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    1. 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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