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Nmap vs Zenmap: catalog facts
Nmap	Zenmap
Free Free for end users under the Nmap Public Source License. Redistributing Nmap inside a…	Free Free, usually distributed together with Nmap.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Host discovery, port scanning, service and version detection and OS fingerprinting in one tool The Nmap Scripting Engine adds hundreds of Lua scripts for specific checks	Saved scan profiles for repeat scans Interactive command creator for Nmap options
The licence is custom, not OSI-approved, and is incompatible with GPLv2 Companies redistributing Nmap in their own products need a commercial OEM licence	Depends on Nmap, which must also be installed Intended for authorized testing of networks you own or may scan
Downloadable app	Downloadable app
Not stated if open source	Closed source
License: Nmap Public Source License	License not stated
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 September 23, 2026

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