WeKan

WeKan is a completely open-source, self-hosted collaborative kanban board application licensed under MIT. Built with the Meteor full-stack JavaScript framework, it provides a real-time, drag-and-drop interface for managing tasks visually across teams of any size.

WeKan supports swimlanes, WIP limits, checklists, card comments, file attachments, and custom fields — giving teams the flexibility to adapt their boards to any workflow. With translations into 105+ languages, it is used in most countries worldwide, with the largest deployment supporting over 30,000 users.

Available via Docker, Snap, and source installation, WeKan makes it easy to self-host on any infrastructure. The project is actively maintained with frequent releases and a strong focus on security. For teams wanting a Trello-like experience they fully control, WeKan is one of the most mature and widely-adopted open-source kanban solutions available.