TrackDuck - Visual feedback for web design and development.
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.
zipBoard - ZipBoard is a web-based visual bug tracking & issue tracking tool that helps developers, testers and project managers collaborate during website and elearning development.
Redmine - Flexible project management web application
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Trac - Trac is a project management and bug/issue tracking system. Provides an interface to Subversion and an integrated wiki.