Free Browser Tool Lets You Check If Your VPN Is Leaking Your Real IP

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A developer has built a free, browser-based tool called EvoTechTool that tests whether a VPN is leaking a user's real IP address via WebRTC, a technology that powers video calls and peer-to-peer communication. WebRTC can expose a device's true public IP even when a VPN is active, because it fetches network addresses through a separate channel that bypasses the VPN tunnel. The tool uses the browser's RTCPeerConnection API to detect IP addresses disclosed during WebRTC's connection process and compares them against the IP the VPN reports. All processing happens locally in the browser with no data sent to external servers, according to the developer. Beyond WebRTC, the tool also flags other common privacy risks such as DNS leaks, IPv6 exposure, browser fingerprinting, and time zone or language data that can reveal a user's location.

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