Guided scenario
Auth & login for a new app
Building sign-up, login, and account security from scratch is risky and time-consuming for a new product. This shortlist orders customer-identity platforms by a low entry price and a free monthly-active-user tier noted at last review, so you add auth via drop-in SDKs. Weigh passwordless and social login, MFA, and self-hosting as you grow.
Amazon Cognito
aws.amazon.com/cognito
Amazon Cognito is AWS's customer identity service, providing user pools for sign-up, sign-in, social login, passwordless authentication, and MFA, plus identity pools for federated access to AWS resources.
Clerk
clerk.com
Clerk is a developer-focused customer identity platform providing prebuilt authentication and user-management UI components, with strong support for React and Next.js.
Descope
www.descope.com
Descope is a no-code customer identity and access management platform for building authentication flows with a drag-and-drop builder.
Firebase Authentication
firebase.google.com/products/auth
Firebase Authentication is Google's service for adding user sign-in to apps, with support for email, social, and phone providers.
Frontegg
frontegg.com
Frontegg is a customer identity and access management platform built for B2B SaaS, offering authentication, multi-tenancy, and user management.
FusionAuth
fusionauth.io
FusionAuth is a customer identity and access management platform offering authentication, authorization, and user management, available self-hosted or as a managed service.
Keycloak
www.keycloak.org
Keycloak is the dominant open-source identity and access management server, providing single sign-on, social login, multi-factor authentication, and user federation for both workforce and customer identity.
Kinde
kinde.com
Kinde is an authentication and user management platform for SaaS products, with built-in support for organizations, roles, feature flags, and billing.
Ory
www.ory.sh
Ory is an open-source identity platform offering authentication, authorization, and user management, available self-hosted or as the managed Ory Network.
Stytch
stytch.com
Stytch is a developer platform for authentication, offering passwordless, MFA, social login, and fraud-prevention APIs including device fingerprinting.
Supabase Auth
supabase.com/auth
Supabase Auth is the authentication component of the open-source Supabase stack, offering user management with social and passwordless login.
