Shell In A Box - Shell In A Box is a web based AJAX terminal emulator that can export arbitrary command line tools...
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
Bastillion - Bastillion is an open-source web-based SSH console that centrally manages administrative access to systems.
KiTTY - KiTTY is a fork from version 0.70 of PuTTY. It adds extra features to PuTTY.
Wetty - Terminal over HTTP and HTTPS.
ConEmu - ConEmu-Maximus5 is a full-featured local terminal for Windows devs, admins and users. Get better console window with tabs, splits, Quake style, copy+paste, DosBox and PuTTY integration, and much more.