iStumbler finds all local wireless networks.

iStumbler is a powerful free tool for finding and troubleshooting wireless networks. It will display all the wireless hotspots within range of your Mac. You can quickly determine whether they’re open or secure, their SSIDs, signal strength, the wireless channel used, and more.

(via creativetechs)

Comments

[Stupa]

Thank you so very very much for posting this. You are my hero. :D

BTW, I've been keeping up to date with you site for months now and it's one of my favorite RSS feeds. Keep up the amazing work!

[jake Smith]

I find Kismac a better tool, with mapping and GPS integration, maybe it's a step up from iStumbler

[Clark]

A better 'set down' might be coconut wifi. Simpler and focused on wifi only.