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FingerprintJS
Forensics & Incident Response
Open‑source client‑side browser fingerprinting library that generates a stable visitor identifier even in incognito mode
TypeScript
·
Latest v5.2.0 · 3mo ago
Security brief →
Features
-
Generates a hashed visitor ID from browser attributes on the client side
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Works consistently across normal and private/incognito browsing sessions
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Available via npm package or CDN for easy integration
v5.2.0
Mixed
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Added userAgentData as a new entropy source and fixed a bug where zooming in Chrome caused the font preferences signal to be altered.
v5.1.0
New feature
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Notable features
- Firefox fingerprint stability in incognito mode
- Usage statistics collection toggle
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TypeScript
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