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Networking · head to head

OPNsense vs Tailscale

OPNsense logo

OPNsense

Networking

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

From
Free
Rated
-
Full reviewWebsite
Tailscale logo

Tailscale

Networking

Zero-trust mesh VPN built on WireGuard with identity-based access

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 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.; Tailscale requires active configuration and management; cannot be deployed passively like consumer VPNs
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which OPNsense and Tailscale actually diverge.

Attributes where OPNsense and Tailscale differ
AttributeOPNsenseTailscale
Pricing modelOpen source, no licence feefreemium
Platformsx86-64 appliances, Virtual machines, Deciso hardwareLinux, macOS, Windows, iOS, Android, API, Web

Identical on both: starting price (Free), 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 OPNsense

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

Only in Tailscale

Nothing recorded that OPNsense does not also cover.

What people use each for

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

OPNsense

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

Tailscale

  • Remote team access to internal services without VPN concentratorsnot OPNsense
  • Hybrid cloud connectivity across AWS, Azure, GCP, and on-premises networksnot OPNsense
  • CI/CD pipeline access to internal infrastructure (databases, Kubernetes clusters)not OPNsense
  • Zero-trust access to SSH, Kubernetes, and databases without bastion hostsnot OPNsense
  • Mobile and IoT device management in enterprise environmentsnot OPNsense
  • Temporary contractor and third-party access controlnot OPNsense

Where each one falls short

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

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.

Tailscale

  • Requires active configuration and management; cannot be deployed passively like consumer VPNs
  • Device posture policies and JIT access tiers are locked behind Premium subscription (£18/month), raising per-user costs for enterprises
  • Limited support for legacy protocols and non-modern operating systems (Windows 7, older Android versions)
  • Centralised control plane operated by Tailscale (hosted in US); no self-hosted control plane option for air-gapped or sovereign deployments
  • Cannot replace full VPN functionality for accessing legacy IP-based services; only applicable to modern infrastructure

Pricing, plan by plan

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

Tailscale

Free
  • PersonalFree
    • Up to 6 users
    • Unlimited devices per user
    • 1,000 ephemeral resource minutes per month
  • Standard$8/month
    • Unlimited users
    • Unlimited devices
    • 1,000 ephemeral resource minutes per month
  • Premium$18/month
    • Unlimited users and devices
    • 10,000 ephemeral resource minutes per month
    • 300 ACL groups
  • EnterpriseFree
    • Custom pricing
    • Unlimited resources
    • Advanced security features

Which should you pick?

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

Choose Tailscale if

  • You want to start without paying.
  • You work on Linux, macOS, Windows, iOS, Android, API, Web.
Tailscale review

Questions people ask

Is OPNsense or Tailscale better?
Neither clearly leads. OPNsense starts at Free and Tailscale at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OPNsense or Tailscale?
OPNsense starts at Free and Tailscale at Free.
Does OPNsense or Tailscale run on more platforms?
OPNsense runs on x86-64 appliances, Virtual machines, Deciso hardware. Tailscale runs on Linux, macOS, Windows, iOS, Android, API, Web.
Can I use OPNsense for free?
Both have a free tier, so you can try either at no cost before committing.
What is OPNsense best used for?
OPNsense is most often used for replacing a small business firewall appliance whose renewal quote exceeded the cost of the hardware, branch offices where the firewall configuration must be produced by ansible rather than by hand, sites that need wireguard and intrusion prevention on the same box without separate feature licences, a homelab or lab network needing vlan routing, multi-wan and dns filtering on one machine. Of those, replacing a small business firewall appliance whose renewal quote exceeded the cost of the hardware and branch offices where the firewall configuration must be produced by ansible rather than by hand are not what Tailscale is typically brought in for.
What can OPNsense do that Tailscale cannot?
OPNsense covers Stateful firewall on pf, VPN suite, Suricata IDS and IPS, Full configuration API.

Answered from the vendors’ own pages

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.

Tailscale: Is Tailscale free?

Tailscale Personal tier is free forever for up to 6 users. Standard (£8/month per user) adds team features, Premium (£18/month per user) adds security controls, and Enterprise tiers are custom priced.

Source
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.

Tailscale: Does Tailscale route all traffic through a central gateway?

No. Tailscale creates direct encrypted connections between devices using WireGuard. It only proxies traffic when direct peer connections are not possible (some restrictive NAT scenarios). This reduces latency and eliminates VPN gateway bottlenecks.

Source
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.

Tailscale: Can I host Tailscale on-premises?

No. Tailscale provides a hosted control plane only. For fully self-hosted mesh networking, consider WireGuard with manual key management or Netmaker. Tailscale Enterprise can provide custom deployments for specific requirements.

Source
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