QR Code Generator

Low, Medium, Quartile, and High trade code density for damage tolerance — roughly 7%, 15%, 25%, and 30% of the code can be obscured or damaged and still scan correctly. Medium is a safe default for a plain code; go higher if you plan to overlay a logo or print it somewhere it might get scuffed, dirtied, or partially covered.

It never expires. This generates a static encoding of exactly the text you typed — not a redirect or a shortlink — so there's no service that could take it down. The flip side is that if the underlying URL ever changes, the QR code itself doesn't update; you'd need to generate and redistribute a new one.

Up to about 4,296 alphanumeric characters or 2,953 bytes at the lowest error-correction level, though in practice you'll hit diminishing returns well before that — a very dense code becomes harder for cheap phone cameras to scan reliably. For anything long (a full vCard, a large WiFi config), keep the error-correction level low and test a scan before you print it anywhere.

PNG is the safe default for most uses: social posts, slides, anywhere that just needs an image. SVG is vector, so it scales to any size — a banner or a large print piece — without going blurry or pixelated, and it's the better choice when the code will be resized or edited further in design software.

No. The QR code is generated entirely in your browser — nothing you type is uploaded to a server, so it's safe to use for private links, internal URLs, or WiFi credentials.