Trello is the free, flexible, and visual way to organize anything with anyone. A Trello board is a list of lists, filled with cards, used by you and your team. Trello has everything you need to organize projects of any size. Open a card and you can add comments, upload file attachments, create checklists, add labels and due dates, and more. You can invite as many people to your board as you need, all for free. Drag and drop people to cards to divvy up tasks. Everyone sees the same board and the whole picture all at once.