Network Traffic Generator and Monitor
Network Traffic Generator and Monitor is a Windows utility for testing network equipment and services under controlled traffic loads. Network administrators, system testers and developers can use it ...

Zenmap is the graphical interface for Nmap, a network discovery and security auditing tool. It helps administrators and learners scan hosts and networks using built-in profiles, or create custom scans with an interactive command creator. Scan results can be viewed, saved, searched and compared to track changes in discovered hosts, ports and services. It is free and open source.
| Author: | Gordon Lyon |
| License: | Open Source |
| Price: | FREE |
| Released: | Oct 27, 2026 |
| File size: | 35.60 MB |
| Downloads: | 1621 |
| Keywords: | network, network scanning, x64 compatible, nmap graphical interface, traceroute, service tracker, network discovery tool, Zenmap, open-source software, Gordon Lyon, network traceroute, port scanner gui, zenmap download, graphical user interface, tracker, compare network scans, network scanner, network explorer, mapper |
| Author URL: | https://nmap.org/ |
Zenmap is the graphical interface for Nmap, a network discovery and security auditing tool. It is intended for administrators, security professionals and network learners who want to inspect hosts and services without composing every scan command by hand. The interface makes common Nmap tasks accessible through selectable scan profiles, while still allowing experienced users to enter or adjust commands directly. Zenmap is free and open source, and is useful for examining a single computer, a small local network or a larger network under the operator’s authority.
A scan profile provides a ready-made set of options for a particular kind of network check. Users select a profile, enter the target host or network, and start the scan; Zenmap builds and runs the corresponding Nmap command. The command creator offers a more interactive way to assemble options and see the command line being formed. Existing profiles can be customized, and frequently used combinations can be saved as new profiles, making recurring checks easier to repeat consistently.
When a scan finishes, Zenmap presents the results in a graphical interface for reviewing discovered hosts and their open ports and services. Nmap can also probe for details such as service versions and operating systems, depending on the options selected and what the target allows the scan to determine. Results can be saved for later inspection rather than being limited to the current session. Zenmap can compare saved scans, helping an administrator identify changes such as newly detected hosts or differences in reported ports and services.
The program keeps recent scan results in a searchable database, which helps when returning to earlier network checks or locating a particular result. These features support practical work such as creating a basic inventory, checking which systems respond on a network, reviewing exposed services, and comparing network states over time. Scans can generate significant traffic, and their findings depend on network conditions, firewall rules and selected options. They should be run only on systems and networks for which the operator has permission.
Zenmap is available for Windows, including Windows 10 and Windows 11, and works alongside Nmap rather than replacing its scanning engine. Some scan techniques may require elevated privileges, and availability of results varies with the scan method and target configuration. Its profile-based workflow suits occasional users, while direct commands, custom profiles, saved results and comparisons offer more control for repeated administrative or security tasks.