How Many QR Codes Are Possible? (Are We Running Out?)
Short answer: no, we're not running out. The viral claim that QR codes are "80% depleted" is a debunked myth. The number of possible QR codes is so large it dwarfs the atoms in the observable universe, and the whole premise of "running out" is a category error anyway.
The "running out" myth, explained
Every few years a viral post claims QR codes are X% depleted and we'll hit a wall by some year soon. The numbers vary; the conclusion never changes. It's always wrong.
The claim treats QR codes like phone numbers: a fixed pool that a central authority doles out one by one until they're gone. That's not how QR codes work. There's no registry. Nobody allocates a code to you. You generate one that encodes your data, and when someone else encodes different data they get a different code. There's no shared pool to drain.
The actual scale
Atoms in the universe
Cosmologists estimate roughly 1080 atoms in the observable universe. That's the number people use when they want to say "unfathomably large."
Possible QR codes
The count varies by QR version, error-correction level, and masking pattern. Every credible estimate is astronomically larger than that atoms figure. Not close.
Codes generated so far
Billions. Which sounds like a lot until you compare it to the supply. It's a rounding error. Nobody's close to a ceiling.
Why "running out" is the wrong question
Phone numbers run out because a phone number points to a specific device: two people can't share one. QR codes don't work that way. Your code doesn't "belong" to you in any exclusive sense. It encodes your data, and anyone else encoding different data gets a different code. Same data, same pattern. Different data, different pattern.
Think of it like this: we're not "running out of sentences" just because billions of sentences have been written. Every new combination of words is a new sentence. QR codes are the same idea, just with binary patterns instead of words, and far, far more combinations.
Dynamic codes make the whole question moot
Even if the supply somehow mattered, dynamic QR codes would sidestep the concern entirely. A dynamic code points to a short redirect you control. Change the destination and the same printed code takes people somewhere new. No new code needed.
Dynamic, editable, and trackable codes are free with a free account here. You can update where a code points, track scan counts, and keep one code working for years without printing anything new.
QR code supply FAQ
No. The "QR codes are 80% depleted" claim is a debunked internet myth. QR codes aren't allocated from a central registry the way phone numbers or IP addresses are. You generate a code that encodes your data, and the number of possible codes is so large it dwarfs the estimated number of atoms in the observable universe. There's no supply to exhaust.
Astronomically many. The exact count depends on the QR version, error-correction level, and masking pattern you use, so sources give different figures. Every credible estimate lands somewhere far larger than the number of atoms in the observable universe, roughly 10 to the power of 80. Running out isn't a realistic concern on any timescale.
Two codes that encode the same data will produce the same pattern, yes. But different data always produces a different code. Because nobody allocates codes from a pool, there's no collision problem: if your code encodes your URL, it encodes your URL, and a code with a different URL is simply a different code.
Related: do QR codes expire and all guides.