The best open source alternative to FreeOTP is KeePass. If that doesn't suit you, our users have ranked more than 50 alternatives to FreeOTP and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to FreeOTP are Aegis Authenticator, Proton Authenticator, Ente Auth and Bitwarden Authenticator.
Free and open source password manager offering secure local storage of passwords in an encrypted database, strong AES and Twofish encryption, master key or key file access, portable version, plugin support, password generation, and optional two-factor authentication.
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*.
A free open-source two factor authentication app for Android. It features encrypted backups, icons, categories and a high level of customisation. It also has a Wear OS companion app.
Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.
Mauth (pronounced Moth) is a Two-Factor Authentication app with support for TOTP and HOTP (coming soon) and compatibility with Google Authenticator.
OVault is a super simple OTP app that lets you view and manage OTPs for all your accounts. Set up OTPs by scanning QR codes with your devices Camera App, or by manually providing the OTP secret to the app.
Tofu generates one-time passwords to help you protect your online accounts. These passwords are used together with your normal password when you sign into services like Google, Facebook, Dropbox, Amazon, and GitHub.
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.
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