The Fingerprint device intelligence platform works across web and mobile applications to identify all visitors with industry-leading accuracy — even if they’re anonymous.

Fingerprint is highly accurate device intelligence available for web, iOS, and Android. FingerprintJS is the top browser fingerprinting library on GitHub.

Powered by the most accurate device fingerprinting technology, Fingerprint enables engineering and product teams to prevent fraud, improve user experiences, and better understand their traffic.

Explore an extensive range of use cases supported by Fingerprint, and learn how to successfully implement it for your business with practical guidance and a comprehensive demo.

Fingerprint doesn't scan human fingerprints like biometric systems do. Instead, it creates a unique identifier for each device, called a "Visitor ID," which stays permanently tied to that device.

Fingerprint Pro Playground Analyze your browser with Fingerprint Pro and see all the available signals.

Prevent automated fraud, fake signups, and content scraping with Fingerprint's advanced bot detection. Differentiate between bad bots & real users.

Fingerprint is a device intelligence platform that specializes in browser and mobile device identification. When users visit your site or app, we analyze over 100 data points to provide …

Documentation Learn how to implement, deploy, and use Fingerprint. Quick Start Guide → JavaScript

Combine Smart Signals with the highly accurate Fingerprint visitor ID to empower your authentication. Customize the weight of each Smart Signal through the Suspect Score to …