What my browser exposes

Audit many of the signals a website can read or combine for fingerprinting: device, display, GPU, Canvas, fonts, permissions, storage, codecs and APIs.

✓Local audit; optional on-demand network test

The main audit runs in the browser. The optional network test runs only when you press its button; the application code does not persist the result in a user database.

Features

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Visible signals

Screen, language, time zone, GPU, Canvas, audio, fonts, permissions, storage, codecs and APIs available to the page.

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No fake score

We do not claim you are unique among millions of users because we do not maintain such a database.

No storage

The audit is calculated when you open the tool.

What browser fingerprinting is

A website can combine multiple technical signals to distinguish browsers. No single signal necessarily identifies you, but the combination can increase uniqueness. This tool shows some of those signals without turning them into a stored identifier.

Frequently asked questions

Does it show my public IP address?

Not in the local audit. If you press “Show network exposure”, an explicit request displays the IP and other network signals available in that request without adding them to a user database.

Do you store my fingerprint?

No. The tool does not create a database of user fingerprints.