Your data, your control. Fully open source, authentication and authorization. No lock-ins. Deployment in Railway.app | Heroku in 120 seconds || Spin a docker image as a micro-service in your infra. Built in login page and Admin panel out of the box.


Auth0 is described as '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:' and is a identity management tool in the development category. There are more than 50 alternatives to Auth0, not only websites but also apps for a variety of platforms, including SaaS, Self-Hosted, Linux and Mac apps. The best Auth0 alternative is Keycloak, which is both free and Open Source. Other great sites and apps similar to Auth0 are AuthKit, ZITADEL , Authelia and Hanko.
Your data, your control. Fully open source, authentication and authorization. No lock-ins. Deployment in Railway.app | Heroku in 120 seconds || Spin a docker image as a micro-service in your infra. Built in login page and Admin panel out of the box.


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.



With AWS Identity and Access Management (IAM), you can specify who or what can access services and resources in AWS, centrally manage fine-grained permissions, and analyze access to refine permissions across AWS.

Nubus is a modular open-source solution for centralized identity & access management, providing secure user management, role-based access control, and Single Sign-On (SSO) via a central web portal.



Low code user authentication platform for Webflow, React, Python & Node applications, and industry leading authentication protocols.

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.


The Gluu Server is a container distribution of free open source software (FOSS) for identity and access management (IAM). SaaS, custom, open source and commercial web and mobile applications can leverage a Gluu Server for user authentication, identity information, and policy...
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.
It is a truly free and open alternative and is built with a modern architecture in mind.


Ory is the most popular Android, iPhone & iPad alternative to Auth0.
No-code authentication service. Octauthent can help you secure any website with a login form, without a single line of code.




Frontegg is a developer platform that enables product-led-growth through a customer-facing user-management interface embedded seamlessly within any product.




Its more reliable and secure than others and the dashboard is fill with features that came to us with a surprise :) all in all the best single sign on and two factor authentication services that we have availed till now.