Browser Privacy Checker

Free

See what sites can silently detect about you: fingerprint, WebRTC IP leak, fonts & more.

Reading your browser signals…

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What is Browser Privacy Checker?

Updated July 25, 2026

Browser Privacy Checker shows what a website can detect about you without asking — user agent, screen, hardware, time zone, fonts, canvas/WebGL fingerprints, and WebRTC local-IP leaks — and hashes them into a single fingerprint. It runs entirely in your browser; nothing is uploaded.

See exactly what any website can silently learn about you the moment you visit — no permissions required. This tool reads back your own browser fingerprint: your user agent, screen and hardware details, time zone, installed-font signature, canvas and WebGL rendering fingerprints, and any local IP addresses exposed through WebRTC (a common VPN leak). It combines everything into a single fingerprint hash so you can see how identifiable your setup is. Nothing is sent to a server — all detection happens locally in your browser, and the results are for your eyes only. Use it to understand your exposure and test whether privacy tools (VPNs, anti-fingerprinting browsers, extensions) are actually working.

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Why choose Browser Privacy Checker?

Browser Privacy Checker provides a comprehensive local analysis of your browser's identifiable attributes, including hardware details, canvas and WebGL fingerprints, and potential WebRTC IP leaks. Because all detection runs entirely within your browser, your data remains completely private and is never uploaded to an external server. This makes it an efficient, free way to audit your current exposure and verify whether privacy extensions, VPNs, or anti-fingerprinting configurations are functioning properly.

Best for

Testing VPN and anti-fingerprinting extension effectiveness
Auditing your browser's unique fingerprint and hardware exposure
Checking for local IP address leaks via WebRTC

Good to know: This tool is designed for passive detection and verification; users requiring deep network-level packet inspection or automated proxy testing may need advanced diagnostic software.

How to Use Browser Privacy Checker

Learn how to instantly check your browser fingerprint and detect any potential privacy leaks without sending data to a server.

1
Open the Browser Privacy Checker tool
Navigate to the Browser Privacy Checker page to begin your security scan. The detection runs entirely in your browser locally.
2
View your browser fingerprint and hardware details
Instantly review your user agent, screen resolution, hardware details, time zone, and installed font signatures. These data points are read back to show what websites can silently learn about you.
3
Check canvas and WebGL rendering fingerprints
Inspect your unique canvas and WebGL rendering fingerprints. These generated hashes reveal how identifiable your specific browser and graphics setup truly is.
4
Detect local IP addresses with WebRTC
Look for any local IP addresses exposed through WebRTC to check for common VPN leaks. This ensures your real network address is not accidentally revealed.
5
Test the effectiveness of your privacy tools
Review your combined fingerprint hash to understand your exposure. Use the results to verify whether your VPNs, anti-fingerprinting browsers, or extensions are actually working.

Estimated time: PT1M

Frequently Asked Questions

What does the Browser Privacy Checker do?

The Browser Privacy Checker reveals what websites can silently detect about you without asking for permissions. It reads your browser fingerprint, including your user agent, hardware details, time zone, installed fonts, canvas and WebGL rendering signatures, and potential local IP leaks via WebRTC.

How do I use the Browser Privacy Checker?

Simply navigate to the tool in your web browser. It runs automatically, immediately analyzing your environment and combining all detected data points into a single unique fingerprint hash so you can evaluate how identifiable your setup is.

Is the Browser Privacy Checker free to use?

Yes, the tool is entirely free to use with no credit cost required. Anonymous users are permitted up to 100 checks, while authenticated users can perform up to 400 checks.

Are my privacy details and fingerprint sent to a server?

No data is ever sent to an external server. All detection and fingerprint generation happen entirely locally inside your browser, ensuring that the results are strictly for your eyes only.

Can this tool help me test my VPN and anti-fingerprinting tools?

Yes, you can use the Browser Privacy Checker to test whether your privacy setups are actually working. Specifically, it exposes local IP addresses through WebRTC, which helps you identify common VPN leaks.

What specific information is included in the browser fingerprint?

The fingerprint aggregates several distinct data points including your user agent string, screen resolution, hardware characteristics, time zone, installed-font signature, and canvas and WebGL rendering fingerprints. These are all synthesized into a single identifiable hash.

Do I need to install any software or grant permissions to use it?

No installation or special permissions are required. The tool operates directly within your current web browser using standard web APIs to read back your browser environment.