Offline QR code generator
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This QR code generator first ZIPs your text and then puts it in a binary QR code. This allows you to put more data into an QR code, but the code can not be read by normal tools like smartphones anymore. Instead you need to extract the data from the QR code into a file, name it `something.zip`, double click to extract it and look at the contained `qr.txt` file to see the contents. Luckily this process can be automated on most operating systems using terminal commands. On macOS, you can use zbarimg and bsdtar: $ brew install zbar $ zbarimg -q --raw -Sbinary path/to/qr_code.png | bsdtar -xOf - On Linux you can use zbarimg and bsdtar too. The following works on Kali Linux (and likely most Debian Linux distros): $ sudo apt install libarchive-tools zbar-tools $ zbarimg -q --raw -Sbinary path/to/qr_code.png | bsdtar -xOf -
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