FreeProxy has been discontinued. Similar apps include Squid, which is free and open source. Other options are CCProxy, 3proxy, WinGate and CacheGuard Gateway. In total there are eight Proxy Services like FreeProxy for Windows, Linux, Mac and self-hosting.
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Squid has extensive access controls and makes a great server accelerator.
Want to share Internet connection? Get every computer online through a single Internet connection? Maximize the efficiency of your Internet access on a limited budget? Look no further! Get CCProxy, a small Internet sharing software!
China
3Proxy tiny free proxy server is really tiny cross-platform (Win32/Win64&Unix) freeware proxy servers set. It includes HTTP proxy with HTTPS and FTP support, SOCKSv4/SOCKSv4.5/SOCKSv5 proxy (socks/socks.exe), POP3 proxy, SMTP proxy, AIM/ICQ proxy (icqpr/icqpr.
WinGate Proxy Server is a highly capable integrated Proxy server, firewall and email server designed for access control, security and communications needs. What you do get is all the features of Standard license for 3 concurrent users.
New Zealand
CacheGuard Gateway is a free, open-source network security appliance for startups, growing businesses, and SMEs/SMBs that need enterprise-grade protection without the complexity or cost.
France
EU
Formerly a commercial product, Yahoo! donated it to the Apache Foundation, and it is now an Apache TLP.
United States