ngrok is easy to install. Download a single binary with zero run-time dependencies for any major platform.
On Linux or OSX you can unzip ngrok from a terminal with the following command. On Windows, just double click ngrok.zip.
$ unzip /path/to/ngrok.zip
Most people set an alias for ngrok or keep it in their user folder for easy access in the command line.
Read the documentation on how to use ngrok. Try it out by running it from the command line:
$ ./ngrok help
To start a HTTP tunnel on port 80, run this next:
$ ./ngrok http 80
Free ngrok accounts give you more bandwidth, more active tunnels, more connections per minute, and other great features. Upgrade to a paid account to get reserved ngrok URLs and custom CNAMEs or to add team members to your account.