Free tool · Runs in your browser

What does your browser reveal about you?

This free browser fingerprint test reads the same signals trackers use (canvas, WebGL, fonts, audio, screen, WebRTC and dozens more), then shows you exactly what websites can read from your browser and whether anything looks spoofed. Everything runs locally; nothing is uploaded.

Reading your browser's fingerprint…
navigator · screen · webgl · canvas · audio · fonts · webrtc
01

What is browser fingerprinting?

Browser fingerprinting combines dozens of small details your browser exposes - screen size, graphics card, fonts, time zone, audio stack and more - into a single identifier for your device. Unlike cookies, it needs nothing stored on your machine, so clearing cookies or opening a private window doesn't reset it.

02

How this test works

The moment this page loads, it reads each signal directly from your browser, hashes them together into the fingerprint above, and runs CreepJS-style checks for signs of spoofing. All of it happens on your device - no signal, hash or IP address is ever sent to a server.

03

How to stop fingerprinting

You can't hide every signal, but you can stop them from tying your accounts together. Donut Browser gives each profile its own consistent, believable fingerprint and proxy, so every identity looks like a different real person instead of one tracked device.

Stay unfingerprintable

One fingerprint per profile, not one for life

Donut Browser is a free, open-source anti-detect browser. Every profile gets its own consistent fingerprint and proxy, so the signals on this page can't link your accounts to each other or back to you.

Questions, answered.

A browser fingerprint is a set of characteristics - your screen, graphics hardware, fonts, language, time zone and more - that together form an identifier for your device. Websites and ad networks use it to recognize you across visits without storing anything on your computer.