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

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