A
ABrowserLeaks vs Cover Your Tracks (EFF)
Pricing, features, platforms and who each one suits — side by side.
B
Choose BrowserLeaks if…
- you're in its core audience: vpn and proxy users, antidetect browser users
C
Choose Cover Your Tracks (EFF) if…
- you want a free plan to start with
- you're in its core audience: privacy-conscious web users, privacy researchers
Side by side
Feature BrowserLeaks Cover Your Tracks (EFF)
Pricing modelPricing unknownFree
Starting price—Free
Free plan
Free trial
API
Open source
PlatformsWebWeb
Companysince 2011Electronic Frontier Foundation
Full feature lists
B BrowserLeaks
- IP address, headers, ISP/ASN and whois lookup
- WebRTC, DNS and IPv6 leak tests
- Canvas, WebGL, WebGPU and font fingerprinting tests
- TLS ClientHello inspection with JA3/JA4 fingerprints
- HTTP/2, QUIC and TCP/IP fingerprinting
- Geolocation API and permissions analysis
- Content filter, Tor and ad blocker detection
- Chrome extension detection and Client Hints test
C Cover Your Tracks (EFF)
- Browser tracking and fingerprinting protection test
- Option to test with a real tracking company
- Overview of your browser's most unique identifying characteristics
- Guide explaining how browser fingerprinting works
- Collects only anonymous data
Their home pages
What each vendor shows first: the pitch, the plans and the sign-up.
BrowserLeaks · browserleaks.com
Cover Your Tracks (EFF) · coveryourtracks.eff.orgStrengths and limitations
BrowserLeaks
- Covers IP, WebRTC, DNS, TLS and many fingerprinting vectors in one place
- Generates JA3/JA4 and HTTP/2 fingerprints
- States it does not store user fingerprints or collect personal data
- Running since 2011
- Some listed tools are experimental, broken or deprecated
- Web-only, with no app or API listed
Cover Your Tracks (EFF)
- Free to use, run by the nonprofit EFF
- Only anonymous data is collected
- Includes an educational guide on fingerprinting
- Diagnoses tracking exposure but does not block trackers itself
More comparisons
Other options to consider
AA
See site
A
Check how unique and identifiable your browser fingerprint is online
Fingerprint & IP checkers
Facts from each vendor's public pages, prices checked Nov 7, 2026. Editorial policy