Mantis Bug Tracker is a free and open source, web-based bug tracking system. The most common use of MantisBT is to track software defects.
License: Open Source
Request Tracker (RT) is a powerful and highly customizable ticketing system suitable for IT service management, while Mantis Bug Tracker is known for its user-friendliness and integration capabilities, making it ideal for software development teams. Both have their strengths, but RT is better for complex workflows, whereas Mantis is preferred for straightforward bug tracking.