wireless serial communication using arduino uno wifi

Hello,

I was wondering if it is possible to have two arduino uno wifi devices communicate with each other without a Wifi network?

Thanks in advance.

What WiFi devices do you have?

Your title is a bit confusing so I wonder if you are just enquiring about wireless communication in general? If so the nRF24l01+ modules (cheap and effective) may be of interest. Have a look at this Simple nRF24L01+ Tutorial.

...R

I was wondering if it is possible to have two arduino uno wifi devices communicate with each other without a Wifi network?

I interpret your question that way you want to communicate using WiFi but without the need to have an access point or router that form a real WiFi network.
If that was your question, the answer is yes. The ESP8266 included in the UNO WiFi supports the so-called ad-hoc mode although it's not easily configurable.
It seems to be easier and better documented to put one into access point mode and let the other connect to that access point.