Tor Browser - Tor is free software for enabling anonymous communication.
Proxifier - Proxifier extends the advantages of a proxy server to network applications that don't natively support it.
ProxAllium - ProxAllium is a FOSS GUI wrapper for Tor.
Proxycap - ProxyCap empowers you to divert your PC’s system associations through intermediary servers.
Proxychains - About proxychains tool: * It's a proxifier. * Latest version: 3.1
Vidalia - Vidalia is a cross-platform graphical controller for the Tor software, built using the Qt framework.