GS1-128 carries structured supply-chain data — GTINs, batch numbers, expiry dates — as Application Identifiers like (01) and (17). Unlike most generators, this one lints every AI against the GS1 syntax rules: an invalid date or malformed AI comes back as a clear error, not a barcode your trading partner rejects.
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The logistics workhorse — GS1 AIs, linter-validated.
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