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pfBlockerNG vs Zenarmor: catalog facts
pfBlockerNG	Zenarmor
Free Installed as a package within pfSense software; the documentation lists no separate…	Freemium Free to start, with paid plans for business features.
Self-hosted	Linux, Self-hosted
Network-wide IP and DNS blocklists from the firewall Country and IP range blocking	Web and application filtering on your own gateway Runs on a gateway, in the cloud or on an endpoint
Only runs on pfSense Many options make setup involved for newcomers	Closed source Marketing and higher tiers are aimed at businesses
Self-hosted	Self-hosted, Hosted service
Closed source	Closed source
License not stated	License: Proprietary
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 September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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