CalemEAM has been built with open source technologies and resources. They are listed below in no particular order.
- Kabuki Ajax Toolkit for CalemEAM's AJAX Web Client.
- Sencha Touch for Calem Touch for phones, tablets and desktops.
- PHP for CalemEAM Application Server.
- WAMP and XAMPP for tests and deployment.
- PEAR packages including IMAP, Cache Lite, JSON, SOAP, XML Serializer, and PHPUnit2
- JsUnit for client tests.
- Log4php for logging
- Phing for organizing server tests
- Silk Icon Set and Tango Icon Theme for this site, Calem Enterprise and Calem Community.
- WICK for input auto-completion
- SWFObject for flash dashboards.
- HessianPHP for offline and mobile clients
- PHPMailer for emails