Skip to main content

High quality QR Code generator library for Python

Project description


This project aims to be the best, clearest QR Code generator library. The primary goals are flexible options and absolute correctness. Secondary goals are compact implementation size and good documentation comments.

Home page with live JavaScript demo, extensive descriptions, and competitor comparisons:


Core features:

  • Significantly shorter code but more documentation comments compared to competing libraries

  • Supports encoding all 40 versions (sizes) and all 4 error correction levels, as per the QR Code Model 2 standard

  • Output format: Raw modules/pixels of the QR symbol

  • Detects finder-like penalty patterns more accurately than other implementations

  • Encodes numeric and special-alphanumeric text in less space than general text

  • Open-source code under the permissive MIT License

Manual parameters:

  • User can specify minimum and maximum version numbers allowed, then library will automatically choose smallest version in the range that fits the data

  • User can specify mask pattern manually, otherwise library will automatically evaluate all 8 masks and select the optimal one

  • User can specify absolute error correction level, or allow the library to boost it if it doesn’t increase the version number

  • User can create a list of data segments manually and add ECI segments

More information about QR Code technology and this library’s design can be found on the project home page.


from qrcodegen import *

# Simple operation
qr0 = QrCode.encode_text("Hello, world!", QrCode.Ecc.MEDIUM)
svg = to_svg_str(qr0, 4)  # See qrcodegen-demo

# Manual operation
segs = QrSegment.make_segments("3141592653589793238462643383")
qr1 = QrCode.encode_segments(segs, QrCode.Ecc.HIGH, 5, 5, 2, False)
for y in range(qr1.get_size()):
    for x in range(qr1.get_size()):
        (... paint qr1.get_module(x, y) ...)

More complete set of examples: .

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution (18.4 kB view hashes)

Uploaded source

Built Distribution

qrcodegen-1.8.0-py3-none-any.whl (14.4 kB view hashes)

Uploaded py3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page