Mantis - php/MySQL/web based bugtracking system. Trac - Web-based software project management and bug/issue tracking system. Provides an interface to Subversion and an integrated wiki. Debian Bug Tracking Software - GPL'd Perl-5 scripts which maintain a database of problem reports. Input by email, listings via webserver. Teamatic - Free web-based bug tracking, ticketing and project resource tracking system. Designed to meet the requirements of most Information Technology, Consulting and Engineering projects. Roundup - A simple-to-use and -install issue-tracking system with command-line, web and e-mail interfaces. Bugs Online - A free (GPL) bug tracking system for use with Microsoft IIS, Access and ASP. BugTracker.NET - Opensource web-based bug tracker written using ASP.NET and C#. GIFFT - Web based bug tracking system running on Windows, Linux, Unix as a CGI for Apache or other web server. Bug-A-Boo - An open source bug tracking system running on any web server allowing the execution of tdbengine binaries. It is distributed under the terms of the GPL. phpBugTracker - A web-based bug tracking system built in PHP. RT: Request Tracker - A free web and email-based bug tracking and trouble ticketing system. Features list, documentation screen shots, and download. Bugdar - Open source PHP-MySQL bug tracking system that has customizable CSS/XHTML templates, e-mail notifications, Atom syndication and internationalization support. VSBT: Very Simple Bug Tracking - A simple bug tracking system designed for individual developers or small groups, released under the GNU General Public License. Flyspray - Open source, web based bug tracking system written with a focus on ease-of-use. Bug-Buddy - A graphical bug reporting utility for GNOME. It allows users to easily make quality bug reports.