Better Auth
Open source TypeScript auth framework with login, OAuth and plugins
12 tools like Auth0, chosen by what they do. About Auth0

Open source TypeScript auth framework with login, OAuth and plugins



Login and identity flows for customers, partners and AI agents

Open source identity and access management for apps and APIs

Customer identity and access management, self-hosted or cloud

Identity platform for workforce and customer login and access

Open source identity platform for login, SSO and access roles

APIs for adding single sign-on and enterprise features to apps

Self-hosted open source identity provider for SSO and MFA

Open source auth platform for sign-in, SSO and roles

Platform for building, testing and deploying voice AI agents