WhatsApp Web desktop: QR‑code connection, sync features and Windows 11 fixes

WhatsApp Web links a mobile account to a computer browser via a QR code, enabling real‑time message, file and call synchronization across up to four devices. The service mirrors most mobile functions, supports keyboard shortcuts, media editing and sticker creation, and uses end‑to‑end encryption with optional two‑factor authentication for added security.

When the web client stops working, especially on Windows 11, users can troubleshoot by verifying WhatsApp server status, confirming browser compatibility (Chrome, Edge, Firefox, Safari, Opera, Brave), updating the phone app and the browser, resetting network settings, and clearing browser cache and cookies. Following these steps typically restores connectivity to the web interface.