* [Apache Bloodhound](https://bloodhound.apache.org/) - Manage software products, Keep track of features, tasks and bugs `Apache License``Python`
* [bulldog](https://github.com/infews/bulldog) - HTML5 task manager, built on todo.txt `MIT``HTML5`
* [Bumpy Booby](http://bumpy-booby.derivoile.fr/) - A simple, responsive and highly customizable PHP bug tracking system. ([Source code](https://github.com/piero-la-lune/Bumpy-Booby)) `MIT``PHP`
* [ChiliProject](https://www.chiliproject.org/) - a web based project management system. ([Source code](https://github.com/chiliproject/chiliproject)) `GNU GPLv2``Ruby`
* [Flyspray](http://www.flyspray.org/) - uncomplicated, web-based bug tracking system ([Source code](https://github.com/Flyspray/flyspray))
* [Gaskit](https://github.com/bkeepers/gaskit) - a git-backed issue tracker. It uses a branch in your local git database to store the tickets.
* [HabitRPG](http://habitrpg.com/) - A habit tracker app which treats your goals like a Role Playing Game. ([Source code](https://github.com/lefnire/habitrpg))