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.




Stack Auth is described as 'Stack is an open-source, self-hostable, and highly customizable authentication and user management system' and is a identity management tool in the development category. There are more than 25 alternatives to Stack Auth for a variety of platforms, including Web-based, SaaS, Self-Hosted, Android and Docker apps. The best Stack Auth alternative is VoidAuth, which is both free and Open Source. Other great apps like Stack Auth are Authelia, Keycloak, ZITADEL and AuthKit.
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.




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.



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.

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.


No-code authentication service. Octauthent can help you secure any website with a login form, without a single line of code.




FusionAuth is an auth for any app. Get everything you need for secure registration and user management in minutes. Single-tenant, on-prem or private cloud, custom emails with localization, social login, and more.




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




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.
Identity Cloud is a full end-to-end identity as a service (IDaaS) CIAM solution that enables companies to implement enterprise-grade identity management in a fast, flexible way. Engineered with a cloud-native architecture, the solution intelligently scales with application...
HelloID is a cloud-based Identity & Access Management (IAM) solution. It has functionality that includes automated self service, provisioning, password reset, among other modules.
Userfront makes it easy to add authentication, access control, SSO, and multi-tenancy to any web application.


