Copyright © 2001-2009 by Privoxy Developers
Some source code is based on code Copyright © 1997 by Anonymous Coders and Junkbusters, Inc. and licensed under the GNU General Public License.
Privoxy is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2, as published by the Free Software Foundation.
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 details.
You should have received a copy of the GNU GPL along with this program; if not, write to the
Foundation, Inc. 51 Franklin Street, Fifth Floor
Boston, MA 02110-1301
But the web, its protocols and standards, and with it, the techniques for forcing ads on users, give up autonomy over their browsing, and for tracking them, keeps evolving. Unfortunately, the Internet Junkbuster did not. Version 2.0.2, published in 1998, was (and is) the last official release available from Junkbusters Corporation. Fortunately, it had been released under the GNU GPL, which allowed further development by others.
So Stefan Waldherr started maintaining an improved version of the software, to which eventually a number of people contributed patches. It could already replace banners with a transparent image, and had a first version of pop-up killing, but it was still very closely based on the original, with all its limitations, such as the lack of HTTP/1.1 support, flexible per-site configuration, or content modification. The last release from this effort was version 2.0.2-10, published in 2000.
The result of this is Privoxy, whose first stable version, 3.0, was released August, 2002.
Current Privoxy Team:
Fabian Keil, lead developer
David Schmidt, developer
Former Privoxy Team Members:
Thanks to the many people who have tested Privoxy, reported bugs, provided patches, made suggestions or contributed in some way. These include (in alphabetical order):
Andrew J. Caines
Michael T. Davis
Eric M. Hopper
Bert van Leeuwen
Bobby G. Vinyard
Privoxy is based in part on code originally developed by Junkbusters Corp. and Anonymous Coders.
Privoxy heavily relies on Philip Hazel's PCRE.
The code to filter compressed content makes use of zlib which is written by Jean-loup Gailly and Mark Adler.
On systems that lack snprintf(), Privoxy is using a version written by Mark Martinec. On systems that lack strptime(), Privoxy is using the one from the GNU C Library written by Ulrich Drepper.