PuTTY - Popular free terminal application. Mostly used as an SSH client.
Gotty - GoTTY is a simple command line tool that turns your CLI tools into web applications.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
ngrok - ngrok enables secure introspectable tunnels to localhost webhook development tool and debugging tool.
iTerm2 - A terminal emulator for macOS that does amazing things.
Pagekite - Bring your localhost servers on-line.