Gravity Forms Limit Checkboxes limits how many checkboxes of a Checkbox field can be selected at once. Set a minimum and maximum per field, so users must pick at least x but no more than y.

Once the maximum is reached, the remaining boxes are disabled until the user unchecks one. The minimum is validated on submission and returns an error that shows how many boxes must be checked. A limit can span several fields, so with a shared limit of two, a user can pick two boxes in one field or one in each.

It also supports Multiple Choice and Image Choice fields, adding live prevention of extra selections and limits across fields.