Open Source 2FA Authenticator (2FAS) Alternatives
The best open source alternative to 2FA Authenticator (2FAS) is Aegis Authenticator. If that doesn't suit you, our users have ranked more than 25 alternatives to 2FA Authenticator (2FAS) and 17 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to 2FA Authenticator (2FAS) are andOTP, FreeOTP, Authenticator Extension and Raivo Authenticator.
2FA Authenticator (2FAS) alternatives are mainly Authenticators but may also be Password Managers or Cloud Computing Services. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of 2FA Authenticator (2FAS).Aegis Authenticator
Is this is a good alternative?YesNo29 Aegis Authenticator alternatives- Free • Open Source
- Authenticator
- Android
- F-Droid
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).
Aegis Authenticator Features
andOTP
Is this is a good alternative?YesNo36 andOTP alternatives- Free • Open Source
- Authenticator
- Android
- Android Tablet
- F-Droid
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.
andOTP Features
DiscontinuedUnmaintained, see https://github.com/andOTP/andOTP and developers announcement on XDA https://forum.xda-developers.com/t/app-4-4-open-source-andotp-open-source-two-factor-authentication-for-android.3636993/post-87021655
FreeOTP
Is this is a good alternative?YesNo- Free • Open Source
- Authenticator
36 FreeOTP alternatives- Android
- iPhone
- Android Tablet
- iPad
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.
FreeOTP Features
Comments about FreeOTP as a Alternative to 2FA Authenticator (2FAS)
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!
0Authenticator Extension
Is this is a good alternative?YesNo- Free • Open Source
- Authenticator
38 Authenticator Extension alternatives- Mac
- Windows
- Linux
- Microsoft Edge
- Google Chrome
- Firefox
Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.
Authenticator Extension Features
Raivo Authenticator
Is this is a good alternative?YesNo18 Raivo Authenticator alternatives- Free • Open Source
- Authenticator
- Mac
- iPhone
- iPad
Open the app in one tap, sign in with FaceID and copy your one-time password to your Mac in one tap with handoff. Using a one-time password manager has never been easier!
Raivo Authenticator Features
ente Authenticator
Is this is a good alternative?YesNo- Free • Open Source
13 ente Authenticator alternatives- Mac
- Windows
- Linux
- Android
- iPhone
- Android Tablet
- iPad
ente's Authenticator app helps you generate and store 2 step verification (2FA) tokens on your mobile devices.
ente Authenticator Features
Authenticator Pro
Is this is a good alternative?YesNo- Free • Open Source
- Authenticator
28 Authenticator Pro alternatives- Android
- Android Tablet
- Android Wear
- F-Droid
Authenticator Pro generates Two Factor Authentication (2FA) codes for your online accounts. TOTP, HOTP, mOTP (Mobile-OTP) and Steam are supported. The generated codes are one time tokens that provide an extra layer of security to your online accounts.
Authenticator Pro Features
FreeOTP+ (fork of FreeOTP)
Is this is a good alternative?YesNo26 FreeOTP+ (fork of FreeOTP) alternatives- Free • Open Source
- Authenticator
- Android
- F-Droid
FreeOTP+ is a fork of FreeOTP with an updated user interface and with backup/restore functionality (to external files or via built-in Android backup/restore).
FreeOTP+ (fork of FreeOTP) Features
Nitrokey
Is this is a good alternative?YesNo11 Nitrokey alternatives- Paid • Open Source
- Mac
- Windows
- Linux
Nitrokey is an USB key to enable highly secure encryption and signing of emails and data, as well as login to the Web, networks and computers. Other than ordinary software solutions, the secret keys are always stored securely inside the Nitrokey.
Nitrokey Features
SoloKeys
Is this is a good alternative?YesNo14 SoloKeys alternatives- Paid • Open Source
- Mac
- Windows
- Linux
- Android
Solo is an open source security key, and you can get one at solokeys.com.
SoloKeys Features
OTPClient
Is this is a good alternative?YesNo29 OTPClient alternatives- Free • Open Source
- Authenticator
- Linux
- GNOME
GTK+ application for securely managing TOTP & HOTP tokens. Content is encrypted on disk using AES256-GCM. Master password derived using PBKDF2 with 100k iterations & SHA512 as hash algorithm. Can import encrypted backups from andOTP & Authenticator+.
OTPClient Features
Authenticator
Is this is a good alternative?YesNo38 Authenticator alternatives- Free • Open Source
- Authenticator
- iPhone
Authenticator is a simple, free, and open source two-factor authentication app. It helps keep your online accounts secure by generating unique one-time passwords, which you use in combination with your other passwords to log into supporting websites.
Authenticator Features