If it is invalid it will be appended with the message, “invalid ”. 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. The 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. The 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. Validate: Enter complete barcode(s) in the Input area.The calculator will append the final check digit in the Output area or append an error message if you have entered an invalid barcode. Calculate: Enter incomplete barcode(s) in the Input area.
Separate values with a new line and/or a comma.
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