WiFi QR code

Generates a QR code for joining a WiFi network using the standard WIFI:T:WPA;S:…;P:…;; format that iOS Camera, Android Camera, and most third-party QR scanners understand. Unlike most online generators, it correctly escapes special characters in the SSID and password: `;`, `,`, `:`, “, `”` in a network name or password is the typical reason a “QR code does not work”. Here they go through proper escaping per the zxing wiki protocol, and the result is guaranteed to scan in any reader. Supports WPA/WPA2/WPA3, WEP, open networks (no password), and a “hidden network” option (for SSIDs that are not broadcast and have to be entered manually). Error-correction level L/M/Q/H is configurable — H helps if you plan to print the code and stick it on a wall where it can get scratched; M is the balance of size and resilience. Live update: change any field and the QR is regenerated. Export to PNG (for print, messaging apps) and SVG (for the web and scaling). The full payload string is shown beneath the QR — you can verify by hand what got encoded. The QR encoder is shared with the qr-code tool, implemented to ISO/IEC 18004:2015. Processing happens in the browser, no network requests.