Alternatives to Clerk

Clerk is Clerk'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

• Auth0 — human 76, agent 90. Auth0 (Okta Customer Identity) is hosted authentication: Universal Login, social connections, RBAC, and Actions. The dashboard is dense. The OIDC/OAuth machine surface is the actual product, which agents and apps already speak. Humans feel the login box; agents feel client. Compare with Clerk
• 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 Clerk