WebRTC & Browser Privacy Leak Tester
Free ToolDetect if your browser exposes your real public or local IP address via WebRTC STUN requests even while connected to a VPN or proxy.
Instant 0ms
100% Client-Side
WebRTC Privacy Monitor
??? stun.l.google.com:19302
??? stun1.l.google.com:19302
??? stun2.l.google.com:19302
Strictly Client-Side
This diagnostic runs exclusively in your browser via HTML5 WebRTC. Zero IP information is transmitted or stored on any server.
Public WebRTC IPs
Public
No public IP exposed via WebRTC
Local / Private IPs
LAN
No private LAN IPs exposed
How to Prevent WebRTC Leaks
Mozilla Firefox
Type about:config, search media.peerconnection.enabled, and toggle it to false.
Google Chrome
Install extensions like uBlock Origin or WebRTC Control and enable "Prevent WebRTC from leaking local IP".
Brave Browser
Go to Settings -> Privacy and security -> WebRTC IP Handling Policy -> Select Disable Non-Proxied UDP.
Frequently Asked Questions
WebRTC allows browsers to make real-time audio/video calls. In doing so, it queries STUN servers which can reveal your true IP address even behind a VPN.
You can disable WebRTC or enable leak protection in privacy-focused browsers like Brave, or install browser extensions like uBlock Origin or WebRTC Control.
Yes, 100%. The test runs locally inside your browser using standard browser WebRTC APIs and never uploads your IP to external storage.