qrpwd is a online and command line tool to save password protected data in encrypted QR codes. So that this information can be easily backed up and retrieved via your normal photo backups / streams in Google Photos, Whatsapp, etc.
Open Source - MIT License - See the code.
Also check out the qrpwd command line tool on Github.
QR code:
qrpwd is a tool for encoding and decoding information in QR codes - password protected. Learn more at https://github.com/franzenzenhofer/qrpwd.