Apps similar to Authenticator Extension include Bitwarden, which is open source with a free version. Other options are Aegis Authenticator, Proton Authenticator, Ente Auth and Bitwarden Authenticator. You're spoiled for choice with Authenticators like Authenticator Extension: we list more than 50 alternatives for Android, iPhone, iPad, Mac and Windows.
HENNGE OTP Generator is a virtual device application for multi-factor authentication (MFA), so-called two-step verification, which generates time-based one-time passwords (OTP).
Japan
Sentinel is an elegant OTP Authenticator app for both iOS and MacOS. It relies only on the Apple's iCloud Keychain to share data across devices.
Privacy-first two-factor authentication for iPhone, iPad, Mac, and Android that creates offline TOTP codes, imports accounts, syncs encrypted backups, provides biometric or PIN protection, organizes entries with search and icons, and highlights weak security setups.
Türkiye
🔐 Personal 2FA - Secure, encrypted TOTP authenticator with multi-format import/export, OpenSSL compatibility, and bilingual support (ES/EN).
Spain
EU
Fast, offline 2FA codes in your browser — TOTP two-factor authentication. Quick import from Google Authenticator.
SecKey provides one time passwords to be used with the two factor authentication of Dropbox, Google, Facebook, GitHub, Proton Mail and many more.
SwedenEU
Two-step verification app with offline code generation, HOTP and TOTP support, biometric login, local auto backup, QR and image import, multi-language interface, account personalization, dark mode, label grouping, and data privacy controls for secure management.
India
With Authomator, you can quickly generate two-factor authentication codes for your favorite services that use two-step verification on your BlackBerry 10 device. Simply scan the QR codes provided by the service, or manually enter the generated code, and you'll easily...
United States
A simple application for multi-factor authentication, written in HTML using jQuery Mobile, jsSHA, LocalStorage and Application Cache. It implements the TOTP (Time-Based One-Time Password) algorithm according to RFC6238 and has been tested to work with Google Authenticator...
One-time password generator for RFC6238-based two-factor authentication that allows seamless transfer of one-time passwords from mobile phone to desktop browser via notification sounds.
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.
SpainEU
Kerveros is a robust two-factor authentication code generator that combines ease of use with enterprise-grade security. It generates time-based one-time passwords (TOTP) for your online accounts while keeping your secrets encrypted and protected.
