It still works blazing fast on hard drives that are 1000 times the size than the drives that existed when it was programmed, and nearly as well as 20+ years ago (there are some occasional crashes when removing some system protected files, but easy to just open it up and scan again). I never made the jump to Spacemonger 2 because in the early years that I started using it, I was in high school without a credit card.
I emailed the author in December 2020 to see if there was a way to enable HiDPI on it, since that's the only real flaw of it right now. He responded 3 months later with a very personal message that I really appreciated.
I see no mention of [KDirStat] http://kdirstat.sourceforge.net/ of which, the much more famous, but later, [WinDirStat], is a clone.
Also note that there's text based, graphical, and web interfaces to view the database.
Edit: I am trying something new here. Usually when I have beeninging complain or ask for help regarding a computer problem for a long time the solution appears in the minute in the comments or in a Google search. Fingers crossed.
du -ax / | xdu -n -c 9https://www.stardock.com/products/spacemonger/
The Stardock version 3.0 Build 1711 is from 2018, so that is a while since the last update and there's still no HiDPI. There's also a bug where it interprets 0-byte placeholder files as 8GB giants. But 2018 seems to be a newer update than what people here are suggesting.
But v3 isn't free, and I've not tried the old freeware / open source version, so I don't know if newer actually means "better".
https://www.werkema.com/programming/the-spacemonger-1-x-post...
Respect to whoever programmed it. Disk Inventory X became a must-install as soon as I switched over to Mac. Something about being able to see your whole disk that's more enlightening than browsing directories or trees somehow.
That’s not necessarily a bad thing. I still use it and it does exactly what I want it to do - help me figure out what’s using up all of the space on my disk. It used to usually be media files. These days it’s usually Windows.
SpaceSniffer on the other hand don't have that many features but it's very fast. If you are cleaning up files, you can see the size of boxes getting smaller in realtime as files being deleted.