Tailscale alternatives in 2026: comparison table
A Tailscale alternative is any mesh network that connects your devices without opening ports. The four compared here are Headscale, NetBird, ZeroTier and prialo. The difference that matters is not the tunnel, which is almost always WireGuard, but where the control plane runs and who holds the keys and the metadata of your network.
What Tailscale does and why people look for alternatives
Tailscale builds a mesh network without a gateway on WireGuard: every device keeps its own key pair, and the coordination server, operated by Tailscale Inc., hands out the network map and the addresses. When two machines cannot talk directly, traffic goes through its DERP relays. It works well, which is why alternatives are sought for other reasons: who operates the coordination server, in which country the metadata ends up (device names, public keys, addresses, who connected and when), and whether you can move the network to a server of your own whenever you want.
4 criteria for comparing mesh networks: tunnel, control, keys and NAT
- Tunnel: the protocol that encrypts packets between devices. WireGuard is the de facto standard and its code is public; a proprietary protocol means trusting a single vendor's review.
- Control plane: who hands out addresses, public keys and policies. The vendor can run it on its servers, or you can host it on a machine of your own.
- Keys and metadata: where device names, addresses and the connection log live. The content of the traffic never passes through the control plane; the metadata does.
- NAT traversal: what happens when two machines sit behind carrier CGNAT or a symmetric NAT and cannot open a direct path. A relay is needed, and it is worth knowing whose it is and where it runs.
Tailscale, Headscale, NetBird, ZeroTier and prialo: comparison table
| Tool | Tunnel | Control plane | Who holds keys and metadata |
|---|---|---|---|
| Tailscale | WireGuard | Coordination server run by Tailscale Inc. and its own DERP relays | Tailscale Inc., on its servers |
| Headscale | WireGuard (Tailscale clients) | Open-source reimplementation of the coordination server, self-hosted | You, on your server |
| NetBird | WireGuard | Open-source management server, hosted by NetBird or self-hosted | NetBird or you, depending on deployment |
| ZeroTier | Its own protocol, not WireGuard | Hosted or self-hosted network controllers | ZeroTier or you, depending on deployment |
| prialo | WireGuard | Self-hosted package on Docker Compose, or a service hosted by Sinergia (Barcelona) | You when self-hosted; Sinergia, in Spain, when hosted |
The deciding column is the last one. With Tailscale, and with any vendor's hosted plan, your network's metadata sits with a third party; with Headscale, self-hosted NetBird or prialo's self-hosted package it sits on your server and, if you rent that server in Europe, under the GDPR with no international transfer to justify. None of the five exposes ports on the devices: in all of them each machine dials out to the control plane and negotiates the direct path.
How prialo is self-hosted: three ports and a TLS pin
prialo's self-hosted package is three containers on Docker Compose: coordination server (gRPC and STUN), relay and PostgreSQL, for Linux x86_64 or arm64 with Docker Engine 24 and Compose v2. The firewall opens three ports, 50051/tcp (gRPC), 4430/tcp (relay) and 3478/udp (STUN); the admin API on 8080 is never published and is used over an SSH tunnel. Every node checks the server against the SPKI fingerprint of its TLS key, so no certificate authority is involved: if someone impersonates the server, the node refuses to connect. 2 vCPU and 2 GB of RAM hold hundreds of nodes, because the control plane never sees the traffic; only the relay grows with the bytes that cannot go direct. The full steps are in the guide to the self-hosted package.
sudo PRIALO_AUTH_KEY='<enrolment key>' prialo install \
--server=control.example.com:50051 \
--relay=control.example.com:4430 \
--tls-pin=sha256:<fingerprint>After installing, prialo status must show "Control: tls, pinned" and an address inside 100.64.0.0/10, the shared address space of RFC 6598 that never collides with a home or office LAN.
When to choose prialo and when another Tailscale alternative
- Choose Tailscale if you want polished apps on every platform today and do not mind a third party outside the European Union operating the control plane.
- Choose Headscale if you already use the Tailscale clients, want the server on your own machine and accept that compatibility with each client version is kept up by a community, not the vendor.
- Choose NetBird if you want open source with its own management server and are happy with either its hosted service or running the server yourself.
- Choose ZeroTier if its controller model suits you and you accept a protocol of its own instead of WireGuard.
- Choose prialo if you want WireGuard, the control plane on your own European server or on that of a Spanish company issuing Spanish invoices, subnet routes approved in three steps and pricing per person, not per gigabyte: free for one person with up to 10 devices, and €5 per person per month for teams, excluding VAT. Today the self-hosted package and the command-line client work; the Mac and iPhone apps are in Apple's review queue and Android is in preparation.
Frequently asked questions
Is Headscale the same as self-hosted Tailscale?
Headscale is an open-source reimplementation of Tailscale's coordination server, maintained by a community, used together with the official Tailscale clients. Self-hosting Headscale keeps the control plane on your server, but the client is still Tailscale's and compatibility across versions depends on that community.
What data does the control plane of a mesh network see?
The control plane of a mesh network sees metadata: device names, public keys, 100.64.x.x addresses and when each machine connected. It does not see the content of the traffic, which travels encrypted with WireGuard between devices; a relay, when needed, forwards packets it cannot decrypt.
Does a self-hosted Tailscale alternative work behind CGNAT?
A self-hosted mesh network works behind CGNAT if it includes its own STUN and relay. In prialo, STUN (3478/udp) helps open a direct path and, when the carrier prevents it, the relay (4430/tcp) on your server forwards the encrypted traffic; in that case the gigabytes come out of your bandwidth.
Is prialo certified under NIS2, ENS or the GDPR?
prialo holds no certification under NIS2, Spain's ENS or the GDPR. What it brings to a compliance file is that, self-hosted, device names, keys, addresses, policies and audit records stay on your own server, in the country you choose, and Sinergia does not access that instance.
Would you rather run your own server? Guide to the self-hosted prialo package