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iftop vs nload: catalog facts
iftop	nload
Free Free software under the GPL-2.0-or-later license.	Free Free and open source under the GPL-2.0-or-later license.
Command line	Command line
Displays current bandwidth usage by pairs of hosts Shows network traffic on a named interface	Shows incoming and outgoing traffic separately Displays total transferred data and minimum and maximum usage
Requires libpcap and libcurses	Console interface only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: GPL-2.0-or-later
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 October 8, 2026	Official website Full listing and sources Checked October 8, 2026

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