LeakLens – Privacy Inspector

About

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

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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

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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

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🛡️ 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

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🔐 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

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🧹 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

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🌐 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)

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⏱️ 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

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📊 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

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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

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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.