Trello-Backup is a simple script that Backups all your Trello.com boards and cards, one JSON file per board, for total peace of mind. This is a simple php script which uses the Trello.com API to securely fetch all your boards and store them on your computer. If you want to backup multiple Trello accounts, you can make multiple copies of example-config.php with different file names. Run trello-backup.php once for each account, specifying the path to the config file as an argument. For example, php trello-backup.php account1.php.