Kinde

Kinde

Authentication and user management for modern apps

Features

  • Social login, email/password, and passwordless auth
  • Feature flags and A/B testing built in
  • Organization management with RBAC
  • SDKs for Next.js, React, Express, and more

Pros

  • Generous free tier (10,500 monthly active users)
  • Feature flags included — no separate service needed
  • Simple, developer-friendly setup

Cons

  • Smaller ecosystem and community than Clerk or Auth0
  • Fewer customization options for auth flows
  • Newer platform with less production track record

Overview

Kinde is an authentication and user management platform that combines auth with feature flags and user analytics. It provides social login, email/password, passwordless (magic link), and MFA authentication with SDKs for popular frameworks.

Kinde differentiates itself by including feature flags and A/B testing capabilities alongside authentication, reducing the need for separate services. It offers organization management, role-based access control, and a user management dashboard.

When to Use

Kinde is a good choice when you want auth plus feature flags in one platform, when the generous free tier fits your project size, or when you want a simpler alternative to Auth0 or Clerk with modern developer experience.

Getting Started

npm install @kinde-oss/kinde-auth-nextjs
// app/api/auth/[kindeAuth]/route.ts
import { handleAuth } from "@kinde-oss/kinde-auth-nextjs/server";

export const GET = handleAuth();