Formula & Calculation Methodology
Client-side matrix barcode pattern detection and Reed-Solomon error correction decoding.
QR_{decoded} = Decode(Pattern_{matrix})
Step-by-Step Worked Example
Uploaded WhatsApp Screenshot of Payment QR Code
- Image loaded in local canvas memory
- Finder patterns identified in 3 corners
- Decoded Payload: upi://pay?pa=merchant@upi&pn=Store&cu=INR
Result: Decoded UPI payment link ready for instant app launch
Scan QR Codes Privately in Your Browser
Unlike mobile apps filled with ads, BharatUtility’s QR Code scanner runs 100% locally inside your web browser. Your camera feed and images are never uploaded to any server.
Frequently Asked Questions
Can I scan a QR code from a screenshot on my phone?
Yes! Select the Upload Image tab and choose the screenshot from your gallery.
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