anyone has this extension for Joomla
jCart for OpenCart
jCart for OpenCart, by softPHP - Joomla Extension Directory
jCart is a standalone Joomla ecommerce component which includes OpenCart features.It has same functionality as JooCart. jCart allows for displaying ecommerce content(including OpenCart features) within the Joomla! component-area but also ships with Joomla! modules and Joomla plugins.
extensions.joomla.org