Code for qr code scanner using instascan library

If you are tech and gadget savvy, then you must be aware of QR codes. You will find it everywhere these days – in blogs, websites and even in some public places. This is very popular in mobile apps, where you scan the QR code using a QR Code scanner app and it will show you the text or redirect you to the web page if it’s URL. I came across this recently and found it very interesting. If you want to know about QR Code, you can find a lot of useful information at Wikipedia QR Code Page. When I found these kind of images in so many websites then I started looking how to generate it using Java Code. I looked into some APIs available as open source in the market and found zxing to be the simplest and best to use. Here is the program you can use to create QR Code image with zxing API.

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web page which as image of qr code scanner

this is a qr code generator and scanner web page.

A QR Code Scanner for web pages and map locations developed with Flutter

A QR Code Scanner for web pages and map locations developed with Flutter

QR Code Scanner App: An App made in python using libraries : cv2(opencv), webbrowser to scan a QRcode using the system camera and redirecting the page to the web browser, along with that crater app to create a Qr code of any website using pyqrcode ,png libraries.

WebQRScanner is a lightweight Chrome extension that streamlines the process of scanning QR codes found on web pages. Instead of taking screenshots, switching to a QR scanner app, or using your phone to scan your computer screen, WebQRScanner allows you to select any area of a webpage containing a QR code and instantly scan it.

QR/barcode scanner & generator with a GitHub Pages-ready static Web UI plus an AWS Lambda encode/decode API (POST /encode, /decode). Scan via camera or image upload, keep a 100-item local history, and generate QR Code, Code 128, EAN-13, UPC-A, PDF417, Data Matrix as SVG/PNG (QR logo overlay). Uses BarcodeDetector with ZXing fallback.