1. Redmine project management and defect tracking tool
Official website: https://www.redmine.org/
Redmine is an open source, web-based project management and defect tracking tool. It uses calendar and Gantt chart to assist project and progress visualization, and it supports multi-project management. Redmine is a free and open source software solution that provides integrated project management features, issue tracking, and support for multiple version control options.
2. WebIssues issue tracking system
Official website: https://webissues.mimec.org/
WebIssues is an open source, multi-platform system for issue tracking and team collaboration. It can be used to store, share and track issues with various attributes, descriptions, comments and file attachments. It's easy to install and use, yet packed with features and highly customizable.
3. Fossil distributed software configuration management
official website: https://www.fossil-scm.org/
Fossil is a simple, highly reliable, distributed software configuration management system. In addition to distributed version control features such as Git and Mercurial, Fossil also supports bug tracking, wikis, forums, email alerts, chat, and technical notes.
4. BugZilla defect tracking system
official website: https://www.bugzilla.org/
Bugzilla is a powerful and mature defect tracking system (or bug tracking system). A defect tracking system allows a team of developers to efficiently track unresolved defects, issues, issues, enhancements, and other change requests in a product. Simple defect tracking capabilities are often built into Github or other integrated source control environments, either web-based or locally installed.
5. Mantis BUG Management System
Official website: https://mantisbt.org/
MantisBT makes collaboration with team members and clients easy, fast and professional.
MantisBT is an open source issue tracker that offers a delicate balance between simplicity and functionality. Users can get up and start managing their projects in minutes, while collaborating effectively with their teammates and clients.
6. Trac Bug Management System
Official website: https://trac.edgewall.org/
Trac is an enhanced wiki and issue tracking system for software development projects. Trac takes a minimalistic approach to web-based software project management. The mission is to help developers write great software while getting out of the way. Trac should minimize the impact on the team's established development process and strategy.
It provides interfaces to Subversion and Git (or other version control systems), an integrated wiki, and convenient reporting tools.
Seven, git-bug Embedded in Git's distributed bug tracker
git-bug is a distributed bug tracker that directly utilizes the features of Git, and can directly push bug items remotely to collaborate with others just like normal operations on Git commits and branches. Developers do not need to rely on a web server to handle project bugs, and can also view and modify bug reports offline.
git-bug uses Git internal storage, so you don't need to add any files to your project.