Trackers, cookies, fingerprinting, permissions — revealed and controllable. Real-time privacy audit for every website you visit. Free, open source, and private.
From lightweight monitoring to full lockdown — pick the right mode for your needs.
Light protection, zero breakage.
Blocks known trackers, keeps sites working.
Maximum privacy enforcement.
Aggressive blocking, may break some sites.
Fine-tune every rule per domain.
Full control over your privacy settings.
10 core features designed for transparency and control. No bloat, no tracking — just real privacy tools.
Security posture score (0–100) and risk grade (A–F) for every website. See trackers, cookies, and permissions at a glance.
Block trackers with explainable rules — see exactly which tracker was blocked and why.
Detects Canvas, WebGL, Audio, and WebRTC fingerprinting in real-time. Three modes: Detect, Prompt, or Mitigate.
Automatically strips tracking parameters (UTM, gclid, fbclid, and more). Editable parameter list. Works silently in the background.
Controls WebRTC IP handling policy and detects requests to private IP ranges. Local Network Request Guard included.
Analyzes HSTS, CSP, Permissions-Policy, and more. Calculates a Security Posture Score with actionable recommendations.
Grant geo, camera, mic, or notifications temporarily. Auto-revoke after 10 min, 1 hour, or on close.
Session isolation per tab. Clear cookies, localStorage, and site data per domain with one click.
Event heatmap and filtered event list per domain. Full transparency into every privacy-relevant action on the page.
Right-click anywhere for instant privacy controls — no popup needed.
LeakLens monitors every privacy-relevant signal on every site you visit.
LeakLens speaks your language — from English to Chinese, Arabic to Thai.
No data collection, no analytics, no external connections. All privacy analysis runs locally in your browser.
Zero analytics, zero telemetry, zero personal data. LeakLens does not collect or transmit any information about you.
Domain rules, audit history, tracker data, security headers cache, fingerprint stats — all saved locally in your browser. Nothing leaves your device.
LeakLens only analyzes traffic initiated by the websites you visit — it never generates its own external connections.
ActiveTab and webRequest for real-time analysis, cookies for privacy inspection, tabs for session isolation, storage for settings, contextMenus for quick actions, and alarms for scheduled tasks. Only essential permissions — no scripting or webNavigation requested.
No analytics, advertising, or external services. All tracker databases and blocking rules are bundled within the extension.
Free, open source, and privacy-first. Install in seconds.