QR codes

• QR code standards for different formats

Scan / decode QR codes

• cobang

  • cobang AUR package

• zbar
  • zbarcam or zbarcam-gtk from the zbar arch package
  • Not a nice UI: Decoded QR codes will only show up in the console
• decoder
  • Gnome app to scan and Generate QR Codes
  • Activly maintained
  • Orphaneddecoder-git AUR package

Produce ascii/UTF8 qr codes

• List of QR code generators on Linux

zint

• Website
• GitHub
• Arch package
• Both cli and GUI tool
• Online demo at barcode-generator.org

qrencode cli tool

• GitHub

Generate a terminal based text QR code:

qrencode -t utf8 password
echo "password" | qrencode -t utf8

decoder

See above

Outdated

• qr-code-generator-desktop
  • Last release 2020

Produce WLAN qr codes

• de-facto Wifi QR code standard
• Online QR-Code generator

with qrencode

qrencode "WIFI:T:WPA;S:My_Network;P:My_very_secure_Password;;" -o wifi_login.png
qrencode "WIFI:T:WPA;S:casita;P:$(rbw get 'wlan|whg1.3|casita');;" -t utf8

Script:

~/bin/wifi-to-qr-pdf.sh 90er

wifi-qr

https://github.com/kokoye2007/wifi-qr

sudo apt install wifi-qr

Produce terminal QR code from current connected wifi: wifi-qr

Unfortunatly not scriptable.