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NmapNetPeek
Free

Free for end users under the Nmap Public Source License. Redistributing Nmap inside a…

 Free

Free and open source under the GPL 3.

Windows, macOS, Linux, Command line 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
  • Simple GNOME interface for network discovery
  • Shows open ports on discovered devices
  • The licence is custom, not OSI-approved, and is incompatible with GPLv2
  • Companies redistributing Nmap in their own products need a commercial OEM licence
  • Linux only
  • Far fewer options than a full scanner like Nmap
Downloadable app Downloadable app
Not stated if open source Open source
License: Nmap Public Source License License: GPL-3.0-or-later
No account needed No account needed
Works offline Not stated if it works offline

Checked September 20, 2026

Checked October 1, 2026

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