It would be very useful to have a the ability to have teams so all have access to the tables.
I really enjoy this product, its so useful for our work. Keep up the good work 
Hello @piercemcgeough , Iām Khoa from the dbdiagram.io team. Thank you for your feedback on dbdiagram.io. For now, all the diagrams are public so you can click on the share button and share the diagram with your team, then your teammates can edit it as well.
Anyway, we plan to have private diagrams and team collaboration feature in future releases.