GlassBox
See what your browser is leaking. Fix it.
What it does
Glassbox shows you exactly what your browser hands to every site you visit: canvas and WebGL fingerprints, fonts, timezone, hardware signals, WebRTC IP leaks, and the trackable combination they form. Everything runs in your browser. Nothing is uploaded, stored, or sent anywhere. Built by a security engineer who wanted to see his own fingerprint the way trackers see it, then fix it. Open source, no account, no backend. Open the box, see what's leaking, close the gaps.
See every signal a website can read from your browser, and how identifiable it makes you. Runs entirely in your browser, nothing is sent.
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
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Life & fun · Aug 2026 · toneyalexander.github.io
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