About FingerprintJS
FingerprintJS is a browser fingerprinting library that queries browser attributes and computes a hashed visitor identifier from them.
How many people use FingerprintJS
GitHub · npm- #1FingerprintJS29k
- #2
ClientJS2.2k
5.7M npm downloads, last 30 days
#1 of 2 Browser fingerprinting we have counts for (of 5) · bars are GitHub stars across these neighbours; the category leader is FingerprintJS at 29k · as of September 24, 2026
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FingerprintJS#1 of 2 Browser fingerprinting
ClientJS#2 of 2 Browser fingerprinting
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We measure the detected version against FingerprintJS's release history and grade the surrounding stack with a Lighthouse-grade quality audit. Weak or outdated links weigh more - one risky dependency can pull the whole score down.
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