* [ThumbmarkJS v1.11.0](https://github.com/thumbmarkjs/thumbmarkjs) – Browser fingerprinting JavaScript library designed to generate unique identifiers with high accuracy. * [Recog v3.2.0](https://github.com/rapid7/recog) – Framework for identifying products, services, operating systems, and hardware through fingerprint matching. * [FCaptcha v1.34.0](https://github.com/WebDecoy/FCaptcha) – Detect bots, vision-based AI agents, headless browsers and automation using 40+ behavioral signals plus server-verified SHA-256 proof-of-work. * [fingerprint-suite v2.1.88](https://github.com/apify/fingerprint-suite) – Modular toolkit for generating and injecting realistic browser fingerprints to evade tracking.