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Angry IP Scanner vs fnmap: catalog facts
Angry IP Scanner	fnmap
Free Free and open source under GPL v2.	Free Free and open source under the GPL-2.0 or later licence.
Windows, macOS, Linux	Linux
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	Graphical interface for nmap scans Quick Scan option for common scans
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	Intended for authorized testing of networks you own or may scan Little recent activity visible on the developer site
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-2.0-or-later
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked October 1, 2026

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