qrencode
Encode text into QR code images
TLDR
Generate QR code to terminal
$ qrencode -t ANSI "[text]"
Generate PNG image$ qrencode -o [qr.png] "[text]"
Generate SVG$ qrencode -t SVG -o [qr.svg] "[text]"
Set size$ qrencode -s [10] -o [qr.png] "[text]"
Read from stdin$ echo "[text]" | qrencode -o [qr.png]
SYNOPSIS
qrencode [options] [string]
DESCRIPTION
qrencode is a command-line QR code generator built on the libqrencode library. It encodes text into QR codes and outputs them in multiple formats including PNG, SVG, EPS, ANSI terminal art, and ASCII, making it suitable for both display and print use cases.
Options control the error correction level (L/M/Q/H), QR version (which determines capacity and physical size), and module size for raster output. Input can come from command-line arguments or standard input, supporting integration into scripts and pipelines.
PARAMETERS
STRING
Text to encode.-o FILE
Output file.-t TYPE
Output type (PNG, SVG, ANSI).-s SIZE
Module size.-l LEVEL
Error correction level.-v VERSION
QR version (size).
CAVEATS
libqrencode based. Multiple output formats.
HISTORY
qrencode uses libqrencode for QR code generation.