React Authentication Simplified with Clerk
Add authentication and user management to your React app in minutes - not weeks. Try it free today!
Save development time
Add authentication and user management to your app with just a few lines of code
Add intuitive UIs designed to decrease friction for your users
Protect your users
Enable features like two-step verification and enjoy automatic security updates
Match your brand
Theme our pre-built components, or integrate with our easy-to-use APIs
Trusted by over 4,000 applications
A flexible authentication plugin to fit your needs
Clerk supports multiple authentication strategies so you can implement the one that best supports your users
Don’t tackle authentication alone
From social logins and magic links to multi-factor auth and SMS passcodes, gone are the days when you need to build authentication from scratch.
Everything you need, all in one place
We provide you with user and session management, meaning you can speed up your application with sub-millisecond authentication, mitigate hackers with active device management and revocation, and much more.
We take security and privacy (very) seriously
Clerk is SOC 2 type certified, GDPR & CCPA compliant, and conducts regular third-party audits and pen testing. We want to take the security burden off your shoulders.
Seeing is believing
Watch our demo to experience how fast and easy it is to implement Clerk.
Ready to see what Clerk can do?
Start completely free for up to 500 monthly active users. No credit card required.
Really good stuff. The integration story is already really quite good and the Clerk team has really good ideas on how to make it even better and more seamless.