2FA Authenticator (2FAS) is described as '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*' and is a Authenticator in the security & privacy category. There are more than 50 alternatives to 2FA Authenticator (2FAS) for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Mac apps. The best 2FA Authenticator (2FAS) alternative is Aegis Authenticator, which is both free and Open Source. Other great apps like 2FA Authenticator (2FAS) are Ente Auth, Proton Authenticator, Bitwarden Authenticator and Authy.
Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens for your online services.
Aegis Authenticator is the most popular Android alternative to 2FA Authenticator (2FAS).
Aegis Authenticator is the most popular Open Source & free alternative to 2FA Authenticator (2FAS).
Ente's Authenticator app helps you generate and store 2 step verification (2FA) tokens on your mobile devices.
Ente is the best open source 2fa app/program out there. Its actively developed and is the only 2fa service with i desktop app as well, so if you lose your phone you can also login through other devices
Most users think Ente Auth is a great 2FA Authenticator (2FAS) alternative.
Ente Auth is the most popular Web-based, Windows, Mac, iPhone, Linux, iPad & Android Tablet alternative to 2FA Authenticator (2FAS).
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.
Bitwarden Authenticator generates verification codes for two-factor authentication, ensuring your identity is verified when you log into accounts.
Manage two-factor authentication seamlessly across various platforms with secure cloud backups and offline access. From Gmail to LastPass, enhance security effortlessly. Sync multiple devices securely and protect sensitive data with robust encryption.
Authy is not only proprietary, but they try to lock you in. Unlike the open source options, they don't allow you to export your tokens to use another service if you wish. You have to do all of them manually. A big pain.
Google Authenticator generates 2-Step Verification codes on your phone.
Owned by Google, proprietary, and does nothing the other open-source options don't already do. 2FAS also syncs to google drive if you wish.
It implements Time-based One-time Passwords (TOTP) and HMAC-Based One-Time Passwords (HOTP). Simply scan the QR code and login with the generated 6-digit code.
FreeOTP is a two-factor authentication application for systems utilizing one-time password protocols with support for Android (6 or later) and iOS (11 or later). Tokens can be added easily by scanning a QR-code or by manually entering in the token configuration.
Needed a FOSS alternative to the Google Authenticator app to access my company's corporate G-suite instance. This is a simple app and works like a charm!
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.
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.
YubiKey is the most popular commercial alternative to 2FA Authenticator (2FAS).
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.
Netherlands
EU
United States
Switzerland
Germany
Sweden
Requires a log in, having 2fa on multiple types of devices like the same laptop you are logging into is more secure, developed in a country with strong anti-privacy laws.