bic

Validates that a field contains a valid BIC (Bank Identifier Code) / SWIFT code.

Options

Option	Type	Default	Description
message	string	locale default	Custom error message

Playground

Valid values

Value	Notes
"DEUTDEFF"	Deutsche Bank Frankfurt (8 chars)
"BNPAFRPPXXX"	BNP Paribas Paris (11 chars with branch)

Invalid values

Value	Reason
"INVALID"	Does not match BIC format
"DEUT1234"	Digits in bank/country code positions

Notes

• Empty string ("") always returns valid: true. Combine with notEmpty to require a value.
• BIC is either 8 characters (no branch) or 11 characters (with branch code).