Identify your version of FingerprintJS

NPM registry

If you installed FingerprintJS using npm, then your application's package.json will include an entry for either @fingerprintjs/fingerprintjs or @fingerprintjs/fingerprintjs2 along with the exact version that is being used.

"dependencies": {
    "@fingerprintjs/fingerprintjs": "^x.y.z"
}
   

CDN

If your application loads FingerprintJS using CDN, then the path specified in script or import will contain the version of FingerprintJS that is being used.

FingerprintJS v2.x

If the path in the script tag includes /fingerprintjs2@2/ , then your application uses FingerprintJS v2.x.

<script src="https://cdn.jsdelivr.net/npm/fingerprintjs2@2/dist/fingerprint2.min.js"></script>

FingerprintJS v3.x and higher

The path segment /vN/ in script or import statements indicates the version of FingerprintJS that is being used. In the below example, the version used is v4.

const fpPromise = import('https://openfpcdn.io/fingerprintjs/v4')

script.src = 'https://openfpcdn.io/fingerprintjs/v3/iife.min.js';

<script src="https://openfpcdn.io/fingerprintjs/v3/iife.min.js"></script>