Trello UI design & app screens

Trello is a visual project tool built around kanban boards of lists and cards. It serves individuals and teams who want a simple, flexible way to organize work and workflows.

The interface is a defining reference for kanban UX: drag-and-drop cards across columns, card detail backs with checklists and attachments, labels, and Power-Ups. Designers study its satisfying card interactions, board layouts, and the approachable, playful design that made kanban mainstream for non-technical users.