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1. fingerprintjs fingerprintjs Public

   The most advanced free and open-source browser fingerprinting library

   TypeScript 26.5k 2.5k

2. BotD BotD Public

   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.

   TypeScript 1.4k 98

3. fingerprintjs-android fingerprintjs-android Public

   Free library for identifying and fingerprinting Android devices. MIT license, no restrictions on usage in production.

   Kotlin 678 111

4. fingerprintjs-ios fingerprintjs-ios Public

   Free iOS library for device fingerprinting. Does not require server APIs to work, fully client-side operation. MIT license, no restrictions on usage in production.

   Swift 132 29

5. react react Public

   Fingerprint Pro Wrapper for React Single Page Applications (SPA)

   TypeScript 69 14

6. fingerprintjs-pro-android fingerprintjs-pro-android Public

   Official Android agent & SDK for 100% accurate device identification, created for the Fingerprint Pro identification API.

   49 17