The i2b2 source code is licensed under the Mozilla Public License version 2 with a healthcare disclaimer. This includes but is not limited to all code in the edu.harvard.i2b2.* package namespace.

The i2b2 Web Client uses three open source JavaScript Libraries:

  1. Yahoo! User Interface (YUI)
  2. Prototype
  3. D3,
  4. C3
  5. jQuery

The code and respective license agreements for the above libraries can be found in the js-ext directory.