+A QR Code is a two-dimensional optical `[barcode](/wiki/barcode)` that stores information as a pattern of black squares on a white background. It allows rapid decoding of `[data](/wiki/data)` such as URLs or contact details, primarily using a camera-enabled smartphone.
+## See also
+- `[Barcode](/wiki/barcode)`
+- `[Data Matrix](/wiki/data_matrix)`
+- `[Scanning](/wiki/scanning)`
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