• webssh
• ttyd

https://github.com/xtermjs/xterm.js

webssh

• https://github.com/huashengdun/webssh

+---------+     http     +--------+    ssh    +-----------+
| browser | <==========> | webssh | <=======> | ssh server|
+---------+   websocket  +--------+    ssh    +-----------+

ttyd

https://github.com/tsl0922/ttyd