Taiga.io
Yanado - Task management inside Gmail.
Agile Project Management | Pivotal Tracker
Project Management for Software Teams - Shortcut
Agile Scrum Tool, Agile Project Management, Kanban Agile Board, Issue Tracker - Yodiz
Kanban Project Management Software - Kanboard
Quire - Unfold Your Ideas
Standuply – Automated Standups for Slack and Task Trackers
Focalboard: Open source alternative to Trello, Asana, and Notion