A complete suite of embeddable UIs, flexible APIs, and admin dashboards to authenticate and manage your users.

easy integration (8)

comprehensive solution (5)

prebuilt UI components (4)

beautiful components (2)

secure login flows (2)

easy integration (8)

comprehensive solution (5)

prebuilt UI components (4)

beautiful components (2)

secure login flows (2)

Stop googling for a solution and just use this. This is likely exactly what you need. Clerk helps you avoid the hassle of having to deal with authentication both on the BE and the FE. It is not worth opting for another free/open-source solution as the free tier on Clerk is quite generous and will help you get started.

Clerk is a great auth service for building web apps. It makes it easy to add auth and user management, my experience with React/NextJS. Looking forward to seeing what the team adds next

Worked on some client projects and demo with this. Really love how easy it is to use and the generous free tier.

Extremely easy to integrate into your service. Excellent documentation.

We initially began building user management in-house but quickly realized that creating a secure and seamless user experience involved more complexity than anticipated. It was clear that continuing down this path would pull valuable engineering resources away from our core product. Clerk provided a comprehensive solution, covering everything from account life cycle to payment integration. This shift allowed us to focus on our primary goals while still ensuring a great user experience.

Clerk makes authentication effortless, with a developer-friendly API and prebuilt UI components that save time. Unlike Auth0 or Firebase Auth, Clerk provides first-class support for modern frameworks like Next.js and integrates seamlessly with Supabase and Vercel. The built-in user management, multi-factor auth, and social logins simplify everything, while its flexible session management ensures security without complexity. For PullSense, it made user authentication seamless without the usual headaches.

Clerk made authentication a breeze. The built-in UI, support for social logins, and seamless Clerk + Next.js integration saved us weeks of dev time. We evaluated Auth0 and Firebase Auth, but Clerk's modern DX and amazing docs clearly stood out. Highly recommend for any modern SaaS.

Clerk

An authentication and user management platform

An authentication and user management platform

Clerk Reviews

The community submitted 80 reviews to tell us what they like about Clerk, what Clerk can do better, and more.

What's great

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What's great

What's great

What's great