Generate Whatsapp link to chat

The function of this online utility is to generate Whatsapp link to chat.

For example, if the international phone number is +60 17-123 4567, then the link is:

https://wa.me/60171234567

Another example, if the international phone number is +60 17-123 4567 and the message is Hello there!, then the link is:

https://wa.me/60171234567?text=Hello%20there!

Reference: How to use click to chat.