XAMPP - XAMPP is a free and open-source cross-platform web server that is primarily used when locally developing web applications.
Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Anchor CMS - Free and lightweight blogging system
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Textpattern - Textpattern is an elegant content management system that is free, open source software.