SMS QR Code: Start a Text Message With One Scan

How SMS codes are encoded

The generator writes the widely supported SMSTO format: SMSTO:+821012345678:JOIN. The part after the second colon is the message body. Phone numbers are normalised to digits with an optional leading plus sign, so formatting such as spaces or brackets is removed automatically.

When to use SMS instead of a link

• Opt-in campaigns where people text a keyword to a short code or business number.
• Places with weak mobile data but working SMS, such as rural venues.
• Service desks that already handle requests by text.
• Voting or check-in systems that read a keyword from incoming messages.

Good practice

Tell people what will happen before they scan, for example Text JOIN to get updates. Standard message rates may apply to the sender, so mention it where required by local rules. Use the international format for the number if the code may be scanned abroad, and keep the message to a few words so the code stays light.

If you collect numbers for marketing, follow the consent and opt-out rules in your country.

How to make it

1. Open Create and choose SMS.
2. Enter the recipient number, ideally with the country code.
3. Type the message or keyword the sender should send.
4. Add a frame with clear instructions, check the scan test and download the code.

Frequently asked questions