2FA Authenticator

2FA Authenticator with account backup, QR import/export, account counter and autofill support.

2FA Authenticator is a fast, secure, and easy-to-use Two-Factor Authentication (TOTP & HOTP) manager built for Google Chrome (Manifest V3). Designed for effortless daily logins and zero data loss, it combines 1-click webpage autofill, multi-cloud auto-backup, and single-QR batch migration in a clean Light & Dark interface. ★ KEY FEATURES: 1. Automatic Cloud Backup & Reinstall Recovery (Google Account & Chrome Sync) • Never lose your 2FA codes again—even if you uninstall the extension, reset Chrome, or switch to a new computer. • Automatically backs up and restores all your accounts when signed into the same Google Account. • Live Account Counter badge in the top bar shows your total saved accounts at a glance. 2. Dropbox Real-Time Text Backup • Connect your Dropbox account with 1-Click OAuth or an Access Token. • Automatically keeps an up-to-date text backup (/authenticator_backup.txt) synced in your Dropbox cloud. 3. 1-Click Export All Accounts in 1 Single QR Code • Generate a single Master QR Code containing all your 2FA accounts in one click. • Easily transfer all accounts to another device or save a digital QR backup image. • Also supports exporting individual account QR codes and plain-text (.txt) backup files. 4. Universal Import & Smart QR Scanner • Scan QR codes directly from any active webpage, drag-select any QR code region on your screen, or scan via webcam. • Supports both standard otpauth:// QR codes and Google Authenticator batch migration QR codes (otpauth-migration://). • Batch upload saved QR code images (.png, .jpg, .webp), paste otpauth:// links or Base32 keys, or import backup files (.txt, .json, .2fa). 5. Smart 1-Click 2FA Autofill (Alt+Shift+F) • Click the "⚡ Autofill" button on any account card, use the right-click context menu, or press Alt+Shift+F to fill 6-digit OTP codes directly into the active webpage. • Intelligently detects both standard single-input OTP fields and split 6-box verification inputs. • Smart Domain Filter automatically highlights matching accounts for the current website. 6. Built-In Google Server Clock Sync • Eliminates invalid 2FA codes caused by local PC clock drift with 1-click Google time synchronization. 7. Safe Edit Mode & Clean Customization • Dedicated Edit Mode prevents accidental deletions—rename or remove accounts safely with confirmation prompts. • Switch seamlessly between Light and Dark themes and customize UI scaling (90%, 100%, 110%). ⌨ KEYBOARD SHORTCUTS: • Alt+Shift+A : Open 2FA Authenticator popup • Alt+Shift+F : Autofill 2FA code into the active webpage • / : Quick-focus the account search bar 🔒 PRIVACY & SECURITY: Your secret keys remain under your control. Cloud backups only connect directly to your own Google Account or Dropbox storage. No third-party tracking or external analytics servers are used.