Packetyzer
Packetyzer provides a Windows user interface for the Ethereal packet capture and dissection library. Ethereal is used by network professionals around the world for...
KisMAC is an open-source and free stumbler/scanner application for Mac OS X. It has an advantage over MacStumbler/iStumbler/NetStumbler in that it uses monitor mode and passive scanning.
kismac is an opensource and free stumbler/scanner application for mac os x. it has an advantage over macstumbler/istumbler/netstumbler in that it uses monitor mode and passive scanning.
kismac supports several third party pcmcia cards orinoco, prismii, cisco aironet, atheros and prismgt. usb prism2 is supported as well, and usb ralink support is in development. all of the internal airport hardware is supported as well.
please note: this program is not intended for novices but for professional users. take this as your warning and know what you are doing with your system.
Official Website
GitHub
Twitter
Discontinued network-scanning networking network-analyzer wireless