📡 Barcode Scanner Shape Detection API — zero libraries

Point your camera at any QR code, book ISBN, or grocery barcode. The browser's built-in detector — the same one the OS camera app uses — reads it live and draws a box around it. No scanning library, no WASM blob, no server.

📷 Start scanning

Chromium (and Android) ship BarcodeDetector; elsewhere this page says so honestly. Need a QR code to test? Your boarding pass, a restaurant menu, any shipping box — they're everywhere.