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Simple and Powerful Auth

Built for React

Magic links, social sign-in, multifactor, and more - added to your app in minutes.

Flexible and Efficient

React.js is a declarative and efficient open-source JavaScript library used for building user interfaces.

Customizable components

Clerk provides React with hooks and fully customizable components that allow users to include complete sign-in flows, user management, and authorization in minutes.

Seamless Integration

As an integral part of the Frontend Stack, React is a natural fit for Clerk. Modern web services like Clerk and React work intuitively together and don't require backend setup. The Frontend Stack saves time and resources, allowing you to focus on what makes your application unique.


Get Started

Complete user management

Clerk is the ideal solution to React authentication. Integrate complete user management into your application quickly, without sacrificing security.


Our easy-to-follow documentation will get your application working with user management and authentication quickly. Save development time with Clerk's comprehensive suite of tools.

Get Started

Get started with Clerk and React! We created this simple Clerk + React starter repository so that you can begin building your application immediately.

Radically simple auth

It only takes one line of code.

<SignIn />

Your sign-in flow is the only thing sitting between existing users and your application—it's absolutely critical that users can complete the process quickly.

import { SignIn } from '@clerk/nextjs';
return (
<BackgroundImage />
<SignIn />

<UserProfile />

A place for your users to change their password, turn on multifactor auth, revoke bad sessions, and more. Every app should offer the best security options, so every user can be safe.

import { UserProfile } from '@clerk/nextjs';
return (
<CustomHeader />
<UserProfile />

Immensely powerful

The features your users expect.

Magic links
Make passwords obsolete by sending your users magic links
Session management
Revocable and stateless, the best of both worlds.
Multifactor authentication
Secure your users with multiple steps during sign in.
Social sign-in
Let your users sign in with Google, Facebook, and more
Multi-session management
Allow your users to sign in to multiple accounts at once.
New device notifications
Proactively notify users when a new device signs in. Let's your users protect themself.
Password leak protection
Proactively protects your users against passwords that appear in leaks.
Advanced security
Clerk detects and blocks phishy sign ins out of the box.
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Start now,
no strings attached

Start completely free for up to 10,000 monthly active users and up to 100 monthly active orgs. No credit card required.

Start Building

Pricing built for
businesses of all sizes.

Learn more about our transparent per-user costs to estimate how much your company could save by implementing Clerk.

View pricing
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Clerk - Complete User Management


© 2024 Clerk Inc.


© 2024 Clerk Inc.