GlassBox – what the browser reveals, and how identifiable you are
See every signal a website can read from your browser, and how identifiable it makes you. Runs entirely in your browser, nothing is sent.
In plain words
GlassBox is a browser diagnostic tool that displays all signals and data a website can collect from a user's browser to assess how identifiable they are across sessions and devices. The tool runs entirely locally without sending data externally, and allows users to compare fingerprint reports from different browsers or sessions to understand how tracking systems identify the same machine or browser. It is designed for anyone concerned about their digital privacy and browser fingerprinting.
written from the facts on this page · September 2026
From the sources
Paste a JSON report from another browser or session (Copy JSON report → paste here). GlassBox scores each tier and tells you whether it's the same machine , same engine family, or same browser — the way a real cross-browser tracker linksfrom glassbox.codecanary.org
Pricing, as stated on its site
Free — GlassBox is a free, open-source browser fingerprinting diagnostic tool. No pricing information is mentioned; the tool appears to be entirely free with source code available on GitHub.
checked September 2026 · prices change
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