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




Permit.io is described as 'The permissions infrastructure for the internet. It fullstack authorization solution that enables developers to bake in access control into their code in minutes and be ready for future requirements from customers and regulators' and is an app. There are more than 10 alternatives to Permit.io for a variety of platforms, including Self-Hosted, SaaS, Web-based, Mac and Linux apps. The best Permit.io alternative is Keycloak, which is both free and Open Source. Other great apps like Permit.io are Better Auth, Amazon Cognito, Authorizer (authentication) and Logto.
Open Source Identity and Access Management for modern Applications and Services.




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.

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.

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.




Aserto is an application authorization as a service. It helps developers add real-time resource-level access controls to their applications. SDKs and quickstarts for every popular languages are available to help you get up and running quickly.



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...
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.




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.
HelloID is a cloud-based Identity & Access Management (IAM) solution. It has functionality that includes automated self service, provisioning, password reset, among other modules.
Cerbos helps teams separate their authorization process from their core application code, making their authorization system more scalable, more secure and easier to change as the application evolves.


Userfront makes it easy to add authentication, access control, SSO, and multi-tenancy to any web application.


