⚠️Requests 2 sensitive permissions ✅Recently updated
Description
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.
Reviews
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Permissions (13)
Permissions
activeTabℹ Can access the current tab when you click the extension alarmsℹ Can schedule periodic background tasks browsingDataℹ Can delete browsing history and data contentSettingsℹ Can change content settings like JavaScript and cookies per-site contextMenusℹ Can add items to the right-click menu cookiesℹ Can read and modify browser cookies declarativeNetRequestℹ Can block or redirect network requests declarativeNetRequestFeedback notificationsℹ Can show desktop notifications privacyℹ Can change privacy-related browser settings storageℹ Can store data locally in your browser tabsℹ Can see your open tabs and their URLs webRequestℹ Can observe and analyze network traffic
Details
| Version | 1.4.0 |
| Updated | Mar 14, 2026 |
| Size | 393KiB |
| First Seen | Apr 1, 2026 |
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