Best Open Source Authentication & SSO Providers using Python in 2026

Keycloak

Secure authentication and access control made simple

Stars
33,960
Forks
8,256
Last commit
10 hours ago

Comprehensive open source identity management solution offering single sign-on, social login, and fine-grained authorization for applications and services.

Open Source Alternative to:

Auth0

JumpServer

Secure access management for modern IT infrastructure

Stars
30,321
Forks
5,697
Last commit
3 days ago

Open-source privileged access management solution offering secure, browser-based access to SSH, RDP, Kubernetes, databases and remote applications.

Open Source Alternative to:

Teleport

Authentik

Take control of your identity with a secure, flexible solution

Stars
21,066
Forks
1,551
Last commit
6 hours ago

authentik is an open-source identity provider that offers self-hosted authentication, authorization, and user management for businesses of all sizes.

Open Source Alternative to:

Clerk

SuperTokens

Secure, customizable authentication for your applications

Stars
15,013
Forks
658
Last commit
1 day ago

Open-source authentication solution offering flexible, self-hosted user management with advanced features and easy integration.

Open Source Alternative to:

Clerk

Authgear

Secure identity management and authentication for modern apps

Stars
1,650
Forks
106
Last commit
3 days ago

A managed authentication platform that helps developers implement secure user identity features like SSO, MFA, and social login without complex infrastructure.

Open Source Alternative to:

Clerk

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Keycloak

Secure authentication and access control made simple

Stars
33,960
Forks
8,256
Last commit
10 hours ago

Comprehensive open source identity management solution offering single sign-on, social login, and fine-grained authorization for applications and services.

Open Source Alternative to:

Auth0

JumpServer

Secure access management for modern IT infrastructure

Stars
30,321
Forks
5,697
Last commit
3 days ago

Open-source privileged access management solution offering secure, browser-based access to SSH, RDP, Kubernetes, databases and remote applications.

Open Source Alternative to:

Teleport

Authentik

Take control of your identity with a secure, flexible solution

Stars
21,066
Forks
1,551
Last commit
6 hours ago

authentik is an open-source identity provider that offers self-hosted authentication, authorization, and user management for businesses of all sizes.

Open Source Alternative to:

Clerk

SuperTokens

Secure, customizable authentication for your applications

Stars
15,013
Forks
658
Last commit
1 day ago

Open-source authentication solution offering flexible, self-hosted user management with advanced features and easy integration.

Open Source Alternative to:

Clerk

Authgear

Secure identity management and authentication for modern apps

Stars
1,650
Forks
106
Last commit
3 days ago

A managed authentication platform that helps developers implement secure user identity features like SSO, MFA, and social login without complex infrastructure.

Open Source Alternative to:

Clerk

Open Source Authentication & SSO Providers using Python

A curated collection of the best open source platforms providing authentication, Single Sign-On (SSO), and user management. using Python.