If it is invalid it will be appended with the message, invalid x.Ī bar code or more commonly barcode is the small image of bars or lines and spaces that is seen on retail items and products.Ī barcode is used to identify a particular product number, person, or location.

If your barcode is valid according to GS1 standards, it will be appended with a, GTIN-XX OK message. Paste your barcodes in the first (the left) text box and click the button Validate. This bulk barcode validator will confirm if your barcode is a valid GTIN-8, GTIN-12, GTIN-13 and/or GTIN-14 barcode. A complete barcode including the last check digit according to GS1 standards will be added to the second output text box. Paste your GTIN-8, GTIN-12, GTIN-13 and/or GTIN-14 barcode without the last digit (check digit part) in the first (the left) text box and click the button Calculate. This bulk barcode generator will generate a complete barcode from a barcode part without a check digit. The validator will check if the barcode is valid by looking at the last digit (the check digit) as well as the length of the code.Ĭalculate (Generate) Barcode Check Digits

Enter an complter barcode and press “Validate”.

The calculator will append the final check digit to your barcode piece or append an error message if you have entered an invalid piece.

Enter an incomplete barcode and press “Calculate”.You can calculate & validate up to 10 million rows at a time.Separate values with a new line and/or a comma.

Check digit calculator online