1.nayuki / QR-Code-generatorHigh-quality QR Code generator library in Java, TypeScript/JavaScript, Python, Rust, C++, C.qr-codeqr-generatorc-plus-plusjavapythonjavascript+5 moreJavaNo license6.8K total1.3K forks+2 starsfrom 6,804 · score 1.10
2.zxing / zxingZXing ("Zebra Crossing") barcode scanning library for Java, Androidjavaandroidbarcodebarcode-scannerzxingqr-code+2 moreJavaAPACHE-2.034K total9.4K forks+1 starsfrom 34,180 · score 0.69