Everything you need to know about QR codes
Short, practical guides written to answer the questions people actually search for — no fluff, no jargon.
Start with these
- Choosing a code type? Read static vs dynamic QR codes.
- Already printed one? Read how to change a QR code link.
- Preparing a print run? Read the printing checklist.
Static vs dynamic QR codes: what's the difference?
Both types of QR code look identical when printed, and both scan with any phone. The difference is what they encode: a static code holds your destination URL directly, while a dynamic code holds a short link that redirects to a destination you can change at any time.
4 min read
How to change the link behind a QR code after printing
Short answer: you cannot change a static QR code, but you absolutely can change a dynamic one — and you can do it as many times as you like, without reprinting. This guide explains why, and how to make sure your printed code never becomes a dead end.
2 min read
Country-based QR code redirection: one code, many destinations
One printed code can send German visitors to a German page, US visitors to a US page and everyone else to a default — without creating a separate QR code for each market. This is geo redirection, and it works because a dynamic code resolves its destination on the server at scan time.
2 min read
Device-based QR code redirects: iOS, Android and desktop
If you have an iOS app and an Android app, a single QR code on a poster should not send everyone to the same store. With device rules, one code can send iPhone users to the App Store, Android users to Google Play and desktop users to your website.
1 min read
Do QR codes expire? Scan limits, validity and how to make them last
QR codes are not designed to expire — but a code can stop working if the service behind it does. Here is what actually limits a code's lifespan, and how to choose one that keeps working for years.
3 min read
Round and circular QR codes: how to make one that still scans
A round QR code is a normal QR code with rounded data modules and circular finder patterns. Done carefully, it scans as reliably as the square original — the trick is knowing which parts of the code carry the data and which parts are just style.
2 min read
Can you edit a static QR code?
No — once a static QR code is printed, the data inside it is fixed. This guide explains why, and the realistic options if you have a static code you now need to change.
1 min read
Can you redirect an existing QR code?
Redirecting an existing QR code depends entirely on one thing: whether it is static or dynamic. Here is how to tell, and what you can do in each case.
1 min read
How to add conditional redirects to a QR code
A conditional redirect sends scanners to different pages depending on who they are — their country, device or language — all from the same printed code.
1 min read
How to convert a static QR code to a dynamic one
Strictly speaking, you cannot convert a printed static QR code into a dynamic one — the pattern is fixed. But you can achieve the same outcome by controlling the destination, and use dynamic codes for everything you print from now on.
1 min read
QR code scan limits: what to check before printing
Scan limits are the most common way a printed QR code quietly dies. Before you print at scale, check exactly what your plan allows.
1 min read
QR code printing checklist
Most QR codes that fail were fine on screen and wrong in print. Run through this checklist before any print run.
1 min read
How to test a QR code before printing
A five-minute test prevents a costly reprint. Here is the routine we recommend before any QR code goes to press.
3 min read
Why are dynamic QR codes expensive?
Dynamic QR codes cost more than static ones for a real reason: a server has to resolve every scan. But 'more expensive' does not have to mean 'overpriced'.
1 min read
Free vs paid QR code solutions: the real cost of free
Free QR codes are genuinely free when they are static. Free dynamic codes are usually a trial in disguise. Here is how to tell the difference.
1 min read
QR code subscription lock-in and hidden fees
The danger with QR subscriptions is not the monthly fee — it is what happens to your printed codes if you stop paying, or if you want to leave.
1 min read
One QR code with multiple links: how it works
A single QR code can serve many different links — not by magic, but by rules. Here is how one printed code can send different people to different URLs.
1 min read
QR codes for marketing campaigns
Print is usually a dead end for marketers because it cannot be measured or changed. A dynamic QR code fixes both — it turns a poster into a channel.
1 min read
How to choose the best QR code generator
Most 'best QR generator' lists are affiliate pages. Here are the criteria that actually decide whether a generator will still be working for you in two years.
1 min read
Cheapest QR code generator with unlimited scans
Unlimited scans sounds like a marketing line until you have a code on national packaging. Here is what to look for, and how to keep the cost per code low.
1 min read
Dynamic QR codes for print: a practical guide
Print is unforgiving: once the ink is on the page, a mistake is expensive. This guide covers the practical decisions — size, contrast, materials and testing — that decide whether a QR code works in the real world.
2 min read
QR codes for marketing departments
Marketing teams avoid print because it cannot be changed or measured. Dynamic QR codes remove both objections — the printed asset stays, and everything behind it becomes as flexible as a landing page.
1 min read
Maximizing dynamic QR codes for your business
Most businesses underuse QR codes because they treat them as decoration. Treated as a channel, a single code can replace a stack of printed variants and give you data you never had before.
1 min read
Rule-based dynamic QR codes, explained
A rule-based code decides its destination at scan time. Understanding how matchers, priority and fallbacks interact is the difference between predictable routing and a support ticket.
1 min read
Comparing QR code generators: what actually matters
Generators look interchangeable until a printed code stops working. Judge them on the handful of things that decide a code's lifespan, not on the size of the feature list.
1 min read
What happens when a QR subscription expires?
A subscription lapses quietly — and then a printed code in a waiting room or on packaging stops redirecting. Here is what usually happens, and how to avoid being caught out.
1 min read
Printed the wrong QR code? Here's what to do
It happens to everyone: a test URL goes to print, two codes get swapped, or an old file gets used. What you can do about it depends entirely on which type of code you printed.
1 min read
QR code hidden fees to look for
A cheap QR plan can end up costing more than an expensive one. The difference is usually in the small print — metering, per-code charges and what happens when you leave.
1 min read
Can you edit a dynamic QR code?
Yes — editing is the entire point of a dynamic code. But it helps to know precisely which parts are editable and which parts are set in ink.
1 min read
The hidden risk of static QR codes for print
Static codes are free, simple and durable — until the destination moves. The risk is not in the code, it is in everything you can no longer change.
1 min read
How to make sure your QR code works forever
Nothing is literally forever, but the failure modes are predictable. Pick the right type of code, avoid the two classic traps, and a code you print today will still resolve years from now.
1 min read
QR code size and distance: how big should it be?
The single most common printing mistake is sizing a code for the poster rather than the person. Size is a function of distance, and the ratio is easy to remember.
2 min read
QR code error correction, explained simply
Every QR code contains backup data alongside the real data. That redundancy is why a code still scans with a scratch across it — and why a logo in the middle does not break it.
1 min read
QR code colors and contrast: what still scans
A branded QR code looks better than a black-and-white one — right up until a scanner refuses it. The rules are simpler than they look: it is all about contrast and polarity.
1 min read
Adding a logo to a QR code without breaking it
A small logo in the center of a code is the most common customization — and the easiest way to make a code unreliable. Three rules keep it safe.
1 min read
How to track QR code scans
Static codes cannot be tracked at all — there is no server to ask. Dynamic codes can, because every scan passes through the redirect. That makes measurement a property of the code, not your website.
2 min read
QR code landing pages: what works on a phone
A scan is not a visit — it is a decision to spend five seconds on whatever you printed. The page you send people to decides whether that time is wasted.
1 min read
Short links vs QR codes: how they fit together
People treat short links and QR codes as alternatives. They are really two layers: the code is the printed symbol, and the short link is the small piece of indirection that keeps it editable.
1 min read
QR code accessibility: designing for everyone
QR codes assume a working phone, decent eyesight and a steady hand. A little planning makes them usable by far more people — and covers you when a phone dies.
1 min read
QR code phishing: how to spot and prevent it
A QR code is a link you cannot read until you open it. That is exactly what makes it useful — and what makes it attractive to people who want you to visit somewhere unexpected.
1 min read
Common questions
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