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EAN, UPC and GTIN check digits changelog

What changed in the EAN, UPC and GTIN check digits, newest first.

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v0.15.0

Released November 1, 2026

  • ToolA new EAN, UPC and GTIN tool checks and computes check digits, identifies GS1 countries and converts ISBNs.

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One value per line.ValidationHTML entity encoder and decoderEscape text for HTML with named, decimal or hex entities, or turn entities such as & and é back into characters.EncodingEscape and unescape stringsEscape text for a JSON or JavaScript string, a SQL string, a CSV field, a regular expression or a shell word, or undo the escaping.EncodingEAN, UPC and GTIN check digitsCheck the check digit of an EAN-8, EAN-13, UPC-A or GTIN-14, add a missing one, read the country from the GS1 prefix and convert between ISBN-10 and EAN-13. One code per line.ValidationTest data generatorGenerate valid-looking test IBANs, BSNs, EAN barcodes and EU VAT numbers in bulk. 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