Pixelpost!

Many content management systems are focused on developer or site owner needs, but concrete5 is a CMS that truly delivers the best to both worlds. An in-context editing toolbar makes it easy to make changes as you navigate the live website. A truly MVC architecture and API make it easy for developers to truly use the CMS as building blocks.

Redaxscript is a modern, ultra lightweight and rocket fast Content Management System for SQLite, MySQL and PostgreSQL.

Craft gives you the tools to sculpt a content management experienceprecisely tailored to your site’s needs.

blogstrap.py is a simple, no frills blog content management system powered by Twitter's Bootstrap and web.py. It features most things you would come to expect from a simple blogging platform. You can browse posts by category or subcategory, see recent posts, and mark favorites. You can perform basic searches. It includes an About page. A basic tag system is implemented (popular tags are counted and shown). A simple comment system is available. A robust administrative interface is included where you can create and edit posts. You can upload images and include them on a Credits page, where you can properly attribute the original author. Comments can be set to on, off, or manual approval (moderated). Security has been a top priority since the beginning. Blogstrap.py has low resource usage and runs quickly on top of Lighttpd. »

Umbraco is a fully-featured open source content management system with the flexibility to run anything from small campaign or brochure sites right through to complex applications for Fortune 500's and some of the largest media sites in the world.

Directus. An awesome content management framework for everyone.

ZCMS simplifies content management by offering an elegant user interface, simple user management and permissions. We keep the core CMS as light, fast and flexible as possible.

Apostrophe is a design-driven, in-context CMS built on Node.js and MongoDB. It provides the tools to develop both simple and complex content-driven websites through simple templating and modular functionality. The editing experience is designed around the idea that content mangement should be easy, and therefore editors can create and manage their content right on the page itself.

GeniXCMS is a PHP Based Content Management System and Framework (CMSF). It's a simple and lightweight of CMSF. Very suitable for Intermediate PHP developer to Advanced Developer. Some manual configurations are needed to make this application to work.

Portal CMS is a free and open source content management system with a powerful integrated page builder.

Ionize is a free professional multilingual and user-friendly PHP Content Management System (CMS) based on CodeIgniter.Ionize it is a CMS multilingual, MVC plugin and admin full ajax.The template engine is based on xml syntax more faster than of smarty, twig or Dwoo.It is easy for developpement module in MVC based on CodeIgniter. More faster and ergonomic of pyrocms.- Events manager like hook system of wordpress or drupal- Native CCK impléments and extends fields.- User-role manager and permission- Language translate static and dynamic- Module manager- Template manager admin and front- Native Wysiwyg Editor TinyMCE- native Media manager- Optimized for SEO friendly and multilingualIf you know codeigniter you know Ionize. »

Modern, fast and secure content management system based on Bootstrap 3 using the latest technology.

CSZ CMS is an open source web application that allows to manage all content and settings on the websites. CSZ CMS was built on the basis of Codeigniter and design the structure of Bootstrap, this should make your website fully responsive with ease.