OpenContrail is an Apache 2.0-licensed project that is built using standards-based protocols and provides all the necessary components for network virtualization–SDN controller, virtual router, analytics engine, and published northbound APIs.
Allthenticator unifies digital and physical access with one smartphone-based identity. Users log in to systems and unlock doors via proximity. Supports SSH keys, passkeys, OTP, and peer-based recovery—all managed from a single admin dashboard.
Cost / License
- Free Personal
- Proprietary
Application type
Platforms
- iPhone
- Windows
- Android
- Linux
- Mac


+1
Kanidm is an identity management server, acting as an authority on account information, authentication and authorisation within a technical environment.


Rauthy is a lightweight and easy to use Identity Provider supporting OpenID Connect, OAuth 2.0 and PAM. It aims to be simple to both set up and operate, with very secure defaults and lots of config options, if you need the flexibility.



Better Auth is a framework-agnostic authentication and authorization framework for TypeScript. It provides a comprehensive set of features out of the box and includes a plugin ecosystem that simplifies adding advanced functionalities.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Online

Duo Mobile works with Duo Security's two-factor authentication service to make logins more secure. The application generates passcodes for login and can receive push notifications for easy, one-tap authentication.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch


+1
Ory builds cloud-native authentication (login), authorization (permission), delegation (OAuth2, OpenID Connect), and user management software. You can deploy what you need yourself or use the Ory Network and get started in minutes.
Cost / License
- Freemium
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Self-Hosted
- Software as a Service (SaaS)
Two-factor authentication app for Yandex accounts and also other QR-code based temporary codes for two-factor authentication
Cost / License
- Free
- Proprietary
Application type
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- HUAWEI AppGallery


+2
Secure: It is not possible to use your computer after you have locked it with KeyLock. Our software uses the Windows lock screen to lock your PC, making it impossible to reach the desktop. After unlocking, you can immediately use your computer again.
Cost / License
- Free
- Proprietary
Platforms
- Windows


+2
IndieAuth is a way to use your own domain name to sign in to websites. It works by linking your website to authentication providers such as Twitter or Google, then entering your domain name in the login form on websites that support IndieAuth.


Talo is an open source, self-hostable game backend. It's the easiest way to integrate leaderboards, stats, analytics and more into your game.


+3
CryptoPhoto gives you a fast and safe way to log into your favorite participating web sites while enjoying leading-edge protection against phishing, malware attacks, and scamming.
Cost / License
- Freemium
- Proprietary
Platforms
- Windows
- Android
- Android Tablet
- Self-Hosted


+3
Generates time- and counter-based one-time passwords, supports QR code imports, includes Notification Center widget, ad-free, and enables encrypted iCloud sync.
Cost / License
- Freemium
- Proprietary
Application type
Alerts
- Discontinued
Platforms
- Mac
- iPhone
- iPad
- Apple Watch


+4
Enhances account security with encrypted 2FA, MFA support, device sync, biometric and PIN lock, password manager, breach alerts, and Apple Watch access.


+5
Daito is a web-based 2FA authenticator for TOTP tokens. It enables you to share 2FA tokens with others to simply protecting shared accounts. No phone needed.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Online
- Software as a Service (SaaS)

CAcert.org is a community-driven Certificate Authority that issues certificates to the public at large for free.
pGina is a replacement for the default Windows Credential Provider. Through plugins, pGina allows you to configure the login process from authentication and authorization through Radius, SSH, Kerberos, POP, IMAP,... remote servers.
Cost / License
- Free
- Open Source (BSD-3-Clause)
Platforms
- Windows

privacyIDEA is a modular authentication server that can be used to enhance the security of your existing applications like local login, VPN, remote access, SSH connections, access to web sites or web portals with two factor authentication.
Cost / License
- Free
- Open Source (AGPL-3.0)
Platforms
- Linux
- Self-Hosted



Cost / License
- Free
- Open Source
Platforms
- Online
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.



SteamDesktopAuthenticator - Desktop implementation of Steam's mobile authenticator app.
Cost / License
- Free
- Open Source
Platforms
- Windows
- .NET Framework
Authenticator Plus generates 2-step verification codes to protect your accounts with your password and phone / tablet.
Cost / License
- Paid
- Proprietary
Application type
Alerts
- Discontinued
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch
- Android Wear





























































