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Squid vs 3proxy: catalog facts
Squid	3proxy
Free Free and open source under the GNU GPL; donations accepted.	Free Free and open source.
Windows, Linux, Self-hosted	Windows, Linux, Self-hosted, Command line
Caching that reduces bandwidth use Extensive access control rules	HTTP, SOCKS and port mapping in one small server Runs on routers through an OpenWrt package
Configuration is large and takes time to learn Heavier than minimal proxies for simple forwarding	Configured through text files with no graphical interface Takes some networking knowledge to set up securely
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: GPL	License not stated
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 October 2, 2026

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