Open source
Ory
Open source identity and access management for apps and APIs
AuthenticationOpen source identity stack
Alternatives to FusionAuth
12 tools like FusionAuth, chosen by what they do. About FusionAuth
Free trial
Okta
Identity platform for workforce and customer login and access
AuthenticationWorkforce and customer login
Open source
ZITADEL
Open source identity platform for login, SSO and access roles
AuthenticationOpen source identity platform
Open source
authentik
Self-hosted open source identity provider for SSO and MFA
AuthenticationOpen source identity provider
Curated
Descope
Login and identity flows for customers, partners and AI agents
AuthenticationDrag and drop auth flows
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
SuperTokens
Open source user authentication with prebuilt login screens
AuthenticationOpen source auth for apps
Freemium
Open source
Keycloak
Open source identity and access management with single sign-on
SecurityOpen source identity and SSO
Open source
Better Auth
Open source TypeScript auth framework with login, OAuth and plugins
AuthOpen source TS auth