GoRetro is an agile sprint retrospective tool making the entire retro process seamless, simple, fun, colorful, productive, and unlimited...members, teams, boards.
It arrives with premade retro format templates, action items, board privacy settings, happiness index, user roles, and much more.
Parabol - Agile Meeting Co-Pilot
openDesktop.org - The website openDesktop.
Sprints by Ora - Simple, but powerful Agile Project Management
SourceForge - The Complete Open-Source and Business Software Platform.
FunRetro - Our fun, simple, and intuitive tool will revolutionize your teams collaboration process. Try it today for free and discover how fun retrospectives can help you.
Freecode - Freecode (formerly known as Freshmeat) is one of the legit open source development platforms that will be the key for developers and programmers to have a streamlined process via having enhanced collaboration and coding leverages.