Free · No sign-up · Nothing personal stored
What does your browser give away?
Websites can recognize you without cookies — from your screen, graphics card, time zone, language and more. Find out how rare your browser is in 30 seconds.
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This is your browser’s fingerprint
We drew this pattern from details your browser shared with this page a moment ago. Come back with the same browser and it will most likely look exactly the same, cookies or not.
| Signal | Your browser | Read with |
|---|---|---|
| System | — | navigator.userAgentData.platform |
| Browser | — | navigator.userAgent |
| Screen | — | screen.width × screen.height · devicePixelRatio |
| Browser time zone | — | Intl.DateTimeFormat().resolvedOptions().timeZone |
| Languages | — | navigator.languages |
| GPU renderer | — | WEBGL_debug_renderer_info |
| CPU cores | — | navigator.hardwareConcurrency |
| Device memory | — | navigator.deviceMemory |
| Canvas hash | — | canvas.toDataURL() |
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All personality types
In 30 seconds, find out how websites see your browser — and how rare you really are.
Take the personality test- No.01 FB·OPE The Open Book Websites can read you like a book.
- No.02 FB·CRO The Crowd Blender Hiding in plain sight.
- No.03 FB·CHA The Chameleon You blend in wherever you appear.
- No.04 FB·LEA The Leaky Spy Great disguise. Shame about the leak.
- No.05 FB·NOI The Noise Maker You scramble the signal.
- No.06 FB·SUS The Suspected Bot Beep boop?
- No.07 FB·UNI The Unicorn One of a kind — and easy to spot.
- No.08 FB·GLO The Globetrotter Your browser and your location speak different languages.
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Tools in the lab
Browser personality test
Get your browser’s personality type, see how rare your setup is and share your card.
OpenFingerprint & IP check
A technical report of everything websites can see, with a consistency score and a WebRTC leak test.
OpenAntidetect browser directory
Prices, free plans and what users report about 55 antidetect browsers, with a link to every source.
IP, DNS and WebRTC check Our sister site · WebTraceCheck
See which IPv4 and IPv6 addresses, DNS resolvers and WebRTC routes your connection exposes, and compare them before and after turning on a VPN or proxy.
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How websites recognize you without cookies
Every browser reveals small details about the device it runs on. Each detail is shared by millions of people, but together they form a combination that can be almost unique — a browser fingerprint.
- 01
Your browser reveals details
Screen size, graphics card, fonts, language, time zone and how your device draws images.
- 02
Details add up to a fingerprint
One detail matches millions of people. Ten details together may match only you.
- 03
Sites recognize you again
Even in a private window, after clearing cookies or switching networks.
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Private by design
No sign-up
Every tool runs instantly in your browser.
Nothing personal stored
We never store your IP address or your fingerprint — only anonymous counts of rounded values such as screen size.
No ad trackers
This site runs no advertising or cross-site tracking scripts.
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Frequently asked questions
What is a browser fingerprint?
It is the combination of details a website can read from your browser without cookies — screen, graphics card, fonts, language, time zone and more. Together they can identify your browser even when you clear cookies or use a private window.
Is it really free?
Yes. All tools are free and need no account. Some pages recommend products through affiliate links, which may earn us a commission. That never changes your results.
Do you store my data?
No personal data. To estimate rarity we add one to anonymous counters for rounded values like “screen 1920×1080” or “time zone Europe/Berlin”. We don’t store your IP address, and nothing can be linked back to you.
How accurate is the rarity estimate?
It is an estimate. We combine 18 signals and judge each one against similar devices, but we still treat the rest as independent, and real fingerprinting scripts measure even more. The estimate improves as more people take the test.
How can I make my browser harder to recognize?
Keep your browser up to date, avoid unusual settings and extensions, use a browser with fingerprinting protection, and make sure your VPN or proxy doesn’t leak your real IP address through WebRTC.
FingerBrowser
How rare is your browser?
It takes 30 seconds, and nothing personal is stored.
Take the personality test