PluXml!

ImpressPages is a PHP framework with admin panel. A new MVC engine is under the hood so you can customize ImpressPages in no time. Write your own plugins and themes to suit your and customers’ needs best. Both website layout and administration interface are user friendly and simply gorgeous.

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. »

Symphony is an XSLT-powered open source content management system

Web Start Today is the small business owner’s ticket to Internet success. With our easy-to-use Website Builder, hands-on business owners can create and customize a feature-rich website in few easy steps and go live the same day for free.

FluxBB is a fast, light, user-friendly forum application for your website. FluxBB was designed as a lighter, faster alternative to some of the traditional feature heavy forum applications. It is easy to use and has a proven track record of stability and security making it an ideal choice of forum for your website. FluxBB produces valid XHTML 1.0 Strict pages, supports UTF-8 and is Free to use (GNU GPL)

SPIP is a publishing system for the Internet in which great importance is attached to collaborative working, to multilingual environments, and to simplicity of use for web authors. It is free software, distributed under the GNU/GPL licence. This means that it can be used for any Internet site, whether personal or institutional, non-profit or commercial.

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.

e107 is a portal or content management system powered by PHP and MySQL that gives you a totally dynamic and professional website out of the box. Its simple wizard type install process will have you up and running in 5 minutes, and its free

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.