🔒Security & Compliance · Development & Programming

Port Radar for macOS

Nmap ("Network Mapper") is a free and open source utility for network discovery and security auditing. It uses raw IP packets to determine available hosts, the services they offer, operating system versions, and packet filters/firewalls in use, and it can rapidly scan large networks or single hosts.

Visit Port Radar for macOS Official Site Port Radar for macOS alternativesLast updated · Aug 22, 2026

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Key facts

What is Port Radar for macOS?

A free, powerful, portable network discovery and security scanning tool with dozens of advanced scanning techniques.

Who is Port Radar for macOS best for?

Systems and network administrators, security auditors, and security-conscious users

Does Port Radar for macOS have a free plan?

According to official sources, a free plan is available.

What are its main limitations?

Comes with no warranty

Limitations are based on product materials or editorial synthesis; confirm on the official site.

When was this information verified?

August 22, 2026

Sources

Official homepageofficial homepage · Aug 22, 2026

Key features

✓Port scanning mechanisms for both TCP and UDP
✓OS detection and version detection
✓Ping sweeps and handling of IP filters, firewalls, and routers
✓Nmap Scripting Engine (NSE) with scripts
✓Zenmap GUI and results viewer
✓Ncat data transfer/redirection/debugging tool, Ndiff scan comparison, and Nping packet generation/response analysis
✓Free download with full source code under a permissive license
✓Comprehensive man pages, whitepapers, tutorials, and a book

Use cases

→Security auditing of networks and hosts
→Network inventory and discovery
→Managing service upgrade schedules
→Monitoring host or service uptime
→Mapping out networks filled with IP filters, firewalls, and routers
→Scanning huge networks of hundreds of thousands of machines

Pricing

Free

· Free download
· Full source code included

Nmap is available for free download with full source code.

Pros

+Free and open source with full source code
+Powerful enough to scan networks of hundreds of thousands of machines
+Runs on most major operating systems including Linux, Windows, macOS, FreeBSD, and more
+Well documented with man pages, tutorials, and a book
+Supported by a vibrant community, mailing lists, and IRC

Cons

−Comes with no warranty

Positioning

Core value: A free, powerful, portable network discovery and security scanning tool with dozens of advanced scanning techniques.
Ideal for: Systems and network administrators, security auditors, and security-conscious users
Product type: Command-line executable with optional GUI (Zenmap), plus companion tools; binaries available for Linux, Windows, and macOS

Frequently asked questions

What is Nmap?

Nmap ("Network Mapper") is a free and open source utility for network discovery and security auditing that uses raw IP packets to map hosts, services, operating systems, and firewalls.

Is Nmap free?

Yes, Nmap is available for free download and comes with full source code that may be modified and redistributed under the terms of its license.

What operating systems are supported?

Nmap runs on most major operating systems, including Linux, Microsoft Windows, FreeBSD, OpenBSD, Solaris, IRIX, Mac OS X, HP-UX, NetBSD, Sun OS, and Amiga.

What can Nmap detect?

Nmap can determine what hosts are available, what services (application name and version) are offered, what operating systems and OS versions are running, and what type of packet filters/firewalls are in use.

Does Nmap include a graphical interface?

Yes, the Nmap suite includes Zenmap, an advanced GUI and results viewer, in addition to the classic command-line executable.