OTP Authenticator: 2FA App

OTP Authenticator is an offline 2FA authenticator app that generates time-based one-time passwords (TOTP) for two-factor authentication, adding an extra layer of security to every online account you sign in to.

Use this authenticator app to add an account by scanning its QR code or entering the setup key by hand, and it produces the rotating 6- or 8-digit verification codes you need to log in. These are the same two-factor (2FA) and multi-factor authentication (MFA) codes used by Google, GitHub, Microsoft, Facebook, Amazon, and thousands of other services that support authenticator apps.

WHY CHOOSE THIS AUTHENTICATOR
• 100% offline two-factor authentication. Codes are generated on your device, with no account, sign-up, login, or internet connection required.
• Standards-based TOTP (RFC 6238), compatible with any 2FA or MFA service that works with an authenticator app.
• A private, no-tracking alternative to other authenticator and 2FA apps.

KEY FEATURES
• Generate secure TOTP and OTP two-factor authentication codes for unlimited accounts.
• Fast QR-code scanning or manual setup-key entry to add any 2FA account.
• Supports SHA-1, SHA-256, and SHA-512, 6 or 8 digits, and custom time periods.
• App lock with PIN and biometric (fingerprint / face) unlock keeps your verification codes private.
• Clean, simple interface with a clear countdown timer for every one-time password.
• Encrypted on-device storage. Your 2FA secrets stay on your phone and are never uploaded.

PRIVACY FIRST
This OTP authenticator does not collect, track, or share any personal data. Your two-factor authentication secrets and verification codes never leave your device. Everything stays on your phone, completely offline.

Secure your accounts with reliable two-factor authentication. Download OTP Authenticator and turn on 2FA today.