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QR Code

Tool to generate a QR-Code. QR code is a 2D barcode standard made of black and white squares. QR stands for Quick Response

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QR Code -

Tag(s) : Character Encoding, Image processing

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QR Code

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QR Code Generator



Tool to generate a QR-Code. QR code is a 2D barcode standard made of black and white squares. QR stands for Quick Response

Answers to Questions

How to create a QR code?

Encryption of data in a QR code uses the ISO norm 18004:2015 (QRCode).

How to decrypt a QR Code?

To read QR-Code, a quick and free solution is mobile phone. It exists a bunch of applications, such as Google Goggles [] or Google Lens [] (which has plenty of other use)

Example: Without smartphone, on Internet :

Example: X-Zing takes a URL or an image to decode barcodes []

Example: Online Bar Code Reader, another universal tool not limited to QR code []

How to recognize a QR Code?

The 2D bar code has generally 3 black squares in the corners and a matrix of black and white dots.

What are the variants of QR Code?

It exists also Data Matrix, Aztec, PDF 417, etc.

When QR code have been invented?

First QR codes have been published in Japan in 1999.

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Source code

dCode retains ownership of the source code of the script QR Code online. Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, Matlab, etc.) which dCode owns rights will not be given for free. To download the online QR Code script for offline use on PC, iPhone or Android, ask for price quote on contact page !

Questions / Comments


Team dCode likes feedback and relevant comments; to get an answer give an email (not published). It is thanks to you that dCode has the best QR Code tool. Thank you.


Source : https://www.dcode.fr/qr-code
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