SpaceMonger vs. SpaceSniffer

Out of the 4TB that I got for my NAS a year ago, only 14GB is left. Time to find out what's been hogging my disk and purge some files.

Tried out two freeware utilities: SpaceMonger 1.4 and SpaceSniffer 1.3.0.1. SpaceMonger has since been acquired by Stardock and has gone commercial. What we'll be reviewing is the old freeware version.

If you're not too fussy, either is just fine. Both works as advertised, no installation required. SpaceMonger (SM) is 105kB in size; SpaceSniffer (SS) is much bigger at 1.6MB. And there's a reason for that. While SM reads a drive, then presents the drive usage as a static treemap, SS is able to analyze drives and arbitrary folder paths, and updates the treemap in realtime. No need to hit refresh. I guess, due to this feature, it seems like that SS is faster.

Looks like the winner is SpaceSniffer!