How do I check my browser fingerprint?

Open this browser fingerprint test in the browser you want to check. The page runs an automated fingerprinting test that collects canvas, WebGL, font, audio, and screen signals, hashes them into an identifier, and shows you how rare your configuration is. To compare browsers, run the same test in each one — private windows count as separate sessions, but many signals stay the same.

What is a fingerprint checker?

A fingerprint checker (sometimes called an online fingerprint tester or a fingerprinting test) is a tool that collects the same signals a tracker would and tells you how uniquely identifiable your browser is. This page is one such fingerprint checker — it runs entirely in your browser, shows you every signal it collects, and explains which ones contribute most to your score.

Can I hide my browser fingerprint?

You can lower your uniqueness, but perfect hiding is difficult. Tor Browser is the strongest option because it standardises fingerprint values across all users. Brave's fingerprint randomisation and Firefox's privacy.resistFingerprinting flag also help. Avoid installing unusual font sets, browser extensions that inject globals, or custom hardware combinations, because anything out of the ordinary narrows you down.

Browser Fingerprint

$ fp

Signals collected from your browser, hashed locally into a stable identifier. Each signal is annotated with an estimated entropy contribution drawn from public research — useful as a relative signal, not a population statistic.

collecting…

sha256 · …

trackability score

—/100

~0.0 bits of estimated entropy across 0 signals

● low estimated entropy

estimated entropy

collected~0.0 bits

0326496

signals0 collected
high-entropy0 of 0
collected in…
hashsha-256 · client-side

Verdict: collecting signals…

02signals

no signals match this filter

◉ stalker modewhat a tracker can infer from this single visit

profile a tracker just built

◉— · unknown ISPderived from IP intel + UA platform + timezone — visible to every page you load

⌗GPU unknown · cores ·

⏻timezone unknownaccept-language: —

⊞fingerprint hash …stable across cookie wipes and incognito — same browser produces same hash on return

how to blend in (3 quick wins)

①Use a hardened browser (Brave, LibreWolf, Tor)spoofs canvas + audio · normalises font list · cuts ~14 bits

②Match timezone + locale to your VPN exitremoves the timezone-vs-IP mismatch flag trackers rely on

③Set privacy.resistFingerprinting in Firefoxstandardises canvas, WebGL, and audio output to a baseline value

⚐Skip anti-detect extensionsthey add unique markers — trackers fingerprint the extension itself

What is a browser fingerprint?

A browser fingerprint is a near-unique identifier built from the technical details your browser exposes to every site it loads: how the GPU rasterises canvas pixels, which WebGL renderer string the driver returns, the exact set of fonts installed on your system, the audio context output your hardware produces, the screen and viewport dimensions, the time zone, the languages, and dozens of other signals. Combined, these values are entropy-rich enough that trackers can recognise your browser across sites — even when you block cookies and run in private mode.

How this browser fingerprint test works

When you open this page, the fingerprint checker quietly runs the same probes that a real tracker would: it draws to a hidden canvas, queries the WebGL renderer, enumerates installed fonts, measures the audio fingerprint, and collects screen, language, and platform metadata. Every signal is hashed locally and shown alongside its individual contribution to your final uniqueness score. Nothing is uploaded — the entire fingerprinting test runs client-side and the result never leaves your device.

Online fingerprint tester — what your score means

A high uniqueness score means trackers can re-identify your browser across sites without needing cookies. A low score means many other browsers in the wild produce the same fingerprint as yours, so trackers cannot pull you out of the crowd. The ideal browser for privacy returns a value close to the global average — Tor Browser is the strongest at this because it standardises every fingerprint signal across all users. Other privacy-preserving browsers (Brave with its fingerprint randomisation, Firefox with privacy.resistFingerprinting) reduce uniqueness but rarely match Tor.

Free fingerprint checker — no install, no account

This online fingerprint tester is free, runs entirely in your browser, and never asks you to sign up. Open it in any browser you want to evaluate — Chrome, Firefox, Brave, Safari, Tor — and compare the scores side by side. Pair it with our DNS leak test and IP address checker to get a full picture of what each site can see about your connection.

Browser fingerprint test — frequently asked questions

DNS Leak Test

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IP Address Lookup

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HTTP Header Checker

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