The most modern user management system for React & Next.js apps
Clerk is a modern user management platform specifically designed for React, Next.js, and other JavaScript frameworks. With pre-built UI components and a developer-friendly API, you can implement a complete authentication solution in minutes.
Over 15,000 developers use Clerk for fast, secure, and beautiful authentication in their modern web applications.
Pre-built, customizable components
React/Next.js hooks & components
Theme system & CSS-in-JS support
SignIn, SignUp, UserProfile ready-to-use
Multi-tenancy & team management
JWT tokens & session handling
Real-time user events
Drop-in React components
Customizable login component
Registration flow component
Complete profile management
Team & org management
Modern developer experience
The difference from traditional auth solutions
Compare different authentication services
Tell us about your vision and we'll turn it into digital reality
From idea to MVP in record time
Every line of code aims for your success
Your data is safe with us
Latest tech stack for sustainable success