mac users who keep running out of disk space

    DaisyDisk vs SpaceSnifferDaisyDisk pricing and details

Limits worth knowing in SpaceSniffer

  • It analyzes and reports; the vendor's pages describe no cleanup or deletion tools beyond the Windows file menu.
  • The vendor's pages are short and the site lists no system requirements; the Windows context menu support points to Windows only.
  • Downloads are linked through a mirror called dAppCDN rather than hosted on the vendor's own page.
SpaceSniffer pricing and details

Common questions

What are the alternatives to SpaceSniffer?

The alternatives to SpaceSniffer in this directory are WizTree, WinDirStat, TreeSize and DaisyDisk. Each one has a side-by-side comparison with SpaceSniffer.

Is there a free alternative to SpaceSniffer?

Yes. WinDirStat is free to use. WizTree and TreeSize have a free plan alongside paid ones.

Which SpaceSniffer alternatives work on macOS?

The SpaceSniffer listing does not include a macOS app. WizTree and DaisyDisk list one.

Is there an open-source alternative to SpaceSniffer?

WinDirStat is described as open source on its own site.

When were these prices checked?

Each listing shows its own date. On this page they run from Oct 6, 2026 to Nov 13, 2026. Vendors change prices without notice, so confirm on their site before you buy.

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