SpaceSniffer AlternativesOnly apps categorised as Duplicate File Finders

The best Duplicate File Finder alternative to SpaceSniffer is WinDirStat, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to SpaceSniffer and 16 are Duplicate File Finders so hopefully you can find a suitable replacement. Other interesting Duplicate File Finder alternatives to SpaceSniffer are WizTree, SD Maid SE, WinExt Free and Spacie.

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Most SpaceSniffer alternatives are Duplicate File Finders, but you can also narrow the list to Disk Usage Analyzers or System Cleaners. Other popular filters are Mac, Open Source, Linux, Android and Windows.
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Alternatives
SpaceSniffer alternatives page was last updated

Alternatives list

  1. WinDirStat icon
     1199 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.

    133 WinDirStat alternatives

    Cost / License

    Application type

    Since

    • Since 2009

    Platforms

    • Windows
    Good alternative?
     
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    2
  2. WizTree icon
     294 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.

    125 WizTree alternatives

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Since

    • Since 2012

    Platforms

    • Windows
    • Mac
    Good alternative?
     
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    2
  3. SD Maid SE icon
     123 likes

    SD Maid SE (aka SD Maid 2) is a file management tool for Android that specialises in maintenance. Its core purpose is freeing up space and removing unwanted data.

    171 SD Maid SE alternatives

    Cost / License

    Application type

    Since

    • Since 2016

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    • OpenAPK
    Good alternative?
     
  4. WinExt Free icon
     11 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.

    271 WinExt Free alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Since

    • Since 2017

    Alerts

    • Discontinued

    Platforms

    • Windows
    Good alternative?
     
  5. Spacie icon
     2 likes

    Take back your hard disk space with Spacie. Spacie scans files and folders on your hard disk and display them in column view, with size information shown up-front. It can help you quickly locate large files that are occupying the precious space on your hard disk.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2012

    Alerts

    • Discontinued

    Platforms

    • Mac
    Good alternative?
     
  6. Xinorbis icon
     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

    Since

    • Since 2009

    Platforms

    • Windows
    • GB flagUnited Kingdom
    Welcome screen
    Good alternative?
     
  7. Disk Xray icon
     5 likes

    Visual disk usage analyzer for Mac featuring byte-level duplicate file detection, detailed storage statistics, customizable folder scans, temporary file removal, undo safeguards, selective cleanup, support for large files, and dedicated modules for managing storage.

    291 Disk Xray alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2014

    Platforms

    • Mac
    Good alternative?
     
  8. Vallt Cleaner icon
     4 likes

    Disk cleanup for Windows that recovers more space than traditional cleaners, without ever putting a file at risk.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Since

    • Since 2026

    Platforms

    • Windows
    Good alternative?
     
  9. Disk Space Fan Pro is a is not only a duplicate file finder, but also a powerful disk space analysis tool for Windows. It helps you to free up disk space by quickly finding and deleting big, useless files.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2009

    Platforms

    • Windows
    Good alternative?
     
  10. FilePro icon
     6 likes

    This free-for-personal-use software utility analyses storage disk usage, and then presents the gathered information in graphical format(s) viz. a directory tree, or a pie chart.

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Since

    • Since 2012

    Platforms

    • Windows
    Good alternative?
     
  11. Zenovix Storage Manager is a Windows storage management app designed to help users understand, clean, and organise their disk space.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Since

    • Since 2026

    Platforms

    • Windows
    Good alternative?
     
  12. LumaDisk icon
     1 like

    Disk space analyzer for macOS and Windows that draws a disk as a sunburst or treemap, then finds duplicates, unused files and developer caches to reclaim.

    69 LumaDisk alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2026

    Platforms

    • Windows
    • Mac
    Good alternative?
     
12 of 16 SpaceSniffer alternatives