WebRTC Leak Test Online for Free - Secure and Fast

Check if your IP is exposed via WebRTC in the browser.

Runs fully in your browser. No file upload required.Last updated: 2026-03-10

WebRTC Leak Test tool interface

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What It Does

Check if your IP is exposed via WebRTC in the browser.

Nextooly’s WebRTC Leak Test helps you verify whether your VPN or proxy is truly hiding your real IP address. The tool gathers WebRTC ICE candidates directly in your browser and classifies them as host, srflx (STUN), or relay (TURN/VPN) IPs.

It then compares the discovered IPs with your public IP to highlight potential leaks. You can enable extended scans, customize STUN servers, and filter IPv4/IPv6 or candidate types for advanced diagnostics.

Example

Input: The source text, file, or settings you want to work with.

Output: A clean webrtc leak test result ready for the next step.

Best For

People who need to use webrtc leak test quickly without installing software.
QA teams and support staff checking live browser or hardware details.
People troubleshooting meetings, permissions, or browser compatibility.
Anyone who wants a quick diagnostic snapshot without installing utilities.
Teams handling sensitive files or text that should stay on-device.
Not ideal for: locked-down devices or browsers that block the APIs the tool relies on.

Key Features

Runs entirely in your browser for a private, on-device workflow.
Surfaces useful metrics and feedback so you can review results instead of guessing.
No signup or installation required for the core workflow.
Works in modern desktop and mobile browsers.
Turns live browser APIs into a quick diagnostic snapshot.
Helpful for support, QA, and compatibility checks.

Pricing

Plan type: Free
Price: $0
Limits: Results depend on what the current browser and device are willing to expose through web APIs.

Pros

Keeps sensitive input on your device.
Focused enough for quick one-task workflows.
Easy to reuse in the rest of your workflow.

Cons

Advanced automation or team-wide workflows may still need desktop software or APIs.

Alternatives

If WebRTC Leak Test is close but not quite the right fit, these related Nextooly tools cover adjacent device & browser workflows without sending you to another service.

Browser & Device Info

Best if you need to check your browser name, version, OS, device type, screen resolution, and user agent instantly.

What is my IP?

Best if you need to discover local IP candidates exposed by your browser.

DNS Leak Test (Lite)

Best if you need to check your DNS resolver, WebRTC leaks, and VPN privacy status.

FAQ

Does this tool send my IP addresses to any server?

No. All WebRTC candidates are gathered locally inside your browser. Your IP details never leave the page.

What does this test actually check?

It detects whether your browser leaks your real IP address through WebRTC even when you're connected to a VPN.

What are host, srflx, and relay IPs?

Host = local LAN IP, SRFLX = STUN-discovered public IP, Relay = TURN/VPN relayed IP. You can enable/disable each type in Advanced Settings.

Why does the test compare WebRTC IPs with my public IP?

If they match, it means your real IP is exposed and your VPN is not fully protecting WebRTC.

What does Extended Scan do?

It increases ICE gathering time to collect more candidates, improving leak detection accuracy but taking longer.

Can I use a custom STUN server?

Yes. You can enter any STUN server URL to test different network paths.

Why do IPv6 addresses sometimes not appear?

IPv6 must be enabled in the settings and supported by your network and browser.

Last Updated

2026-03-10

Related Resources

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Related category

Device & Browser

Related comparison/alternatives article

Tool alternatives hub

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What It Does

Check if your IP is exposed via WebRTC in the browser.

Example

Input: The source text, file, or settings you want to work with.

Output: A clean webrtc leak test result ready for the next step.

Best For

People who need to use webrtc leak test quickly without installing software.

QA teams and support staff checking live browser or hardware details.

People troubleshooting meetings, permissions, or browser compatibility.

Anyone who wants a quick diagnostic snapshot without installing utilities.

Teams handling sensitive files or text that should stay on-device.

Not ideal for: locked-down devices or browsers that block the APIs the tool relies on.

Key Features

Runs entirely in your browser for a private, on-device workflow.

Surfaces useful metrics and feedback so you can review results instead of guessing.

No signup or installation required for the core workflow.

Works in modern desktop and mobile browsers.

Turns live browser APIs into a quick diagnostic snapshot.

Helpful for support, QA, and compatibility checks.

Alternatives

If WebRTC Leak Test is close but not quite the right fit, these related Nextooly tools cover adjacent device & browser workflows without sending you to another service.

Browser & Device Info

Best if you need to check your browser name, version, OS, device type, screen resolution, and user agent instantly.

What is my IP?

Best if you need to discover local IP candidates exposed by your browser.

DNS Leak Test (Lite)

Best if you need to check your DNS resolver, WebRTC leaks, and VPN privacy status.

FAQ

Does this tool send my IP addresses to any server?

No. All WebRTC candidates are gathered locally inside your browser. Your IP details never leave the page.

What does this test actually check?

It detects whether your browser leaks your real IP address through WebRTC even when you're connected to a VPN.

What are host, srflx, and relay IPs?

Host = local LAN IP, SRFLX = STUN-discovered public IP, Relay = TURN/VPN relayed IP. You can enable/disable each type in Advanced Settings.

Why does the test compare WebRTC IPs with my public IP?

If they match, it means your real IP is exposed and your VPN is not fully protecting WebRTC.

What does Extended Scan do?

It increases ICE gathering time to collect more candidates, improving leak detection accuracy but taking longer.

Can I use a custom STUN server?

Yes. You can enter any STUN server URL to test different network paths.

Why do IPv6 addresses sometimes not appear?

IPv6 must be enabled in the settings and supported by your network and browser.