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netdiscover vs Whosthere: catalog facts
netdiscover	Whosthere
Free Free to download from its official repository.	Free Free and open source under the Apache 2.0 licence.
Linux, Command line	Windows, Command line
Active and passive ARP discovery Works on networks without a DHCP server	Interactive terminal UI for browsing discovered devices Discovery runs without elevated privileges
Only discovers hosts on the local network segment Intended for authorized testing of networks you own or may scan	Limited to the local network Terminal-only, with no graphical interface
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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