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Angry IP Scanner vs Whosthere: catalog facts
Angry IP Scanner	Whosthere
Free Free and open source under GPL v2.	Free Free and open source under the Apache 2.0 licence.
Windows, macOS, Linux	Windows, Command line
Scans a local network or an internet range, by range, random selection or an address file Extensible through data fetchers for hostname, MAC address, ports and more	Interactive terminal UI for browsing discovered devices Discovery runs without elevated privileges
Needs a Java runtime, which the packaged builds bundle but the bare jar does not The macOS build has been looking for a maintainer since 2019	Limited to the local network Terminal-only, with no graphical interface
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked October 2, 2026

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