Redmine is an open source project management and bug-tracking web application. Redmine is written using Ruby on Rails framework. Redmine design is significantly influenced by Trac, a similar software package.

Overview
- Multiple (sub)projects support
- Role based access control
- Flexible issue tracking system
- Gantt chart and calendar
- News, documents & files management
- Time tracking
- SCM integration (SVN, CVS, Git, Mercurial, Bazaar and Darcs)
- Multiple LDAP authentication support
- Multilanguage support
- Multiple databases support
- Per project wiki and forums