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Clerk

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Clerk provides authentication, user profiles, and organization management with easy-to-use components and APIs for React, Next.js, and more.

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Clerk offers a comprehensive user management platform for modern web applications. Key features include:

Authentication and Identity:

  • Social sign-on with 20+ providers
  • Email and SMS one-time passcodes
  • Magic links for passwordless auth
  • Multifactor authentication
  • Bot detection and fraud prevention

User Management:

  • Customizable user profiles
  • Session management across devices
  • Role-based access control

Organization Management:

  • Multi-tenancy support
  • Custom roles and permissions
  • Auto-join based on email domain
  • Team invitations

Developer Experience:

  • Pre-built UI components (SignIn, UserProfile, etc.)
  • SDKs for React, Next.js, Remix and more
  • Webhooks for extensibility
  • Easy integration with databases like Supabase

Security and Compliance:

  • SOC 2 Type 2 certified
  • CCPA compliant
  • Regular security audits

Clerk aims to simplify user management for developers while providing a seamless experience for end-users. It's free for up to 10,000 monthly active users, making it suitable for projects of all sizes.