About this browser check

A little clarity about what websites can see.

WhatCanMyBrowserSee helps you understand information websites can detect through browser APIs. It shows browser and device details, permission states, storage capabilities and other signals in plain language.

Browser checks run locally on your device. There is no account, saved scan history or browser fingerprint ID.

What the results mean

A visible detail is not automatically a privacy problem. Websites use many of these capabilities to work properly. Results vary with your browser, device and settings, and some information may be unavailable or intentionally reduced.

Built by A3C Labs Inc. to make everyday technology easier to understand.