Fossil - Simple, high-reliability, distributed software configuration management
Mercurial SCM - Mercurial is a free, distributed source control management tool.
Termlets - "1970's style terminal software, for the rest of us."
Git for Windows - We bring the awesome Git SCM to Windows
Bazaar - Bazaar is a tool for helping people collaborate.
Stylecow - CSS processor to fix your css code and make it compatible with all browsers