Pyrocms/pyrocms. PyroCMS » The Content Management System built for you! Home : FUEL CMS - A CodeIgniter Content Management System. No-CMS | Free CodeIgniter based CMS Framework. GoFrendiAsgard/No-CMS. CMS Canvas | Open Source CMS built on CodeIgniter. ExpressionEngine. Ionize CMS, native multilingual Content Management System | Ionize CMS.