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2FAuth is a web based self-hosted alternative to One Time Passcode (OTP) generators like Google Authenticator, designed for both mobile and desktop.
2FAuth's purpose is to simplify how you use and manage your 2FA with a clean and suitable interface, no matter what device you use. In front of your computer without your smartphone and dealing with a code request? No problemo, just open your 2FAuth instance in a browser tab and voilà!
TOTP Authenticator.
A modern and secure Windows app for managing your 2FA authentication codes. It's free, open source, and easy to use. Download it now and get started in minutes.
One-time password input component for React. Accessible. Unstyled. Customizable. Open Source.
Two-Factor Authentication for SSH with PAM Support (pam_duo).
Duo Unix includes a PAM module or alternatively a stand alone executable that can be used to protect programs such as SSH or Sudo.
Duo can be easily added to any Unix system to protect remote (SSH) or local logins with the addition of a simple pam_duo PAM module. It has been tested on Linux (RedHat, Fedora, CentOS, Debian, Ubuntu, Amazon Linux), BSD (FreeBSD, NetBSD, OpenBSD), Solaris, and AIX.
Simple & secure two-factor authentication via mobile & desktop app that's free to users. Authy's 2FA API is by Twilio.
This application is designed to extract TOTP (Time-based One-Time Password) information from Authy by launching Authy in debug mode and using the Chrome DevTools API to communicate with the browser. It then runs a JavaScript script to decrypt and extract the TOTP information, which can be saved to a file or displayed to the user. This can be useful for those who want to migrate their TOTP information from Authy to another service, or simply want to access and view their TOTP information in an easier way.
the open source solution for two factor authentication.
LinOTP accommodates many different OTP algorithms using a modular approach. This includes the OATH standards such as HMAC (RFC 4226) and time-based HMAC. But LinOTP's design makes it easy to create your own tokens with different algorithms, including challenge-response tokens, tokens based on QR codes, and tokens based on push-type messages.
Best VPN Service for Secure Networks. A secure network that just works
Zero config VPN. Installs on any device in minutes, manages firewall rules for you, and works from anywhere.
Authentication server providing two-factor and SSO.
Protect your applications with Single Sign-On and 2 Factor.
Authelia is an open-source full-featured authentication server available on Github .