About Clerk
Clerk is a full-stack authentication and user-management platform built for React, Next.js, and modern web apps. It provides drop-in UI components, user-management UIs, and APIs to help teams launch quickly, scale efficiently, and handle authentication, organization management, and billing.
Key Features
Clerk helps developers add secure authentication and organization-based user management with ready-made UIs and a cohesive API surface, so you can deploy faster and keep branding consistent:
Drop-in UI Components
Pixel-perfect UIs for authentication, profile management, organization management, and billing that you can embed quickly and style to match your brand.
Organization Management
Tools to create and manage organizations, switch accounts, manage memberships and invitations.
Billing & Pricing Integration
Built-in billing components and pricing display to help users manage subscriptions and plan comparisons.
Authentication & User Management APIs
Complete sign-up/sign-in flows, user profiles, and security settings via reusable APIs and components.
Summary
Best for product and engineering teams building multi-tenant apps, growth-stage startups needing fast onboarding, and ops teams handling orgs and subscriptions.
Pricing
View pricingFree plan
US$0 / per month
- 10,000 monthly active users (MAUs)
- No charge for users who sign up but never return
- Pre-built components
- Custom domain
Pro plan
US$25 / per month
- $0.02 per MAU (your first 10,000 are free)
- Remove Clerk branding
- Allowlist / blocklist
- Customizable session duration
- …and much more
Enhanced authentication add-on
US$100 / per month
- Multi-factor auth (SMS, TOTP, backup codes)
- Device tracking and revocation
- Satellite Domains
- Simultaneous sessions
- Enterprise SSO (EASIE, SAML, OIDC)
Enhanced administration add-on
US$100 / per month
- User impersonation
- Custom dashboard roles (Coming soon)
- Audit logs (Coming soon)
Organizations features in Pro plan
$1 / per MAO
- Unlimited members per organization
- Organizations without at least one MAU are free
Enhanced Organizations add-on
US$100 / per month
- Domain restrictions / Verified domains
- Automatic invitations
- Custom roles and permissions
Enterprise
Contact sales / N/A
- 99.99% Uptime SLA
- Support SLA
- Tiered Usage pricing available
- HIPAA compliance available with BAA
- Onboarding & migration support
- Dedicated Slack support
