Bugzero is a Web-based change management and issue tracking system used in a distributed team environment to track software bugs, hardware defects, test cases, or any other issues. It can also be used equally well as a helpdesk customer support, trouble ticketing, or email management system to collect and manage customer feedbacks, incidents, requests, and issues. It is easy to use, but still flexible and adaptive, and can be configured to fit to your organization's unique business process and workflow.
Roundup is an issue-tracking system that is simple to use and simple to install. It has command-line, Web, and email interfaces. It manages a number of issues (with flexible properties such as "description", "priority", and so on) and provides the ability to submit new issues, find and edit existing issues, and discuss issues with other participants. The system facilitates communication among the participants by managing discussions and notifying interested parties when issues are edited.
Yet Another Nopaste is an implementation of nopaste, allowing copy and paste of pieces of code from numerous languages for sharing using a simple URL, optionally protected with a password. It uses GeSHi as a highlighter back-end. It does not use a database. It is focussed on quick and simple usage.
Trac is an advanced tool for managing software development projects. It provides a simple wiki, an issue tracking system, and tight integration with the Subversion revision control system. However, it's also notorious for being hard to install. With the JumpBox for Trac, it takes about a minute to get trac running. Plus, with the built-in subversion and database backup system and the JumpBox Web-based administration console, it gives you all the basic tools you need to put it into production without ever touching a command line.
LibreSource is a versatile collaborative platform and software forge. It is adapted to the collaborative software development, groupware, community leading, e-archiving and Web publishing. On a single server, LibreSource can host several projects, several groups of users, and grant fine-grained access to the resources. Based on Java/J2EE technology, it is a modular Web server that users can customize online by combining resources and rights: wiki pages, forum, trackers, synchronizer, subversion, files, download areas, a dropbox, forms, etc.
Copper is a Web-based project management software tool designed to help creative teams manage clients, projects, tasks, files, budgets, and events. It has an HTML/AJAX front end. It is available with full source for a licence fee or as a SAAS hosted service (compatible with iPhone, but available via PC/Mac/Linux and a Web browser).
Devalot is a social networking application centered around software projects. It connects the user community with the development community and encourages participation and communication. It includes all the features you've come to expect in modern Web-based applications such as tagging, comments, and a wiki, as well as features you'd expect in project tracking software such as ticketing. It has features similar to some of those found in Trac, Collaboa, GForge, Mephisto, and Typo.
DBG is a PHP debugger and profiler. It makes it much easier to discover the origins of problems and bugs in PHP scripts. It's equipped with the ability to backtrace errors. It shows local and global variables as well as parameters which have been passed to all nested function calls at any point of execution. Among other things, it allows you to execute scripts in a step-by-step manner, set breakpoints (including conditional ones), evaluate expressions, and watch variables. The profiler allows you to find bottlenecks in PHP code at the functions level as well as the modules level and even the source lines level.