JS-Fingerprint Tester
See what unique information your browser reveals to websites. Analyze your Canvas, Audio, and Navigator fingerprints used for tracking.
Click the button below to generate your browser fingerprint. We perform this entirely client-side; no data is sent to our servers.
Understand Your Digital Footprint
Every time you visit a website, your browser inadvertently shares details about your device—screen size, battery level, installed fonts, and graphics capabilities. Collected together, these details create a "fingerprint" that is often unique enough to identify you across different websites, even if you clear your cookies or use Incognito mode.
Test Your Scraping Setup
For developers building web scrapers, fingerprinting is the #1 enemy. If you launch a headless browser with default settings, it broadcasts a fingerprint that screams "I am a bot" (e.g., consistent window size, missing fonts). Use this tool to inspect what your automated browser looks like to the outside world and tune it to mimic a real user.
Canvas & WebGL Analysis
One of the most persistent tracking methods is Canvas Fingerprinting. This tool calculates your specific canvas hash by rendering a hidden image. If this hash remains the same across different sessions or VPNs, websites can still link your activities.
Frequently asked questions
Learn about browser ID and anti-bot tracking
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