Answer by Ajmal Ansari for How can I access my localhost from my Android device?

This solution is usable when your mobile device and computer is not in same network:

You need to use port forwarding in this case. In the Google chrome inspect window (chrome://inspect) You can see the connected devices.

Click on the port fowading button, and set a random port say 3000 to the port which your laptop uses say 8080.

now use localhost:3000 from from device to access the localhost:8080(or_whatever_ip:portno) in the laptop. You can check it in the mobile browser. Try localhost:3000 in the mobile browser. Make sure to check the "Enable port forwarding" checkbox in the "Port forwarding settings" window