Boards you can open and edit rather than start from nothing. Free, no account, and every one of them was made in this editor.
Five tables for an online shop, with primary and foreign keys marked and relationships drawn row to row.
An order-fulfilment process across three lanes, with a decision point and both of its branches.
Four classes with attributes, methods and inheritance, in the standard three-compartment notation.
A central topic with four branches and their sub-points, ready to rename.
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