ZeroTier vs strongSwan
A detailed comparison to help you choose between ZeroTier and strongSwan.
Quick Verdict
4.5/5
ZeroTier
31 reviews
4.0/5
strongSwan
319 reviews
ZeroTier is rated higher (4.5 vs 4.0). ZeroTier creates virtual Ethernet networks over the internet. Connect servers, VMs, and devices as if on the same LAN. Free for 25 devices. SDN-based architecture. strongSwan is a modular IPsec VPN suite providing encryption, authentication, and key exchange for secure site-to-site and remote access connections. Designed for Linux and embedded platforms with minimal resource overhead.
ZeroTier Virtual networking — Ethernet over the internet | strongSwan Open-source IPsec VPN implementation for Linux and embedded systems | |
|---|---|---|
| Overview | ||
| Rating | 4.5 (31 reviews)✓ | 4.0 (319 reviews) |
| Pricing model | freemium | free |
| Starting price | Free tier available | Free |
| Best for | Homelab operators and small teams wanting virtual Ethernet networks connecting distributed servers | Infrastructure teams building enterprise VPN gateways, SD-WAN solutions, or encrypted tunnels on Linux servers and embedded devices |
| Tags | ||
| Tags | free tieropen sourceapi access | free tieropen sourceself hostable |
| Visit ZeroTier → | Visit strongSwan → | |
ZeroTier
Pros
- + Free for up to 25 devices
- + Virtual Ethernet — servers appear on same LAN
- + Works through NAT and firewalls
Cons
- - ZeroTier controls the SDN layer — trust required
- - Less control than pure WireGuard
strongSwan
Pros
- + Supports both IKEv1 and IKEv2 with modern cryptographic algorithms
- + Minimal dependencies and lightweight, suitable for embedded systems
- + Extensive certificate and PKI integration capabilities
- + Active development with security audits and regular updates
- + Fully open-source with no licensing restrictions
Cons
- - Steeper configuration learning curve compared to GUI-based VPN tools
- - Requires Linux/Unix environment; no native Windows or macOS client implementation
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