How-To 2026-02-25 3 min By Cornelious Fazal
Create an SMS QR Code Free · No signup · Permanent

QR Code SMS: Create a Scan-to-Text Code With a Pre-Filled Message

Quick Answer

An SMS QR code encodes a tel: URI that opens the phone's default messaging app with a phone number - and optionally a pre-filled message - already loaded. The recipient just taps Send. It works on any iPhone or Android without a special app. Create one by entering your phone number and optional default message in the SMS QR Code Generator and downloading the result.

What Is an SMS QR Code?

An SMS QR code encodes an sms: URI - a standard that tells the phone to open its default messaging app (iMessage on iPhone, Messages on Android) with a phone number and optional message pre-filled. The user just taps Send. No typing their own number, no composing a message - just one tap.

Unlike a WhatsApp QR code (which requires WhatsApp to be installed), an SMS QR code works on every phone with a SIM regardless of which messaging apps are installed. It is the most universally compatible "contact me by message" QR approach.

The sms: URI Format

Two formats are widely supported across iOS and Android:

Format 1 (iOS standard): sms:+447700900000&body=Hello,%20I%20saw%20your%20sign

Format 2 (Android / universal): sms:+447700900000?body=Hello,%20I%20saw%20your%20sign

Some QR generators use SMSTO:number:message as an alternative that is likewise broadly supported. The difference between & and ? in the separator occasionally causes iOS/Android compatibility issues; testing on both platforms after generating is essential.

Body text encoding: Replace spaces with %20 or +. Keep the body text under 160 characters - beyond 160 characters, SMS is split into multiple messages which may incur extra charges on some networks.

Building Your SMS QR Code

  1. Decide on the body message. Keep it short and purposeful. Examples:
    • Tradesperson: Quote%20request%20from%20your%20van%20sign
    • Event RSVP: RSVP%20YES%20Garden%20Party%20June%207
    • Keyword campaign: OFFER
    • Support: Hi,%20I%20need%20help%20with%20my%20order
  2. Build the URI: sms:+447700900000?body=Quote%20request%20from%20your%20van%20sign
  3. Open our Free QR Code Generator. Select URL. Paste the URI.
  4. Generate. Download. Test on both iPhone and Android before printing.

Best Use Cases for SMS QR Codes

  • Tradespeople (plumbers, electricians, builders): "Text us for a quote - scan the code on our van." Preferred to calls by many self-employed traders who can't always answer while on a job. A pre-filled "Quote request" message filters out wrong numbers and casual enquiries.
  • SMS keyword campaigns: A QR code on a billboard encodes sms:shortcode?body=OFFER - scanning triggers the customer to text a keyword to your SMS marketing shortcode, adding them to your list. More engagement-friendly than requiring a form fill.
  • Event RSVP at low-connectivity venues: A printed invitation includes a QR code for SMS RSVP - works without internet (only cellular signal needed for the send step), unlike a web form QR code.
  • Customer support alternative: For businesses whose customers prefer text to phone calls or web chat - a QR code on packaging or receipts opens a pre-filled support text.

Frequently Asked Questions

The QR code scan and the opening of the messaging app with pre-filled content requires no internet connection - everything happens locally on the device. Sending the text message requires cellular signal (SMS uses the phone network, not the internet). The scan works at events, rural locations, and anywhere with camera function. The message sends as soon as the user has mobile signal - if signal is weak at the scan point, the message queues and sends automatically when signal returns.

An SMS QR code encodes an sms: URI that opens the device's native messaging app (iMessage or Android Messages) - it works on every phone with a SIM, no app installation required. A WhatsApp QR code encodes a wa.me URL that opens the WhatsApp app - it requires WhatsApp to be installed. SMS QR codes are more universal but limited to standard text messaging charges for the recipient. WhatsApp QR codes require the app but send messages over internet (no SMS charge). Use SMS QR codes for guaranteed universal reach; use WhatsApp QR codes when your audience is confirmed WhatsApp users and internet-connectivity-rich environments.
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