What is the difference between Jira and Redmine?

Jira is a proprietary, enterprise-grade issue tracking and agile project management platform developed by Atlassian, featuring built-in Scrum and Kanban boards, advanced reporting, and seamless integration with the wider Atlassian ecosystem under commercial licensing. 

Redmine is a free, open-source, Ruby on Rails–based project management and issue-tracking tool emphasizing self-hosting flexibility, hierarchical projects, built-in Gantt charts and calendars, and extensibility through community-driven plugins. 

As a result, organizations seeking polished UX, enterprise support, and rich analytics tend to choose Jira despite licensing costs, while teams prioritizing customizability, budget-friendliness, and open-source control often opt for Redmine.