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Life is full of bugs.
No matter how carefully planned, no matter how much time went into design, any project is going to have unforseen issues when the rubber hits the road in the implementation stage. And that's okay. Perhaps the best measure of resiliency for any organization is not how well they handle things when everything is functioning as planned, but rather, how they handle the speed bumps when they come along.
A critical tool for any project management workflow, especially in the software development world, is an issue tracker. The basics are simple; allowing bugs to be opened, tracked, and resolved in a collaborative manner, while making it easy to follow the progress. Beyond the basic functionality, there are a lot of options focused on meeting specific needs, features, and use cases, including software development and beyond. You may be familiar with hosted versions of these tools, like JIRA, GitHub Issues or Launchpad, some of which themselves have connections to the open source community.
So let's take a look at four excellent choices for managing bugs and issues, all open source and all easy to download and host yourself. To be clear, there's no way we could possibly list every issue tracking tool here; instead, these are four of our favorites, based on feature richness and the size of the community behind the project. There are others, to be sure, and if you've got a good case for your favorite not listed here, be sure to let us know which is your favorite tool and what makes it stand out to you, in the comments below.
Redmine is a popular issue tracking tool built on Ruby on Rails and dating back to 2006. Similar in many regards to Trac, another one of our favorites, Redmine is capable of managing multiple projects and integrates with a number of version control systems. In addition to basic issue tracking, Redmine also offers forums, wikis, time tracking tools, and the ability to generate Gantt charts and calendars to track progress.
Redmine is fairly flexible in its setup, supporting numerous database backends and dozens of languages, and is customizable as well, featuring the ability to add custom fields to issues, users, projects and more. It can be further customized with a number of community-created plugins and themes.
An online demo is available if you’d like to try it out. Redmine is licensed as open source under the GPL version 2; the source code can be found in the project’s subversion repository or mirrored on GitHub.
Bugzilla is another popular development tool with issue tracking capabilities. As you might have guessed from the name, Bugzilla was originally created by the Mozilla Foundation to track bugs in the development of the then-called Netscape Communicator suite. Ported to Perl from its original Tcl routes for greater accessibility, Bugzilla is one of the older and more widely adopted issue tracking systems, as it is used by a number of well-known open source projects like GNOME, KDE, and the Linux kernel itself.
Sporting a number of advanced tools, from notifications to duplicate bug detection to shared searches, Bugzilla is certainly a more feature-rich option. Bugzilla has an advanced search system along with a comprehensive reporting tool, capable of generating charts and automated scheduled reports. Like Redmine, Bugzilla is extensible and customizable, both in the fields themselves as well as featuring the ability to create custom workflows for bugs. It also works with many database backends, and many different languages are supported out of the box.
Trac describes itself as taking a minimalistic approach to web-based software project management, but don’t confusing minimalism with a lack of features.
Written in Python, Trac tightly integrates its bug tracking capabilities with its wiki system and a revision control system of your choosing. It features project management capabilities like generating milestones and roadmaps, a customizable reporting system, timelines, support for multiple repositories, built-in spam filtering, and is available in many common languages. Like the other bug trackers we have looked at, has a number of plugins available for it extending its base feature set even further.
Trac is made available as open source under a modified BSD license, though older versions were released under the GPL. You can view Trac’s source in a self-hosted repository or check out their roadmap for future plans.
Mantis is the final tool we’ll look at in this collection, a PHP-based bug tracker with a sixteen year history. Another bug tracker with support for many different revision control systems and an event-driven notification system, Mantis has a similar feature set to other tools here. While it does not itself contain a wiki, it integrates with many popular wiki platforms and is localized into many languages.
Mantis is licensed as open source under the GPL version 2; you can browse its source code on GitHub or check out the self-hosted roadmap for future plans. For a demo, you can check out their own internal bug tracker.
As we notes, these four are not the only options. Looking to explore some others? Apache Bloodhound, Fossil, The Bug Genie, and many alternatives all have dedicated followings, each with different strengths and weaknesses. In addtion, some of the tools in our project management roundup have issue tracking capabilities. So, which is your preferred tool for tracking and squashing bugs?