At Sleekplan you can display your roadmap as a list or as a kanban board. The settings can be made separately for the admin dashboard for every user separately and for the standalone website.
Navigate to Settings > Widget/Page > Website Settings
Use the toggle to enable the Kanban roadmap
Each team member can decide for themselves in the admin dashboard how the roadmap should be displayed. Each team member can switch between the two views via the button at the top right at Dashboard > Roadmap.