Vaultline

Lock your browsing session behind a PIN. Chrome stays locked every time it starts, until you enter the right code.

PIN Lock for Chrome Protect your Chrome browsing session with Vaultline, a lightweight PIN-based browser lock designed to keep your Chrome windows protected whenever the browser starts. Vaultline automatically locks Chrome at startup and requires your PIN before you can continue browsing. You can also lock Chrome instantly from the toolbar whenever you need extra privacy. Key Features 1. PIN Protection — Secure Chrome with a 4–8 digit PIN. 2. Startup Lock — Chrome automatically enters a protected state when it starts. 3. Instant Lock — Lock your browsing session manually from the toolbar. 4. Anti-Bypass Protection— Attempts to close or switch away from the lock screen are automatically handled. 5. Secure PIN Storage— Your PIN is never stored directly; Vaultline uses salted PBKDF2-SHA256 hashing. 6. Failed Attempt Protection— Temporary cooldown after multiple incorrect PIN attempts. 7. Settings Dashboard — Manage protection, security, appearance, notifications, privacy, and other extension settings. 8. Lightweight & Local — Core locking functionality works locally inside Chrome. 9. Optional Anonymous Analytics — If configured, anonymous usage and error information can be sent to a self-hosted dashboard. No PIN or browsing content are transmitted. Privacy First Vaultline is designed so that your PIN, PIN hash, cookies, session tokens, and browsing content are not transmitted to the optional analytics system. Whether you're protecting a shared computer, a personal Chrome profile, or simply want another layer of privacy, Vaultline keeps your browsing session behind a PIN until you're ready to unlock it.