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⚙️ Protocol Guide • Updated January 2025

WireGuard vs OpenVPN

The two most important VPN protocols. Here's when to use each.

⚡ Quick Verdict

WireGuard for speed, battery life, and most users. OpenVPN TCP for bypassing firewalls and maximum compatibility.

Side-by-Side Comparison

Feature WireGuard OpenVPN
Speed ⭐ Fastest Moderate
Battery Usage ⭐ Low Higher
Connection Time ⭐ Instant 2-10 seconds
Firewall Bypass Limited ⭐ Excellent (TCP)
Code Size ~4,000 lines ~100,000 lines
Audit Status Auditable Well-audited

When to Use Each

Use WireGuard For:

  • • Daily browsing
  • • Streaming
  • • Mobile devices (battery)
  • • Gaming (low latency)
  • • When speed matters most

Use OpenVPN For:

  • • Restrictive networks/firewalls
  • • Countries with VPN blocks
  • • Maximum compatibility
  • • Router installations
  • • When TCP port 443 needed

VPNs with Both Protocols

NordVPN

NordLynx (WireGuard) + OpenVPN

#1 Pick

NordLynx is their custom WireGuard implementation with added privacy features.

Get NordVPN →

Surfshark

WireGuard + OpenVPN + IKEv2

Unlimited

Full protocol options on all platforms.

Get Surfshark →

Get Both Protocols

NordVPN and Surfshark support both WireGuard and OpenVPN. Switch anytime. 30-day money-back guarantee.