Compare software

Zenmap vs fnmap: catalog facts
Zenmap	fnmap
Free Free, usually distributed together with Nmap.	Free Free and open source under the GPL-2.0 or later licence.
Windows, macOS, Linux	Linux
Saved scan profiles for repeat scans Interactive command creator for Nmap options	Graphical interface for nmap scans Quick Scan option for common scans
Depends on Nmap, which must also be installed Intended for authorized testing of networks you own or may scan	Intended for authorized testing of networks you own or may scan Little recent activity visible on the developer site
Downloadable app	Downloadable app
Closed source	Open source
License not stated	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 23, 2026	Official website Full listing and sources Checked October 1, 2026

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