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obj: concept
wiki: https://en.wikipedia.org/wiki/QR_code
---
# QR Code
The quick response, or QR, Code is a two-dimensional version of the Barcode able to convey a wide variety of information almost instantly with the scan of a mobile device.
One can encode [URLs](../internet/URL.md), Contacts (in vCard format), WiFi-Credentials, Locations or other [ASCII](../files/ASCII.md) data.