Nmap License [better] Jun 2026

: The ability to install Nmap without user intervention, a feature removed from the public version to prevent malware abuse.

: Direct access to the developers for integration assistance. nmap license

Years later, Nmap had become an industry-standard tool, used by millions of users around the world. And Fyodor's decision to uphold the NPSL had ensured that Nmap remained free, open-source, and available to anyone who needed it. : The ability to install Nmap without user

The Nmap license is stricter than GPLv2/GPLv3 in one major way: it explicitly prohibits using Nmap in a commercial SaaS scanning service without permission. The GPL does not forbid such use. This makes the Nmap license —you cannot combine Nmap code with GPL-licensed code. And Fyodor's decision to uphold the NPSL had

The story of Nmap's license serves as a reminder of the importance of protecting the integrity of open-source software. It shows that even in the face of commercial pressure, it is possible to stay true to one's principles and ensure that a project remains free and open-source for generations to come.

A frequent point of confusion in open-source licensing arises when a tool links against libraries with different licenses.

If you wish to use Nmap functionality within a proprietary (closed-source) tool: