Open Source Identity and Access Management for modern Applications and Services.




TOTPRadius is described as 'A simple and cost-effective way to provide secure, policy-compliant and user-friendly on-premises two-factor authentication solution with self-enrollment' and is an app. There are more than 50 alternatives to TOTPRadius for a variety of platforms, including Web-based, Self-Hosted, SaaS, Linux and Mac apps. The best TOTPRadius alternative is Keycloak, which is both free and Open Source. Other great apps like TOTPRadius are authentik, Rauthy, Auth0 and LemonLDAP::NG.
Open Source Identity and Access Management for modern Applications and Services.




authentik is an open-source identity provider focused on flexibility and versatility.




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.


You can connect any application (written in any language or on any stack) to Auth0 and define its Connection, the method used to authenticate the users of that application:



LemonlLDAP::NG is a modular Web-SSO based on Apache::Session modules. It simplifies the build of a protected area with a few changes in the application. It manages both authentication and authorization and provides headers for accounting.




Microsoft Entra ID (formerly Azure Active Directory) is a comprehensive identity and access management cloud solution that provides a robust set of capabilities to manage users and groups.


Clerk is more than a "sign-in box." Integrate complete user management UIs and APIs, purpose-built for React, Next.js, and the Modern Web.

Amazon Cognito lets you add user sign-up/sign-in and access control to your web and mobile apps quickly and easily. Cognito scales to millions of users, and supports sign-in with social identity providers such as FB, Google, and Amazon, and SAML 2.0.

Okta's Workforce and Customer Identity Clouds enable secure access, authentication, and automation—putting identity at the heart of business security and growth.



Logto helps you build the sign-in, auth, and user identity within minutes. We provide an OIDC-based identity service and the end-user experience with username, phone number, email, and social sign-in, for web and native apps.




LoginRadius is SaaS based CIAM platform that manages consumer identity and privacy, allowing businesses to customize a secure and delightful digital experience their consumers will love.

