Flyspray is an easy to use bug tracking system for those who don't require all the complexities of something like Bugzilla. It supports multiple projects and users, file attachments, and Instant Messaging (Jabber) notifications.
The BugPort system is an open-source, freely available, web-based system to manage tasks and defects throughout the software development process. BugPort is written with the PHP language using its object-oriented capabilities and is in use by INCOGEN for internal management of software development and QA.
paBugs is a bug tracker designed to help developers organize bugs in their programs/scripts. It has an easy to use interface making browsing the database simple and a full featured easy to use admin center for managing the bug database. Written in PHP and using MySQL for the data backend, paBugs is a fast, server/CPU-friendly script. Main features include: Categories and Subcategories, Multiple Admin usernames, Admin Center, Admins can choose to receive e-mail notification when a new bug is reported, Anybody can report bugs, Reported bugs will not appear in the database until an admin approves it, Search database, and more.
