Trac - Trac is a project management and bug/issue tracking system. Provides an interface to Subversion and an integrated wiki.
Stylecow - CSS processor to fix your css code and make it compatible with all browsers
Fossil - Simple, high-reliability, distributed software configuration management
CSS Next - Use tomorrow’s CSS syntax, today.
Open Authenticator - A trusted open-source Authenticator. Formerly known as SmartWatch2 Authenticator free.
Garden (Clojure) - Unlike the mini-languages that are other pre/post-processor options, Garden leverages the full power of the Clojure programming language for CSS.