QR Code Generator

Type a link or any text and a scannable QR code appears instantly, updating live as you edit. When it looks right, download it as a PNG. It works for a website, a Wi-Fi string, a phone number, a plain message — anything a QR reader can hand back as text.

Size: screen vs print

Sizes run from 128 to 1024 pixels. For a code on a screen, 256 is plenty. For anything printed, choose a size to match the physical dimensions and scanning distance — a poster read from across a room needs far more pixels than a business card. A rough rule for print is that the code should be at least a tenth of the distance it'll be scanned from. The exported PNG includes a small quiet-zone margin around the code (about two modules), which scanners need to lock on, so don't crop right up to the edge.

Error correction — and what the logo does

Error correction adds redundant data so a code still scans when part of it is dirty, wrinkled, or covered:

• L ≈ 7% recoverable — smallest, densest.
• M ≈ 15% — the default, a solid all-round choice.
• Q ≈ 25%.
• H ≈ 30% — most robust.

Higher levels pack in more modules (the little squares), so the pattern gets denser for the same size. This directly ties into the logo option: the moment you add a center logo, the tool forces the level to H and locks the selector, because the logo hides part of the code and you need that ~30% headroom to keep it scannable. The logo sits in a box about 22% of the code's width, on a solid backdrop so it doesn't bleed into the pattern. Keep a logo small and central — cover too much and no error-correction level will save the scan.

Color gotchas

You can set custom foreground and background colors, but scanners rely on contrast, and they expect dark modules on a light background. Keep strong contrast, and don't invert to a light pattern on a dark field — many readers won't recognize it. Test any colored code with a real phone before you print a batch.

Things worth knowing

• The code is generated locally from the text you type; nothing you enter is transmitted to a server.
• These are static codes — the content is baked into the pattern. You can't edit the destination later or track scans; changing the text produces a brand-new code, so reprint if you've already distributed one.
• Longer text makes a denser code. A short link scans more reliably than a long one, so shorten URLs before encoding when you can.
• The download is a high-resolution PNG named qrcode.png, ready to drop into a design or send to print.