Alternatives to Auth0

Auth0 is Okta's product. These alternatives are other published catalog entities that share a job-to-be-done. This is not an affiliate grid and not a paid inclusion list.

Shortlist

Why these names

• Clerk — human 88, agent 86. Clerk sells beautiful auth components plus a user management backend, especially for Next.js and B2B organizations. Humans get a polished sign-in in an afternoon. Agents get Backend APIs and webhooks. Compared with Auth0 it is more frontend-opinionated and less. Compare with Auth0
• Supabase — human 86, agent 93. Supabase is the open-source Firebase alternative: Postgres, Auth, Storage, Realtime, and Edge Functions with a studio GUI. Humans click tables. Agents use the REST and JS clients, RLS, and the CLI to migrate. This directory itself targets a Supabase project. We score the. Compare with Auth0