The cloud-managed OPNsense alternative — same foundation, managed for you.
OPNsense is a mature, well-regarded open-source firewall — and like the leading commercial firewalls and Enforza, it is built on the same battle-tested, standard network packet-filtering. The engine is not the difference. The difference is that OPNsense is a box you install, patch, monitor and scale yourself, while Enforza delivers the same firewall job as a managed cloud control plane: policy-as-code over GitHub, one pane across the fleet, compliance baked in, on any cloud.
Same proven foundation — delivered a different way
Before the differences, the honest part. OPNsense, the leading commercial firewalls and Enforza are all built on the same battle-tested, standard network packet-filtering. The packet engine is not the differentiator, and we will not pretend ours is. What differs is how the firewall is delivered and operated — and that is the whole story of this page.
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The same proven foundation
OPNsense, the leading commercial firewalls and Enforza are all built on the same battle-tested, standard network packet-filtering the industry has trusted for two decades. The packet engine is not where products differ — and we will not pretend ours is magic.
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OPNsense is genuinely good
A mature, actively-developed, well-regarded open-source firewall with a frequent release cadence, a free Community edition, a Deciso-backed Business edition and a large, knowledgeable community. If you want a flexible box you control end to end, it earns its reputation.
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Where we differ is delivery
Not the engine — the operating model. OPNsense is a self-managed box you install, patch, monitor and scale yourself. Enforza is the same firewall job delivered as a managed cloud control plane: policy-as-code over GitHub, one pane across the fleet, compliance baked in, on any cloud.
The wedge is operations, not the firewall
OPNsense has no per-GB tax and never has — and we will not pretend otherwise. The cost that grows is the operational one: installing, patching, monitoring, scaling and proving compliance on every box, by hand. Enforza wraps the same firewall job in a managed control plane, so a cloud team carries the policy, not the plumbing.
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Managed control plane, not a box you run
OPNsense is yours to install, patch, monitor, back up and scale — every instance, by hand or with your own tooling. Enforza is a managed SaaS control plane: the firewall self-upgrades with rollback, fails closed, and registers itself. You own the data path; you don't own the operational toil.
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GitOps policy-as-code, or the console
Drive policy from a GitHub pipeline — every change a pull request, line-by-line diff, reviewed and version-controlled — or use the Cloud Controller console. Same firewall underneath, your team's workflow on top. OPNsense config is box-by-box or community-tooled, with no first-party GitOps story.
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One pane of glass across the fleet
See and push policy to every firewall across AWS, Azure, Google Cloud and on-prem from one console, with multi-firewall live log streaming. OPNsense's central management is a self-hosted Business-edition plugin you operate yourself — there is no managed fleet plane for you to lean on.
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Compliance baked into every publish
25 framework packs / 210 controls — advise or enforce on every policy publish, with the evidence trail that audits ask for. Compliance frameworks are a category OPNsense simply does not compete in on its marketing surface.
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Cloud-native by design
Secure NAT and identity-aware L7 (SNI / FQDN) egress filtering in one appliance, with an object manager that imports AWS IP ranges and Azure Service Tags. Running OPNsense in a cloud is a self-managed marketplace VM — it does not remove the cloud's own native egress stack around it.
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Logs to your own SIEM
Multi-firewall live logs stream to your own SIEM — never through Enforza's cloud. You keep custody of your telemetry while still getting the managed experience.
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A single-pass packet classification and verdict engine, purpose-built for cloud
We share the proven, standard packet-filtering foundation — but on top of it Enforza runs its own single-pass packet classification and verdict engine: each flow is classified once, in microseconds (p99 ~49.5 µs, measured), then enforced in-kernel at line rate, with 98.5% of packets deciding on the kernel fast path. Microsecond-class, zero-dropped-packet, and built for cloud egress and east-west — not a general-purpose box you tune to get there.
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No exposed management plane — a smaller attack surface
A self-managed box like OPNsense needs a reachable management interface to administer it — exposed to the internet, or behind a VPN you stand up and maintain. That is attack surface on the security device itself. Enforza's control plane is outbound-only to the Enforza cloud: no inbound management port, no admin UI to expose. The firewall manages up, never in — there is nothing on it for an attacker to reach.
One focused appliance, not a bundle of projects to assemble
OPNsense's breadth is a real strength when you want a do-everything box. But that breadth is an ecosystem of separate open-source projects and plugins you assemble, wire together and keep patched. Enforza takes the opposite stance — deliberately focused on cloud egress and east-west control, the right tool for that job.
- One focused appliance for cloud egress, ingress and east-west control — not a kitchen-sink platform.
- We don't bundle many separate open-source projects and plugins for you to assemble, wire together and keep patched.
- One unified policy, one log format, one per-rule counter — instead of stitching several tools with several rule formats.
- The ~98% of firewall control most cloud teams actually use, with none of the feature sprawl you carry but never switch on.
Enforza vs OPNsense — including where OPNsense wins
Here is the honest, row-by-row breakdown — including where OPNsense wins. We group it three ways: 5 rows where the two share the foundation or sit at parity, 9 where Enforza leads on delivery, fleet and compliance, and 5 where OPNsense is genuinely the stronger choice. A comparison that hides the trade-offs is not worth trusting.
- Shared / parity Same foundation or parity
- Enforza advantage Enforza is the stronger choice
- OPNsense advantage OPNsense is the stronger choice
| Capability | Enforza | OPNsense | Verdict |
|---|---|---|---|
| Packet-filtering foundation | Built on the same battle-tested, standard network packet-filtering | Built on the same proven, standard packet-filtering the leaders use | Same |
| Stateful L3–L4 firewalling | Stateful inspection across L3/L4, egress, ingress and east-west | Mature stateful firewall with live view on passed/blocked traffic | Same |
| Intrusion detection / prevention controls | Threat-hardening and IDS/IPS-style controls on the data path | Inline intrusion prevention via a well-known open-source engine | Same |
| Domain / FQDN egress control | SNI and FQDN allow- and deny-lists, built into one policy | Achievable via add-on tooling; assembled and tuned by you | Same |
| Secure NAT | Secure source NAT on the appliance, alongside egress filtering | Full NAT support as part of the routing/firewall platform | Same |
| Operating model | Managed control plane — self-upgrade with rollback, fail-closed | Self-managed box — you install, patch, monitor and scale each one | Enforza |
| Policy-as-code / GitOps | GitHub pipeline — every change a reviewed, version-controlled PR | Box-by-box config or community tooling; no first-party GitOps | Enforza |
| Fleet management | One pane of glass across every cloud, push-to-many, live logs | Self-hosted central plugin (Business edition) you run yourself | Enforza |
| Compliance frameworks | 25 framework packs / 210 controls — advise or enforce on publish | No marketed compliance-framework grid or controls catalogue | Enforza |
| Cloud-native object imports | Object manager imports AWS IP ranges and Azure Service Tags | General-purpose objects; no cloud-provider range/tag imports | Enforza |
| Identity-aware L7 without TLS decryption | SNI and FQDN filtering with no TLS decryption, no key custody | L7/web filtering typically means standing up and tuning add-ons | Enforza |
| Multi-cloud reach from one plane | One control plane across AWS, Azure, Google Cloud and on-prem VMs | Per-cloud self-managed marketplace VMs, operated independently | Enforza |
| Classification engine | Single-pass engine — classify once at ~49.5 µs p99 (measured), 98.5% in-kernel fast path | General-purpose stack you size and tune for cloud throughput yourself | Enforza |
| Management-plane attack surface | Outbound-only control plane — no inbound management port, no admin UI to expose | Needs a reachable management interface — exposed, or behind a VPN you run | Enforza |
| Licence cost | A genuine free tier and a flat per-firewall subscription beyond it | A free, open-source Community edition — you will not beat €0 | OPNsense |
| Network-edge breadth | Focused on cloud egress, ingress and east-west control — by design | Do-everything box: VPN, DHCP, DNS, captive portal, traffic shaping | OPNsense |
| Plugin ecosystem | One focused appliance; we don't bundle many projects to assemble | A broad plugin catalogue and an established add-on ecosystem | OPNsense |
| Full local control / no SaaS dependency | Managed control plane; you own the data path, we run the plane | Entirely self-hosted — total local control, no SaaS in the loop | OPNsense |
| On-prem / appliance maturity | Cloud-first; runs on any Linux VM, including on-prem | Mature self-host GUI and a long-standing hardware-appliance story | OPNsense |
Where each one fits
Where Enforza wins
- Managed, not a weekend project. OPNsense is yours to install, patch, monitor and scale on every box. Enforza self-upgrades with rollback, fails closed, and is operated as a managed control plane — same firewall job, far less toil.
- GitOps or console, your team's workflow. Drive policy from a GitHub pipeline as reviewed pull requests, or from the Cloud Controller console — over one firewall fleet. OPNsense has no first-party policy-as-code story.
- One pane of glass across clouds. See and push policy to every firewall across AWS, Azure, Google Cloud and on-prem from one console, with multi-firewall live logs streaming to your own SIEM.
- Compliance baked in. 25 frameworks / 210 controls with advise-or-enforce on every publish — a category OPNsense does not compete in.
- Cloud-native by design. Secure NAT plus identity-aware L7 (SNI/FQDN) egress filtering in one appliance, with AWS IP-range and Azure Service-Tag imports — not a self-managed VM bolted into the cloud.
- Focused, not a bundle. One appliance for cloud egress and east-west control — the ~98% you actually use, without stitching together and maintaining many separate open-source projects.
When OPNsense is the right call
- You want a free, open-source firewall you control end to end, with no subscription and no SaaS plane in the loop.
- You need a do-everything network-edge box — VPN concentration, DHCP, DNS, captive portal or traffic shaping — in the same product, not a focused cloud appliance.
- You value the breadth of an established plugin ecosystem and the flexibility to assemble exactly the stack you want.
- You run on-prem or on hardware appliances and want the mature self-host GUI and long-standing community behind it.
OPNsense alternative — common questions
Is Enforza better than OPNsense?
Neither is simply 'better' — they are built for different jobs, and OPNsense is genuinely good at its own. Both sit on the same battle-tested, standard network packet-filtering, so the firewall engine is not the difference. OPNsense is a flexible, free, self-managed box you run end to end. Enforza delivers the firewall job as a managed cloud control plane with GitOps policy-as-code, one-pane fleet management across clouds, and compliance baked in. If you want a do-everything box you own outright, OPNsense fits. If you want a managed, compliant, multi-cloud firewall fleet without the operational toil, Enforza fits.
Don't OPNsense and Enforza use the same firewall foundation?
Yes — and we say so plainly. OPNsense, the leading commercial firewalls and Enforza are all built on the same proven, standard network packet-filtering the industry has trusted for two decades. The packet engine is not the differentiator, and we don't claim ours is magic. The difference is delivery: OPNsense is a self-managed box, while Enforza wraps the same firewall job in a managed control plane, policy-as-code, fleet management and compliance.
What is the real difference between Enforza and OPNsense?
Operations, not raw firewalling. OPNsense is a box you install, patch, monitor, back up and scale yourself, one instance at a time, with config managed box-by-box. Enforza is a managed SaaS control plane: the firewall self-upgrades with rollback, policy is driven from a GitHub pipeline or the console, one pane manages the whole fleet across AWS, Azure, Google Cloud and on-prem, and compliance is advised or enforced on every publish. You own the data path; you don't own the operational burden.
Where is OPNsense genuinely the better choice?
In several places, and we concede them. OPNsense is free and open-source — you will not beat €0 on licence. It is a do-everything network-edge box with VPN, DHCP, DNS, captive portal and traffic shaping that Enforza deliberately does not try to be. It has a broad plugin ecosystem, total local control with no SaaS dependency, and a mature self-host GUI and hardware-appliance story. If those matter most, OPNsense is the right call.
Is Enforza just OPNsense with a bunch of plugins bundled?
No — the opposite. OPNsense's strength is breadth: a platform you extend by assembling many separate open-source projects and plugins, then wire together and keep patched yourself. Enforza is deliberately focused — one appliance for cloud egress, ingress and east-west control, with one unified policy, one log format and one per-rule counter. We keep it simple rather than bundling lots of projects for you to maintain. That focus is the ~98% of firewall control most cloud teams actually use, without the sprawl.
Can I manage OPNsense as a fleet across clouds the way Enforza does?
Not as a managed plane. OPNsense's central management is a self-hosted Business-edition plugin you stand up and operate yourself, and cloud deployment is a self-managed marketplace VM per cloud. Enforza gives you a managed control plane out of the box: one console across AWS, Azure, Google Cloud and on-prem, push-to-many policy, multi-firewall live log streaming, and self-upgrade with rollback — no central server for you to run.
Does Enforza do compliance the way OPNsense does?
Compliance is a clear difference. OPNsense does not market a compliance-framework grid or a controls catalogue. Enforza ships 25 framework packs covering 210 controls and advises or enforces them on every policy publish, with the evidence trail audits ask for. If regulated workloads and audit evidence are part of your remit, this is a category OPNsense does not compete in.
Does Enforza have a management interface I need to expose, like a self-managed box?
No — and this is a real security difference. A self-managed firewall like OPNsense needs a reachable management interface to administer it: exposed to the internet, or behind a VPN you stand up and maintain. Either way, that is attack surface on the security device itself. Enforza's control plane is outbound-only to the Enforza cloud — there is no inbound management port and no admin UI to expose. The firewall manages up to the cloud, never accepts management in, so there is nothing on the device for an attacker to reach.
Is Enforza just the same firewall foundation with no engineering of its own?
No. Enforza shares the proven, standard packet-filtering foundation the leading firewalls are built on — we say so plainly — but on top of it we run our own single-pass packet classification and verdict engine. Each flow is classified once, in microseconds (p99 around 49.5 µs, measured at sustained load with the CPU 99% idle), then enforced in-kernel at line rate, with 98.5% of packets deciding on the kernel fast path and zero dropped packets through the throughput run. It is microsecond-class and purpose-built for cloud egress and east-west control, rather than a general-purpose box you size and tune to reach the same place.
Does Enforza decrypt TLS to filter by hostname?
No. Enforza filters egress by SNI and FQDN without decrypting TLS and without holding your keys. Identity-aware L7 control is built into the same policy, so there is no separate web-filtering stack to stand up, no man-in-the-middle and no key custody.
Is there a free way to try Enforza?
Yes. Enforza has a genuine free tier — one firewall with L3/L4 policy and network objects, no card required. A 14-day trial unlocks the full feature set, including L7/FQDN filtering, compliance packs, log export and live logs. The paid plan is £179/month per firewall, dropping to £149 from your sixth, plus the Linux VM you already run. OPNsense's Community edition is free and open-source; the difference is the managed control plane, GitOps and compliance you get with Enforza, not the price of the licence.
Keep the firewall. Lose the operational toil.
The same proven firewall foundation OPNsense and the leading vendors are built on — delivered as a managed control plane with GitOps policy-as-code, one-pane fleet management and compliance baked in, on any cloud. Start free, no card.