@fingerprintjs/fingerprintjs

What is @fingerprintjs/fingerprintjs?

@fingerprintjs/fingerprintjs is a JavaScript library that provides a way to uniquely identify users based on their browser and device characteristics. It is commonly used for fraud prevention, user authentication, and personalization.

What are @fingerprintjs/fingerprintjs's main functionalities?

Generate a Visitor Identifier

This feature allows you to generate a unique identifier for a visitor based on their browser and device characteristics. The code sample demonstrates how to load the FingerprintJS library, generate a visitor identifier, and log it to the console.

const FingerprintJS = require('@fingerprintjs/fingerprintjs');

FingerprintJS.load().then(fp => {
  fp.get().then(result => {
    const visitorId = result.visitorId;
    console.log(visitorId);
  });
});

Get Detailed Visitor Data

This feature provides detailed information about the visitor's browser and device characteristics. The code sample shows how to access and log the detailed components of the visitor's fingerprint.

const FingerprintJS = require('@fingerprintjs/fingerprintjs');

FingerprintJS.load().then(fp => {
  fp.get().then(result => {
    const components = result.components;
    console.log(components);
  });
});

Other packages similar to @fingerprintjs/fingerprintjs

clientjs

ClientJS is a JavaScript library for generating a client-side fingerprint based on browser and device characteristics. It offers similar functionality to @fingerprintjs/fingerprintjs but may not be as comprehensive in terms of the data it collects and analyzes.

fingerprintjs2

FingerprintJS2 is an older version of the FingerprintJS library. It provides similar functionality for generating unique visitor identifiers but lacks some of the newer features and improvements found in @fingerprintjs/fingerprintjs.

ua-parser-js

UA-Parser-JS is a JavaScript library for parsing user-agent strings to identify browser, engine, OS, CPU, and device type/model. While it does not generate a unique visitor identifier, it provides detailed information about the user's environment, which can be used in conjunction with other libraries for fingerprinting.

README

Work in progress

Version policy

The library doesn't promise same visitor identifier between any versions but tries to keep them same as much as reasonable.

The documented JS API follows Semantic Versioning. Using undocumented features is at you own risk.