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Barcode and QR tools and guides

Barcodes, QR and identifiers that keep working after you publish them.

Tools

QR code generatorMake a static QR code for text or a URL, style it, then verify the finished raster before you download it.
Barcode generatorMake a scanner-ready Code 128, EAN-13 or UPC-A symbol locally, with its checksum checked before SVG or PNG download.
QR code scannerRead a QR or Data Matrix code from your camera, an image, a screenshot or the clipboard, then inspect the exact result before opening anything.
UPC generatorTurn your 11- or 12-digit GTIN into a standards-shaped UPC-A barcode, with the check digit verified before download.
UUID generatorGenerate cryptographically random UUID v4 or time-sortable UUID v7 identifiers, one at a time or as a clean text batch.
Data Matrix generatorTurn Unicode text or a web address into a square ECC 200 Data Matrix locally, then download the exact black-and-white PNG or vector SVG.
WiFi QR code generatorTurn a network name and password into a scannable Wi-Fi QR code. The credentials stay in this tab.
Credit card number generatorGenerate structurally valid test card numbers for six networks, and check any number you paste against the same Luhn arithmetic.
Bulk barcode generatorTurn lines or a real CSV column into validated Code 128, EAN-13 or UPC-A files, then collect the whole batch in one ZIP.
vCard QR code generatorFill in a contact form, create a standards-based vCard QR locally, and download both the scan-checked code and matching VCF.
Bulk QR code generatorPaste one value per line or choose a real CSV column, then receive one crisp QR PNG per row in a single ZIP.
Barcode scanner to ExcelKeep scanning QR and linear barcodes into a local table, then download the reviewed rows as Excel or CSV.

More reading

How to scan a QR code from a screenshot