Tools

                  Check digit calculator
                  Calculate correct check digit for barcodes.

                  Who owns this barcode?
                  Find companies linked to GS1 barcode numbers.

                  Standards

                  See how GS1 standards work
                  GS1 standards help you single out what really matters.

                  Need a barcode?

                  Our barcodes identify products uniquely so they can be sold anywhere in the world.

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