Dynamic QR Code Generator

A free QR code generator that turns any URL, Wi-Fi credential, vCard or block of text into a downloadable scannable image. Customise size, colors and error-correction level, then print it on business cards, table tents or product packaging.

Every decision in a business eventually reduces to a number — margin, ROAS, payback period, break-even. Getting those numbers fast and accurate is how operators avoid leaving money on the table. The Dynamic QR Code Generator sits in that toolkit — it generate printable QR codes for URLs, Wi-Fi, vCards and menus with custom colors and error correction. Enter your numbers above and the result updates instantly; every step of the math is shown in the Derivation panel so you can see exactly how the answer was reached.

Where

data

URL, text, Wi-Fi or vCard payload

version

Grid size (auto-selected, 21×21 → 177×177)

EC-level

Error correction: L ≈7%, M ≈15%, Q ≈25%, H ≈30%

1. 01Paste "https://yourcafe.com/menu" into the content box.
2. 02Choose Medium error correction (survives small scuffs).
3. 03Set size to 512px for a crisp table-tent print.
4. 04Download the PNG and send to your print shop.