Trac - Trac is a project management and bug/issue tracking system. Provides an interface to Subversion and an integrated wiki.
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.
Gitea - A painless self-hosted Git service
Redmine - Flexible project management web application
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
BugHerd - BugHerd: The Website Feedback Tool for Agencies