GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Redmine - Flexible project management web application
Bugs Everywhere - Bugs Everywhere is a “distributed bugtracker”, designed to complement distributed revision control systems.
Mantis Bug Tracker - Mantis Bug Tracker is a free and open source, web-based bug tracking system.
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
Bugfender - Cloud logging for your apps, not only crashes matter