CreepJS

CreepJS

Educational, privacy-first browser fingerprinting platform for developers.

Product

  • Checker
  • Documentation
  • IP Risk Checker
  • API Playground

Resources

  • CreepJS 2.0
  • API Reference
  • Browser Fingerprinting Guide
  • Fingerprint Signal Index
  • Privacy Policy

Popular Signals

  • Canvas Fingerprint
  • WebGL Fingerprint
  • WebRTC Fingerprint
  • Anti-Fingerprinting Detection

Connect

© 2026 CreepJS. All rights reserved.

Analyzing your browser...

Collecting fingerprint data and network information

Analyzing 1 unique browser characteristics

Progress0 / 1 (0%)
Currently collecting:

CreepJS tools and references

Start with the live checker, then inspect individual browser fingerprint signals, API docs, and IP risk analysis pages.

Core pages

Fingerprint CheckerTest your browser privacy with a live fingerprint scan, collector coverage, and privacy leakage analysis.IP Risk CheckerCheck IP risk, ASN, geolocation, proxy, VPN, Tor, datacenter, and routing signals through the CreepJS API.Browser Fingerprint SignalsBrowse the full CreepJS library of browser fingerprinting signals, including canvas, WebGL, WebRTC, fonts, storage, and privacy checks.DocumentationRead the CreepJS API, SDK, collector, and integration documentation for privacy-first browser fingerprinting.API PlaygroundGenerate a token, inspect sample payloads, and test CreepJS browser fingerprinting API calls.What Is Browser Fingerprinting?Learn how browser fingerprinting works, which signals are collected, and how privacy tools reduce tracking.

Popular fingerprint signals

Canvas FingerprintCanvas rendering fingerprint based on how the browser draws graphics. Test your browser's unique canvas signature.WebGL FingerprintWebGL GPU information and rendering capabilities. Detect your graphics card and WebGL implementation.WebRTC FingerprintWebRTC capabilities and IP leakage checks. Detect peer connection support and potential network exposure signals.Anti-Fingerprinting DetectionDetection of privacy tools and browser modifications. Identify fingerprint resistance.Navigator InformationBrowser navigator properties and user agent information. Analyze browser capabilities and settings.Font DetectionInstalled system fonts detection. Discover which fonts are available on your system.