How do I access localhost in flutter?

On almost all networking systems, localhost uses the IP address 127.0. 0.1 . That is the most commonly used IPv4 “loopback address” and it is reserved for that purpose.

5 Methods to Solve the Localhost Refused to Connect Error

To run a Flutter application which is connected to the localhost, on a real device, first the real device and the machine which acts as localhost should be connected on the same network . Note: PORT_NUMBER is an integer from 1024 to 49151. Also you need to make sure the Firewall on windows allow you to connect.