How to Host a Minecraft Server Without Port Forwarding
Set up a Minecraft server on your PC and let friends join without touching your router. Step-by-step guide using a TCP tunnel.
You want to play Minecraft with friends. You're running a server on your PC. The problem: your friends can't connect because your computer is behind a router and firewall.
The usual advice is "set up port forwarding." That means logging into your router, finding the NAT settings, creating forwarding rules, hoping your ISP gives you a public IP, and praying nothing breaks when your IP changes.
There's a much easier way.
What you need
- A Minecraft server running on your PC (Java Edition, default port 25565)
- Localport CLI installed (30-second install)
- A free Localport account (sign up here)
Step 1: Start your Minecraft server
If you haven't already, download and run the Minecraft server:
java -Xmx2G -Xms1G -jar server.jar nogui
Make sure it's running and you can connect locally at localhost:25565.
Step 2: Start the tunnel
Open a new terminal window (keep the Minecraft server running) and run:
localport tunnel --token YOUR_TOKEN --local localhost:25565 --protocol tcp
You'll see:
Tunnel established. Forwarding:
tcp → tcp://abc123.tunnel.localport.dev:47266
Step 3: Share with friends
Send your friends the address: abc123.tunnel.localport.dev:47266
They add it as a server in Minecraft:
1. Multiplayer → Add Server
2. Server Address: abc123.tunnel.localport.dev:47266
3. Done → Join
That's it. No port forwarding, no router changes, no static IP.
Keep both windows open
Tips for a smooth experience
- Reserved ports (Pro plan) keep the same port across sessions, so you don't need to share a new address every time you restart.
- Latency is minimal — Localport adds single-digit milliseconds, negligible for Minecraft.
- Works behind any network — University dorms, corporate WiFi, mobile hotspots, ISPs with CGNAT. If you can browse the web, Localport works.
Works for other games too
| Game | Default Port | Tunnel command |
| Minecraft (Java) | 25565 | --local localhost:25565 --protocol tcp |
| Valheim | 2456 | --local localhost:2456 --protocol tcp |
| Terraria | 7777 | --local localhost:7777 --protocol tcp |
| Factorio | 34197 | --local localhost:34197 --protocol tcp |