Enterprise NGFW Power
for the Firewall
You Already Run.
Layer 7 application control, TLS inspection, and real-time cloud-delivered threat intelligence that installs in minutes on OPNsense, turning it into an enterprise security powerhouse.
Start Your Free TrialFree tier available. Most teams are filtering Layer 7 traffic the same day.
Where Zenarmor Fits in the Firewall Landscape
From traditional commercial appliances, to the open-source firewalls many teams have migrated to, to the modern NGFW layer that brings them up to today's standard.
Traditional Firewalls
Fortinet, Cisco, SonicWall, consumer routers
- ✕Closed-source, vendor lock-in
- ✕Forklift hardware refresh cycles
- ✕Per-feature license sprawl
- ✕Limited customization & extensibility
- ✕Expensive multi-site licensing
- ✕Proprietary ecosystem & tooling
OPNsense
A modern, open-source firewall
- ✓Open-source and fully transparent
- ✓Runs on hardware you choose
- ✓Powerful stateful filtering, routing, VPN, HA
- ✓Vibrant community & plugin ecosystem
- △Layer 7 visibility via DIY add-ons
- △Multi-site management requires custom tooling
OPNsense + Zenarmor
The full modern NGFW stack
- ✓Everything OPNsense gives you, plus:
- ✓Layer 7 app control out of the box
- ✓Cloud-delivered threat intel with zero tuning
- ✓120+ URL categories & SafeSearch
- ✓Centralized multi-site Zenconsole
- ✓Real-time analytics & scheduled reports
✓ Full · △ Possible with DIY effort · ✕ Not available
Meet Zenarmor NGFW
Enterprise-grade next-gen firewall capability, deployed in minutes. No new hardware. No rip-and-replace.
Four Capabilities You Gain On Day One
TLS Inspection*
Deep packet inspection that sees inside encrypted traffic. Identify and control thousands of applications and protocols, even when they ride on port 443. Certificate-based or full TLS inspection catches malware and evasive threats other firewalls miss.
Application & User Control
Allow Microsoft 365 but block consumer Dropbox. Throttle streaming on guest VLANs. Per-user, per-group, per-app policy.
Cloud Threat Intelligence
Live feeds for malicious IPs, domains, phishing, C2, and crypto-jackers. Everything is updated continuously, no manual rules.
Web & Content Filtering
120+ URL categories, SafeSearch enforcement, and policy-based filtering across 300M+ sites. A perfect fit for K-12, healthcare, MSP, and enterprise alike.
* Basic TLS Inspection is included. Full TLS Inspection requires an SSE license.
Simple Management. Complete Visibility.
One site or fifty branches? Easily manage policy, view live traffic, and run forensics from a single Zenconsole. Real-time dashboards. Per-user reports. Exportable for audit and compliance.
Push consistent rules to every node, OPNsense or otherwise, from one console.
See top apps, users, threats, and bandwidth in real time.
PDF and CSV exports for compliance, ops review, and customer billing.
"For our teams, it's reassurance that we are running a system that is as secure as we can make it. Handling sensitive data requires us to use the highest grade software and devices available."
— Darren Yeates, Vice-chair and Technology Officer, Lowland Rescue Search Dogs Sussex
Recognized By
TMCnet Zero Trust Security Excellence Award
“Vendor to Watch” in Network Security
2026 Finalist — Best SASE Solution
Network Computing Awards 2026 FinalistWhat OPNsense teams are saying
"Many organizations struggle to introduce modern security capabilities without disrupting existing network deployments."
Frequently Asked Questions
Is there a free tier?+
Yes. Zenarmor Free Edition is available at no cost for home labs and small networks, with core app control and basic filtering included.
Will it slow down my existing firewall?+
Zenarmor is engineered for line-rate inspection on modest hardware. Sizing guidance is published for everything from a Protectli to multi-Gbps appliances.
What platforms is Zenarmor supported on?+
Zenarmor installs as a one-command plugin on current OPNsense stable releases, and is also supported on a range of other deployment targets including bare-metal Linux, virtual machines, and cloud workloads.
Does it replace tools like Suricata, Squid, or pfBlockerNG?+
Zenarmor supersedes most DIY stacks with a single integrated engine: L7 app control, threat intel, content filtering, and reporting, all managed from one UI.
Can I manage multiple sites centrally?+
Yes. Zenconsole lets you push policy, view analytics, and run reports across every connected node from one place, whether you have one site or fifty.
Supercharge your firewall today
Install takes minutes on OPNsense or your platform of choice. Free tier available.
Start Your Free Trial