What Tunnee does
Tunnee is a secure localhost tunneling tool. You run it against a local port, and it gives you a public HTTPS URL that forwards traffic back to your machine.
In practice, that means you can take something running on localhost and make it
reachable from the internet without setting up a VPS, touching DNS, or building your own reverse
proxy stack first.
It exists for the awkward gap between local development and real integrations: third-party services want a public callback URL, but your app is still on your laptop.