GNATS
The IT Problem Report Management System (PRMS), TkGnats Home Page, Web resources about GNATS, the GNU Bug Tracking Sy
AceProject
Offers free web-based software for project management, bug tracking and timesheet management.
AdminLog
AdminLog is a general purpose data management utility for bug tracking, personal task management and even project level management across a large group.
Agstools
BugTrack, simple free bugtracking system based on perl5 and any DBI compliant database.
Bug-A-Boo
An open source bug tracking system running on any web server allowing the execution of tdbengine binaries. It is dristributed unter the terms of the GPL.
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#.
Bugzilla
Bug tracking used by the Mozilla projects. Inherently web-based, written in Perl, and uses MySQL as its database back-end. Open-Source. Updates available via CVS.
Debian Bug Tracking Software
GPL'd Perl-5 scripts which maintain a database of problem reports. Input by email, listings via webserver.
elementool
A free bug tracking and managing tool, on the Web, supported by advertisements. Helps developers and testers to track and manage bugs and features. Installation is not required.
GIFFT
Web based bug tracking system running on Windows, Linux, Unix as a CGI for Apache or other web server.
IssueTrackerProduct
Open-source web-based issue/bug tracker, written in Python.
JitterBug
A web based bug tracking system, originally developed by the Samba Team to handle bug tracking, problem reports and queries, now available under the GNU General Public License. Operates like a communal Web based email system - no database back end required.
Keystone
Data stored in a SQL database, accessed by any Web browser which understands forms, tables, and cookies. By StoneKeep consulting. Free for under 10 users.
Roundup
A simple-to-use and -install issue-tracking system with command-line, web and e-mail interfaces.
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.
Trac
Trac is a web-based software project management and bug/issue tracking system. It provides an interface to Subversion and an integrated wiki.
WREQ
Work Request, a distributed request/problem tracking system, written in Perl 5. Access by Web or email.