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QR code generator

Build a QR code that matches your brand instead of fighting it — custom colours, module and eye shapes, an optional centre logo, and vector or print-resolution export. Everything runs in your browser; nothing you type here is ever sent anywhere.

Version: 2
Modules: 25×25
ECC: M

Content

Address

Opens the address in a browser. A scheme is added automatically if you leave it off.

Colour

Foreground

Background

Module shape

Eye shape

Error correction

15% recovery

Medium by default, and High the moment a logo goes on — the level most codes need to survive a bit of wear.

Quiet zone4 modules

The plain border a scanner uses to find the code at all. Four modules is the spec's own minimum.

Centre logo

Off by default. A logo covers real modules — the code needs headroom to lose them and still scan.

01Export

Vector SVG for a layout that will scale, or PNG at a size that holds up in print. Nothing here is uploaded — the code is built and encoded entirely in your browser.

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Before it goes to print

A QR code that looks right on screen and a QR code that scans reliably in the wild are two different bars to clear. These are the things that actually move the second one.

01Contrast beats style: A scanner is a camera hunting for dark against light. Two on-brand colours that are close in lightness can look fine to a human and fail to focus for a phone from across a room. If it has to be coloured, keep one end close to black and the other close to white.
02A logo spends the code's own budget: Error correction is a fixed pool of redundancy, and a centre logo pays for its space out of that pool. Turning one on raises the error-correction level automatically here, but the physical rule doesn't change: the bigger the logo, the less room is left for a scratch, a fold, or a bad print run.
03The quiet zone isn't optional: The plain border around the code is how a scanner finds the edge of the pattern at all. Cropping it tight to fit a layout is the single most common reason an otherwise correct code stops scanning once it's printed small.
04Test it at the size it will actually be: A code that scans easily on a laptop screen at arm's length can fail at business-card size or from three metres on a poster. Print a proof, or view it on a phone at the real dimensions, before it goes anywhere it can't be reprinted.

Questions

What's the difference between the error-correction levels?

Each level trades code density for how much damage it can survive and still be read — Low recovers about 7% of the code, Medium 15%, Quartile 25%, High 30%. Medium is a reasonable default for most uses; reach for Quartile or High when a logo sits on top, or the code will be printed somewhere it might get scuffed.

Why is the centre logo off by default?

A logo covers real modules, and the only thing that keeps the code readable underneath it is spare error-correction capacity the content wasn't already using. Every code should start at the error-correction level its content actually needs — switching a logo on is a deliberate trade you make once you want it, not something the tool should assume.

Will a coloured or styled QR code still scan?

Yes, as long as there's enough contrast between the foreground and background, and the finder squares in the three corners stay recognisable — which is why this tool restyles them as a unit rather than letting the module shape distort them. Rounded or circular corners are safe; very light-on-light or similar-tone combinations are not.

SVG or PNG — which should I export?

SVG for anything that will be resized, printed, or dropped into a layout tool — it's vector, so it never softens. PNG when the destination needs a flat image file, like a slide deck or a social post; pick a pixel size at least as large as the code will ever be shown, since raising it after the fact just blurs it.

Is anything I type into this stored or sent anywhere?

No. The code is built and rendered entirely in your browser — the encoder, the styling, and the export all run locally. Nothing here is uploaded, logged, or kept after you close the tab.

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