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




The best alternative to Microsoft Authenticator is Aegis Authenticator, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Microsoft Authenticator and 14 are so hopefully you can find a suitable replacement. Other interesting alternatives to Microsoft Authenticator are YubiKey, Nitrokey, Tofu Authenticator and Keysmith.
Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens for your online services.




The multi-protocol security key offers the highest assurance, protecting devices with passwordless workflows and strong 2FA against phishing. It plugs into computers, tablets, and mobile devices, integrates PIN or biometric for identity verification, and reduces helpdesk costs.



Provides robust USB-based encryption, digital signing, and secure login with hardware-level secret key storage, user-defined PIN, tamper-proof smart card, open source design, email and data encryption compatibility, virus protection, and multi-platform support.


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.




Keysmith is a token generator for your two-factor authentication (2FA) logins. It supports time and hash-based one-time passwords (TOTP/HOTP).

2FAuth is a web based self-hosted alternative to One Time Passcode (OTP) generators like Google Authenticator, designed for both mobile and desktop.

Calculates time- and counter-based one-time passwords on iOS devices, supports QR code import, iPad interface, Notification Center widget, encrypted iCloud sync, Safari extension, Touch ID and password protection, no ads, and does not collect personal data.








Rublon protects workforce access to networks, servers and applications via easy-to-use multi-factor authentication. Enable MFA for cloud apps, VPNs, servers, workstations, internal as well as on-premise apps. Comply with data protection regulations.

QuickOTP is a privacy-first authenticator app built exclusively for macOS. Whether you're securing personal logins or professional tools, QuickOTP offers a fast, stable, and secure way to manage your one-time passwords across all your accounts.




Invantive Authenticator is a two-step verification solution for use with TOTP-protected websites and products such as Exact Online. Made in Holland by a partner of Exact, awarded accountancy app partner of the year 2017.




Download TU Latch, a second factor authentication (2FA) and authorisation (2FAuth) app that provides additional protection for your digital services with authorisation controls, TOTP access control and web browsing security from your computer.



