Clerk
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Clerk raises $15m Series A led by Madrona.

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More than authentication.
Complete user management.

Clerk is more than a "sign-in box." Integrate complete user management UIs and APIs, purpose-built for React, Next.js, and the Modern Web.

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Trusted by fast-growing companies around the world

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Auth & User components

Everything you need to onboard your users, and let them manage their account.

<SignIn/>

An optimized sign in experience thats also completely customizable. Choose the auth strategies you need — passwords, email codes or links, OAuth and more.

<SignIn/>
<SignIn/>
<SignIn/>
<SignIn/>
<SignIn/>
<SignIn/>

Auth & User components

Everything you need to onboard your users, and let them manage their account.

<SignIn/>

<SignIn/>

An optimized sign in experience thats also completely customizable. Choose the auth strategies you need — passwords, email codes or links, OAuth and more.

Start Building

Built for the Modern Web

The most powerful APIs
built specifically for the Modern Web

New technologies have made building on the web much easier; however, many dev tools haven’t kept up. At Clerk, we believe a component is worth 1,000 APIs and that they should work seamlessly in any stack so that you can build faster.

Docs for Clerk + JavaScriptDocs for Clerk + ReactDocs for Clerk + Next.jsDocs for Clerk + RemixDocs for Clerk + GatsbyDocs for Clerk + RedwoodDocs for Clerk + ExpoDocs for Clerk + NodeDocs for Clerk + RubyDocs for Clerk + GoDocs for Clerk + SupabaseDocs for Clerk + FirebaseDocs for Clerk + FaunaDocs for Clerk + Hasura

Component Customization

Helper components that help control the flow of your application across different states.

Appearance

Modify the theming of the prebuilt UIs. Compatible with Tailwind CSS, Chakra UI, Styled Components, custom CSS, and more. Light, Retro, Yolo...we can handle it all.

Localization

Override the default strings for any element to localize to any language or change the wording to match your brand.

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Component Customization

Helper components that help control the flow of your application across different states.

Light
Light
Light
Light
Light
Light
Light
Light
Light
Light
Light
Light
Light
Light
Light
Light

Appearance

Modify the theming of the prebuilt UIs. Compatible with Tailwind CSS, Chakra UI, Styled Components, custom CSS, and more. Light, Retro, Yolo...we can handle it all.

Localization

Override the default strings for any element to localize to any language or change the wording to match your brand.

Why Clerk

Created by engineers and founders, we built Clerk from the ground up to solve our own problem.

About our company
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Developer Experience

We are a team of dev-tool experts, and know all the pain points involved with building for the web. We’ve painstakingly built the authentication platform you’ve always wished you had — one that “just works”, and one that still keeps you in control of your user data and user experience.

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Secure by Default

We are a team of experienced web-security experts focused on helping you ship your product securely, without having to sweat over all the intricate security details. All of our APIs are built following industry best-practices and are regularly audited by 3rd parties.

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Dedicated Partners

We know auth is core to your app, so we go above and beyond to make sure you’re well supported. There’s always someone on call to answer any questions you may have, or there in case of emergencies. We offer industry leading SLAs and support agreements.

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Testimonials

Trusted by startups and

the world's largest companies

Clerk's integration

gives Supabase developers another incredible option for handling authentication. And the Clerk team are a pleasure to work with.

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Paul Copplestone

Supabase Cofounder

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Clerk's logo

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.

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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

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© 2024 Clerk Inc.


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© 2024 Clerk Inc.