Kwok Information Server

Open source management system for issues, contacts, hardware, software etc.Uses Java, Tomcat and PostgreSQL, the free version is limited to one user.

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. Jira Software supports any agile project management methodology for software development Jira Software is an agile project management tool that supports any agile methodology, be it scrum, kanban, or your own unique flavor.

RedBooth

Redbooth, the online collaboration software for team and task management. Be productive with project management tools like business chat and file sharing. Project Management for modern teams. Redbooth is a task and project management platform that provides a single place for team collaboration tasks, discussions and file sharing.

Redmine

Redmine is a flexible project management web application. Written using the Ruby on Rails framework, it is cross-platform and cross-database. Redmine is open source and released under the terms of the GNU General Public License v2 (GPL).

Trello

Infinitely flexible. Incredibly easy to use. Great mobile apps. It’s free. Trello keeps track of everything, from the big picture to the minute details.

YouTrack