Clerk

Clerk

User authentication, management UIs and APIs

Overview

Clerk provides a complete suite of embeddable UIs, flexible APIs, and admin dashboards to authenticate and manage your users. It lets developers add login flows, user profiles, and admin controls into their apps through ready-to-use interfaces and programmable APIs, with an admin dashboard to manage users. Clerk differentiates itself by offering a cohesive set of UI components, APIs, and admin tooling that are designed to be embedded and customized easily, so teams can implement authentication and user management without building these parts from scratch. The goal is to help developers add secure, well-integrated authentication and user management to applications quickly by providing an all-in-one toolkit that fits into existing tech stacks.

Significant Headcount Growth

About Clerk

Simplify's Rating
Why Clerk is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Enterprise Software

Cybersecurity

Company Size

51-200

Company Stage

Seed

Total Funding

$200K

Headquarters

Bordeaux, France

Founded

2019

Simplify Jobs

Simplify's Take

What believers are saying

  • Clerk's free tier supports 50,000 MRUs, attracting Next.js and React startups.
  • Machine learning bot detection reduces fraudulent sign-ups during authentication.
  • Over 20 social login providers enhance user onboarding and session security.

What critics are saying

  • SuperTokens undercuts pricing, eroding Clerk's free tier beyond 50,000 MRUs.
  • Auth0 captures enterprises with superior SSO, causing multi-tenant churn.
  • Supabase Auth displaces Clerk via free self-hosting in developer communities.

What makes Clerk unique

  • Clerk provides drop-in UI components for authentication and profile management matching any CSS library.
  • Clerk offers built-in multi-tenancy for onboarding users and organizations in SaaS apps.
  • Clerk enables out-of-the-box subscriptions with plan management and content gating.

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Funding

Total Funding

$200k

Above

Industry Average

Funded Over

0 Rounds

Benefits

Competitive salary and equity

Gear of your choice for your home office

Unlimited vacation policy - 25 days recommended per year plus national holidays in your country of residence. Take time when you need i

Growth & Insights

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

47%

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