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.
Redmine - Flexible project management web application
Jira Clone - A simplified Jira clone built with React/Babel (Client), and Node/TypeScript (API).
jtrac - JTrac is an open source and highly customizable issue-tracking web-application written in Java.
GoodDay - Good Day - Inspiring work management
Taiga - Project management platform for agile developers & designers