IP changing software

I need a IP changing software. Pls anyone suggest a free,tested and reliable IP changing software.

 

I'm using foxy proxy, an addon for firefox..as long as I used it for almost 3 months it's works like a charm..maybe anyone like to add another suggestion?

 

Can u pls give me the link to download? Thanks.

 

you can download from here: foxyproxy.mozdev.org it's their official site

 

You can use GAppProxy. GAppProxy is written in Python and run on the Google App Engine. The greatest advantage of the application is you do not need a dedicated server and the speed is very fast

Read more at http://www.vpnlive.net/proxyarticle/open-source-proxy-server-google-app-proxy

 

This is really free and tested: your-freedom.me. You can hide your ip with it and it works with openvpn. Check it out.