關於「QR Code scanner online free」標籤，搜尋引擎有相關的訊息討論：

QR code reader&QR code Scanner - Apps on Google Playplay.google.com › store › apps › details › gl=USQR code reader&QR code scanner – Apps on Google Playplay.google.com › store › apps › details › gl=USQR Code Reader & Code Scanner 4+ - App Store - Appleapps.apple.com