AdBlock - Ad blocker for Chrome, Safari and Opera on desktop and Safari for iOS devices.
Polipo - A small and fast caching web proxy (a web cache, an HTTP proxy, a proxy server).
AdClear - AdClear platform provides Tracking, Analysis and Optimization of the online marketing activities.
ExaProxy - ExaProxy is a a high-performance non-caching proxy.
BLOCK THIS! - Block This 3.0 is a FREE and Open Source ad blocker for Android that works in all apps and browsers!
Privoxy - Privoxy helps users to protect their privacy.