Connecting content between your Drupal and Joomla! sites is now possible. We have developed this component which will let you share content from your Drupal site to as many Joomla! sites as you want. Simply install the Drupal API plugin on your Drupal site and the Joomla! plugin on your Joomla! sites. Once you have set everything up you can use Drupal tags in Joomla! to display Drupal articles in Joomla! articles.
Using some simple short code you can embed Drupal articles inside your Joomla! articles.
You can follow our documentation here.