This article is a comparison of notable issue tracking systems used primarily for help desks and service desks rather than for bug tracking or project management.
| System | Creator | License | Implementation language(s) | Back end | Launch Date |
|---|---|---|---|---|---|
| Faveo Helpdesk | Ladybird Web Solution | Proprietary | PHP | MySQL | 2015 |
| GLPI | INDEPNET | GPL | PHP | MySQL | 2003 |
| HEAT | FrontRange Solutions | Proprietary | .NET | Microsoft SQL Server, Oracle | 1990 |
| Jira Service Management | Atlassian | Proprietary, Free for non-commercial use; hosted & on-premises | Java | MySQL, PostgreSQL, Oracle, Microsoft SQL Server | 2003 |
| OTRS | OTRS | Proprietary | Perl | MySQL, PostgreSQL, Oracle, Microsoft SQL Server | 2001 |
| osTicket | osTicket | GPL | PHP | MySQL | 2003 |
| Znuny | Znuny GmbH | GPL-3.0 | Perl | MySQL, PostgreSQL, Oracle, Microsoft SQL Server | 2021 |
| Request Tracker | Best Practical Solutions, LLC | GPL | Perl | MySQL, PostgreSQL, Oracle | 1999-10-13 |
| Roundup | Roundup-Team | MIT, Zope | Python | MySQL, PostgreSQL, SQLite, Berkeley_DB | 2001-08-18 |
| Spiceworks | Spiceworks IT Software | Proprietary; free for use | Ruby | sqlite | 2006 |
| Supportworks | Hornbill Systems | Proprietary | Visual C++ and PHP | Microsoft SQL Server, MySQL, Oracle, Sybase | 1994 |
| SysAid | SysAid Technologies | Proprietary | Java, C# | MySQL, Derby, Oracle, Microsoft SQL Server | 2002 |
| Tracker | Automation Centre | Proprietary | Groupware, requires Lotus Notes | IBM Lotus Domino | 2001 |
| TrackerSuite.Net | Automation Centre | Proprietary | C# | Microsoft SQL Server | 2006 |
| Trac | Edgewall Software | BSD-3-Clause | Python | MySQL, PostgreSQL | 2004 |
| Zammad | Zammad GmbH | AGPL v3 | Ruby | MySQL, PostgreSQL | 2016 |