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UseQR

Free WhatsApp QR Code Generator

Opens a WhatsApp chat with your number and message pre-filled. Free forever — no signup, no watermark, generated entirely in your browser.

Frequently asked questions

What happens when someone scans a WhatsApp QR code?
WhatsApp opens with a chat to your number and your message prefilled — the scanner just taps send. If they do not have WhatsApp installed, the link opens in the browser and offers it.
Why does the number need a country code?
WhatsApp identifies accounts by full international number, so the country code is required — +14155552671, not just 4155552671. The + and spaces are stripped automatically; without the right country code the chat simply will not open.
Do people need my number saved to chat with me?
No — that is the magic. The code opens the chat directly without them saving your contact first, which is why these work so well on shop windows, menus, and support desks.
Is my number kept private?
The code is generated in your browser, free with no signup — we never see it. But the number is encoded in the code itself, so anyone who scans can read it. Use a business number if you would rather keep your personal one private.

Want the detail? How whatsapp QR codes work — the payload format, what scanners do with it, and where it breaks.