The best open source alternative to Zenmap is Nmap. If that doesn't suit you, our users have ranked more than 25 alternatives to Zenmap and 18 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Zenmap are Angry IP Scanner, NetPeek, Port Authority and NETworkManager by BornToBeRoot.
Open-source utility for security auditing and network exploration, utilizing raw IP packets to scan hosts and services, identify OS and service versions, and assess network infrastructure, compatible across major operating systems with advanced GUI and tool suite.
Open-source, cross-platform network scanner for fast and simple IP and port scanning. It's lightweight, requires no installation, utilizes multithreading for speed, and is extendable via plugins. It pings IPs, resolves hostnames, determines MAC addresses, provides NetBIOS info, and saves results in various formats.
A modern libadwaita-based network scanner for GNOME that helps you discover devices on your local network.
Android-focused port scanner quickly discovers hosts and delivers comprehensive network data. Displays local and remote device info, enabling detailed analysis for systems security.
NETworkManager is a powerful tool for managing networks and troubleshoot network problems! It includes a variety of tools such as an IP scanner, Port Scanner, Ping Monitor, WiFi analyzer, PuTTY/RemoteDesktop with tabs or an LLDP/CDP capture (and many more) in a unified user...
ZMap is a fast single packet network scanner designed for Internet-wide network surveys. On a typical desktop computer with a gigabit Ethernet connection, ZMap is capable scanning the entire public IPv4 address space in under 45 minutes.
NeDi can discover your network on a regular basis. It allows you to locate and track all connected devices, monitor traffic or broad-
Netdiscover is an active/passive address reconnaissance tool, mainly developed for those wireless networks without dhcp server, when you are wardriving. It can be also used on hub/switched networks.
United States
Estonia
EU
Germany
