Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Wireless Network Watcher - scans your wireless network and displays the list of all computers and devices that are currently connected to your network.
tcpdump - tcpdump is a common packet analyzer that runs under the command line.
Aircrack-ng - Aircrack-ng is an 802.
SmartSniff - SmartSniff is a packet sniffer that capture TCP/IP packets and display them as sequence of conversations between clients and servers.
My WIFI Router - Wifi Hotspot creator for Windows