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Networking · head to head

Headscale vs OPNsense

Headscale logo

Headscale

Networking

Open source reimplementation of the Tailscale coordination server for a single organisation

From
Free
Rated
-
Full reviewWebsite
OPNsense logo

OPNsense

Networking

FreeBSD-based firewall and routing platform with weekly updates and a full configuration API

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Headscale the clients are proprietary software maintained by a company with no obligation to Headscale, so a client update can change protocol behaviour and break your control server until volunteers catch up.; OPNsense throughput depends entirely on hardware you selected yourself, and intrusion prevention at multi-gigabit rates will saturate a machine that handled plain firewalling fine, with no vendor sizing commitment to fall back on.
  • They diverge on capability: Headscale covers Self hosted control server, OPNsense covers Stateful firewall on pf.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Headscale and OPNsense actually diverge.

Attributes where Headscale and OPNsense differ
AttributeHeadscaleOPNsense
PlatformsLinux, Dockerx86-64 appliances, Virtual machines, Deciso hardware

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated), category (Networking).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Headscale

  • Self hosted control server
  • Access control policies
  • User separation
  • Pre-authentication keys
  • Subnet routers and exit nodes
  • Own or shared DERP

Only in OPNsense

  • Stateful firewall on pf
  • VPN suite
  • Suricata IDS and IPS
  • Full configuration API
  • High availability
  • Weekly update cadence

What people use each for

The jobs each tool is most often brought in to do.

Headscale

  • Running a mesh network where no third party may hold the device registrynot OPNsense
  • A homelab or personal fleet where paying per user for a hosted control plane is not worth itnot OPNsense
  • Air gapped or restricted environments that cannot reach an external coordination servicenot OPNsense
  • Keeping the Tailscale client experience while removing the vendor from the trust pathnot OPNsense

OPNsense

  • Replacing a small business firewall appliance whose renewal quote exceeded the cost of the hardwarenot Headscale
  • Branch offices where the firewall configuration must be produced by Ansible rather than by handnot Headscale
  • Sites that need WireGuard and intrusion prevention on the same box without separate feature licencesnot Headscale
  • A homelab or lab network needing VLAN routing, multi-WAN and DNS filtering on one machinenot Headscale

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Headscale

  • The clients are proprietary software maintained by a company with no obligation to Headscale, so a client update can change protocol behaviour and break your control server until volunteers catch up.
  • Features that live on the vendor side, including the admin console, Funnel and app connectors, do not exist here and cannot be added, so feature comparisons against Tailscale are misleading.
  • There is no official web interface, so day to day administration is a command line tool or one of several unofficial front ends of varying quality and maintenance.
  • It is deliberately single tenant, so a managed service provider cannot use one deployment to serve several customer networks.
  • Upgrades have required database migrations and policy format changes between releases, and with no support contract a failed migration on the control server is your problem alone.

OPNsense

  • Throughput depends entirely on hardware you selected yourself, and intrusion prevention at multi-gigabit rates will saturate a machine that handled plain firewalling fine, with no vendor sizing commitment to fall back on.
  • The weekly update cadence is good for security but means more change events than a team used to annual appliance firmware, and occasional regressions reach production installations.
  • FreeBSD underneath limits driver support compared with Linux, so recent network cards and some virtualisation drivers can be unsupported or slow.
  • The plugin ecosystem is uneven in quality; some plugins are maintained by a single contributor and can lag a major release, breaking a function you depended on.
  • Community support is a forum, so an outage at two in the morning on the free edition is your problem alone unless you bought the business subscription in advance.

Pricing, plan by plan

Headscale

Free
  • HeadscaleFree
    • Full functionality, no node limit
    • Official Tailscale clients on every platform
    • No vendor account required

OPNsense

Free
  • OPNsense Community EditionFree
    • MIT licence with no feature restrictions
    • All VPN, IDS and HA features included
    • Weekly updates and two major releases a year
  • OPNsense Business Edition$undefined/year
    • Stabilised update track lagging community releases
    • Commercial support from Deciso
    • Additional enterprise plugins and configuration backup

Which should you pick?

Choose Headscale if

  • You need self hosted control server.
  • You want to start without paying.
  • You work on Linux, Docker.
  • You also want access control policies.
Headscale review

Choose OPNsense if

  • You need stateful firewall on pf.
  • You want to start without paying.
  • You work on x86-64 appliances, Virtual machines, Deciso hardware.
  • You also want vpn suite.
OPNsense review

Questions people ask

Is Headscale or OPNsense better?
Neither clearly leads. Headscale starts at Free and OPNsense at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Headscale or OPNsense?
Headscale starts at Free and OPNsense at Free.
Does Headscale or OPNsense run on more platforms?
Headscale runs on Linux, Docker. OPNsense runs on x86-64 appliances, Virtual machines, Deciso hardware.
Can I use Headscale for free?
Both have a free tier, so you can try either at no cost before committing.
What is Headscale best used for?
Headscale is most often used for running a mesh network where no third party may hold the device registry, a homelab or personal fleet where paying per user for a hosted control plane is not worth it, air gapped or restricted environments that cannot reach an external coordination service, keeping the tailscale client experience while removing the vendor from the trust path. Of those, running a mesh network where no third party may hold the device registry and a homelab or personal fleet where paying per user for a hosted control plane is not worth it are not what OPNsense is typically brought in for.
What can Headscale do that OPNsense cannot?
Headscale covers Self hosted control server, Access control policies, User separation, Pre-authentication keys. OPNsense covers Stateful firewall on pf, VPN suite, Suricata IDS and IPS, Full configuration API.

Answered from the vendors’ own pages

Headscale: Is Headscale made by Tailscale?

No. It is an independent community project. Tailscale acknowledges it but does not support it, and the clients it relies on are the vendor ones.

OPNsense: How is it different from pfSense?

It is a 2015 fork with an MIT licence, a fixed weekly release cadence, a complete configuration API and a different interface. Feature coverage is comparable; the release process and API are the real differences.

Headscale: What do I lose compared with the hosted service?

The admin console, the vendor relay network unless you use the public DERP servers, and hosted only features such as Funnel and app connectors.

OPNsense: Do I need the Business Edition?

Only if you want commercial support or a slower, stabilised update stream. No features are withheld from the community edition.

Headscale: Can I still use the public relay servers?

Yes, the default configuration can use them, though many self hosters run their own DERP to remove that dependency.

OPNsense: Can it handle a gigabit internet connection?

Plain firewalling on modest current hardware, comfortably. With Suricata inspection enabled, expect to need a considerably stronger CPU.

Headscale: Is it suitable for a company network?

For a technical team, yes. There is no vendor to escalate to, so it needs someone on staff who is willing to own the control server.

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