Decide what text, URL, or data the QR code should contain
Use QR code generation software or an online QR code generator
Enter the desired data into the generator
Select the QR code version and error correction level if needed
Generate the QR code
Save or export the QR code image
Print or display the QR code at the required size
Test the QR code with a scanner to confirm it works
If drawing by hand, use a square grid and mark the black modules exactly as shown by the generated pattern
Keep the three large corner finder squares clear and accurate
Preserve the quiet border around the QR code
Fill in the remaining black squares according to the generated layout