WiFi Signal Strength Explorer is a handy little utility which unlike the normal WiFi icon, shows you the strength of connection via dots/percent in the menu bar and by clicking it, you can access some basic details about your current network. The scanner is able to identify local wireless. A WiFi network introduces a variety of issues that can negatively impact your ability to connect and stay connected.

But it also comes with a downside which is it will also disconnect you and you have to reconnect again. With it, users can scan their radius and detect all the available WiFi networks and overlapping channels. JamWiFi is another free little tool which can not only analyze devices connected to your wireless network, but you can also disconnect them from using your WiFi.

While normally you’d need an external WiFi adapter to these kinds of things, most Macs have a network card that supports monitor mode which overall works out pretty well. WireShark is also capable of working in monitor mode, thereby letting you see what other devices are browsing/watching on your network. Mac OS X has a native WiFi analyzer tool that has many new features. Although it comes with a steep learning curve, it is one of the best packet analyzer apps available. Also includes upload and download speed testing to quickly measure and analyze WiFi Internet performance problems. Use WiFi Scanner to select the best configuration for your WiFi access point / router and optimize network speed. WireShark is an open source and very powerful network analyzer used mainly by network admins and developers. WiFi Scanner for Mac OS Simple, fast wireless network discovery of 802.11 a/b/g/n/ac access points.

Mac os wifi channel scanner