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Authgear-server

authgear-server is an open-source authentication server that serves as an alternative to Auth0 and Firebase Auth. It provides secure, flexible, and scalable user authentication and identity management for web and mobile applications.

Language
Go
Latest Release
2026-03-17.0
License
Apache License 2.0

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Key Features

  • Open source authentication platform
  • Supports OAuth 2.0 and OIDC protocols
  • Multi-factor authentication (MFA) support
  • Social login integrations
  • Flexible user management APIs
  • Extensive security features

Alternative Tools

Auth0Firebase AuthFusionAuthKeycloak

Community

Stars
1.6k
Contributors
44
Open Issues
360
Forks
107