| System | Creator | License | Implementation language | Back end | Launch date | Refs |
| Apache Bloodhound | Apache Software Foundation | | Python | MySQL, PostgreSQL, SQLite | 2012 | |
| Assembla Tickets | Assembla | Proprietary, hosted. Available for free for open source projects | Ruby | MySQL | 2008 | |
| Axosoft | Axosoft LLC | | C#,.NET | SQL Server | 2002 | |
| Bugzilla | Mozilla Foundation | | Perl | MySQL, Oracle, PostgreSQL, SQLite | 1998-09-19 | |
| Debbugs | Debian | | Perl | Flat file, Berkeley DB indexes | Between 1994 and 1999 | |
| Faveo Helpdesk | Ladybird Web Solution | | PHP | MySQL | 2015 | |
| FogBugz | Glitch | Saas | ASP on Windows, PHP on macOS, FreeBSD, and Linux | SQL Server, MySQL | 2000 | |
| Fossil | D. Richard Hipp | | C | SQLite | 2006 | |
| FusionForge | Various | | PHP | PostgreSQL | 2009-02 | |
| GLPI | INDEPNET | | PHP | MySQL | 2003-11-17 | |
| GNATS | Free Software Foundation | | C, Web Front-end In Perl | Text files with custom daemon/search engine | 1992 | |
| HP Quality Center | Hewlett-Packard, formerly Mercury Interactive | | .NET, Java | Oracle, SQL Server | 1995 | |
| IBM Rational ClearQuest | Rational Software | | kernel: executables for several platforms; hooks: Perl and Visual Basic | IBM DB2, Oracle, SQL Server, Access, Sybase ASA | 1998 | |
| IBM Rational Team Concert | Rational Software | | kernel: Java; API: Java | IBM DB2, Oracle, SQL Server, Apache Derby | 2008 | |
| Jira | Atlassian | . Free community licenses for open source and academic projects | Java | MySQL, PostgreSQL, Oracle, SQL Server | 2002 | |
| Launchpad | Canonical Ltd. | | JavaScript, Python | PostgreSQL | 2004-01 | |
| MantisBT | Various | | PHP | ADOdb | 2000 | |
| Microsoft Dynamics CRM | Microsoft | | .NET | Microsoft SQL Server | 2003 | |
| OpenProject | OpenProject Foundation e.V. | | Ruby, JavaScript | MySQL, PostgreSQL, MariaDB | 2010 | |
| org-mode | Carsten Dominik | | Emacs | Flat file | 2003 | |
| OTRS | OTRS | | Perl, JavaScript | MySQL, PostgreSQL, Oracle, SQL Server | 2002 | |
| Phabricator | Facebook | | PHP | | 2010 | |
| Pivotal Tracker | Pivotal Labs | Proprietary, free version for public projects, non-profits and academic institutions | Ruby | Ruby on Rails, MySQL, Memcached | 2008 | |
| Redmine | Jean-Philippe Lang | | Ruby | MySQL, PostgreSQL, SQLite | 2006 | |
| Request Tracker | Best Practical Solutions, LLC | | Perl | MySQL, PostgreSQL, Oracle, SQLite | 1999-10-13 | |
| Roundup | Ka-Ping Yee, Richard Jones | | Python | SQLite, MySQL, PostgreSQL, Berkeley DB | 2001 | |
| StarTeam | originally Starbase Corporation, currently Borland | | C++, Java, etc. | SQL Server recommended, Oracle, DB2 supported | | |
| Supportworks | Hornbill Systems | | C++ and PHP | SQL Server, MySQL, Oracle, Sybase | 1994 | |
| SysAid | SysAid Technologies | | C#, Java | Derby, Microsoft SQL Server, MySQL, Oracle | 2002 | |
| Team Foundation Server | Microsoft | | .NET | MS SQL Server 2005 & 2008 | 2005 | |
| TestTrack | Seapine Software | | C++, Qt4, JavaScript | Oracle, PostgreSQL, SQL Server, SQLite | 1996 | |
| Trac | Edgewall Software | | Python | SQLite, PostgreSQL, MySQL | 2006-10-01 | |
| TrackerSuite.Net | Automation Centre | | C# | SQL Server, SQL Server Express | 2006 | |
| Trello | Atlassian | Saas | Node.js | MongoDB | 2011 | |
| Tuleap | enalean | | php | LAMP, MySQL | 2011 | |
| Twproject | Open Lab | Proprietary, some parts LGPL | Java | all relational | 2003 | |
| Usersnap | Usersnap GmbH | | Python, JavaScript | MongoDB, | 2013 | |
| Wrike | Wrike, Inc. | | Java | PostgreSQL | 2006 | |
| YouTrack | JetBrains s.r.o. | Proprietary, stand-alone and hosted, free version, free for open source projects | Java | JavaScript and Kotlin | 2009 | |
| System | Creator | License | Implementation language | Back end | Launch date | Refs |
| System | Documentation integration/generation, reporting | Test planning integration | Customizable workflow | Unicode support | Custom fields | SLA | Plugin API | Multiple projects | Full-text search | Indexed full-text search | Indexed file search | Edit conflict warning |
| Apache Bloodhound | , integrated wiki | | | | | | | | | uses Whoosh | | |
| Assembla Tickets | , Wiki syntax, email notification, linking to Subversion commits, document manager, charts, reports, notifications | | | | | | | | | | | |
| Axosoft | , Team Wiki, Burndown, GitHub and TortoiseSVN integration, dashboards, custom reports for OnPremises, e-mail notifications and alerts, customer portal, RSS | | | | | | | | | | | |
| Bugzilla | , reporting: integrated reports and charts, scheduled reports by mail | | | | | | | | | When using MySQL MyISAM or Oracle Database but not PostgreSQL | | |
| Debbugs | | | | | | | | | | | | |
| Faveo Helpdesk | , Integrated Social Media, In-built Knowledge Base and Reporting | | | | | | | | | | | |
| FogBugz | , Integrated wiki | | | | | | | | | | | |
| Fossil | , Integrated Wiki in addition to integrated versioned project documentation via web ui. | | | | | | | | | | | |
| FusionForge | , integrated Mediawiki, discussion forums, news blogs, email integration, export to CSV, reporting graphs | | | | | | | | | | | |
| GLPI | , Contains a proprietary knowledge base of sorts | | | | | | | | | | | |
| GNATS | | | | | | | | | | | | |
| HP Quality Center | | | | | | | | | | | | |
| IBM Rational ClearQuest | , reporting: integrated charts and interface to Crystal Reports | | | | | | | | | uses Solr and Lucene | | |
| IBM Rational Team Concert | | | | | | | | | | | | |
| Jira | , Dashboard with reporting widgets Excel, Word, customizable charts, Confluence | | | | | | | | | Uses Lucene | | |
| Launchpad | | | | | | | | | | | | |
| MantisBT | , Integration of MediaWiki, DokuWiki, XWiki | | | | | | | | | | | |
| Microsoft Dynamics CRM | , reporting: integrated charts and reports, export to Excel, Mail Merge | | | | | | | | | | | |
| org-mode | , org-mode has built-in export to HTML, Latex,.md and literate programming capabilities for multiple languages in a single document | | | | | | | | | | | |
| OTRS | , Advanced reporting, configurable dashboards | | | | | | | | | | | |
| Phabricator | , integrated wiki and limited burn down charts | | | | | | | | | | | |
| Pivotal Tracker | , real time collaborative story backlog, integrated reports, email notification | | | | | | | | | | | |
| Redmine | , integrated wiki, discussion forums, news blogs, email integration, calendars, Gantt Charts, RSS, export to PDF, export to Excel/CSV | | | | | | | | | , when using PostgreSQL | | |
| Request Tracker | , MediaWiki | | | | | | | | | | | |
| Roundup | , wiki can be integrated or linked | | | | | | | | | with issues | | |
| StarTeam | | | | | | | | | | | | |
| Supportworks | - Integrated reporting wizard, customizable PHP reporting tool, dashboard, optional interface with Crystal Reports, export to Microsoft Excel/CSV, knowledge base, optional asset management tool | | | | | | | | | | | |
| SysAid | - LDAP/Email/Calendar integration, integrated Asset Management, integrated reporting, SSO, custom fields, export to CSV/PDF, KB | | | | | | | | | | | |
| Team Foundation Server | - workflow definitions, process documentation | | | | | | | | | | | |
| Teamwork | | | | | | | | | | Uses Lucene | | |
| TestTrack | - Advanced reporting, integrated charts, export to Excel, workflow with triggers | | | | | | | | | | | |
| Trac | , integrated wiki | | | | | | | | | | | |
| TrackerSuite.Net | . Dashboards. Graphical reports. Integration with Crystal Reports. Reports can be exported to Microsoft Excel. | | | | | | | | | | | |
| Tuleap | , Kanban boards, Scrum planning and burndown charts, pies, Gantt, barrs, cardwall, Document Manager with approval workflow and fine grained permissions, wikis | | | | | | | | with plugin fulltext | with plugin fulltext | | |
| Usersnap | . Dashboards, Help Center. | | , via Tags. | | | , available for enterprise plans | | | | | | |
| Wrike | , real-time customized reports, export to Excel, scheduled reports by mail, alerts, discussions, Gantt charts, | | | | | | | | | | | |
| YouTrack | : Wiki syntax, custom workflow, custom issue attributes, notifications, email integration, reports, export to HTML and CSV, integration with VCSs. | | | | | | | | | | | |
| System | Dynamic documentation integration/generation | Test planning integration | Customizable workflow | Unicode support | Custom fields | SLA | Plugin API | Multiple projects | Full-text search | Indexed full-text search | Indexed file search | Edit conflict warning |
