Free Online Tools
Browser Privacy & Detection Tools
Test your browser's privacy features, detect installed extensions, and learn how websites track you. All tools run locally in your browser - no data is sent to any server.
Browser Detector
Identify your browser type
Detect whether you're using Brave, Chrome, Firefox, Safari, Edge, or other Chromium-based browsers using JavaScript fingerprinting techniques.
- • Brave-specific navigator.brave API detection
- • User Agent string analysis
- • Engine and platform identification
Brave Features Detector
Test privacy protections
Check if Brave Shields, IPFS support, Brave Wallet, fingerprint protection, and WebRTC leak prevention are active in your browser.
- • Shields ad/tracker blocking test
- • Canvas fingerprint randomization check
- • WebRTC IP leak detection
Extension Detector
Scan for detectable extensions
Discover which browser extensions websites can detect. Scans for ad blockers, password managers, crypto wallets, and developer tools.
- • Web accessible resource probing
- • DOM injection detection
- • Global object fingerprinting
Evercookie Demo
Learn about zombie cookies
Interactive demonstration of how evercookies persist across 17+ browser storage mechanisms. Learn how zombie cookies track you and how Brave protects against them.
- • LocalStorage, IndexedDB, cookies
- • Canvas PNG and ETag techniques
- • HSTS supercookie explanation
Why Browser Privacy Testing Matters
Modern websites use sophisticated techniques to identify and track users across the web. From canvas fingerprinting to extension detection, your browser reveals more about you than you might expect.
These free tools help you understand your browser's privacy posture and test whether privacy features like Brave Shields are working correctly. All detection runs locally in your browser - we never collect or transmit your data.
Whether you're a privacy-conscious user, a web developer testing fingerprinting resistance, or just curious about how tracking works, these tools provide hands-on education about browser privacy.