Open-source password manager using AES-256 and PBKDF2 SHA-256 encryption. Securely store and sync logins across iOS, Android, Windows, and more without service provider access.
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Apps similar to OTP Harbor include Bitwarden, which is open source with a free version. Other options are Aegis Authenticator, Proton Authenticator, Ente Auth and Bitwarden Authenticator. You can choose from more than 10 Authenticators like OTP Harbor for Android, iPad, iPhone, Windows and Mac.
Open-source password manager using AES-256 and PBKDF2 SHA-256 encryption. Securely store and sync logins across iOS, Android, Windows, and more without service provider access.




Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens for your online services.



Protect your accounts with Proton Authenticator, a private and secure cross-device two-factor authentication (2FA) that works offline. Created by Proton, the creators of Proton Mail, Proton VPN, Proton Drive, and Proton Pass.




Generates and stores two-factor authentication tokens with device encryption, offers secure cloud backup, multi-device synchronization, offline mode, and import/export through QR, file, or manual input. Migration and restore tools reduce risk of token loss.



Bitwarden Authenticator generates verification codes for two-factor authentication, ensuring your identity is verified when you log into accounts.



2FAS Authenticator is a simple and free application for Two Factor Authentication (2FA Authentication) which generates Time-based One-time Passwords (TOTP) and PUSH authentication*.



Google Authenticator generates 2-Step Verification codes on your phone.



2fast (acronym for two factor authenticator supporting TOTP) is the first free, open source, two factor authenticator for Windows and Android with the ability to store the sensitive data encrypted at a place of your choice instead of a 3rd party cloud location.


Encrypted Windows app for managing 2FA codes with AEGIS-256 and Argon2id, supporting Windows Hello, portable use, multilingual interface, token import/export, QR code/manual entry, generic TOTP, local storage, and dark mode interface for enhanced security.




2FAS Pass is a next-gen password manager designed with security and privacy at its core, that stores and encrypts your data locally.


