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Dev tools · June 3, 2021

FingerprintJS

99.5% accurate visitor identification API for anti-fraud

FingerprintJS launched on June 3, 2021 with 5 votes, #1,729 of 3,692 launches that month.

Visit site ↗FingerprintJS alternatives

What it does

FingerprintJS Pro combines browser fingerprinting, IP analysis, cookies and server-side techniques to generate a 99.5% accurate visitorID that can be used to flag fraudulent traffic. Designed for developers to build anti-fraud workflows into their websites.

Does a similar job

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  • FA
    FingerprinterJS – A tiny JavaScript library for browser fingerprintsSep 2025 · github.com · ▲24

    I made FingerprinterJS, a small library with no dependencies that creates browser fingerprints from signals like canvas, WebGL, audio, fonts, userAgent, and screen info. It’s written in TypeScript, lets you enable/disable collectors, add custom data, and includes a simple suspicious-activity score. Would love feedback.

  • JA3.pro2023 · ▲93

    Bypass anti-bot systems by impersonating TLS fingerprint

  • Stytch Fraud & Risk Prevention2024 · stytch.com · ▲273

    Stop bots, fraud, and abuse with industry-leading accuracy

  • DigitalFingerprintJul 2026 · digitalfingerprintjs.com · ▲7

    Persistent visitor identity-fraud prevention & intelligence

  • Checker2025 · ▲124

    Detect fake signups in under 200ms with an easy-to-use API

  • CB
    CreepJS Browser FingerprintingApr 2026 · abrahamjuliot.github.io · ▲5

    Not new but quite cool. Note: https://creepjs.org/ is NOT official the repo is https://github.com/abrahamjuliot/creepjs Anyone knows how fingerprinting works mathematically? what do they use? when the signals may vary even slightly, your final hash should be sufficiently accurate and stable. A simple hash won't do it. Changing IP, missing cookies/session, resizing window, TLS/SSL browser handshake, screen depth, font rendering, MTR, network latency if you want to measure, etc... any signal alone means little but as a whole mathematically what is…

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Source: Product Hunt launch ↗

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