Wetty - Terminal over HTTP and HTTPS.
ngrok - ngrok enables secure introspectable tunnels to localhost webhook development tool and debugging tool.
Shell In A Box - Shell In A Box is a web based AJAX terminal emulator that can export arbitrary command line tools...
tmate - Tmate is a instant terminal sharing based on ssh.
Bastillion - Bastillion is an open-source web-based SSH console that centrally manages administrative access to systems.
Pagekite - Bring your localhost servers on-line.