Open Source Alternatives

Alternatives to AWS Cognito

User authentication and authorization service from Amazon.

4 drop-in replacements2 building blocks

AWS Cognito is a trademark of its respective owner.

Updated Apr 2026

Quick Compare

	ZITADEL	SuperTokens	Logto
Score	29	28	13
Overlap	75%	72%	72%
Migration	moderate	moderate	moderate
License	GNU Affero General Public License v3.0	Apache License 2.0	Mozilla Public License 2.0
Best for	Small teams	Small teams	Small teams

Drop-in Replacements

Ranked by Discovery Score

ZITADEL

2975% coverage

Identity infrastructure, simplified

ZITADEL is a self-contained identity platform: login, signup, SSO, multi-factor auth, user roles, all in one. It's an alternative to Auth0 or Clerk that you can self-host for free.

13.4k ★+66/wkGoGNU Affero General Public License v3.0

SuperTokens

2872% coverage

Open source alternative to Auth0/Firebase Auth/Cognito

SuperTokens is the open source authentication platform: signup, password reset, social login, multi-factor auth, without Auth0 prices or Firebase lock-in. It handles session management, email verification, passwordless login, and social OAuth out of the box.

15.0k ★+14/wkJavaApache License 2.0

Logto

1372% coverage

Auth infrastructure for SaaS and AI apps

Logto is an auth platform you can self-host for free or use their cloud: login, signup, SSO, MFA, and user management for SaaS apps. Drop in their SDK, get a polished login experience, manage users through their admin console, done.

11.9k ★+62/wkTypeScriptMozilla Public License 2.0

Authentik

1270% coverage

Flexible identity provider

SSO (single sign-on), multi-factor auth, user directories, all in one place. The open source version is extremely capable.

20.8k ★+114/wkPythonMIT + Enterprise

Building Blocks

AWS Cognito is a platform — it bundles multiple capabilities into one subscription. These tools each cover one piece. Teams often assemble 2–3 of them instead of paying for the full suite.