iStumbler RSS Feeds
News (RSS)
Archive (RSS)
Support iStumbler!
iStumbler T-Shirt
iStumbler T-Shirt $20.00
More cool gear in the iStumbler shop

Attend your local
Wi-Fi Meetup
iStumbler recommends

the best broadband ISP.
$

Subscribe to iStumbler!
For just $10 you can receive the next 10 iStumbler releases a week before you can get them here!

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.

iStumbler Release 90 named a Version Tracker Editors's Pick!

Download iStumbler
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.

The Press Release and Change Log have all the details.

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.

iStumbler is available under a BSD Style Open Source License. You can download iStumbler source code. (1.6M), modify it freely and submit patches to me for consideration.

Send me an email to suggest new features or to report a bug that's not already on the Bug List.


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.

iStumbler on the web

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.
Wireless Hacks

"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 interface."
The Mac Mind

Mac Update Reader Rating (4 1/2 stars) 4.5 Stars

Version Tracker Overall Rating (3.8)