TOTP Authenticator
TOTP Authenticator is a free, open source app for two-factor authentication using one-time passcodes. It works with Google Authenticator and other similar apps to generate secure login codes.
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TOTP Authenticator: Free Two-Factor Auth App
TOTP Authenticator is a free, open source app for two-factor authentication using one-time passcodes. It works with Google Authenticator and other similar apps to generate secure login codes.
What is TOTP Authenticator?
TOTP Authenticator is a free and open source application for generating time-based one-time passcodes for two-factor authentication. It is compatible with Google Authenticator and other TOTP-based authenticator apps.
This app allows you to add accounts secured by two-factor authentication, such as your Google, Facebook, Twitter, or Microsoft accounts. When logging into these services from a new device, you must enter both your password as well as a 6-digit one-time passcode generated by the Authenticator app on your phone.
TOTP Authenticator has a simple and clean user interface to easily manage all your two-factor enabled accounts in one place. It can export and import accounts via QR codes or secret keys. The app is available on Android, iOS, Linux, Windows, and Mac and stores all accounts and secrets securely on the local device.
Overall, TOTP Authenticator is an excellent open source alternative to proprietary authenticator apps like Authy or Duo Mobile for anyone who wants an easy, reliable way to add two-factor authentication to their accounts with the assurance of strong security.
TOTP Authenticator Features
Features
- Generate time-based one-time passwords (TOTP) for two-factor authentication
- Support for common authentication standards like HOTP and TOTP
- Scan QR codes to easily add accounts
- Encrypted local storage of tokens
- Customizable tokens with labels and icons
- Cloud backup and sync across devices
- Dark mode support
- Open source codebase
Pricing
- Free
- Open Source
Pros
Free and open source
Simple and easy to use interface
Secure token storage and encryption
Sync tokens across devices
Works with common 2FA services
Cons
Limited customization options
No support for FIDO U2F or WebAuthn
QR code scanner can be finicky
No browser extension for auto-fill
The Best TOTP Authenticator Alternatives
Top Security & Privacy and Authentication and other similar apps like TOTP Authenticator
Here are some alternatives to TOTP Authenticator:
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Authy
Authy is a two-factor authentication application developed by Twilio that provides enhanced security for logging into online accounts. It works by associating your mobile device with your online accounts so that a second one-time passcode generated by the Authy app is required in addition to your regular account password when...
Google Authenticator
Google Authenticator is a software-based authenticator app developed by Google for multi-factor authentication by generating timed one-time passwords. It can be used to enhance the security of user logins to applications and online accounts by requiring users to provide both their regular account password as well as a 6-digit one-time...
Microsoft Authenticator
Microsoft Authenticator is a free multi-factor authentication app developed by Microsoft that adds an extra layer of account security for personal and work Microsoft accounts. It works by requiring the user to provide both their account password and a verification code generated by the Authenticator app when signing in, preventing...
FreeOTP
FreeOTP is an open source, free two-factor authentication application for Android and iOS devices. It allows users to generate time-based one-time passwords (TOTP) for added login security to websites and other services that support TOTP authentication.Some key features of FreeOTP include:Open source code and free to useSupports secure password generation...
YubiKey
YubiKey is a hardware authentication security key manufactured by Yubico. It is a small USB device designed to protect access to computers, networks, and online services by providing strong two-factor and multi-factor authentication.The YubiKey works by generating one-time passwords known as one-time passcodes (OTPs). When the YubiKey button is pressed,...
2FA Authenticator (2FAS)
2FA Authenticator (2FAS) is a free and open-source two-factor authentication mobile app. It allows users to set up two-factor authentication for their online accounts in order to add an extra layer of security beyond just a password.Some key features of 2FA Authenticator include:Support for common 2FA standards like Time-based One-time...
Aegis Authenticator
Aegis Authenticator is a free and open source two-factor authentication app for Android. It provides enhanced security for your online accounts by requiring a second one-time password in addition to your regular login password when accessing important services.Some of the key features of Aegis Authenticator include:Support for common 2FA methods...
Krypton
Krypton is a free, open-source note taking application developed by KryptCo. It is available on Windows, Mac, Linux, iOS and Android.Some key features of Krypton include:Rich text editing - Supports formatting options like bold, italics, highlighting, bullets, code blocks, etc.Tagging - Organize notes using tags and quickly access notes filtered...
AndOTP
andOTP is a free, open-source two-factor authentication application for Android. It enables users to generate one-time passwords for logins to provide an additional layer of account security beyond just a password.Some of the key features of andOTP include:Support for both time-based algorithms (TOTP) and counter-based algorithms (HOTP)Encrypted backups that allow...
Incognia
Incognia is a fraud prevention and authentication solution designed specifically for mobile applications and transactions. It uses location data from mobile devices along with advanced behavioral modeling and risk scoring algorithms to determine if a mobile transaction is legitimate or potentially fraudulent.Here are some key features of Incognia:Location verification -...
Authenticator Extension
The Authenticator Extension is a free, open source browser extension used for two-factor authentication (2FA) and one-time passwords (OTP). It allows users to manage and generate 2FA/OTP codes for secure logins, without requiring a separate authentication mobile app.The extension supports integration with popular sites and services like Google, Facebook, Github,...
Protectimus
Protectimus is a cross-platform password manager and encryption software used to store logins, passwords, sensitive information, and documents securely. It utilizes AES-256 bit encryption to encrypt user data and ensure it remains confidential and inaccessible without the correct master password.Some key features of Protectimus include:Secure password generator to create strong,...
