Authenticator

Authenticator はお使いのブラウザーで2段階認証コードを生成します。

Authenticator Pro is a fast, secure, and privacy-first two-factor authentication (2FA) manager for your browser. Generate TOTP and HOTP one-time passcodes for all your accounts — Google, Microsoft, GitHub, AWS, and any service that supports authenticator apps — without ever leaving your browser. WHY AUTHENTICATOR PRO ★ Modern, redesigned interface with dark mode, smooth animations, and a clean layout ★ Scan QR codes directly from your webcam or from any webpage in one click ★ Autofill matched 2FA codes into login forms with a single keyboard shortcut ★ Military-grade AES encryption with Argon2 key derivation to protect your secrets behind a master password ★ Auto-clearing clipboard — copied codes are wiped after 30 seconds so nothing lingers ★ Smart Filter automatically surfaces the right account based on the site you're visiting ★ Full editing: rename issuers/accounts, drag-and-drop reordering, and pin your most-used accounts to the top ★ Import your existing accounts from Google Authenticator, Authy, or any app that exports otpauth:// QR codes ★ Local encrypted backup and export — you control your own data, always KEY FEATURES • TOTP & HOTP code generation (RFC 6238 / RFC 4226 compliant) • Built-in camera QR code scanner — no phone required • One-click QR capture from any open tab • Keyboard shortcuts for scanning (Ctrl+Shift+Y) and autofill (Ctrl+Shift+U) • AES + Argon2 encrypted local storage with optional master password • Light and dark themes • Smart search — press "/" to instantly filter your accounts • Drag-and-drop reordering and account pinning • Import/export accounts as encrypted or plain backup files • Works entirely offline — your 2FA secrets never leave your device PRIVACY BY DESIGN Authenticator Pro stores all of your accounts and secrets locally in your browser. Nothing is sent to any server. Optional encryption with a master password (AES-256 + Argon2) keeps your codes safe even if your device is compromised. OPEN SOURCE Authenticator Pro is based on the open-source Authenticator extension (MIT License), maintained with active development and a modern rebuilt interface. Whether you're a developer managing dozens of accounts, or someone who just wants a fast and secure way to handle two-factor authentication, Authenticator Pro makes 2FA effortless.