Clerk

More than authentication, complete user management.

Freemium

Description

Clerk provides a comprehensive solution for authentication and user management, enabling businesses to quickly integrate secure sign-in, user profiles, organization management, and billing into their applications. The platform streamlines user onboarding, enforces advanced security protocols, and supports scalable team and multi-tenancy features, all accessible through ready-made UI components and developer-friendly SDKs.

Designed to accelerate product launches and reduce engineering effort, Clerk ensures compliance with industry standards and simplifies session, role, and subscription management. Its seamless integrations and extensive customization options support enterprises and startups seeking to improve user experience and operational security.

Key Features

User Authentication: Secure sign-in, sign-up, and profile management with support for passwords, magic links, and social logins.
Multifactor Authentication: Enforces SMS, authenticator apps, and backup codes for extra security.
Fraud and Abuse Prevention: Built-in bot detection, email subaddress and disposable domain blocking, and machine learning-based abuse mitigation.
Session Management: Active device monitoring, session revocation, and simultaneous sessions for robust access control.
Organizations and Multi-tenancy: Custom roles, permissions, organization creation, switching, and verified domain auto-join.
Subscription Billing: Drop-in billing components to manage and unify user and subscription data and gate access to content.
Customizable UI Components: Pre-built, pixel-perfect React components for authentication, profile, organization, and billing flows.
Developer SDKs & Integrations: Support for modern frameworks and integrations with platforms like Next.js, React, Supabase, Convex, and Vercel.
Security Compliance: SOC 2 Type 2 and CCPA compliance with regular audits and penetration tests.
Social Sign-On: Seamless SSO via 20+ providers including Google and GitHub.

Use Cases

User authentication for web and mobile apps
Onboarding and managing users in SaaS applications
B2B multi-tenant organizational access control
Implementing secure multifactor authentication
Handling subscription billing workflows
Centralizing user session and device management
Integrating user management with modern frameworks
Enforcing compliance and advanced security practices

Frequently Asked Questions

What happens when I exceed the first 10,000 monthly active users or 100 monthly active organizations?

Once you exceed the free tier limits, you will need to upgrade to the Pro plan, where each additional user or organization incurs a monthly fee. A one-month grace period is provided to ensure application continuity.

Is there a free trial?

All pro features can be tested in development mode without a traditional time-limited trial. You will be prompted to purchase a plan only when enabling paid features in production.

How is an active user or organization defined?

A monthly active user is counted when they return 24 hours after signing up. An active organization is one with at least two members and at least one active user during the month.

Does Clerk offer migration assistance?

Migration assistance is included in the enterprise plan. For other plans, the migration guide and support team are available to assist with user data migration.

Can I export my data?

You can export your user data at any time directly from the dashboard, ensuring full control over your information.