Authentication & identity providers
12 apps ranked by verified data. See how ranking works
FusionAuth is a developer-focused authentication and user management platform that can be self-hosted for free (Community Edition) or run as a managed cloud service.
Ory is an open-source identity platform composed of modular services — Kratos for identity/authentication, Hydra for OAuth2/OIDC, and Keto for permissions — that can be self-hosted or consumed as a ma.
Zitadel is an open-source identity and access management platform, written in Go, offering OIDC/OAuth2/SAML, MFA, passwordless, and a native multi-tenant 'organizations' concept designed for SaaS prod.
Auth0 (an Okta company) is a developer-focused identity platform providing authentication, authorization, social and enterprise SSO, MFA, and user management via drop-in SDKs and a hosted login, for w.
Clerk is a developer-first authentication and user-management platform with pre-built React/Next.js UI components, social and passwordless login, passkeys, MFA, and B2B organizations, designed to add.
Frontegg is a B2B-focused identity platform that bundles authentication, tenant/org management, roles and entitlements, and a pre-built admin portal for end customers.
Stytch is a developer platform for authentication and fraud prevention, offering passwordless and passkey login, social and enterprise SSO, B2B multi-tenant auth, and device fingerprinting through API.
WorkOS is a platform of enterprise-readiness APIs — SAML/OIDC single sign-on, SCIM directory sync, audit logs, and its AuthKit user management — that lets B2B SaaS apps add the features enterprise cus.
Descope is a customer identity and access management (CIAM) platform that lets developers build authentication journeys (social login, passwordless, MFA, passkeys) with a visual no-code/low-code flow.
Keycloak is an open-source identity and access management server (a CNCF project) offering single sign-on, social and enterprise SSO, user federation, MFA, and fine-grained authorization, self-hosted.
Amazon Cognito is AWS's managed customer identity and access management service, providing user pools for sign-up/sign-in, social and enterprise SSO federation, MFA, and native passkey support, plus f.
