FingerprintJSFingerprintJS
FingerprintJS

FingerprintJS

Device intelligence platform for fraud prevention, bot detection, and enhanced customer experiences.

Reddit“ICYMI: FingerprintJS v5.0 is now MIT Licensed. With 25K+ GitHub stars and over 700k weekly downloads, the inte…”
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2019Active251
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About

FingerprintJS provides a device intelligence platform that accurately identifies every web visitor and mobile device, even when anonymous. Their core product, the internet's most accurate visitor identifier, helps businesses stop fraud, detect bots and AI agents, and reduce friction for legitimate users. This platform is trusted by over 6000 companies of all sizes to build safe and seamless products.

Technology stack

detected 2026-06-23
Est. monthly stack spend~$1,770/mo
CDN
Vercel
EmailGoogle Workspace
Hosting
Vercel
Comments
(4)
2 positive2 mixed0 negative
Reddit
r/fingerprintjsu/FingerprintProtectsNov 12, 2025Positive💎

“ICYMI: FingerprintJS v5.0 is now MIT Licensed. With 25K+ GitHub stars and over 700k weekly downloads, the internet’s most popular browser fingerprinting library is now available for everyone to use—FREE of charge—to build safer, smarter, an…”

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Reddit
r/redditu/FingerprintProtectsOct 28, 2025Positive

“fingerprintjs. Identify visitors you can trust. And those you can’t. Over 6,000 companies trust Fingerprint’s highly accurate, real-time device intelligence.”

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Reddit
r/developersIndiau/Downtown_General_276Aug 4, 2025Mixed

“I built fingerprinter-js, a very lightweight browser fingerprinting library with no dependencies. It collects basic browser info and returns a stable hash. Just a simple open-source alternative to FingerprintJS.”

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Reddit
r/javascriptu/Downtown_General_276Aug 2, 2025Mixed

“It's not a full replacement for heavier tools like FingerprintJS, but it's perfect if you're l”

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Frequently asked

What does FingerprintJS do?

FingerprintJS provides a device intelligence platform that accurately identifies every web visitor and mobile device, even when anonymous. Their core product, the internet's most accurate visitor identifier, helps businesses stop fraud, detect bots and AI agents, and reduce friction for legitimate users. This platform is trusted by over 6000 companies of all sizes to build safe and seamless products.

How much funding has FingerprintJS raised?

FingerprintJS has raised a total of $87M in funding. The most recent round on record is Series C.

Where is FingerprintJS headquartered?

FingerprintJS is headquartered in San Francisco, United States.

When was FingerprintJS founded?

FingerprintJS was founded in 2019.

What industry does FingerprintJS operate in?

FingerprintJS operates in Customer Service, AI Agents, Cybersecurity, Fraud Detection, Bot Detection, Device Intelligence.

How many employees does FingerprintJS have?

FingerprintJS has approximately 251 people on record.