The best open source alternative to Okta is VoidAuth. If that doesn't suit you, our users have ranked more than 50 alternatives to Okta and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Okta are Keycloak, authentik, ZITADEL and AuthKit.
Open-source authentication and user management platform offering passkey-based SSO, centralized login, user invitations, self-registration, and email integration for self-hosted deployments. Emphasizes privacy, admin and user ease, local data control, and strong security.
Open Source Identity and Access Management for modern Applications and Services.
authentik is an open-source identity provider focused on flexibility and versatility.
Secure authentication management for your application. Customize as you grow, with easy APIs and programmable workflows. Focus on growing, your login is in good hands.
AuthKit is a Radix-powered open source authentication UI built for effortless customizations. User Management is the backend platform handling email verification, account linking, bot blocking, organization modeling, and more.
Hanko is a modern open source Authentication & User Management system – built and hosted in the EU. Alternative to Clerk, Auth0, Stytch, Descope.
Stack is an open-source, self-hostable, and highly customizable authentication and user management system.
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.
Kanidm is an identity management server, acting as an authority on account information, authentication and authorisation within a technical environment.
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.
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.
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Implementing authentik is quite easier than Keycloak by following the official guide and the integration of apps like Mastodon, Portainer or Nextcloud is made easily.