MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
PuTTY - Popular free terminal application. Mostly used as an SSH client.
tawk.to - tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page
GNOME Terminal - GNOME Terminal is a terminal emulator for GNOME desktop.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.