UDImaker - Barcode, QR Code & Label Designer

UDImaker is an in-browser label design tool and barcode generator. Create custom labels, GS1 DataMatrix layouts, Code 128 linear barcodes, and QR codes with precise millimetre dimensions. Export SVG, PDF, PNG and JPG files. Downloads require a verified account; label design and image decoding can be used without signing in.

Start with your label stock

Enter the width and height in millimetres, add a barcode or text, and replace the example data with your own values. The GS1 fields check GTIN length and check digit, date format, and supported lot and serial lengths. These checks do not issue identifiers or certify regulatory compliance.

Check the physical result

SVG preserves vector artwork. PDF uses a 300 DPI image on a page with your chosen physical dimensions. Print at actual size with matching printer media, leave the barcode quiet zone clear, and test a real label with the intended scanner. A successful decode does not provide a barcode quality certificate.

Label design and GS1 DataMatrix guides

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