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Make a QR code that always scans

We fix broken QR codes all day – so we know exactly what makes one last. Generate a durable, high-reliability code that keeps scanning even when it gets a little worn.

Verified to scan – free, in your browser.

Built to survive the real world

Generate with headroom

Semacode uses a strong error-correction level, so the code tolerates scuffs, smudges and small damage.

Keep the quiet zone

We preserve the empty margin scanners need to lock on – a common reason codes fail.

Export print-ready

Download at a size and contrast that survives printing, labels and outdoor use.

What makes a code durable

High error correction

More redundancy means more damage tolerated before it stops reading – up to about 30%.

Protected corners

The three finder squares are what a scanner locks onto – we keep them crisp.

Right size & contrast

True black on white, printed large enough, with a clear margin – the basics that keep it alive.

Create one now

Frequently asked questions

How do I make a QR code that won't stop working?
Generate it at a high error-correction level, keep a clear quiet-zone margin, and print it large with strong black-on-white contrast. Semacode sets these up for you.
What error-correction level should I use?
For anything that might get worn, level H (about 30% recoverable) is safest. Semacode can build your code with strong correction by default.
Why do some QR codes stop scanning over time?
Usually fading, scratches, a lost quiet zone, or a damaged corner marker. Building with headroom and printing well prevents most of it.
What if a code still gets damaged?
Then our recovery mode can often read it again from a photo – repairing damaged codes is what Semacode started with.

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