qr-code-cli

Generate QR codes from the command line. Supports displaying QR codes in the terminal and exporting as PNG images.

Install

npm install -g qr-code-cli

Usage

Basic QR code in terminal

qr-code "https://example.com"

Save as PNG

qr-code "https://example.com" -o qrcode.png

Read from file

qr-code -i input.txt

Error correction level

qr-code "Hello World" -e H  # L, M, Q, H (default: M)

Options

| Flag | Description | |------|-------------| | -o, --output <file> | Save QR code as PNG image | | -i, --input <file> | Read input from file | | -e, --error <level> | Error correction level: L, M, Q, H (default: M) | | -s, --scale <n> | Module size in pixels (default: 8) | | -d, --dark <color> | Dark module color (default: #000000) | | -l, --light <color> | Light module color (default: #ffffff) | | -v, --version | Show version | | -h, --help | Show help |

Examples

# WiFi network QR
qr-code "WIFI:T:WPA;S:MyNetwork;P:MyPassword;;"

# vCard
qr-code "BEGIN:VCARD\nFN:John Doe\nTEL:123456789\nEND:VCARD"

# Large text from file
qr-code -i notes.txt -o notes.png -e H

License

MIT