Privoxy is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details, which is available from the Free Software Foundation, Inc, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
Privoxy is evolved, and derived from, the Internet Junkbuster, with many improvments and enhancements over the original.
Junkbuster was originally written by Anonymous Coders and Junkbusters Corporation, and was released as free open-source software under the GNU GPL. Stefan Waldherr made many improvements, and started the SourceForge project Privoxy to rekindle development. There are now several active developers contributing. The last stable release of Junkbuster was v2.0.2, which has now grown whiskers ;-).