AirPort Utility 6.3.1 for Mac is free to download from our application library. This Mac download was scanned by our built-in antivirus and was rated as virus free. The actual developer of this free software for Mac is Apple. The current installation package available for download requires 21.4 MB of hard disk space.
From the developer:
Note: Most recent release available only within OS X 10.11 El Capitan update.
Use AirPort Utility to set up and manage your Wi-Fi network and AirPort base stations, including AirPort Express, AirPort Extreme, and Time Capsule. See a graphical overview of your Wi-Fi network and devices. Change base station and network settings, or manage advanced features such as security modes, wireless channels, and more.
You may want to check out more Mac applications, such as toggle-airport, Airport-Firefighter-Simulator or Airport Mania: First Flight, which might be similar to AirPort Utility.