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gdu vs pdu (parallel-disk-usage): catalog facts
gdu	pdu (parallel-disk-usage)
Free The open-source application is available without a license fee.	Free Free and open source with no paid tier.
Windows, macOS, Linux	Command line
Interactive size inspection with parallel scans	Parallel scanning for quick results on large directory trees Visual size chart directly in the terminal
Parallel scanning offers less benefit on mechanical disks.	Terminal only, with no graphical interface Reports usage but does not delete or move files
Downloadable app	Downloadable app
Open source	Open 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.