Supabase Auth

Authentication server and Supabase serviceOpen source· verified Oct 2026

Authentication with client SDKs, password and social sign-in, magic links, and JWT sessions. User records live in a Postgres auth schema; tokens integrate with Supabase's Data API and Row Level Security policies.

Official site

Reach for it when

Supabase applications that need identity linked to tested row-level policies
Teams choosing between managed Supabase Auth and operating the auth server themselves

Worth knowing

The auth server is MIT licensed; hosted plans have separate service limits and costs. Sign-in alone does not secure application tables: configure grants/RLS, keep privileged keys server-side, and handle cookie refresh for SSR.

Compared with

Supabase Auth vs Better Auth

More in Databases & backends

Supabase Neon PostgreSQL SQLite Firebase Redis MongoDB Prisma Drizzle Pinecone Qdrant DuckDB Better Auth Clerk SQLAlchemy Alembic Pydantic Yjs Hocuspocus