A QR Code (Quick Response) is a cell phone readable two dimensional bar code that can store a website address, plain text, phone numbers, email addresses and pretty much any other alphanumeric data. You can read full Wikipedia description is here.
To create your own custom QR codes, you can use one of many websites designed for that purpose, like QR Code Generator.
- On that website, select the URL tab and enter your URL. The QR code will appear immediately.
- After you have entered the complete URL, save it with an appropriate name.
To use the QR codes, your phone needs to have built-in QR code reader functionality or a QR code reader app.
- Open your QR code reader or camera app.
- Point your phone at the code.
- Your app should read the code and ask your permission to go to the website, or take you there automatically.