Redmine is a flexible project management web application. Written using Ruby on Rails framework, it is cross-platform and cross-database. Redmine should run on most Unix, Linux, Mac and Windows systems as long as Ruby is available on this platform.

Overview

* Multiple projects support
* Flexible role based access control
* Flexible issue tracking system
* Gantt chart and calendar
* News, documents & files management
* Feeds & email notifications
* Per project wiki
* Per project forums
* Time tracking
* Custom fields for issues, time-entries, projects and users
* SCM integration (SVN, CVS, Git, Mercurial, Bazaar and Darcs)
* Issue creation via email
* Multiple LDAP authentication support
* User self-registration support
* Multilanguage support
* Multiple databases support

Main features

Multiple projects support
* Manage all your projects with one Redmine instance
* Each user can have a different role on each project
* Each project can be declared as public (visible by anyone) or private (visible by project members only)
* Modules (eg. wiki, repository, issue tracking, ...) can be enabled/disabled at project level

Multiple subproject support
* Manage related project parts as subprojects of a main project.

Flexible role based access control
* Define your own roles and set their permissions in a click

Flexible issue tracking system
* Define you own statuses and issue types
* Workflow transitions can be set up for each issue type and role through the web-based administration interface (a default configuration can be loaded when installing the application)

Gantt chart and calendar
* Automatic gantt and calendar based on issues start and due dates

Repository browser and diff viewer
* Existing repositories can be attached to each of your projects
* Redmine lets you browse their contents, view and search changesets
* Diff and annotate (aka blame) viewer
* Supported SCM: Subversion, CVS, Mercurial, Darcs, Bazaar and Git.

Multiple databases support
* Redmine runs with MySQL, PostgreSQL or SQLite