Alternatives to AWS Cognito

Identity infrastructure, simplified

If you need authentication and user management for your app — login, signup, SSO (single sign-on — the thing that lets users log in with their company account), multi-factor auth, user roles — ZITADEL is a self-contained identity platform that does all of it. Think of it as an alternative to Auth0 or Clerk that you can self-host for free.

Open source alternative to Auth0/Firebase Auth/Cognito

If you need authentication for your app — login, signup, password reset, social login, multi-factor auth — and you don't want to pay Auth0's prices or lock into Firebase, SuperTokens is the open source alternative. It handles session management, email verification, passwordless login, and social OAuth out of the box.

Auth infrastructure for SaaS and AI apps

If you're building a SaaS app and need login, signup, SSO, multi-factor auth, and user management without spending months on it — Logto is an auth platform you can self-host for free or use their cloud. Drop in their SDK, get a polished login experience, manage users through their admin console, done.

Flexible identity provider

If you self-host a bunch of apps and you're tired of managing separate logins for each one, Authentik is an identity provider — it gives you one login screen that works across all your services. SSO (single sign-on), multi-factor auth, user directories, all in one place.