On Wireshark.org, you will find an install for macOS (10.12 and later). The install for macOS is a significant improvement since Wireshark moved from GTK to Qt in that now, there is a native interface for macOS.

Prior to that, when you downloaded Wireshark on your macOS, you had to use X11, which is the X Windows system. Version 1.12 was the final release that required the X Windows system. Now, you can download and install Wireshark on a macOS just like any other OS. The installer will guide you through the installation in much the same manner as installing on a Windows machine.

As you can see, this has made Wireshark more user-friendly to the growing population of macOS users. Because of the widespread use of Linux, the following provides information on how Wireshark is also easy to install and use on a Linux machine.