QR Code Generator & Reader

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name: qr-code description: Generate and read QR codes. Use when the user wants to create a QR code from text/URL, or decode/read a QR code from an image file. Supports PNG/JPG output and can read QR codes from screenshots or image files.

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QR Code

Generate QR codes from text/URLs and decode QR codes from images.

Capabilities

Generate QR codes from any text, URL, or data

Customize QR code size and error correction level

Save as PNG or display in terminal

Read/decode QR codes from image files (PNG, JPG, etc.)

Read QR codes from screenshots

Requirements

Install Python dependencies:

For Generation

pip install qrcode pillow

For Reading

pip install pillow pyzbar

On Windows, pyzbar requires Visual C++ Redistributable. On macOS: brew install zbar On Linux: apt install libzbar0

Generate QR Code

python scripts/qr_generate.py "https://example.com" output.png

Options:

--size: Box size in pixels (default: 10)

--border: Border size in boxes (default: 4)

--error: Error correction level L/M/Q/H (default: M)

Example with options:

python scripts/qr_generate.py "Hello World" hello.png --size 15 --border 2

Read QR Code

python scripts/qr_read.py image.png

Returns the decoded text/URL from the QR code.

Quick Examples

Generate QR for a URL:

import qrcode
img = qrcode.make("https://openclaw.ai")
img.save("openclaw.png")

Read QR from image:

from pyzbar.pyzbar import decode
from PIL import Image
data = decode(Image.open("qr.png"))
print(data[0].data.decode())

Scripts

scripts/qr_generate.py - Generate QR codes with customization options

scripts/qr_read.py - Decode QR codes from image files