You can add all kind of text into a QR code. Please note, that the pattern is more detailed the more content you add to it which can make it difficult to read with a cheap phones camera.
This tool uses a simple QR code API. Read more about QR codes and what they can contain.
How to read a QR code? Just open your phones camera and point it at the QR code.
Click to see generated QR code examples:
https://kenda.fi
Test it »+358 9 12345678
Test it »kenda@example.com
with mail subject and body text Test it »+358 40 12345678
with default message Test it »« all tools by Kenda