Redmine is an open source web-based project management and issue tracking tool used by businesses, non-profits, and other organizations. It is used to manage projects, track issues, and collaborate with team members. It can be accessed from anywhere, providing a single centralized place for teams to manage their projects. Redmine provides an intuitive user interface, allowing users to quickly create and manage projects, assign tasks, track progress, and report results. It also offers a comprehensive set of features such as project and sub-project management, Gantt chart for project scheduling and tracking, wiki and document management, time tracking, and more. Redmine is easily customizable and can be integrated with third-party applications, allowing users to make the most of their project management software.
Redmine is based on repository management. Taiga is more "project" management. IE: does not deal with code at all.