Clerk

Full-stack authentication and user management with drop-in UI components.

Build SoftwareGenerate full apps & sitesDeploy & monitorCompliance & risk

About

• Drop-in UI components for sign-up, sign-in, user profiles, multi-tenancy, and billing — fully brandable and deployable to your own domain. • Built-in fraud and abuse prevention blocks disposable email domains, email subaddress abuse, and bot sign-ups automatically. • Full session lifecycle management including active device monitoring, session revocation, and MFA enforcement. Clerk is a developer-focused authentication and user management platform that goes beyond basic login. It offers prebuilt React components, backend APIs, organization and multi-tenancy support, social SSO with 20+ providers, and billing UI — all SOC 2 Type 2 and CCPA compliant. Teams integrate Clerk to eliminate the cost and risk of building auth in-house while retaining full control over branding and user experience.

Who it's for

Authentication & user management for SaaS apps

AI level

Advanced

Key features

Drop-in auth UI componentsMultifactor authenticationSocial sign-on (20+ providers)Organization & multi-tenancySession managementFraud & bot preventionBilling UI componentsSOC 2 Type 2 compliance

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