How to make a QR code pet tag
When someone finds a lost dog or cat, the quickest way home is a call to the owner. A QR code on the tag means the finder doesn’t have to squint at tiny engraving or type a number with a nervous dog on a lead. They scan, and their phone offers to call you. Here is how to make one for free, without a subscription.
By Aidan Lowson · Updated
Why a QR code on a pet tag helps
- Faster contact. One scan brings up your number, ready to call. No mistyped digits.
- No vet visit needed. A microchip has to be read by a scanner. A QR code works with any phone, at any time of day.
- No subscription. Many "smart" pet tags rely on a paid profile page. A phone number code works on its own, for good.
What to put in the code
- Your phone number (best for most pets). A phone number QR code stores only your number, so it's small and easy to scan on a tiny tag. Scanning it offers to call you.
- A short note for pets with medical needs. A text QR code can hold a few lines, like "Please call 07700 900123. I'm Biscuit, I'm diabetic and I need my insulin." It shows on the finder's phone with no internet needed. Put the phone number first in case the phone shows only a preview.
Keep text codes short. More text means smaller squares, and a tag has very little room.
What to leave out
- Your full home address in the code. It adds a lot of data to a tiny code, and your phone number is enough to get your pet home. Where the law asks for an address, engrave it in text.
- Your pet's name, if you're worried about theft. Some owners prefer the name off the tag, so strangers can't call the pet over.
- Anything that could change often. Once the tag is engraved, the code can't be edited.
Make a QR code pet tag in 4 steps
- Open the phone number QR code generator and enter your mobile with the country code, so it works if your pet is found by a visitor from abroad.
- Keep it black on white, with no logo. Tags are small and get scratched, so give the code every chance.
- Set error correction to High. The code can then still be read with a bit of wear.
- Download an SVG for the engraver or printer, and a PNG to test with. Scan the PNG from your screen to check it calls your number.
Getting the tag made
- Choose a printed or enamel-filled tag over plain laser engraving on shiny metal. High contrast scans best.
- Go for at least 2.5 cm across for dogs, so the code can be at least 1.5 to 2 cm square.
- Engrave your number in text on the back, plus anything the law requires where you live. In the UK, a dog's tag needs the owner's name and address.
- Check it every few months. If it's scratched or faded, scan it. If it won't read, replace it.
The same idea works for people too: see how to make an emergency contact QR code.
Frequently asked questions
Does a QR code pet tag replace a microchip?
No. A microchip needs a scanner at a vet or rescue centre. A QR tag lets anyone with a phone contact you straight away. Use both. In the UK, dogs must also wear a tag with the owner’s name and address in public.
How small can the QR code be on a pet tag?
A phone number code is very short, so it can be printed at around 1.5 to 2 cm square on a quality tag. Test the finished tag before your pet wears it.
What if the finder’s phone cannot scan QR codes?
Always engrave your phone number in plain text on the tag as well. The QR code makes calling easier, but the number is the backup.
Does the tag need a subscription?
Not if you make it here. The number is stored in the code itself, so there is no account, no monthly fee and nothing to expire.
What if I change my phone number?
The tag will keep calling the old number, so make a new code and order a new tag. Update your microchip details at the same time.
Create your pet tag QR code now, free →
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