Advanced Fingerprinting Library

Generate unique device identifiers using canvas, audio, and hardware entropy. No external dependencies, fully client-side.

🎮 Interactive Playground

Scope

Length

Casing

Canvas Audio WebGL

Chain configuration methods for clean, readable code

new Fingerprint()
  .length(32)
  .casing('uppercase')
  .scope('device')
  .canvas(true)
  .audio(true)
  .generate();

Use predefined scopes for common use cases

Fingerprint.device()
  .length(16)
  .casing('mixed')
  .generate();

Minimal fingerprint for temporary identification

Fingerprint.session()
  .canvas(false)
  .audio(false)
  .generate();

Full async support for modern workflows

await Fingerprint.browser()
  .length(64)
  .casing('lowercase')
  .generateAsync();

One-liner for simple use cases

await Fingerprint.generateAsync({
  length: 32,
  casing: 'uppercase',
  scope: 'device'
});

Inspect individual entropy components

const fp = new Fingerprint()
  .scope('device')
  .collect();
console.log(fp.raw()); // Array of components

Click to see component count

Compare fingerprints to detect changes

const fp1 = new Fingerprint().generate();
const fp2 = new Fingerprint().generate();
const similarity = fp1.compare(fp2); // 0.0 to 1.0