Port 25565 — Minecraft Java
Quick reference for TCP/UDP port 25565, used by Minecraft Java. Includes what the service does, security guidance and related ports.
What is port 25565?
Minecraft Java Edition default.
What port does Minecraft Java use?
Minecraft Java listens on port 25565 by default.
Is port 25565 open? How to check
Run one of these from your computer, replacing HOST with the IP address or domain you want to test.
nc -zv HOST 25565
Test-NetConnection HOST -Port 25565
nmap -p 25565 HOST
A refused or timed-out connection means the port is closed or filtered by a firewall.
Security guidance
Medium risk — open with care
Port 25565 (Minecraft Java) can safely face the internet if you keep the software up to date, restrict admin endpoints, and use TLS where possible. Audit who can reach it and watch your logs.
Related ports
Frequently asked
What is port 25565 used for?+
Port 25565 is the standard TCP/UDP port for Minecraft Java. Minecraft Java Edition default.
What port does Minecraft Java use?+
Minecraft Java listens on port 25565 by default.
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