SpaceSniffer is a freeware (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks. By using a Treemap visualization layout, you have immediate perception of where big folders and files are placed on your devices. Treemap concept was invented by Prof. Ben Shneiderman, who kindly permitted the use of his concept into this tool.

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Disk Space Analyzers

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  • mvpxzack Posted 2026-01-13
    Saved me a lot of trouble trying to find where all the space went too <3
  • rameshsf Posted 2025-03-17
    very useful, clean and simple interface
  • atsiene Posted 2025-02-21
    created a source forge acc just to rate this. 10/10 will use again this helped me clear up around 300 gigs worth of space that i didn't even know i had in my pc
  • zanthin5 Posted 2024-10-18
    Wow. Awesome program. It helped me find a lot of hidden and forgotten files that were taking up a lot of space. I highly recommend it if you are looking to free up disk space.
  • john6ty Posted 2024-08-28
    Works perfectly to check storage space
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2023-11-07
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