Clerk

Active

The easiest way to build authentication

South Park Commons

What it does

Clerk is a developer platform for user authentication and management. It provides drop-in, customizable UI components and APIs for modern frontend frameworks, handling sign-up, sign-in, and the full auth flow out of the box so teams can ship secure user management without building it from scratch.

Its site says now · captured 2026-08-23

Clerk | Authentication and User Management

The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, Remix, and “The Modern Web”.