QR code generator
Text to encode
You can encode whatever you want as text.
The software that decodes these QR codes could offer to open them with dedicated software, depending on their
For example, to open a web page:
To send an e-mail:
To share geographic coordinates:
To call a phone number:
Redundancy is the "doubling" of information in the QR code in order to correct errors during decoding. A higher rate will produce a larger QR code, but have a better chance of being decoded correctly.
L - 7% redundancy
M - 15% redundancy
Q - 25% redundancy
H - 30% redundancy
Number of pixels in the white bands around the QR code.
2 - by default
How much will the dimensions of the image be multiplied?
4 - by default
What is a QR code?
A QR code is a 2-dimensional barcode in which text is written in binary. It can be decoded with a device equipped with a photo sensor and adequate software.
QR code on Wikipedia