Since we have understood that QR codes store more data than barcodes, how much data can they store?
The amount of data a QR code stores depends on the size since they come in different sizes.
Version 1 QR code is a 21x21 grid, capable of holding about 25 alphanumeric characters.
Version 40, the largest-sized QR code, has a 177x177 grid and can hold about 4,296 alphanumeric characters or 3 kilobytes of data.
For an IRL instance, you can store an entire URL, a small document, or even a simple game within a QR code!
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