Xterm.js is a full xterm clone, written in JavaScript.

It is used at SourceLair to help people develop their applications in their browsers.

Xterm.js supplies a modular, event-based interface that lets developers build addons and themes on top of it.

Since xterm.js is typically implemented as a developer tool, only modern browsers are supported officially. Here is a list of the versions we aim to support:

• Chrome 48+
• Edge 13+
• Firefox 44+
• Internet Explorer 11+
• Opera 35+
• Safari 8+

xterm.js may work on earlier versions of the browsers but these are the browsers we strive to keep working.

To launch the demo simply run:

npm install
npm start

Then open http://0.0.0.0:3000 in a web browser (use http://127.0.0.1:3000 is running under Windows).

Addons are JavaScript modules that attach functions to the Terminal prototype to extend its functionality. There are a handful available in the main repository in the addons directory, you can even write your own (though they may break when the internals of xterm.js change across versions).

To use an addon, just include the JavaScript file after xterm.js and before the Terminal object has been instantiated. The function should then be exposed on the Terminal object:

<script src="node_modules/src/xterm.js"></script>
<script src="node_modules/addons/fit/fit.js"></script>

var xterm = new Terminal();
// init code...
xterm.fit();

To contribute either code, documentation or issues to xterm.js please read the Contributing document before.

The development of xterm.js does not require any special tool. All you need is an editor that supports JavaScript and a browser (if you would like to run the demo you will need Node.js to get all features).

It is recommended though to use a development tool that uses xterm.js internally, to develop for xterm.js. Eating our own dogfood has been proved extremely beneficial for this project. Known tools that use xterm.js internally are:

Visit https://lair.io/sourcelair/xterm and follow the instructions. All development will happen in your browser.

Download Visual Studio Code, clone xterm.js and you are all set.

If you contribute code to this project, you are implicitly allowing your code to be distributed under the MIT license. You are also implicitly verifying that all code is your original work.

Copyright (c) 2014-2016, SourceLair, Private Company (www.sourcelair.com) (MIT License)

Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)