Privacy Tools
Browser Fingerprint Test
See exactly what data points your browser leaks — and get a uniqueness score showing how easily you can be tracked across the web without cookies.
Your Fingerprint ID
Click Run Test…
Uniqueness score
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/100
Run the test to see your score
Scored using our published methodology (14-signal entropy calculation). View methodology
14
Signals checked
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Scan time
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High exposure
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Entropy
100% client-side · No data stored · Free forever
Signal breakdown
Canvas fingerprint
GPU renderer hash
WebGL renderer
Graphics card identity
Fonts detected
Installed system fonts
Audio context
Sound processing hash
Screen resolution
Display dimensions
CPU threads
Hardware concurrency
Platform
OS architecture
Browser language
Locale setting
Color depth
Display bit depth
Device pixel ratio
Screen scaling factor
Timezone
Local time offset
Browser plugins
Extension count
Device memory
RAM (rounded by browser)
Touch support
Pointer input type
What your fingerprint reveals
You can be tracked without cookies
Advertisers combine these signals into a unique ID that persists even after
you clear cookies, switch browsers, or use
incognito mode.
Your device identity is exposed
Canvas and WebGL hashes are tied to your specific GPU — nearly impossible
to fake without a privacy browser or dedicated extension.
Ad networks use this right now
Google, Meta, and thousands of ad-tech companies use browser fingerprinting
to serve targeted ads — with no cookie banner or consent notice required.
How browser fingerprinting works
1
You visit a site
The site's JavaScript runs silently in the background — no popup, no permission needed from you.
2
Browser leaks signals
Your GPU, fonts, screen size, and dozens of other settings are read through standard browser APIs.
3
A unique hash is built
All signals are combined into a single fingerprint hash that is stable across sessions and devices.
4
You are identified
The hash matches a profile in a tracking database, linking your visit history and behaviour over time.
How to reduce your fingerprint
Use Brave browser
Brave randomizes canvas, WebGL, and audio fingerprints on every site visit, making your fingerprint useless for tracking.
Best protection
Install uBlock Origin
Blocks the tracker scripts that collect fingerprint data before they even run. Works in both Firefox and Chrome.
Strong protection
Firefox + strict mode
Enable "Strict" Enhanced Tracking Protection in Firefox settings. It blocks most fingerprinting scripts by default.
Strong protection
Use Tor browser
All Tor users share the same fingerprint by design — maximum anonymity, but browsing speed is noticeably reduced.
Maximum anonymity
