Redmine

Redmine is a free, self-hostable, open-source project management and issue tracking web application built with Ruby on Rails. It supports multiple projects, role-based access control, issue tracking, Gantt charts and calendars, wiki/forums, time tracking, email notifications, and SCM integrations (Git, SVN, Mercurial, Bazaar), making it suitable for teams that need customizable workflows and full deployment control.