Best Auth & Identity
7 tools evaluated. Ranked by ecosystem strength, data quality, and developer experience.
Supabase Auth
It lives Inside your Postgres. You can write Row Level Security (RLS) policies based on Auth users directly in SQL.
Strong Alternatives
Auth.js
The default auth solution for Next.js. Built into the framework, supports OAuth, credentials, and magic links with zero vendor lock-in.
Auth0
The industry standard for Identity as a Service (IDaaS). Extremely powerful 'Actions' allow you to script custom logic into the auth flow.
Kinde
More than just Auth. They bundle Feature Flags and simple Billing to give you the 'Startup Kit' in one platform.
Best Pick by Use Case
The right tool depends on who you are and what you're optimizing for.
Prioritizes speed, cost, and simplicity. Needs to ship fast on a budget.
Auth.js has a free tier.
Runner-up: Supabase Auth
Prioritizes maturity, compliance, support, and scalability over cost.
Supabase Auth has enterprise support.
Runner-up: Auth0
Prioritizes free tiers, good docs, and low setup friction.
Auth.js has a free tier and is open source.
Runner-up: Supabase Auth
Prioritizes flexibility, multi-project support, and professional tooling.
Supabase Auth is open source and has enterprise support.
Runner-up: Auth.js
Also Tracked3 more
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