~/ browser-fingerprint
Browser Fingerprint Inspector
Every site you visit can identify your browser without cookies, using the passive signature your device exposes. This tool shows you exactly that signature — computed locally, nothing sent anywhere.
// composite fingerprint
computing…
// identifiability
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/ 100
// signals by impact — badge counts exposed signals
A grey dot or an (masked) tag means your browser does return that value, but it has been spoofed or randomized by anti-fingerprinting (e.g. Firefox RFP, Tor, Brave farbling) — so it can’t be used to identify you and doesn’t count toward the score. A colored dot means the value is real and identifying. Two browsers can show the same value where one is masked and the other isn’t: e.g. Brave randomizes the canvas/audio hash but still reports the real GPU and fonts, exactly like Chrome.
STRONGLY IDENTIFYING0 ▸
MODERATELY IDENTIFYING0 ▸
LOW IMPACT0 ▸
// runtime page integrity
scanning…How to raise your anonymity
// registered-user feature
Personalized, signal-by-signal steps to reduce your fingerprint are a registered-user feature. Sign in to unlock them — Google login and self-registration are supported.
What browser fingerprinting is
A browser fingerprint is a set of attributes your device exposes automatically — user-agent, installed fonts, screen geometry, timezone, GPU model, and the subtle ways your hardware renders graphics. Combined, these signals are often unique enough to single you out among millions of users, without any cookie or login. Ad networks and anti-fraud systems use this to track and correlate sessions across sites.
Why canvas, audio and WebGL matter
Asking the browser to draw the same text or 3D scene, or to render a fixed audio waveform, produces tiny, deterministic differences depending on your GPU, drivers, audio stack and OS font rasterizer. Hashing that output yields a stable identifier — the canvas, audio and WebGL fingerprints — which are among the highest-entropy signals available to a tracker. Your installed fonts add even more: the exact set you have is often close to unique.
How to reduce your fingerprint
Use a mainstream browser with default settings (blending into the crowd beats being
rare-but-hardened), enable anti-fingerprinting protections (Firefox resistFingerprinting,
Brave shields, the Tor Browser), and avoid exotic extensions or fonts that make you stand out.
Paradoxically, heavy customization often makes you easier to track, not harder.