Better Auth is a TypeScript authentication library that runs inside your own application instead of as an external service. User rows live in your own database behind Drizzle, Prisma, or Kysely adapters, so there is no monthly-active-user meter and no third-party service in the request path.
Open-source identity platform for login, SSO, and permissions
Stars13.9K
Commit1mo ago
LicenseApache-2.0
Ory is an open-source identity platform built around the Kratos server, offering passkeys, social sign-in, and single sign-on self-hosted or as the managed Ory Network.
Open-source user infrastructure for auth, payments, emails, and analytics
Stars6,861
Commitjust now
LicenseMIT / AGPL-3.0
Hexclave is an open-source user-infrastructure platform for authentication, teams, payments, emails, and analytics, available as managed cloud or free self-hosting.
Open source auth with SSO, passkeys, and user management
Stars2,091
Commitjust now
LicenseApache-2.0
Authgear is an open source identity platform with login flows, single sign-on, multi-factor authentication, and user management for web and mobile apps.