7 alternatives · Authentication & Identity
Best alternatives to Supabase Auth in 2026
Supabase Auth is the authentication system built into the Supabase platform. It supports email/password, magic link, social OAuth (Google, GitHub, Discord, and more), phone OTP, and enterprise SSO via SAML. Its key differentiator is deep integration with Supabase's Postgres database through Row Level Security policies, allowing you to define data access rules based on the authenticated user directly in the database.
What is Supabase Auth?
Why look for Supabase Auth alternatives?
Supabase Auth is tightly coupled to the Supabase ecosystem. Teams not using Supabase for their database need a standalone auth solution. It also lacks the pre-built UI components of Clerk, requiring more frontend implementation work.
7 alternatives to Supabase Auth
Secure access for everyone. But not just anyone.
Auth0 is a flexible, drop-in authentication and authorization platform supporting social login, MFA, SSO, and enterprise identity providers. Now part of Okta, it is one of the most widely deployed auth solutions for web and mobile applications.
More than a login box. Complete user management.
Clerk provides pre-built UI components, APIs, and a dashboard for user authentication and management. It handles login, registration, user profiles, organizations, and session management with minimal setup, and is particularly popular with Next.js developers.
Simple, free multi-platform sign-in.
Firebase Authentication provides backend services and SDKs for authenticating users across web, iOS, Android, and Unity. It supports email/password, phone auth, and social providers, and integrates directly with other Firebase and Google Cloud services.
Authentication for Next.js.
NextAuth.js (now Auth.js) is an open-source authentication library for Next.js that handles OAuth, email/password, and magic link authentication with minimal configuration. It is self-hosted, stores sessions in your own database, and has zero per-user fees.
Identity for the internet. Secure every digital interaction.
Okta is the leading enterprise identity platform providing workforce and customer identity solutions. It covers SSO, MFA, lifecycle management, and advanced security policies for large organizations with complex compliance requirements.
Add enterprise features in minutes, not months.
WorkOS provides APIs for adding enterprise SSO (SAML), directory sync (SCIM), audit logs, and fine-grained authorization to SaaS products. It is designed for B2B SaaS companies that need to close enterprise deals requiring these compliance features.
The developer-first authentication platform.
Stytch is a developer-first authentication platform focused on passwordless login methods — magic links, one-time passcodes, biometrics, and passkeys. It offers both hosted UI and headless APIs for fully custom authentication experiences.
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Frequently asked
Is Supabase Auth free?
Supabase Auth is included in Supabase's free tier, which supports up to 50,000 monthly active users. Paid plans unlock more MAUs and enterprise features. The free tier is one of the most generous in the authentication space.
What is Row Level Security and how does it relate to auth?
Row Level Security (RLS) is a Postgres feature that restricts which database rows a user can read or write. Supabase Auth integrates with RLS so you can write policies like "users can only read their own data" enforced at the database level, not just in application code.
Can I use Supabase Auth without the rest of Supabase?
Technically yes, but it is designed to work with the Supabase stack. Teams using different databases or backend frameworks find it awkward to use Supabase Auth in isolation. Clerk or Auth0 are better choices for projects not built on Supabase.
Does Supabase Auth support social login?
Yes. Supabase Auth supports Google, GitHub, Facebook, Apple, Discord, Twitter, Spotify, and many other OAuth providers. Social providers are configured through the Supabase dashboard with minimal setup.
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