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).

2FA Authenticator (2FAS) alternatives page was last updated

2FA Authenticator (2FAS)

Free • Open Source
Authenticator

2FAS Authenticator is a simple and free application for Two Factor Authentication (2FA Authentication) which generates...

More about 2FA Authenticator (2FAS)

Aegis Authenticator
Is this is a good alternative?
Yes
No
Free • Open Source
Authenticator
Android
F-Droid
29 Aegis Authenticator alternatives
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).
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Aegis Authenticator Features
1. Two-factor AuthenticationAegis Authenticator supports two-factor authentication (2FA).
2. Encrypted BackupAegis Authenticator uses encryption algorithms to keep your files safe as well as prevent unauthorized access.
3. Biometric AuthenticationLog in or unlock your device using your fingerprint or face recognition
4. Time-based One-time PasswordAegis Authenticator has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
5. Dark ModeAegis Authenticator supports dark mode for comfortable usage in low light conditions.
6. Ad-freeAegis Authenticator doesn't contain any form of external advertising.
7. Multiple Account supportAegis Authenticator support multiple accounts without the need to logout and login
8. Privacy focusedAegis Authenticator is considered a privacy friendly alternative.
9. Works OfflineAegis Authenticator can be used without the need to connect to the internet.
Multi-Factor Authentication (MFA)
Unlock with fingerprint
Data export/import
Community-based
Import from Steam
Import from Google Reader
Customizable
Lightweight
Cloud Sync
End-to-End Encryption
andOTP
Is this is a good alternative?
Yes
No
Free • Open Source
Authenticator
Android
Android Tablet
F-Droid
36 andOTP alternatives
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.
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andOTP Features
1. Encrypted BackupandOTP uses encryption algorithms to keep your files safe as well as prevent unauthorized access.
2. Dark ModeandOTP supports dark mode for comfortable usage in low light conditions.
3. Time-based One-time PasswordandOTP has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
4. Two-factor AuthenticationandOTP supports two-factor authentication (2FA).
5. Privacy focusedandOTP is considered a privacy friendly alternative.
6. Biometric AuthenticationLog in or unlock your device using your fingerprint or face recognition
Security focused
Unlock pin
Multi-Factor Authentication (MFA)
Unlock with fingerprint
Icon sets
Sort by date
Sorting by tags
Password Generator
Community-based
Discontinued
Unmaintained, 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?
Yes
No
Free • Open Source
Authenticator
Android
iPhone
Android Tablet
iPad
36 FreeOTP alternatives
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.
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FreeOTP Features
1. Two-factor AuthenticationFreeOTP supports two-factor authentication (2FA).
2. Multiple Account supportFreeOTP support multiple accounts without the need to logout and login
3. Ad-freeFreeOTP doesn't contain any form of external advertising.
4. Dark ModeFreeOTP supports dark mode for comfortable usage in low light conditions.
5. Time-based One-time PasswordFreeOTP has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
Community-based
Comments about FreeOTP as a Alternative to 2FA Authenticator (2FAS)
pros, cons and recent comments
Guest
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!
Positive comment•
0
Authenticator Extension
Is this is a good alternative?
Yes
No
Free • Open Source
Authenticator
Mac
Windows
Linux
Microsoft Edge
Google Chrome
Firefox
38 Authenticator Extension alternatives
Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.
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Authenticator Extension Features
1. Two-factor AuthenticationAuthenticator Extension supports two-factor authentication (2FA).
2. Time-based One-time PasswordAuthenticator Extension has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
Browser extension
Multi-Factor Authentication (MFA)
Raivo Authenticator
Is this is a good alternative?
Yes
No
Free • Open Source
Authenticator
Mac
iPhone
iPad
18 Raivo Authenticator alternatives
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!
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Raivo Authenticator Features
1. Two-factor AuthenticationRaivo Authenticator supports two-factor authentication (2FA).
2. Time-based One-time PasswordRaivo Authenticator has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
3. Biometric AuthenticationLog in or unlock your device using your fingerprint or face recognition
Sync with iCloud
Customizable
Multi-Factor Authentication (MFA)
Add a screenshot
ente Authenticator
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
13 ente Authenticator alternatives
ente's Authenticator app helps you generate and store 2 step verification (2FA) tokens on your mobile devices.
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ente Authenticator Features
1. End-to-End Encryptionente Authenticator has E2E Encryption, for entire or parts of the app.
2. Privacy focusedente Authenticator is considered a privacy friendly alternative.
3. Two-factor Authenticationente Authenticator supports two-factor authentication (2FA).
4. Works Offlineente Authenticator can be used without the need to connect to the internet.
5. Encrypted Backupente Authenticator uses encryption algorithms to keep your files safe as well as prevent unauthorized access.
6. Biometric AuthenticationLog in or unlock your device using your fingerprint or face recognition
7. Lightweightente Authenticator consumes less device resources compared to similar apps.
8. Ad-freeente Authenticator doesn't contain any form of external advertising.
9. Dark Modeente Authenticator supports dark mode for comfortable usage in low light conditions.
Multi Device Support
Synchronization
Time-based One-time Password
Cloud Sync
Authenticator Pro
Is this is a good alternative?
Yes
No
Free • Open Source
Authenticator
Android
Android Tablet
Android Wear
F-Droid
28 Authenticator Pro alternatives
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.
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Authenticator Pro Features
1. Time-based One-time PasswordAuthenticator Pro has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
2. Encrypted BackupAuthenticator Pro uses encryption algorithms to keep your files safe as well as prevent unauthorized access.
3. Two-factor AuthenticationAuthenticator Pro supports two-factor authentication (2FA).
4. Dark ModeAuthenticator Pro supports dark mode for comfortable usage in low light conditions.
5. Multiple Account supportAuthenticator Pro support multiple accounts without the need to logout and login
6. Works OfflineAuthenticator Pro can be used without the need to connect to the internet.
7. Ad-freeAuthenticator Pro doesn't contain any form of external advertising.
8. Privacy focusedAuthenticator Pro is considered a privacy friendly alternative.
9. Biometric AuthenticationLog in or unlock your device using your fingerprint or face recognition
Multi-Factor Authentication (MFA)
End-to-End Encryption
Lightweight
FreeOTP+ (fork of FreeOTP)
Is this is a good alternative?
Yes
No
Free • Open Source
Authenticator
Android
F-Droid
26 FreeOTP+ (fork of FreeOTP) alternatives
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).
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FreeOTP+ (fork of FreeOTP) Features
1. Two-factor AuthenticationFreeOTP+ (fork of FreeOTP) supports two-factor authentication (2FA).
2. Time-based One-time PasswordFreeOTP+ (fork of FreeOTP) has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
Multi-Factor Authentication (MFA)
Nitrokey
Is this is a good alternative?
Yes
No
Paid • Open Source
Mac
Windows
Linux
11 Nitrokey alternatives
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.
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Nitrokey Features
1. Two-factor AuthenticationNitrokey supports two-factor authentication (2FA).
2. Time-based One-time PasswordNitrokey has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
3. PGP EncryptionNitrokey supports PGP, an encryption system used for sending encrypted emails and files.
4. OpenPGPNitrokey supports OpenPGP, a standard of PGP encryption that is open-source for public use.
HMAC-Based One-Time Password (HOTP)
Hardware securite module (HSM)
Password safe
S/MIME Support
Add a screenshot
SoloKeys
Is this is a good alternative?
Yes
No
Paid • Open Source
Mac
Windows
Linux
Android
14 SoloKeys alternatives
Solo is an open source security key, and you can get one at solokeys.com.
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SoloKeys Features
1. Two-factor AuthenticationSoloKeys supports two-factor authentication (2FA).
OTPClient
Is this is a good alternative?
Yes
No
Free • Open Source
Authenticator
Linux
GNOME
29 OTPClient alternatives
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+.
Suggest and vote on features
OTPClient Features
1. Two-factor AuthenticationOTPClient supports two-factor authentication (2FA).
2. Time-based One-time PasswordOTPClient has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
3. Multiple Account supportOTPClient support multiple accounts without the need to logout and login
4. Privacy focusedOTPClient is considered a privacy friendly alternative.
5. Dark ModeOTPClient supports dark mode for comfortable usage in low light conditions.
Multi-Factor Authentication (MFA)
Authenticator
Is this is a good alternative?
Yes
No
Free • Open Source
Authenticator
iPhone
38 Authenticator alternatives
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.
Suggest and vote on features
Authenticator Features
1. Two-factor AuthenticationAuthenticator supports two-factor authentication (2FA).
2. Time-based One-time PasswordAuthenticator has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
Configurable Code Display
Multi-Factor Authentication (MFA)