Fingerprint Detector

Discover what information websites can gather about you through browser fingerprinting techniques. This data never leaves your browser.

Your privacy is respected.

All data shown below is collected entirely in your browser. Nothing is sent to Privacy321 servers. The optional IP lookup is the only outbound request, and it is off by default.

Look up my IP (calls a third-party API)

GDPR notice: If you enable "Look up my IP", your public IP address will be sent to a third-party geolocation service (ipapi.co, with ipwho.is as a fallback) to retrieve country, city, and ISP information. Privacy321 does not log, store, or receive this query. By enabling the toggle you consent to this transfer. ipapi.co privacy · ipwho.is privacy

What is browser fingerprinting?

Why your browser is more identifiable than you might think.

Browser fingerprinting is a technique websites use to identify and track visitors without cookies. By combining dozens of small signals - your screen size, fonts, GPU, timezone, supported APIs, and more - websites can compute a near-unique ID for your device. The "Fingerprint ID" above is exactly that, computed in your browser using the same techniques real trackers use.

Reducing your fingerprint surface: use the same default browser as most users, keep extensions to a minimum, prefer Tor / Brave Strict / Firefox with resistFingerprinting, and disable WebGL / WebRTC / unused APIs when you do not need them.