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gdu vs diskus: catalog facts
gdu	diskus
Free The open-source application is available without a license fee.	Free The open-source application is available without a license fee.
Windows, macOS, Linux	Windows, macOS, Linux
Interactive size inspection with parallel scans	Simple directory totals with parallel scanning
Parallel scanning offers less benefit on mechanical disks.	It is a size counter rather than a full disk explorer.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
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.