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DNSFilter vs E2Guardian: catalog facts
DNSFilter	E2Guardian
Paid Commercial subscription service with a free trial.	Free Free to download and use.
Web	Linux, Self-hosted
No hardware to deploy Content, threat and app filtering policies	Proxy, transparent and ICAP modes Filters on content, not only domain names
Built for organizations rather than individual home users Paid service after the trial	Needs a Linux server and proxy configuration knowledge Filtering encrypted traffic requires extra setup
Hosted service	Self-hosted
Closed source	Closed source
License not stated	License not stated
Account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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