An Open-source bug tracking system which is infamous for its simple instalation, with a web-based interface. Written in Perl, with MySQL database.

The Bugtracker is a complete bug/issue management system, built around MySQL utilizing Java Servlets for a web based front end.

XPlanner is a web-based project planning and tracking tool for agile development teams

Teamwork is a software application specifically for team work management.As an application, Teamwork combines document management, groupware and project management features in a new perspective.

ITracker is a Java J2EE issue tracking system designed to support multiple projects with independent user bases. It supports features such as multiple versions and project components, detailed histories, per project user permissions and multiple email notifications.