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Software · Security & privacy

Zenmap

A cross-platform GUI for the Nmap Security Scanner.

  • Completely free
  • Linux
  • Open source

Overview

Zenmap is a security testing program, available on Linux.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “A cross-platform GUI for the Nmap Security Scanner” — Flathub, 10 November 2026

At a glance

Zenmap is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-2.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

Zenmap is the official Nmap Security Scanner GUI. It is a multi-platform (Linux, Windows, Mac OS X, BSD, etc.) free and open source application which aims to make Nmap easy for beginners to use while providing advanced features for experienced Nmap users. Frequently used scans can be saved as profiles to make them easy to run repeatedly. A command creator allows interactive creation of Nmap command lines. Scan results can be saved and viewed later. Saved scan results can be compared with one another to see how they differ. The results of recent scans are stored in a searchable database. This version of Zenmap has a user restriction due to Flatpak: It can't be run as a root user. For all but some specific cases this package should offer feature parity, but it's important to understand that this is trade-off between security and power.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Last technical check: 6 November 2026
  • Description from Flathub — AppStream (Flathub)

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