Minecraft Port Checker
Test if port 25565 (or your custom Minecraft server port) is open to the internet.
Setting up a Minecraft server
- Make sure your Minecraft server is actually running on the machine you're testing.
- Find that machine's local IP (e.g. 192.168.1.50).
- Log into your router and forward TCP port 25565 to that local IP.
- Allow port 25565 through your computer's firewall.
- Come back here and click "Check port." It should show as Open.
Friends connect using your public IP (see What Is My IP). If you want a memorable address, use a dynamic DNS service like DuckDNS.
Common issues
- "Closed": Your server isn't running, or it's bound to a different port.
- "Filtered": Port forwarding or local firewall is blocking traffic. Check both.
- Bedrock Edition: Uses UDP port 19132, not TCP 25565. (Our checker tests TCP only.)