User can specify minimum and maximum version numbers allowed, then library will automatically choose smallest version in the range that fits the data Open-source code under the permissive MIT License Output format: Raw modules/ pixels of the QR symbolĭetects finder-like penalty patterns more accurately than other implementationsĮncodes numeric and special-alphanumeric text in less space than general text Supports encoding all 40 versions (sizes) and all 4 error correction levels, as per the QR Code Model 2 standard Significantly shorter code but more documentation comments compared to competing libraries (a competitive analysis is provided near the bottom of this page) You can generate QR Code symbols conveniently on this web page, powered by the TypeScript port of this library.Īvailable in 6 programming languages, all with nearly equal functionality: Java, Java (fast), TypeScript/ JavaScript, Python, Rust, Rust (no heap), C++, C For each language, the codebase is roughly 1000 lines of code and has no dependencies other than the respective language’s standard library.

The library is designed first in Java and then ported to TypeScript, Python, Rust, C++, and C. I believe that my library has a more intuitive API and shorter code length than competing libraries out there. This work is an independent implementation based on reading the official ISO specification documents. Secondary goals are compact implementation size and good documentation comments. My primary goals are flexible options and absolute correctness. This project aims to be the best, clearest library for generating QR Codes.

Qr code generator java