Browser Fingerprint Checker
Check what your browser reveals to trackers: canvas, WebGL, and audio fingerprints, fonts, screen, timezone, and entropy score. Runs 100% in your browser.
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What is Browser Fingerprint Checker?
Browser Fingerprint Checker runs the same probes tracking companies use - canvas image hashing, WebGL renderer lookup, offline-audio graph rendering, font detection, and hardware and locale readouts - entirely in your browser, then summarizes how many bits of uniqueness you expose.
Key Benefits
- See your real trackability instead of abstract privacy advice
- All probes run locally - results never touch a server
- Hashed fingerprints show what stays stable across visits
- Compare browsers to pick your most private daily setup
- Fast: the whole analysis completes in a couple of seconds
Common Use Cases
- •Auditing how unique your browser setup is before hardening it
- •Comparing privacy browsers, containers, and anti-fingerprint extensions
- •Teaching teams why incognito alone does not stop tracking
- •Verifying that a privacy extension actually randomizes fingerprints
How to Check Your Browser Fingerprint
- Start the analysis: Click the analyze button - canvas, WebGL, audio, fonts, and hardware probes run locally in seconds.
- Read your probes: Review each fingerprint value; hashes that stay the same across visits are what trackers key on.
- Reduce your entropy: Try a privacy browser or extension and re-run the analysis - fewer unique values mean weaker tracking.
Key Features
- Canvas fingerprint rendered and hashed locally, never uploaded
- WebGL renderer and vendor probe with debug renderer info
- Audio fingerprint from an OfflineAudioContext compressor graph
- Installed-font detection by text-width measurement
- Screen, timezone, languages, CPU cores, and memory readout
- Entropy estimate that quantifies how trackable your setup is
Frequently Asked Questions
What is a browser fingerprint?
It is a profile built from your browser and hardware traits - GPU, fonts, screen, timezone, and rendering quirks. Combined, these traits can identify you without cookies.
Is my fingerprint sent anywhere?
No. Every probe runs locally in your browser, and results are only displayed on the page. This is the key difference from online fingerprinting tests.
Why does my fingerprint stay the same in incognito mode?
Incognito clears cookies but keeps the same hardware, fonts, and GPU. Canvas, WebGL, and audio probes produce nearly identical values either way.
What does the entropy number mean?
It estimates how many bits of identifying information your browser exposes. Around 10-15 bits is already enough to single out one browser in a thousand.