LeakLens is a comprehensive privacy inspector that reveals what data you share with every website you visit — and gives you granular control over each piece. Trackers follow you across the web. Fingerprinting scripts silently identify your browser. Cookies persist long after you leave a site. Security headers go unchecked. LeakLens makes all of this visible — with real-time analysis, actionable scores, and one-click protection tools that work entirely in your browser. ✅ One purpose: help you understand and control the data you share with websites 🧩 Deep analysis: trackers, cookies, fingerprinting, security headers, permissions — all in one view 🔒 Privacy-first: no data collection, no analytics, no external connections Key Features (at a glance)

🔍 Real-Time Privacy Audit — instant security posture score (0–100) and risk grade (A–F) for every website
🛡️ Tracker Blocking — block trackers with explainable rules in Balanced, Strict, or Custom modes
🧹 URL & Redirect Cleaner — automatically strip tracking parameters (UTM, gclid, fbclid, and more)
🔐 Fingerprint Detection — detect Canvas, WebGL, Audio, and WebRTC fingerprinting in real-time
🌐 WebRTC & Network Leak Shield — prevent IP leaks and block requests to private IP ranges
⏱️ Temporary Permission Grants — allow geolocation, camera, or mic temporarily with auto-revoke
🔒 Session Shield — per-tab session isolation with cookie management
📊 Security Headers Analyzer — analyze HSTS, CSP, Permissions-Policy, and more with actionable recommendations
📋 Context Menu — quick actions: inspect, shield, block trackers, clear data, open in isolation
📌 Pin & Drag Overlay — float LeakLens on any page, drag it anywhere
⚙️ Advanced Settings — per-domain rules, editable tracker lists, import/export configuration
🌍 21 Languages — full internationalization

What LeakLens Helps You Do 🔍 Understand Your Privacy Exposure See exactly what's happening on every website you visit.

Instant privacy score (0–100) based on trackers, cookies, fingerprinting, and headers
Risk grade (A–F) at a glance in the toolbar badge
Timeline of all privacy-relevant events per domain
Per-domain breakdown of active trackers, cookies, and fingerprint signals

🛡️ Block Trackers with Transparency Stop tracking scripts — and understand exactly which ones and why.

Three protection modes: Balanced, Strict, or Custom
Explainable blocking — see which rule matched and why each tracker was blocked
Domain-level blocking controls for fine-grained management
Bundled tracker lists — no external connections needed

🔐 Detect & Mitigate Fingerprinting Know when websites try to fingerprint your browser — and fight back.

Detects Canvas, WebGL, Audio, and WebRTC fingerprinting in real-time
Three modes: Detect (monitor), Prompt (ask), or Mitigate (defend)
Per-signal counters with "last seen" timestamps
Content script injection monitors fingerprint API calls

🧹 Clean Tracking Parameters Automatically Remove the invisible tracking data hidden in URLs.

Automatically strips UTM, gclid, fbclid, and 20+ tracking parameters
Editable parameter list — add or remove tracked parameters
Works silently in the background on every navigation

🌐 Prevent Network Leaks Stop your real IP and local network from being exposed.

Controls WebRTC IP handling policy to prevent IP leaks
Local Network Request Guard detects and blocks requests to private IP ranges
TLS & Certificate Inspector shows TLS version, cipher suite, issuer, validity (Firefox)

⏱️ Control Permissions Temporarily Grant sensitive permissions only for as long as you need them.

Grant geolocation, camera, microphone, or notifications temporarily
Options: Allow once, 10 minutes, 1 hour, or Always
Permissions auto-revoke after the timer expires — no manual cleanup needed

📊 Audit Security Headers Understand how well each website protects its visitors.

Analyzes HSTS, CSP, Permissions-Policy, X-Frame-Options, and more
Calculates a Security Posture Score (0–100)
Shows per-header status with actionable recommendations

Designed for Clarity (Not Feature Bloat) LeakLens packs serious privacy analysis into a clean, focused interface.

✨ Elegant popup with tabbed navigation and real-time scores
⚡ Lightweight — minimal performance impact
🧠 Explainable results — every blocked tracker, every risk flag has a reason
📌 Draggable, pinnable overlay — stays on screen while you browse
🔁 Works across SPA navigation without needing reloads
🌍 Available in 21 languages

Privacy & Data LeakLens does not:

collect personal data
track your browsing behavior
run analytics or profiling
contact any external servers

It works entirely locally in your browser. All domain rules, event logs, and settings are stored in chrome.storage.local and never leave your device.

Latest version

Version 1.4.0

Older versions

Version 1.3.0

Version 1.1.0