Clerk Authentication Alternatives

The world's best login box, powered by WorkOS + Radix.

Open Source Identity and Access Management for modern Applications and Services.

Open Source

Verify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance.

Try for free freemium $0.1 (per credit)

Auth0 is a program for people to get authentication and authorization services for their own business use.

Open Source

Identity infrastructure, simplified for you.

Open Source freemium $100.0 / Monthly (1'000 Daily Active Users included)

Empowering your journey from passwords to passkeys

Open Source

Build amazing real‑time collaborative products

Open Source

AWS Identity and Access Management enables you to securely control access to AWS services and resources for your users.

Application and Data, Application Utilities, and User Management and Authentication

Vault Vision's passwordless login technology powered by authentication software and hardware devices enables easier identity management for IT admins and seamless security for end users.

Enterprise-grade identity management for all your apps, users & devices

Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.

FusionAuth is a CIAM platform that is 100% free for unlimited users.

Open Source freemium

Authelia is an open-source authentication server providing SSO and two-factor for your applications running behind NGINX.

Open Source