iStumbler is a free, open source tool for finding AirPort networks, Bluetooth devices and now mDNS services with your Mac. iStumbler combines a compact user interface with a real time display of signal strength and complete debugging information.
Download iStumbler Release 90 (226K) for Mac OS 10.3 (Panther)
iStumbler requires Mac OS 10.3
AirPort Plugin requires AirPort or AirPort Extreme
Bluetooth Plugin requires Bluetooth.
Release 90 introduces the mDNS (Multicast-DNS, AKA Rendezvous) plugin which allows you to browse published services on the local network and connect to them with a single click. The Bluetooth plugin enables the 'Pair' and 'Browse' features while the preferences have been updated for all plugins.
You can support iStumbler by subscribing to new releases. For only $1 per release, subscribers will receive copies of iStumbler via email 24 hours before the general release. See our subscription page for the details.
Visit the iStumbler Shop and get cool logo wear and wireless tools.
Download iStumbler 82 (672K) for Mac OS 10.2 (Jaguar)
Requires Mac OS 10.1 with AirPort or AirPort Extreme.
Release 82 updated the user interface and fixed several bugs. It is the last Jaguar build of iStumbler.
Another popular network discovery tool, [iStumbler], is even simpler than
MacStumbler, in that there is really nothing to configured. Just fire it up
and it will find all available networks for you, complete with a real-time
signal and noise meter.
"iStumbler provides the user with a very straightforward interface to
view current wireless networks in range of the users computer. iStumbler
tells you the SSID (station name), signal strength, channel, whether or
not the station is encrypted with WEP, and much more in its easy-to-read
The Mac Mind