Open Source Auth & sso Software

KeyCloak

Auth0

User authentication and session management framework

Authorization administration framework Open Policy

Identity platform

Authorization building framework

Okta

Users and authentication management SaaS

A free, secure and open source app for Android to manage your 2-step verification tokens.

The authentication glue you need.

The Single Sign-On Multi-Factor portal for web apps

The authentication solution for the passkey era.

Policy and data administration, distribution, and real-time updates on top of Open Policy Agent

OpenAM is an open access management solution that includes Authentication, SSO, Authorization, Federation, Entitlements and Web Services Security.

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

ZITADEL - The best of Auth0 and Keycloak combined. Built for the serverless era.