There are plenty of QR decoders online. Most upload your image to a server. Most haven't been touched in years.
WifiQRScan does the same thing, client-side. Drop an image, paste, or enter a URL — SSID and password appear instantly. Nothing leaves your device.
Built on ZXing + WebAssembly, the same engine used in most mobile apps. Free, no account needed. Also generates WiFi QR codes to print or share.
