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GS1-128 barcode generator

The logistics standard that combines the product number, expiry date and batch number in one barcode. Enter application identifiers in brackets.

Other barcode types

AI	Meaning	Format
(00)	SSCC, serial shipping container code	18 digits
(01)	GTIN, product number	14 digits
(10)	Batch or lot number	up to 20 characters
(11)	Production date	YYMMDD
(17)	Expiry date	YYMMDD
(21)	Serial number	up to 20 characters

Example: (01)08801234567893(17)271231(10)LOT42. Put fixed-length AIs first and variable-length ones last to keep the barcode short.

Are the brackets encoded in the barcode?

No. Brackets are only for people. The barcode stores the data with FNC1 separators.

What if the GTIN check digit is wrong?

You will see an error. The 14 digits after (01) must include a correct check digit.