Open Source JavaScript Terminal Emulators for BSD

h3270 is a program that allows you to use IBM 3270 hosts from within a web browser. It is different from other, similar systems because of its highly configurable layout engine that is based on regular expressions.

ajaxWM is a themable ajax-and-python-based window manager, which provides multiple flexible terminals in a web-browser for comfortable remote-controlling of a computer via a network without having to install any software on the client-side.

Shell Commander is a PHP script, that allows remote execution of shell commands (like SSH client) through a web browser.

Norton commander style, native Linux file manager and sophisticated editor. Whole app is aimed at developing source code. It is supposed to be your terminal and file manager and source code editor all together integrated in a really cool way. Written in JavaScript, Node.js and npm based, thus extremely configurable and scriptable. This program is for true geeks. It is neither terminal program nor traditional gui. It has terminal client built in. Easy switch between panels and terminal and text editor and hex viewer. It's developed by a single person so far therefore any help is appreciated, spread the word, localize, write docs, add features. Installation instructions are here: https://github.com/exebook/deodar/blob/master/установка.букв

Discuz! Command Prompt is a plugin for Discuz! forum system that emulates the famous DOS environment, written using AJAX and PHP.

RealMint is an ANSI terminal emulator and telnet client written completely in JavaScript. When installed, RealMint lets you login to your server from a web browser using telnet and an encrypted HTTPS tunnel.

etcWebClient is a Unix/Linux server application that allows users to connect to the server from a browser. The web-based application includes an Editor, filesystem Treeview, and Console (etc).