Compare software

gdu vs GrandPerspective: catalog facts
gdu	GrandPerspective
Free The open-source application is available without a license fee.	Free Free and open source under the GPL.
Windows, macOS, Linux	macOS
Interactive size inspection with parallel scans	Saved scans can be compared to see what grew since last time Deletes or reveals a file straight from the map
Parallel scanning offers less benefit on mechanical disks.	macOS only, and the interface is deliberately plain
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.