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NETworkManager vs What IP: catalog facts
NETworkManager	What IP
Free Free and open source, with no license fee or subscription.	Free Free and open source under the GPL 3.0.
Windows	Linux
27 network tools in a single application Built-in RDP, PuTTY, PowerShell and VNC sessions	Local and public IP for every interface in one window Checks whether listening ports are publicly reachable
Windows only	Linux only Basic scanning compared with dedicated network scanners
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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