Nmap
Open Source
Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool.
Advanced IP Scanner
Free
Advanced IP Scanner shows all network devices, gives you access to shared folders, and can even remotely switch computers off.
Wireless Network Watcher is a small utility that scans your wireless network and displays the list of all computers and devices that are currently connected t…
Nsauditor Network Security Auditor
Commercial
Nsauditor Network Security Auditor is a network security auditing software.
Angry IP Scanner
Open Source
IP scanner is a fast, friendly, extensible, free and open-source IP scanner to scan addresses and ports in any range.
Softperfect Network Scanner - NetScan
Commercial
SoftPerfect Network Scanner is a fast universal IPv4/IPv6 scanner with an extensive range of options and advanced features.
skipfish
Open Source
Skipfish is an active web application security reconnaissance tool.
Compare Zenmap with alternatives
Compare Angry IP Scanner and Zenmap and decide which is most suitable for you.
Compare Advanced IP Scanner and Zenmap and decide which is most suitable for you.
Compare Softperfect Network Scanner - NetScan and Zenmap and decide which is most suitable for you.
Compare Wireless Network Watcher and Zenmap and decide which is most suitable for you.
Compare Nsauditor Network Security Auditor and Zenmap and decide which is most suitable for you.