Halloween QR code ideas
A spooky playlist, a clue trail, a costume vote and a pumpkin patch map, and dark designs that still scan at night.
Guides
QR code guides
How to make QR codes that work in the real world: what goes inside them, how big to print them, which colours scan, and when a code you can edit later is worth paying for. Useful whichever generator you use.
Seasonal
Codes for Halloween and the Christmas markets, with sizes and designs that work outdoors and after dark.
QR codes for a Christmas market stall
Payment links, your shop page, a WhatsApp code for orders, stall sign sizes, and signs that survive cold and glare.
Making and printing
The format, the size and the colours: what decides whether a code scans.
How to make a Wi‑Fi QR code
The exact WIFI: format, WPA, WEP and open networks, hidden networks, and what to do when the password changes.
QR code size for printing
Minimum sizes, the distance ÷ 10 rule, the quiet zone and error correction, with a table of real codes.
QR code colours that still scan
Contrast ratios with real examples, inverted codes, gradients, logos and what printing does to colour.
How to make a QR code for a website link
The shortest working address, https and the final URL, UTM tags without bloat, and why static is enough on your own domain.
How to make a QR code with a logo
Error correction H, how big the logo can be, what it must never cover, a plate behind it, and testing the smallest size.
How to make a QR code for a PDF
Where to host the file, keeping its address when you update it, a phone-friendly PDF, and when a web page is better.
QR codes on product packaging
Minimum label sizes, how far a code can wrap round a jar, links that outlive the print run, and ink on kraft or clear labels.
Choosing and using
Which kind of code to buy, if any, how to change an Editable code, and how to use one for a menu or a wedding.
Static vs dynamic QR codes
What each kind is, when you need a dynamic code, what it costs and what happens when you stop paying.
How to change where your Editable code points
Where your manage link is, changing the destination step by step, testing it, and what happens if the year lapses.
How to make a QR code for your restaurant menu
Where to host the menu, web page or PDF, table tent sizes, accessibility and the printed backup.
Wedding QR codes: RSVPs, photos and signs
RSVP links, save-the-date calendar codes, the venue pin, a shared album, signs, and testing on guests’ phones.
Do QR codes expire?
Why static codes can’t expire, how links inside them die, when dynamic codes stop, and how to tell which you have.
QR codes for event tickets: how they work
How ticket codes are checked at the door, what a static code can’t do, and the codes that do help around an event.
A code for each job
Reviews, Instagram, maps, texts, emails and calendar events: what each code holds and how to make it work.
How to make a QR code for Google reviews
Where to find the review link, where to put the code, Google’s rules on asking, and a test that it opens the review box.
How to make a QR code for your Instagram profile
The profile link vs Instagram’s own code, what people without the app see, and sizes for packaging and cards.
How to make a QR code for a map location
geo: coordinates or a map link, which phones open what, exact coordinates, and why to pin the entrance.
How to make an SMS QR code
The SMSTO: format, message length, keyword opt-ins, phone and carrier differences, and consent wording.
How to make an email QR code
The mailto: format with a subject and body, when it beats a form, density, and phones with no mail app.
How to make a QR code for a calendar event
What the VEVENT holds, iPhone and Android, floating local time, all-day events, density, and when to link instead.
Ready-made pages: WhatsApp codes Contact cards Property signs Guesthouse Wi‑Fi cards
Scanning and testing
How people scan a code, and how to check yours works before you print a batch.
How to scan a QR code on iPhone and Android
The camera on iPhone and Android, Google Lens, codes in screenshots, what to try when nothing happens, and safe tapping.
How to test a QR code before you print it
A ten-minute checklist, a table of common failures and their causes, and when to test again after a reprint.
Ready to make one?
Free codes are made in your browser, with no sign-up, on any of 25 3D islands.