Wetty - Terminal over HTTP and HTTPS.
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.
Gate One - Gate One™ is a web-based Terminal Emulator and SSH client that brings the power of the command line...
Onion Terminal - oterm is a web browser unix terminal.
ttyd - ttyd is a simple command-line tool for sharing terminal over the web.