WebRTC Leak Test

About this tool

This tool creates a WebRTC peer connection and inspects ICE candidates to determine if your local (private) IP addresses are being leaked. Particularly important for VPN users who want to ensure their real IP is hidden.

Related: Browser Privacy Check What Is My IP
Why WebRTC leaks matter

WebRTC can bypass VPN tunnels by using STUN servers to discover your real network interfaces. Even with a VPN active, websites may see your local IP (e.g., 192.168.x.x or 10.x.x.x), revealing your network configuration.

  • STUN server ICE candidate analysis
  • IPv4 and IPv6 detection
  • Local vs public IP classification
  • mDNS candidate detection
  • Re-runnable on demand

100% free. No signup. No data collected anywhere.