Redmine is a web-based project management tool created with the Ruby on Rails framework with small groups in mind. With a wiki and forum for each project, it supports many projects. In addition to managing files and documents, it may also be used as an issue tracker, and user rights can be provided based on responsibilities. Redmine has the ability to make Gantt charts, calendars, RSS feeds, and email alerts. Redmine can be used as a time tracking tool by groups, who can view time by user, issue, or activity.