Wetty - Terminal over HTTP and HTTPS.
Shell In A Box - Shell In A Box is a web based AJAX terminal emulator that can export arbitrary command line tools...
Bastillion - Bastillion is an open-source web-based SSH console that centrally manages administrative access to systems.
TinyShell - TinyShell is an open source UNIX backdoor.
Onion Terminal - oterm is a web browser unix terminal.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more