Is there a way to delete all cards from a board in Trello?
The handiest way to archive all cards quickly is to use shortcuts.
- You can select the first one that you want to archive and the press on C as fast as possible.
- If you really need to delete rather than archive you will have to select Archived Items from the Show Menu | More options and delete the cards one by one
- With your board open press ? to find more useful shortcuts