2FA Authenticator – Fast & Secure

Generate 2FA codes right in your browser. No phone needed.

ATURES • TOTP Code Generation — RFC 6238 compliant engine supporting SHA-1, SHA-256, and SHA-512 algorithms with 6 or 8 digit codes • QR Code Scanner — Scan QR codes directly from any webpage. Just drag to select the QR code area and the account is added automatically • Manual Entry — Add accounts by typing the secret key with a live code preview to verify before saving • Military-Grade Encryption — All secrets are encrypted at rest using AES-256-GCM with PBKDF2 key derivation (100,000 iterations) • Master Password — Optional password lock adds an extra layer of security to protect all your accounts • One-Click Copy — Click any code to instantly copy it to your clipboard. Clipboard auto-clears after 30 seconds for safety • Smart Search — Quickly find accounts by service name or label as your list grows • Dark and Light Theme — Follows your system preference or set it manually • Backup and Restore — Export and import your encrypted accounts as a JSON backup file • Keyboard Shortcut — Press Ctrl+Shift+A (Cmd+Shift+A on Mac) to open the authenticator instantly HOW TO USE 1. Click the extension icon or press Ctrl+Shift+A 2. Click the + button to add a new account 3. Scan a QR code from the page or enter the secret key manually 4. Your codes appear automatically and refresh every 30 seconds 5. Click any code to copy it to your clipboard PRIVACY AND SECURITY Your security is our top priority. This extension: — Stores all data locally on your device only — Never sends your secrets or codes to any server — Uses the Web Crypto API for all cryptographic operations — Encrypts all stored secrets with AES-256-GCM — Requires zero external dependencies (no third-party libraries) PERFECT FOR — Developers managing multiple service accounts (GitHub, AWS, DigitalOcean) — Security-conscious users who prefer browser-based 2FA over phone apps — Teams who need quick access to authentication codes while working — Anyone tired of switching between phone and computer for 2FA codes This extension is free, open source, and respects your privacy. No accounts, no tracking, no ads.