Traceroute Online - Traceroute application with mapping and distance calculated and plotted on Google Maps.
Wireless Network Watcher - scans your wireless network and displays the list of all computers and devices that are currently connected to your network.
VisualRoute - VisualRoute is a traceroutes and network diagnostic tool that provides reverses trace, reverse DNS and much more.
Nmap - Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
Path Analyzer Pro - Path Analyzer Pro delivers advanced network route-tracing with performance tests, DNS, whois, and...
Angry IP Scanner - Open-source and cross-platform network scanner designed to be fast and simple to use