joomla-cms by joomla

An advanced yet user-friendly content management system, based on the full stack Symfony framework combined with a whole host of community bundles. It provides a full featured, multi-language CMS system with an innovative page and form assembling process, versioning, workflow, translation and media managers and much more. Maintained by Kunstmaan on GitHub, where it has earned 412 stars from the community.

Core framework that implements the functionality of the Sulu content management system. Maintained by sulu on GitHub, where it has earned 1,346 stars from the community.

Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS powered by PHP, Markdown, Twig, and Symfony. Maintained by getgrav on GitHub, where it has earned 15,613 stars from the community.