csshX is described as 'Tool to allow simultaneous control of multiple SSH sessions. It will attempt to create an SSH session to each remote host in separate Terminal.app windows. A master window will also be created. All keyboard input in the master will be sent to all the slave windows' and is a terminal emulator in the os & utilities category. There are more than 25 alternatives to csshX for a variety of platforms, including Mac, Windows, Linux, iPhone and iPad apps. The best csshX alternative is PuTTY, which is both free and Open Source. Other great apps like csshX are Tabby, MobaXterm, Cygwin and Alacritty.