BrowserLeaks
Test a browser for privacy leaks, including exposed IP addresses, device information, and fingerprinting risks.
About BrowserLeaks
BrowserLeaks is a suite of browser tests for IP address leaks, device information exposure, and browser fingerprinting. It includes checks for IP address details, WebRTC, DNS and IPv6 leaks, JavaScript-accessible system data, Canvas, WebGL and font fingerprinting, geolocation, TLS settings, and content filters.
Some tools are described as new, experimental, controversial, broken, or deprecated. The site states it does not collect personal data, store fingerprints, or set non-essential cookies, but notes that certain APIs may make minimal third-party requests and analytics may be temporarily active.
Key features
- IP address checks with location, ISP, headers, and whois lookup
- WebRTC leak test for local and public IP addresses
- DNS and IPv6 leak tests
- Canvas fingerprinting test using HTML5 Canvas rendering
- WebGL report with GPU details and browser fingerprint
- TLS client test with cipher suites and JA3/JA4 fingerprint
Best for: People who want to check whether their browser or VPN leaks IP, device, or fingerprinting data.
Good for
- Covers IP, device information, and fingerprinting tests in one place
- Includes VPN-relevant checks such as WebRTC, DNS, and IPv6 leak tests
- States no collection of personal data, fingerprint storage, or non-essential cookies
Watch out for
- Some listed tools are described as experimental, broken, or deprecated
- Certain APIs may make minimal requests to third parties
- Third-party analytics services may be temporarily active
BrowserLeaks at a glance
- Website
- browserleaks.com
- Category
- Privacy & Security › Security Tools
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Security Tools
BrowserLeaks alternatives
Tools and sites you could use instead, ranked by how closely they match.
IPv6 Leak Test checks whether a device has IPv6 connectivity and displays connection information related to privacy.
Check browser fingerprints and run DNS leak, IP, port, and WebRTC tests with BrowserScan.
Test how trackers and fingerprinting systems see your browser with Cover Your Tracks from the EFF.
Test browser fingerprinting characteristics with CreepJS, which displays fingerprint and WebRTC results.
Snyk helps software teams identify and manage security risks in code and dependencies while building AI-enabled applications.
Add proof-of-work verification to websites with mCaptcha, a privacy-focused automated CAPTCHA system.
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BrowserLeaks FAQ
What does BrowserLeaks check?
It tests how websites may uncover IP address, collect device information, and perform browser fingerprinting.
Can WebRTC reveal my real IP address when using a VPN?
The site states the WebRTC API can reveal local and public IP addresses even when using a VPN, proxy, or behind a NAT.
Does BrowserLeaks store my fingerprint or personal data?
The site states it does not collect personal data, store fingerprints, or set non-essential cookies, though certain APIs may make minimal third-party requests and analytics may be temporarily active.
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