Bitwarden Authenticator App
The free Bitwarden authenticator app is open source and generates time-based codes for multi-factor authentication, adding an extra security layer to protect your digital life.
Available free on iOS and Android.
Understanding two-factor authentication
How two-factor authentication works
When you log in to a protected account, you'll enter your password first, then open your Bitwarden Authenticator app to get a 6-digit code that changes every 30 seconds.
This multi-factor authentication process ensures that even if your password is compromised, they can't access your account without physical access to your device.
Authenticator app vs. SMS two-factor authentication
While SMS-based 2FA is better than no protection, authenticator apps provide superior security:
No network dependency: Codes generate offline
SIM-swap protection: Codes aren't sent via vulnerable SMS
Faster access: Instant code generation without waiting for texts
International reliability: Works anywhere without roaming issues
Why multi-factor authentication matters
Multi-factor authentication (MFA) and two-factor authentication (2FA) provide critical protection beyond passwords alone. If a cyberattack were to occur , malicious actors could not access your account without the time-based verification code generated by our authenticator app.
Unlike SMS-based two-factor authentication, which can be intercepted, app-based authenticators like Bitwarden generate codes locally on your device, making them significantly more secure for protecting your sensitive accounts.
Best-in-class authenticator app security
Enable multi-factor authentication
Strong passwords aren't enough. Use Bitwarden Authenticator to enable multi-factor authentication across all your online accounts and applications. The Bitwarden Authenticator app is open source and provides enterprise-grade security with the transparency and trust that comes from publicly audited code.
Generate two-factor authentication codes instantly
The Bitwarden Authenticator app generates time-based one-time passwords (TOTP) for any service that supports two-factor authentication. These 30-second rotating codes ensure your identity is verified, keeping your sensitive data protected from unauthorized access even if your password is compromised.
Quickly scan a QR code to add a new authentication code
A simple, intuitive design and straightforward interface makes it easy to start incorporating authentication into your digital life.