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…

Polipo is a lightweight caching and forwarding web proxy server.

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

Ad Muncher is a powerful advert and popup blocking system for all browsers and advert-displaying programs.

Qustodio is a parental control app for Android.