supertokens
Open source alternative to Auth0 / Firebase Auth / AWS Cognito
logto-io
🧑🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.
pennersr
Integrated set of Django applications addressing authentication, registration, account management as well as 3rd party (social) account authentication. 🔁 Mirror of https://codeberg.org/allauth/django-allauth/
pac4j
Security library for Play framework 2/3 in Java and Scala: OpenID Connect, SAML2, CAS, OAuth, LDAP, JWT...