ngrok

TLDR

Expose local port

$ ngrok http [8080]

Expose with subdomain

$ ngrok http --subdomain=[myapp] [8080]

TCP tunnel

$ ngrok tcp [22]

Inspect traffic

$ ngrok http [8080] --inspect

Start with config

$ ngrok start [tunnel-name]

Show authtoken

$ ngrok config add-authtoken [token]

TLS tunnel

$ ngrok tls [443]

SYNOPSIS

ngrok [command] [options]

DESCRIPTION

ngrok creates secure tunnels to localhost. It exposes local servers to the internet.
The tool provides public URLs. Useful for webhooks, demos, and testing.
ngrok tunnels localhost to web.

PARAMETERS

COMMAND

ngrok command.

http PORT

HTTP tunnel to port.

tcp PORT

TCP tunnel.

tls PORT

TLS tunnel.

config SUBCOMMAND

Configuration commands.

--subdomain NAME

Custom subdomain.

--help

Display help information.

CAVEATS

Free tier has limitations. Account required for features. URLs change on restart.

HISTORY

ngrok was created by Alan Shreve to provide secure tunnels for local development.