Apps similar to Multi Port Forwarder include Router Port Forwarding. It's paid, but UPnP Wizard and Robusta Port Forwarder are free. Other options are Simple Port Forwarding, PFConfig, AUTAPF and Portfwd. In total there are nine apps like Multi Port Forwarder for Windows, Linux and Mac.
Router Port Forwarding is a very powerful port forwarding and port triggering software for router. You can easily add, delete, view port forwarding entry of router. At the same time, you even can monitor the change of your router's port forwarding.
Simple Port Forwarding works with WebPages and not directly with your router. Making it a safe program to use. Its no different than using Firefox, IE or any other browser to setup port forwarding yourself.
United States
PortForward's PFConfig Software lets you forward ports on any router for any program. If you need to port forward, then PFConfig will do the hard work for you.
A simple port mapping tool. UPnP Wizard allows you to manage all of the Universal Plug and Play (UPnP) port mappings on your router. You don't need to hassle with your router's port forwarding interface.
United States
Robusta Port Forwarder is a utility application that eases the management of port forwarding through the UPNP protocol. This product helps you create an open port on your router, via a port forward. Open ports are used mainly for gaming, torrenting and voice-over IP (VOIP)...
United Kingdom
Reliable TCP and UDP port forwarding for Windows. Keeps the data flowing whenever the network is ready. Efficiently forwards many ports at once. Administer locally, or remotely using a Web browser. Supports real-time, scriptable IP filtering.
United States
A GTK application to access the parameters of the router exposed via UPnP-IGD. Access to network speed, external IP and model name. It can manage port forwarding through a simple GUI interface.
Italy
EU
Did you ever feel the urge to map your networking ports using your Airport Basestation or a UPNP router? Did you ever want your application to be reachable from the internet, even in a home networking setup? Don't despair anymore. Port Map and TCMPortMapper are here!
Germany