Wekan — open-source kanban
January 23, 2016 at 2:31:13 PM GMT+1 - permalink - - https://wekan.io/

Someone - Wasn’t Someone supposed to take care of that?
October 7, 2015 at 10:32:51 AM GMT+2 - permalink - - https://www.someone.io/

Kanboard
February 21, 2014 at 2:37:24 PM GMT+1 - permalink - - https://github.com/fguillot/kanboard

Teambox | The Most Complete Collaboration and Task Management Platform
December 12, 2013 at 10:11:00 AM GMT+1 - permalink - - http://teambox.com/

KanbanFlow - Lean project management, simplified
December 12, 2013 at 10:10:38 AM GMT+1 - permalink - - https://kanbanflow.com/

tyto: manage and organise.
December 11, 2013 at 2:00:06 PM GMT+1 - permalink - - http://jh3y.github.io/tyto/