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gdu vs OmniDiskSweeper: catalog facts
gdu	OmniDiskSweeper
Free The open-source application is available without a license fee.	Free Free download from The Omni Group.
Windows, macOS, Linux	macOS
Interactive size inspection with parallel scans	Plain list of files sorted by size Trash or open files directly from the list
Parallel scanning offers less benefit on mechanical disks.	macOS only List view only, no treemap or chart
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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