Tailscale vs WireGuard vs OpenVPN: Which Is Right for Your Business?

Tailscale, WireGuard, and OpenVPN solve the same problem, secure remote access, but at different levels. WireGuard is a fast modern VPN protocol, OpenVPN is an older but battle-tested protocol, and Tailscale is a complete product built on top of WireGuard that adds identity, access control, and management. For most Australian businesses, the real choice is between a managed mesh like Tailscale and a traditional VPN setup using OpenVPN or raw WireGuard.

Key facts

• WireGuard and OpenVPN are VPN protocols; Tailscale is a full product that uses the WireGuard protocol underneath.
• WireGuard is faster than OpenVPN, roughly double the throughput on the same hardware, and has a far smaller codebase.
• OpenVPN is older and slower but extremely mature, widely supported, and works over TCP port 443, which helps it get through restrictive firewalls.
• Tailscale adds automatic key management, single sign-on, and access-control policies that raw WireGuard and OpenVPN lack.
• Tailscale builds a peer-to-peer mesh, while traditional OpenVPN and WireGuard setups usually route through a central server.
• The practical choice for a business is usually managed mesh (Tailscale) versus self-managed VPN (OpenVPN or raw WireGuard).

What is the difference between a protocol and a product?

WireGuard and OpenVPN are protocols, the underlying method for encrypting and moving traffic, while Tailscale is a product that packages a protocol with everything needed to run it. This is the distinction that clears up most of the confusion. Comparing Tailscale to WireGuard is a bit like comparing a car to an engine: Tailscale uses the WireGuard engine, then builds the identity, access control, key management, and dashboard around it so you can actually drive it. OpenVPN sits in between, it is a protocol, but it also ships with more tooling than raw WireGuard, though still without the identity and mesh features of Tailscale.

WireGuard vs OpenVPN: which protocol is better?

WireGuard is faster, simpler, and easier to audit; OpenVPN is older, slower, but more mature and better at getting through restrictive firewalls. WireGuard runs in the kernel, uses modern cryptography, and delivers roughly twice the throughput of OpenVPN on the same hardware, with connections established almost instantly. Its codebase is around 3,800 lines against OpenVPN's hundreds of thousands, which makes it far easier to verify as secure.

OpenVPN's advantage is maturity and flexibility. It has been around since 2001, is supported almost everywhere, and can run over TCP port 443, which makes its traffic look like ordinary HTTPS and slip through firewalls that block other VPNs. If you need to connect from a heavily locked-down network, OpenVPN sometimes still wins on pure reachability. For most other purposes, WireGuard is the better modern choice.

Where does Tailscale fit in?

Tailscale takes the WireGuard protocol and adds the management layer a business needs: automatic key distribution, identity provider integration, access-control policies, and a mesh network that connects devices directly. With raw WireGuard, you distribute and rotate keys by hand and there is no concept of user identity. With OpenVPN, you run and maintain a server and manage certificates. Tailscale removes both of those burdens. Staff log in with your existing identity provider, devices join the mesh automatically, and access is controlled by policy. For a business, that difference, no server to maintain, clean identity-based offboarding, is usually what matters more than the underlying protocol. We cover Tailscale in depth on our Tailscale for business page.

Which should an Australian business choose?

For most Australian SMEs, a managed mesh like Tailscale is the easiest path to secure remote access, while OpenVPN or raw WireGuard suit businesses with the in-house skills to run and maintain a VPN server. If you want secure access that is quick to deploy, ties cleanly to your Microsoft or Google identity, and does not leave you patching a VPN appliance, Tailscale is usually the sensible answer. If you have a network engineer who is comfortable running and hardening a VPN server, and a reason to keep everything self-hosted, OpenVPN or WireGuard directly can be a good fit. And if your driver is really about replacing a legacy VPN with identity-based access across the board, that is the broader topic of zero trust network access, which is worth understanding before you choose a tool.

Frequently asked questions

Is Tailscale just a wrapper around WireGuard?

Tailscale uses WireGuard for its encrypted connections, but it is much more than a wrapper. It adds a coordination system for automatic key exchange, integration with identity providers for single sign-on, access-control policies, NAT traversal so devices connect directly even behind firewalls, and features like subnet routers and exit nodes. The WireGuard protocol handles the encryption; Tailscale handles everything else.

Is WireGuard or OpenVPN more secure?

Both are considered secure when properly configured, but WireGuard's small, auditable codebase and modern, fixed cryptography give it an edge in reducing the risk of misconfiguration and hidden bugs. OpenVPN is also secure and thoroughly tested, but its flexibility means there are more ways to configure it weakly. For most purposes WireGuard is the safer default.

Can I use WireGuard without Tailscale?

Yes. WireGuard is free, open-source software you can deploy directly. The trade-off is that you manage keys, configuration, and access yourself, which is fine for a few devices but becomes difficult to maintain as the number of users and devices grows. Tailscale exists specifically to remove that management burden.

Does OpenVPN still have a place in 2026?

Yes, though its niche has narrowed. OpenVPN remains useful where you need traffic to pass through very restrictive firewalls by disguising itself as HTTPS, or where existing infrastructure is built around it. For new deployments without those constraints, WireGuard-based options are usually faster and simpler.

Not sure which approach fits your business? We deploy and manage secure remote access for Sydney SMEs and can recommend the right tool for your situation rather than a one-size-fits-all answer. Call us on 1800 367 448.