A scan opens the messaging app with your number in the recipient field and the message already typed. The person taps send, and you have a reply, a keyword opt-in, or a vote, without them typing a thing.
This code is static and permanent. To change where it points after printing, .
Generate a QR code that opens the messaging app with your number and message ready to send. Free, no signup — perfect for keyword campaigns and opt-ins.
Generate as many QR codes as you need without an account, a trial, or a credit card. Free codes carry a small linkutm wordmark in the bottom corner; create an account to replace it with your own logo or remove it entirely.
Every code is encoded and rendered locally in JavaScript. Wi-Fi passwords, contact details, and campaign URLs are never uploaded to a server or logged anywhere.
Twelve ready-made designs pairing eight module styles with shaped finder patterns, brand colours, and gradients. Export a code that looks like it belongs on your packaging, not like a default black square.
Download a 1200px PNG for digital, a vector SVG that scales to a billboard without a single soft edge, or a print-ready PDF. Copy straight to the clipboard when you just need it in a deck.
Always include the country code with a leading plus — +91, +1, +44. A local-format number works for scanners in the same country and silently fails for everyone else, which is the sort of bug that only shows up after the posters are on walls.
Remember the direction: this is the text the scanner sends, not one they receive. For an opt-in campaign it is usually a single keyword like JOIN or OFFER, which keeps the message short and makes the inbound easy to process automatically.
An SMS code is only as good as the system on the other end. Point it at a shortcode or a business messaging number with an auto-responder, so the reply lands within seconds while the person is still standing in front of your poster.
Nobody texts a stranger for nothing. 'Scan and send to get 10% off your first order' converts; a bare code with no promise does not. Put the reason directly beneath the code in type large enough to read from scanning distance.
SMS has no install requirement and no account, so it reaches the widest possible audience — including customers who never downloaded WhatsApp and never open email on a phone. That makes it strong for keyword opt-ins on packaging, event voting and Q&A, appointment confirmations in healthcare, and any campaign aimed at an older or less app-native audience. It is also the only channel here that works on a feature phone.
The code is trivial; the response system is what determines whether the campaign works. Decide in advance what happens when the keyword arrives: an instant auto-reply with the offer code, a subscription added to your list, a ticket raised. Anything that involves a human reading a phone tomorrow morning will fail, because the intent that made someone scan a poster does not survive overnight.
Because the person composes and sends the message themselves, an inbound SMS is a clean, auditable opt-in — but it is an opt-in to what they were told, and nothing more. State plainly next to the code what they are signing up for and how often you will message. Keep the sent message as the record, honour STOP immediately, and follow the rules that apply where your recipients are, not where you are.
Every code on this page is free to make and never expires. The linkutm platform adds the parts a printed code cannot do on its own — editing the destination, and counting the scans.
A dynamic QR code keeps the same printed pattern while you change where it points, and shows you every scan — when, where, and on what device.
Create a free WhatsApp QR code that opens a chat with your number and a pre-written first message. No signup, works on iPhone and Android.
Make a QR code that dials your number on scan. Free click-to-call QR for shop windows, vehicles, signage and service ads. No signup, never expires.
Make a QR code that opens a new email with your address, subject and message already filled in. Free, no signup, ideal for support desks and enquiry forms.
Create a QR code for discount coupons and offers. Scan to reveal a code or claim the deal. Free to generate, and trackable so you can measure redemption.