TabGuard - Trust-first Tab Manager

Save, restore, and back up your tabs with verification. No silent failures.

Other tab managers say session saved and hope for the best. TabGuard proves it. How verification works: - On save: TabGuard computes a SHA-256 checksum of every tab URL and stores it with the session. - On restore: it recomputes the checksum and compares. - If they do not match, restore is blocked with a clear message instead of opening the wrong tabs. Features: - Verified saves: checksum computed on every save - Verification on restore: data corruption is detected before opening tabs - Restore preview: tab count, window count, estimated RAM before opening - Auto-backup every 30 minutes (20 most recent kept) - One-click JSON export per session - Delete with confirmation What it does not do (yet): - No cloud sync - data lives only in your browser local IndexedDB - No automatic crash recovery - use the 30-minute auto-backup to restore manually - Chrome only - Brave/Edge/Vivaldi likely work but are not officially tested - The popup verified badge compares tab counts; the checksum check happens at restore Pricing: Free. All features, no account, no payment. Privacy: Local IndexedDB only. Zero network requests. No analytics, no tracking, no telemetry. Verify by opening DevTools Network tab and using the extension for 10 minutes.