--- title: FingerprintJS Open Source vs. Pro - Comparison PDF description: FingerprintJS Pro takes the foundational aspects of our open source library and introduces server-side identification techniques, deduplication analysis, and machine learning to generate stable and highly accurate visitorIDs for every web visitor. image: https://try.fingerprint.com/hubfs/3.png --- [![FP-Horizontal-OrangeBlack@2x (1)](https://try.fingerprint.com/hs-fs/hubfs/FP-Horizontal-OrangeBlack@2x%20(1).png?width=1600&height=281&name=FP-Horizontal-OrangeBlack@2x%20(1).png "FP-Horizontal-OrangeBlack@2x (1)")](http://fingerprint.com) Free PDF Download # FingerprintJS Open Source vs. Pro In this guide, you’ll learn the differences between our popular github library and our API-based solution: ![check (1)](https://try.fingerprint.com/hs-fs/hubfs/check%20(1).png?width=25&height=25&name=check%20(1).png) **How FingerprintJS Pro expands on our open source technology** ![check (1)](https://try.fingerprint.com/hs-fs/hubfs/check%20(1).png?width=25&height=25&name=check%20(1).png) **Identifier differences in accuracy and stability** ![check (1)](https://try.fingerprint.com/hs-fs/hubfs/check%20(1).png?width=25&height=25&name=check%20(1).png) **A full feature comparison between the two offerings** [![Fingerprint-orange-white-logo](https://try.fingerprint.com/hs-fs/hubfs/FP-Horizontal-OrangeWhite@2x.png?width=286&height=50&name=FP-Horizontal-OrangeWhite@2x.png "Fingerprint-orange-white-logo")](http://fingerprint.com) 1440 W. Taylor St  #735, Chicago, IL 60607, USA marketing[@fingerprint.com](mailto:support@fingerprintjs.com) ###### Products [Device Intelligence](https://fingerprint.com/products/fingerprint-pro/) [Identification](https://fingerprint.com/products/identification/) [Smart Signals](https://fingerprint.com/products/smart-signals/) [Mobile Device Signals](https://fingerprint.com/mobile-app-detection/) [Bot Detection](https://fingerprint.com/products/bot-detection/) ###### General [Technical Demo](https://fingerprintjs.com/demo/) [Pricing](https://fingerprintjs.com/pricing/) [Support](mailto:support@fingerprintjs.com) [Terms of Use](https://dev.fingerprintjs.com/docs/terms-of-service) [Privacy Policy](https://dev.fingerprintjs.com/docs/privacy-policy) [Careers](https://fingerprint.com/careers/) [Login](https://dashboard.fingerprintjs.com/login) [System Status](https://status.fingerprintjs.com/) ###### Use Cases [Payment Fraud](https://fingerprintjs.com/payment-fraud/) [Account Takeover](https://fingerprintjs.com/account-takeover/) [Account Sharing ](https://fingerprint.com/products/account-sharing-prevention/) [New Account Fraud](https://fingerprint.com/new-account-fraud-prevention/) [Returning User Experience](https://fingerprint.com/returning-user-experience/) [SMS Fraud](https://fingerprint.com/sms-fraud/) [Paywall](https://fingerprint.com/paywall/) [![Visit twitter](https://try.fingerprint.com/hubfs/twitter.svg)](https://x.com/FingerprintJs/) [![Visit linkedin](https://try.fingerprint.com/hubfs/linkedin.svg)](https://www.linkedin.com/company/fingerprintjs/) Copyright 2025 © [Fingerprint](https://fingerprint.com/)|