★ Build #30 · The QR Code Studio

Make a QR Code in 5 Seconds

Type a link or click a preset. Customise the look. Download print-ready PNG or vector SVG. Stick it on a bin, a flyer, a van — anywhere people can scan with a phone camera.

📜 Read the QR Code Doctrine (MD-440) →

① What should the QR point to?

Quick presets — your most-shared pages

② Style it

Foreground colour

the dots

Background colour

behind the dots

Size (pixels)

Error correction

Dot style

Margin (white space)

③ Preview & download

— 0 chars

PNG = best for web/email · SVG = scales infinitely (use for posters)

🎯 How to use these QR codes well

📏 Print at least 2cm × 2cm

Smaller than that and most phone cameras struggle. For posters seen from a distance, scale up — rough rule: 1cm of QR per 1m of viewing distance.

🛡️ Use error-correction H if you add a logo

High ECC lets the QR survive a centre logo, scratches, dirt or printing dropouts. Costs you nothing in scan speed.

🌓 Keep contrast strong

Dark dots on light background scans best. Avoid inverted (light on dark) — many cameras refuse them. The defaults here are safe.

🔗 Test before you print 1,000

Always scan the printed sample with two different phones (iPhone + Android) before you commit. Different cameras, different results.

📐 Leave the white margin

QR codes need a "quiet zone" around them — at least 4 modules of blank space. The default margin handles this.

🔁 Permanent vs disposable

Once printed, the QR target URL cannot change. Either point to a stable page (e.g. /bin-finder) or use a redirect like /go/ that you can repoint later.