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E2Guardian vs NxFilter: catalog facts
E2Guardian	NxFilter
Free Free to download and use.	Free Free for all uses, including commercial ones.
Linux, Self-hosted	Self-hosted
Proxy, transparent and ICAP modes Filters on content, not only domain names	Per-user policies and reports with Active Directory integration Screen time control and data caps
Needs a Linux server and proxy configuration knowledge Filtering encrypted traffic requires extra setup	Not open source More setup than needed for a single household
Self-hosted	Downloadable app, Self-hosted
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is 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 23, 2026

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