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UPnP Port Forwarding for Java couldn't be any easier!

WaifUPnP is an extermely lightweight Java library that allows you to:

using literally 1 line of code, as it should be!

It's as easy as:

UPnP.openTCP(<port number here>);

Usage Examples are included.


To compile, import the project in Netbeans. Alternatively, download the binaries from

Once you have the .jar files:


Java 6 and newer


WaifUPnP is a very basic implementation of UPnP, that only scans for the default gateway, and can only open/close ports.

While this is enough for most people, if you need a full implementation of UPnP, you should take a look at Cling


Copyright (C) 2015-2018 Federico Dossena

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 2.1 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see


Languages used: Java