Develop locally, test on web
![](http://www.abubusoft.com/wp/wp-content/uploads/2021/06/ngrok-product-2.png)
Ngrok exposes local servers behind NATs and firewalls to the public internet over secure tunnels.
It’s a very useful tool, when you are developing on your PC and you need to expose your service on the web. It works on http and https.