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Tool and Usage

Nmap is a security scanner that can perform a port scan, network exploration, and determine vulnerabilities

Screenshot for Nmap tool review


Nmap is short for "Network Mapper". It is a free and open source utility for network discovery and security auditing. It was release in September of 1997 by Gordon Lyon, commonly known under his pseudonym "Fyodor".

Usage and audience

This tool is categorized as a network port scanner and vulnerability scanner.

Nmap is commonly used for network scanning or vulnerability scanning. Target users for this tool are pentesters, security professionals, and system administrators.

Tool review

The review and analysis of this project resulted in the following remarks for this security tool:


  • + Project is mature (10+ years)
  • + The source code of this software is available
  • + Well-known author
  • + Well-known tool


  • - Software usage is restricted (e.g. commercially)

Author and Maintainers

Nmap is under development by Gordon Lyon.


Support operating systems

Nmap is known to work on FreeBSD, Linux, macOS, Microsoft Windows, and OpenBSD.

Nmap one-liners

Nmap alternatives

See also:

More alternative tools for Nmap

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Project details
Latest release7.60 [2017-08-01]
Last updatedSept. 17, 2017

Project health

This score is calculated by different factors, like project age, last release date, etc.


GitHub iconNmap GitHub project page
 Nmap project website
Twitter icon@nmap

Nmap training guides

This tool is also part of the Linux Security Expert training program.

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