What is QR code?
A QR code is a two-dimensional matrix barcode readable by a camera, defined by ISO/IEC 18004. Built-in error correction lets it still scan when partly damaged or obscured.
Primary sources
Specifications cited by the tools below whose own titles define QR code.
6 tools that work with QR code
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QR & Barcodes6
Barcode ReaderRead a code from a photo, a screenshot or your camera, entirely in your browser.Business Card QR to vCardDecode the QR code on a business card and save the contact as a .vcf file for any address book.QR Code GeneratorDesign QR codes with custom shapes, gradients and a logo, and check they will still scan.QR Code ReaderDecode a QR code from an image or your camera, and check the link before you open it.QR Code to TextPull the raw text, link or data out of a QR code image, and check it before you act on it.vCard GeneratorBuild a contact card with several numbers and addresses, and get the .vcf plus a scannable QR.
Related terms
Terms that appear alongside QR code on the same tools.