Clerk
Drop-in auth and user management for Next.js
Clerk is a complete auth and user management solution with pre-built UI components — sign-in, sign-up, user profile, org switching — that integrate in minutes. Supports email/password, magic link, OTP, OAuth (Google, GitHub), and MFA. Free tier: 10,000 monthly active users.
Best for
Use when
You're building a Next.js or React app and want production-ready authentication with org/role support out of the box.
Skip when
You're on a Python or Laravel backend — Clerk shines in the JS/TS ecosystem. Use Supabase Auth or Auth0 otherwise.
No Africa restrictions. SMS OTP works with Nigerian and Kenyan numbers via Clerk's Twilio integration.
Alternatives
Supabase Auth, Auth0, NextAuth.js, Firebase Auth
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