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Squid vs Privoxy: catalog facts
Squid	Privoxy
Free Free and open source under the GNU GPL; donations accepted.	Free Free software; donations are welcome.
Windows, Linux, Self-hosted	Windows, macOS, Linux
Caching that reduces bandwidth use Extensive access control rules	Filters both HTTP headers and page content Works for one machine or a whole network
Configuration is large and takes time to learn Heavier than minimal proxies for simple forwarding	Configuration takes effort to learn No trusted build infrastructure for binary packages
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License: GPL	License: GPL-2.0-or-later
No account needed	No account needed
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.