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Filelight vs GrandPerspective: catalog facts
Filelight	GrandPerspective
Free Free and open source under the GPL.	Free Free and open source under the GPL.
Windows, Linux	macOS
The ring chart makes the biggest space consumers immediately obvious Scans remote and network locations as well as local disks	Saved scans can be compared to see what grew since last time Deletes or reveals a file straight from the map
Pulls in KDE libraries on non-KDE desktops	macOS only, and the interface is deliberately plain
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	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.