Akeeba Backup Core is the successor to the now famous JoomlaPack component. In a nutshell, Akeeba Backup Core is an open-source backup component for the Joomla! CMS, quite a bit different than its competition. Its mission is simple: create a site backup that can be restored on any Joomla!-capable server.
JoomFish is the solution for your multilingual website if control over the translations matters for you. The core extension is free of charge and allows the translation of any content within your Joomla system. With an easy extension it is also possible to translate any 3rd party extension available for your favored CMS.
Hot Property allows you to manage properties in your website in an easy and effective way while using Joomla!. This powerful combination enable you to run a real estate website and use the most user friendly open source Web Content Management System (CMS) available today.
sh404SEF rewrites Joomla URL to user-friendly format (SEF URL or URL rewriting): mysite.com/index.php?option=com_content&Itemid=69&id=34... becomes mysite.com/en/sh404SEF-and-url-rewriting/list-of-available-plugins.html). It is also a security component. Page title and meta tags manager for every page.