SpaceSniffer is a freeware computer disk space analyser from Uderzo Software for Microsoft Windows platforms.

[2] The executable file can be simply copied without requiring any other installation process.

Notable features include: The application has been reviewed favourably by editors and users.

[3][5] PCWorld concluded its review by pronouncing it a “recommended download”[2] and Freewaregenius.com called it “a very well made program that is simple, intuitive, elegant, and very useful”.

[4] Reviewers and users have noted that the treemap presentation “can be a bit overwhelming at times” or “cluttered and more complex than necessary” but concluded that it was “effective”.