Clerk | Authentication and User Management

Clerk raises $50m Series C

Trusted by fast-growing companies around the world.

Everything you need for authentication

Ever feel like authentication requirements change with the season? Clerk keeps up with the latest trends and security best practices.

Fast and reliable one-time passcode delivery with built-in brute force prevention.

Organizations

The easy solution to multi-tenancy

Clerk has all the features you need to onboard and manage the users and organizations of your multi-tenant SaaS application.

Build with SDKs for modern frameworks

Clerk keeps developer experience front-and-center by providing helpful SDKs for most modern frameworks on web and mobile.

Integrate with the tools you love

Leverage Clerk as the source of truth for your user data and integrate with the tools that you already depend on.