Locktab

Lock any tab or entire domain behind a blurred overlay or password. Drag to unlock, decoy screens, tamper detection.

LOCKTAB: STOP PEEPING TABS. Share your laptop without exposing your private tabs. Locktab hides any browser tab behind a blurred overlay or a decoy page — your bank account, your weird DMs, your work-in-progress, whatever it is. Kids, coworkers, roommates, presentation mode: none of them see what's behind the lock. ━━━━━━━━━━━━━━━━━━━━━━━━━ 🔒 FOUR INDEPENDENT CHOICES WHAT YOU LOCK • A single tab on demand • An entire domain (auto-lock every visit) WHEN IT LOCKS • Manually with Alt+L or one click • Every time you visit a domain • When you switch to another tab • Automatically after 1, 5, or 15 idle minutes WHAT IT LOOKS LIKE • Blurred overlay — light, medium, or heavy • Decoy pages — fake Google, Twitter, YouTube, Instagram, weather, Chrome error page, or new tab page • Auto-match: show a Twitter-looking decoy on twitter.com, YouTube decoy on youtube.com, etc. • Or pick one decoy for everything HOW YOU UNLOCK • Drag-to-unlock: pull the lock icon into a circle • Password: SHA-256 hashed, never stored in plaintext ━━━━━━━━━━━━━━━━━━━━━━━━━ 🛡️ TAMPER-EVIDENT BY DESIGN • DevTools keyboard shortcuts blocked while locked (F12, Ctrl+Shift+I, etc.) • Right-click disabled on the overlay • MutationObserver re-injects the overlay if someone tries to delete it via DevTools • Access log of every unlock attempt — successful, failed, or tampered • Install date tracking — catches uninstall/reinstall attempts via Chrome sync • 5-attempt password lockout with 60-second cooldown • Interactive decoy pages that show "Something went wrong" errors when clicked ━━━━━━━━━━━━━━━━━━━━━━━━━ 🎭 DECOY MODE Anyone glancing at your screen sees a broken error page, a fake Google homepage, or an ordinary Twitter feed — not a big "something is hidden here" blur. Triple-click anywhere to reveal the real unlock prompt. Ships with 7 built-in themes and is designed to be extensible — developers can add custom decoys by dropping a file in the decoys/ folder. ━━━━━━━━━━━━━━━━━━━━━━━━━ 🔐 PRIVACY FIRST • Zero data collected • Zero outbound network requests • Zero third-party trackers or analytics • All settings stored locally in your browser • Passwords hashed with SHA-256 before storage • Open and transparent See the privacy policy: https://locktab.app/privacy.html ━━━━━━━━━━━━━━━━━━━━━━━━━ ⚠️ WHAT LOCKTAB IS NOT Locktab is tamper-evident, not tamper-proof. It's effective against casual snooping and keeps your settings visible if someone tries to bypass it — but it is not a replacement for disk encryption, OS-level user accounts, or dedicated security software. ━━━━━━━━━━━━━━━━━━━━━━━━━ PERFECT FOR • Parents sharing a laptop with kids • Coworkers using your machine • Roommates who borrow your laptop • Presentation mode (hide tabs before sharing your screen) • Focus mode (blur a distracting tab you shouldn't be checking) • Quick privacy for anything you don't want someone glancing at ━━━━━━━━━━━━━━━━━━━━━━━━━ Free. Forever. No ads. No premium tier. No BS.