Ultrasurf is a product of Ultrareach Internet Corporation. The program was originally designed to help users in China browse the world wide web without having to deal with the great firewall. Since then, it has grown and expanded to become a very popular tool for people wishing to bypass censorship and firewalls using an HTTP proxy, and employs encryption protocols for privacy.
UltraSurf is a must-have Internet browser/anonymizer which allows users to browse the Internet with complete anonymity. Without the need to install the program, does not leave trace in Windows registry, and can be started from any type of portable media (memory card, CD, USB sticks).
UltraSurf includes access to an Internet browser and gives you access to a free proxy, making it possible to tunnel through the Internet without coming into contact with local or government firewalls. UltraSurf is currently compatible with Internet Explorer and Firefox, though when you run the program, IE will by default open up. In the end, we were pleased to see that when we used it with Internet Explorer, UltraSurf was able to effectively encrypt all of our Internet activity completely free of charge and we weren’t forced to purchase a VPN connection.
It currently boasts as many as 11 million users worldwide. The tool has been lauded as “one of the most important free-speech tools on the Internet” by Wired magazine, and as the “best performing” circumvention tool by Harvard University in a 2007 study; a 2011 study by Freedom House ranked it fourth.