Privoxy is a web proxy with advanced filtering capabilities for protecting privacy, filtering web page content, managing cookies, controlling access, and removing ads, banners, pop-ups and other obnoxious Internet junk. Privoxy has a very flexible configuration and can be customized to suit individual needs and tastes. Privoxy has application for both stand-alone systems and multi-user networks. Privoxy is based on the code of the Internet Junkbuster. Junkbuster was originally written by JunkBusters Corporation, and was released as free open-source software under the GNU GPL. Stefan Waldherr made many improvements, and started the SourceForge project to continue development. Privoxy continues the Junkbuster tradition, but adds many refinements and enhancements.