S
Supabase Auth
Open-source authentication built into Supabase
freemiumFrom $25/moauthsupabaseopen-sourcepostgresql
Overview
Supabase Auth is a complete authentication system built on top of PostgreSQL Row Level Security. Supports email/password, magic links, social providers, and phone auth.
Key Features
- ✓Email/password auth
- ✓Magic link login
- ✓Social OAuth providers
- ✓Phone auth (SMS)
- ✓Row Level Security
- ✓JWT tokens
Pros
- +Bundled with Supabase (DB + Auth + Storage)
- +Open source (self-hostable)
- +Generous free tier
Cons
- −UI components less polished than Clerk
- −Tied to Supabase ecosystem
- −Documentation can be scattered
Alternatives to Supabase Auth
C
Clerk
freemiumDrop-in authentication and user management
authuser-managementnext.js
From $25/mo
N
NextAuth.js (Auth.js)
Open SourceOpen-source authentication for Next.js
authnext.jsopen-source
F
Firebase Authentication
freemiumGoogle-backed authentication service
authgooglefirebase
From $0.01/verification
A
Auth0
freemiumEnterprise-grade identity platform
authenterpriseidentity
From $35/mo