Browser Fingerprint Test
Discover how unique your browser is and what websites can track about you without cookies
What Is Browser Fingerprinting?
Browser fingerprinting is a tracking technique that collects information about your browser configuration and device to create a unique identifier. Unlike cookies, which can be deleted, your fingerprint is generated every time you visit a website - making it a more persistent form of tracking.
Websites combine multiple data points (screen resolution, installed fonts, canvas rendering, etc.) to create a unique "fingerprint" that can identify you across the web, even if you clear your cookies or browse in incognito mode.
How Browser Fingerprinting Works
Canvas Fingerprinting
Different devices render text and graphics slightly differently. By drawing text on an invisible canvas element and analyzing the pixel data, websites can create a unique hash that identifies your specific GPU and browser rendering engine.
WebGL Fingerprinting
WebGL reveals your graphics card vendor and renderer model, which provides hardware-level identification. This is extremely unique as different GPU models produce different rendering outputs.
Font Detection
The specific combination of fonts installed on your system is highly unique. By measuring text rendering differences, websites can detect which fonts you have installed.
Audio Context Fingerprinting
Audio processing varies slightly between devices due to hardware and software differences. By analyzing audio signal processing, websites can add another layer to your fingerprint.
Privacy & Legal Considerations
Who Uses Fingerprinting?
- •Advertisers: Track users across websites for targeted ads
- •Security/Fraud Detection: Identify suspicious login patterns and bot traffic
- •Analytics: Track user behavior and website interactions
- •DRM Systems: Prevent piracy and unauthorized access
GDPR & Legal Status
Under GDPR, browser fingerprinting may require user consent as it can be considered personal data processing. However, enforcement varies by jurisdiction and use case. Legitimate fraud prevention uses are generally permitted.
How to Reduce Your Fingerprint
🌐 Use Privacy-Focused Browsers
- • Tor Browser (best privacy)
- • Brave (built-in fingerprint blocking)
- • Firefox with privacy extensions
🔌 Browser Extensions
- • Privacy Badger (EFF)
- • uBlock Origin
- • CanvasBlocker
⚙️ Browser Settings
- • Disable JavaScript on untrusted sites
- • Block third-party cookies
- • Use private browsing mode
⚠️ Tradeoffs
- • Some websites may break
- • Reduced functionality
- • Slower browsing experience
For Researchers & Journalists
How to Cite This Tool
APA Format:
y4yes. (2025). Browser Fingerprint Test – How Unique Is Your Browser? Retrieved from https://y4yes.com/browser-fingerprintMethodology
This tool uses client-side JavaScript to collect browser characteristics including canvas rendering, WebGL parameters, installed fonts, audio context fingerprinting, and system information. Entropy values are based on research from EFF's Panopticlick study.
Privacy Commitment
No fingerprint data is stored, transmitted, or logged. All calculations happen locally in your browser. This tool is for educational purposes only.