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gdu vs diskonaut: catalog facts
gdu	diskonaut
Free The open-source application is available without a license fee.	Free Free and open source under the MIT license.
Windows, macOS, Linux	Windows, macOS, Linux, Command line
Interactive size inspection with parallel scans	Shows folder sizes as a treemap Explore contents while scanning
Parallel scanning offers less benefit on mechanical disks.	Uses a terminal interface
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
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 October 8, 2026

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