Aircrack-ng - Aircrack-ng is an 802.
Nmap - Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
Fern Wifi Cracker - Your description
Fing - Discover which devices are connected to any Wi-Fi network, map devices, detect intruders, assess...
WirelessKeyView - Recover lost WEP/WPA keys stored by Wireless service of Windows
Angry IP Scanner - Open-source and cross-platform network scanner designed to be fast and simple to use