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Privoxy vs 3proxy: catalog facts
Privoxy	3proxy
Free Free software; donations are welcome.	Free Free and open source.
Windows, macOS, Linux	Windows, Linux, Self-hosted, Command line
Filters both HTTP headers and page content Works for one machine or a whole network	HTTP, SOCKS and port mapping in one small server Runs on routers through an OpenWrt package
Configuration takes effort to learn No trusted build infrastructure for binary packages	Configured through text files with no graphical interface Takes some networking knowledge to set up securely
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: GPL-2.0-or-later	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.