26 November 2025

SpaceSniffer



SpaceSniffer


SpaceSniffer is a free, portable disk space analysis tool for Windows that uses an intuitive treemap visualization to show how files and folders occupy space on your drives.

By scanning your storage and displaying data in dynamic, color-coded blocks, it makes it easy to identify large or unnecessary files at a glance. Users can zoom into folders, apply filters, and watch the map update in real time as files are moved or deleted. Lightweight and fast, SpaceSniffer requires no installation and is ideal for quickly diagnosing disk usage problems and reclaiming valuable storage space.


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