---
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](../files/vCard.md) format), WiFi-Credentials, Locations or other [ASCII](../files/ASCII.md) data.