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Zenarmor vs E2Guardian: catalog facts
Zenarmor	E2Guardian
Freemium Free to start, with paid plans for business features.	Free Free to download and use.
Linux, Self-hosted	Linux, Self-hosted
Web and application filtering on your own gateway Runs on a gateway, in the cloud or on an endpoint	Proxy, transparent and ICAP modes Filters on content, not only domain names
Closed source Marketing and higher tiers are aimed at businesses	Needs a Linux server and proxy configuration knowledge Filtering encrypted traffic requires extra setup
Self-hosted, Hosted service	Self-hosted
Closed source	Closed source
License: Proprietary	License not stated
Not stated if an account is 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 October 2, 2026

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