The best open source alternative to 2FA Authenticator (2FAS) is Aegis Authenticator. If that doesn't suit you, our users have ranked more than 50 alternatives to 2FA Authenticator (2FAS) and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to 2FA Authenticator (2FAS) are Ente Auth, Proton Authenticator, Bitwarden Authenticator and andOTP.
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.
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.
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.
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.
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.
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.
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 2FA Authenticator (2FAS).
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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