Sign up on this page. You receive a unique API key.
Run one command
The setup script installs the tunnel client, configures your subdomain, and enables auto-start.
You are live
Your app is accessible at yourname.tunnel.yamlcreator.dev with auto-HTTPS.
Common Questions
What about port conflicts?
The tunnel connects to your localhost port. If two people both use port 3000, that is fine — they are on different machines. The subdomain routes to each person individually. If you have a port conflict on your own machine, just pass a different port: --port 3001
Does it work behind firewalls?
Yes. The tunnel client connects outbound, so it works through NAT, corporate firewalls, and restrictive networks. No inbound ports needed on your machine.
Is HTTPS automatic?
Yes. Every subdomain gets a Let's Encrypt certificate automatically. No manual setup required.