How to run my Angular site on mobile device that is running localhost on my windows desktop [duplicate]

try ng serve --host option as explained in this issue: https://github.com/angular/angular-cli/issues/1793 comment by intellix.

1. ng serve --host 0.0.0.0
2. Find your local IP address by following this
3. Navigate to <local IP adress>:4200 from any device on the same network.

NOTE: If you get CONNECTION_REFUSED just disable your firewall and you should be good to go.

otherwise, try https://ngrok.com/ to open a tunnel from your local network to your computer’s localhost. Basically your computer forwards the 4200 port to an external IP and port that any device on the network can access.