Locksy - Tab Locker & Password Protection

Password-protect your tabs with military-grade PBKDF2 encryption. Instant locking, offline security, 100% private.

🎯 WHY YOU NEED LOCKSY? ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Do you work in shared spaces? Need to step away from your computer but have sensitive information open? Worried about someone seeing your personal tabs when you share your screen? Locksy is your solution. Locksy provides enterprise-level tab protection with PBKDF2 key derivation (600,000 iterations) that ensures only YOU can access your locked tabs. Whether it's banking information, confidential work documents, personal messages, or private research - Locksy keeps your tabs secure with military-grade password protection that can't be bypassed. 🔐 LOCKSY vs DEVICE LOCK ? ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ❌ OS/Device Lock (Windows Lock, macOS Lock, etc.) DOESN'T PROTECT: • Screen sharing sessions - Others can see your tabs during meetings/presentations • Quick shoulder surfing - Anyone can glance at your screen in seconds • Brief moments away - Locking/unlocking your whole device is slow and disruptive • Shared family computers - Family members with login access see everything • Remote desktop connections - Authorized users can access all content • Individual privacy needs - You need to lock ENTIRE device for just ONE sensitive tab ✅ LOCKSY PROVIDES INSTANT, SELECTIVE PROTECTION: • Lock ONLY sensitive tabs, keep working on others • Instant protection (1 second vs 5-10 seconds for device lock) • Works DURING screen sharing - Hide specific tabs while presenting • No disruption - Keep music, downloads, background tasks running • Tab-level granular control - Lock banking but keep email accessible • Domain-wide protection - Lock all work tabs, keep personal tabs open • Quick access - Unlock one tab without unlocking everything 💡 REAL-WORLD SCENARIOS WHERE LOCKSY SHINES: • Video calls: Share screen without showing private tabs • Coffee shops: Step away for 30 seconds - lock tabs, not entire laptop • Office desk: Colleague asks to look something up - they can't see your locked tabs • Family PC: Everyone logged in - only YOUR tabs need password • Teaching/Demos: Present on one screen while keeping research tabs locked • Quick coffee breaks: 2-second protection vs full device sleep • Multiple users with access: They can use PC but not YOUR sensitive tabs ✨ KEY FEATURES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛡️ MILITARY-GRADE SECURITY • PBKDF2-SHA256 Key Derivation - 600,000 iterations (OWASP 2023 compliant) • ~120 YEARS to crack 8-character password vs ~7 days with basic hashing • Timing attack protection with constant-time comparison • Advanced rate limiting with exponential backoff (3 free attempts) • 5-minute lockout after 10 failed attempts with live countdown • 256-bit derived keys with unique 128-bit cryptographic salts • Protection against rainbow tables, brute force, and timing attacks • No administrative bypass or backdoor access • XSS prevention with safe DOM methods 🌐 DOMAIN LOCK FEATURE • Lock entire domains with one click - all matching tabs automatically protected • Wildcard subdomain support (*.google.com locks all Google services) • Exact domain matching (github.com locks only GitHub) • Auto-lock new tabs that match locked domain patterns • Customizable unlock preferences per domain • Persistent across browser restarts • Dedicated Domain Lock Manager interface. 🔐 ONE-CLICK TAB LOCKING • Lock any website tab with a single click • Password-protected overlay covers entire page • Unlock only by entering correct master password • Persistent locks survive page refreshes and navigation 🕶️ INCOGNITO MODE SUPPORT • Works seamlessly in private browsing windows • Same master password for normal and incognito tabs • Enable in extension settings with one click ⌨️ KEYBOARD SHORTCUTS • Lock current tab instantly - Alt+Shift+9 (customizable) • Open Domain Lock Manager - Alt+Shift+0 • Lock all tabs in window - Alt+Shift+8 • Automatic safety checks (password, activation status) • Bulk operations with instant feedback • Fully customizable shortcuts in browser settings 🔄 SERVICE WORKER PERSISTENCE • Locked tabs remain protected even after browser sleep • Domain locks automatically restored after inactivity • Automatic state restoration after service worker wake-up • Badge counter persists across sessions 🎨 MODERN, INTUITIVE INTERFACE • Clean gradient-based design with professional Locksy logo • Real-time password strength indicator • Smooth animations and visual feedback • Easy toggle to activate/deactivate extension 🔒 PRIVACY & SECURITY GUARANTEE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ 100% Offline Operation - No external servers or data transmission ✅ Zero Tracking - No analytics, cookies, or user tracking ✅ Local Storage Only - All data stays on your device ✅ Open Source - Transparent code available on GitHub ✅ No Permissions Abuse - Only essential permissions requested ✅ PBKDF2 Protection - 600,000 iterations, OWASP 2023 compliant (v2.0.0) ✅ Rate Limiting - Exponential backoff with 5-min lockout (v2.0.0) ✅ Timing Attack Protection - Constant-time comparison (v2.0.0) ✅ Rainbow Table Protection - Unique salts prevent precomputed attacks ✅ XSS Protection - Secure DOM methods prevent code injection ✅ Brute Force Protection - 120 years crack time for 8-char password (v2.0.0) 🎯 PERFECT FOR ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 👥 Shared Computers - Protect tabs when others use your PC 🏢 Office Environments - Secure sensitive work tabs and entire work domains ☕ Public Spaces - Lock tabs at cafes, libraries, airports 👨‍👩‍👧 Family Computers - Keep personal tabs private 🏦 Banking & Finance - Lock entire banking domain for maximum security 📧 Email & Social Media - Protect all email/social media tabs at once 🔐 Password Managers - Secure your password vault tabs and domains 🎓 Students - Lock school portal domains during shared screen presentations 🚀 HOW TO USE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Individual Tab Lock: 1️⃣ Click the Locksy icon in your browser toolbar 2️⃣ Activate the extension with the toggle switch 3️⃣ Set your master password (8+ characters recommended) 4️⃣ Navigate to any tab you want to protect 5️⃣ Click "🔒 Lock Current Tab" button (or press Alt+Shift+9) 6️⃣ Tab is now secured with password overlay and lock icon 7️⃣ Enter password on the tab to unlock Domain Lock: 1️⃣ Click "🌐 Domain Lock" in the Locksy popup (or press Alt+Shift+0) 2️⃣ Enter domain pattern (e.g., "github.com" or "*.google.com") 3️⃣ Click "Add Domain Lock" 4️⃣ All current and future tabs matching the domain are automatically locked 5️⃣ Manage locked domains in Domain Lock Manager 6️⃣ Choose unlock preference for each domain Keyboard Shortcuts: • Alt+Shift+9 - Lock current tab instantly • Alt+Shift+0 - Open Domain Lock Manager • Alt+Shift+8 - Lock all tabs in current window • Customize at chrome://extensions/shortcuts 🔒 WHAT MAKES LOCKSY DIFFERENT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🆚 Better Than OS/Device Lock - Selective tab protection (lock ONE tab, not entire device) - Instant 1-second locking vs 5-10 seconds for device sleep - Works during screen sharing and video calls - No workflow disruption (keep other apps running) - Perfect for authorized users on shared devices - Quick unlock for specific tabs only 🔐 Enterprise-Grade Security (v2.1.0) - PBKDF2 key derivation with 600,000 iterations - 120 YEARS crack time vs 7 DAYS with basic hashing - Centralized rate limiting (prevents bypass attacks) - Timing attack protection (constant-time comparison) - Advanced exponential backoff with 5-min lockout - Live countdown timers and progressive warnings Power User Features - Pre-configured keyboard shortcuts that work out-of-the-box - Visual lock indicators on tab favicons - Badge counter showing locked tabs count - Bulk operations (lock all tabs with one keystroke) - Fully customizable shortcuts Revolutionary Domain Protection - Lock entire domains with wildcard support - Auto-lock new tabs matching domain patterns - Flexible unlock options (tab-only, all tabs, remove lock) - Persistent domain locks across sessions Privacy Guaranteed - 100% offline operation - No telemetry or external servers - Zero data collection Smart & Reliable - Real-time feedback with live countdown timers - Clear explanations when tabs can't be locked - Auto-recovery after service worker sleep - Smart temporary exemptions for domain locks - Visual updates across all operations 🆕 VERSION 2.1.0 - ENHANCED SECURITY & TRANSPARENCY (LATEST!) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔐 ENHANCED SECURITY • Centralized Rate Limiting - Prevents bypass via multiple popups/tabs • Single shared rate limit state across entire extension • More robust against circumvention attempts • All password entry points now use centralized verification ✨ WHAT'S NEW OVERLAY • Beautiful update notifications after extension updates • Shows version changes and key feature highlights • Direct links to full changelog • Smooth animations and dismissible interface 🔍 TRUST & TRANSPARENCY • Verification guides for users to confirm extension integrity • Three methods to verify: releases, build from source, inspect installation • Network activity monitoring instructions • Offline functionality test procedures • Complete source code comparison guides 🆕 PREVIOUS VERSIONS HIGHLIGHTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🆕 VERSION 2.0.0 - 🔐 ENTERPRISE-GRADE CRYPTOGRAPHY • PBKDF2 Key Derivation - 600,000 iterations (OWASP 2023 standard) • Replaces fast SHA-256 with slow, brute-force resistant KDF • ~120 years to crack vs ~7 days with old implementation • 256-bit keys with unique 128-bit salts • Fully backward compatible with existing passwords 🚫 ADVANCED BRUTE-FORCE PROTECTION • Intelligent rate limiting with 3 free attempts • Exponential backoff delays (2s, 4s, 8s, 16s, 32s, 64s) • 5-minute lockout after 10 failed attempts • Live countdown timers showing exact wait times • Progressive warnings before lockouts • Auto-recovery on successful authentication ⚡ TIMING ATTACK PROTECTION • Constant-time string comparison • Prevents information leakage through timing analysis • Applied to all verification paths Version 1.0.8 - Cross-Browser Compatibility • WebExtension polyfill for seamless operation • XSS Prevention with safe DOM methods • Enhanced cross-browser support Version 1.0.7 - Keyboard Shortcuts & Visual Indicators • Pre-configured keyboard shortcuts (Alt+Shift+9/8/0) • Lock icon on tab favicon for visual identification • Badge counter on extension icon 🌐 LINKS & SUPPORT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🌍 Official Website: https://locksy.dev 📖 Privacy Policy: https://locksy.dev/privacy-policy 🐛 Report Issues: https://github.com/vansh-121/Locksy/issues ⭐ GitHub Repository: https://github.com/vansh-121/Locksy 🎥 Tutorial Video: https://www.youtube.com/watch?v=6uyd4sN5WiA 📧 Contact: vansh.sethi98760@gmail.com ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔒 Security is not a feature, it's a necessity. Locksy - Your Tabs, Your Password, Your Privacy. Made with ❤️ for Privacy & Security | © 2026 Locksy ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⭐ If you find Locksy useful, please leave a 5-star review and share it with others who value their privacy!