Open source
Better Auth
Open source TypeScript auth framework with login, OAuth and plugins
AuthOpen source TS auth
Alternatives to Clerk
12 tools like Clerk, chosen by what they do. About Clerk
Freemium
Open source
SuperTokens
Open source user authentication with prebuilt login screens
AuthenticationOpen source auth for apps
Open source
Logto
Open source auth platform for sign-in, SSO and roles
AuthenticationOpen source auth and identity
Freemium
WorkOS
APIs for adding single sign-on and enterprise features to apps
AuthenticationEnterprise SSO and SCIM
Open source
ZITADEL
Open source identity platform for login, SSO and access roles
AuthenticationOpen source identity platform
Open source
Ory
Open source identity and access management for apps and APIs
AuthenticationOpen source identity stack
Curated
Curated
Descope
Login and identity flows for customers, partners and AI agents
AuthenticationDrag and drop auth flows
Open source
authentik
Self-hosted open source identity provider for SSO and MFA
AuthenticationOpen source identity provider
Open source
PocketBase
Single-file open source backend with database, auth and storage
Backend as a ServiceSingle-file backendArchived
Freemium
FusionAuth
Customer identity and access management, self-hosted or cloud
AuthenticationDeveloper friendly identity