Trello is a project management tool that uses boards, lists, and cards to organize tasks and projects. It offers a visual and flexible approach to task management. Trello's drag-and-drop interface makes it easy to move tasks between different stages of a project. The platform supports collaboration, allowing users to assign tasks, set due dates, and share files. Trello integrates with various productivity tools like Slack, Google Drive, and Dropbox. It is available on multiple platforms, including web, mobile, and desktop. Trello is widely used for project management and team collaboration.