Cost / License
- Free
- Open Source
Platforms
- Linux
- Go (Programming Language)
Authenticator Extension is described as 'Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts' and is a Authenticator in the security & privacy category. There are more than 50 alternatives to Authenticator Extension for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Linux apps. The best Authenticator Extension alternative is Aegis Authenticator, which is both free and Open Source. Other great apps like Authenticator Extension are Proton Authenticator, Ente Auth, Bitwarden Authenticator and 2FA Authenticator (2FAS).

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

2FAuth is the most popular Self-Hosted alternative to Authenticator Extension.
Effortlessly share 2FA SMS with your team. This number works with all services, from WhatsApp to ChatGPT, and connects to numerous tools through Zapier or our webhook integration.



Team SMS is the most popular commercial alternative to Authenticator Extension.
Two-factor authentication app for Yandex accounts and also other QR-code based temporary codes for two-factor authentication



LastPass Authenticator offers a unique one-tap password verification experience that no other authenticator app delivers.




Duo Mobile works with Duo Security's two-factor authentication service to make logins more secure. The application generates passcodes for login and can receive push notifications for easy, one-tap authentication.



Hermes offers a straightforward solution for overseeing two-factor authentication accounts (SHA1), providing support for a wide range of platforms, including Gmail, Dropbox, and thousands of other websites.

Secure your Zoho Account with easy-to-use, multi-factor authentication. Because hackers won't give you a second chance.



CryptoPhoto gives you a fast and safe way to log into your favorite participating web sites while enjoying leading-edge protection against phishing, malware attacks, and scamming.



Daito is a web-based 2FA authenticator for TOTP tokens. It enables you to share 2FA tokens with others to simply protecting shared accounts. No phone needed.

Daito Authenticator is the most popular SaaS alternative to Authenticator Extension.
The app for calculating one-time-passwords on iPhone and iPad. OTP Auth can be used with any service that uses one time passwords. This includes services like Dropbox and GMail with two-step-verfification enabled. OTP Auth is QR code enabled.



