fingerprintjs / fingerprintjs

The most advanced free and open-source browser fingerprinting library

fingerprintjs / BotD

Free bot detection library that runs in the browser. Detects automation tools and frameworks. No server required, runs 100% on the client. MIT license, no usage restrictions.

antoinevastel / fpscanner

Self-hosted browser fingerprinting and bot detection with real-world constraints in mind.