Attention

Version 3 is now the current version of MathJax. This document is for version 2.

Third-party Extensions

MathJax can load extensions (and configurations) from arbitrary locations. This allows authors and developers to easily integrate custom code.

Custom extension path configuration

Usually, third-party extensions have to be specified with their full paths (and matching loadComplete calls); this limits portability. To simplify this process, the MathJax configuration can include (possibly multiple) third-party locations for easier reference.

To specify the URL, set MathJax.Ajax.config.path["Extra"] in your configuration file, for example,

<script type="text/x-mathjax-config">
  MathJax.Ajax.config.path["Extra"] = "http://my.extra.com/mathjax/extra";
</script>

or equivalently,

<script type="text/javascript">
  window.MathJax = {
    AuthorInit: function () {
          MathJax.Ajax.config.path["Extra"] = "http://my.extra.com/mathjax/extra";
        }
  };
</script>

Configuring this path will allow you to load extensions using the [Extra] prefix. To continue the example, the following configuration would then load http://my.extra.com/mathjax/extra/spiffy.js.

MathJax.Hub.Config({
  extensions: ["[Extra]/spiffy.js"]
});

Note that the extension’s loadComplete call needs to match this path, i.e., spiffy.js should end with

MathJax.Ajax.loadComplete("[Extra]/spiffy.js");

MathJax Third-Party extension repository

We host a third-party extension repository on a CDN. This repository allows developers to make their custom extensions easily available to all MathJax users.

The code of the repository is hosted on Github at github.com/mathjax/MathJax-third-party-extensions and is mirrored to a CDN at cdn.mathjax.org/mathjax/contrib/

To add your extension, please follow the guidelines of the repository. To add the third party repository to your configuration use

<script type="text/x-mathjax-config">
  MathJax.Ajax.config.path["Contrib"] = "//cdn.mathjax.org/mathjax/contrib";
</script>

or equivalently,

<script type="text/javascript">
  window.MathJax = {
    AuthorInit: function () {
          MathJax.Ajax.config.path["Contrib"] = "//cdn.mathjax.org/mathjax/contrib";
        }
  };
</script>