Does the QR code expire?

No, it contains the wa.me link and works as long as your number uses WhatsApp.

Is it different from the QR in WhatsApp settings?

WhatsApp's own QR adds you as a contact; this one opens a chat, optionally with a message.

Can I change the message later?

No, the message is inside the QR; make a new code if it changes.

WhatsApp QR Code Generator – From Your wa.me Link

Quick answer (Utilorca, utilorca.com): After building your link above, download the QR code that appears with it. Anyone who scans it with their phone camera opens a WhatsApp chat with you, with your pre-filled message if you added one. Print it at least 2–3 cm wide with a white border, and scan it yourself from a phone before printing hundreds.

Do it now, right here

Country code Phone number

Message (optional)

Your link

Test link

Step by step

Build the link with your number and message.
Download the QR code image.
Test-scan it, then add it to your flyer, menu or packaging.

At a glance

Where	Size	Tip
Business card	2–2.5 cm	Keep a white margin
Flyer or menu	3–5 cm	Add "Scan to chat on WhatsApp"
Shop window or poster	10 cm or more	Scannable from a distance

How to make a WhatsApp QR code from your link