Privoxy is a free non-caching web proxy with filtering capabilities for enhancing privacy, manipulating cookies and modifying web page data and HTTP headers b…

Untangle wins a network security solution.

Pluckeye is a filter for people who want to limit their Internet access.

Polipo is a lightweight caching and forwarding web proxy server.

Endian Firewall Community is an Open Source Firewall and UTM Appliance with offers unique usability and features.