FingerprintJS
Fraud Detection

FingerprintJS

The most advanced free and open-source browser fingerprinting library

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FingerprintJS is an open-source, client-side, browser fingerprinting library that queries browser attributes and computes a hashed visitor identifier from them. Unlike cookies and local storage, a fingerprint stays the same in incognito/private mode and even when browser data is purged.

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28,444
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License
MIT
Last commit
29 days ago
TypeScript

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