📡Free tool
Test your browser for a WebRTC IP leak
WebRTC can reveal your real public IP even when a VPN or proxy is active. This test runs in your browser and asks STUN servers what IP they see.
Press the button to check your browser for WebRTC leaks.
The test only queries public STUN servers (Cloudflare, Google). Nothing is stored.
Frequently asked questions
What is a WebRTC leak?
WebRTC is the browser technology behind calls in the browser. To connect two people directly it asks the system for your real addresses — and a site can read them even when a VPN is on. That's the leak.
How do I know if my browser leaks?
This page asks the browser the same way a site would and shows what came back. If an address here differs from the one your VPN shows, the browser is revealing your real connection.
How do I stop a WebRTC leak?
Use a client that closes it, or disable WebRTC in the browser if you don't make calls in it. Extensions that only mask the address help less: the request still leaves.
Updated: 2026-08-17
Other tools
Check my IP
See what websites know about you.
Email breach check
Find out if your address was leaked.
Password checker
See how strong your password is.
Password generator
Create a strong password in a second.
What your browser reveals
See what sites detect without a VPN.
Speed test
Measure your connection speed.
Self-destructing note
Encrypted note that burns after being read.