ClerkHosted serviceBest forDropping prebuilt sign-in, profile and organization UI into a React or Next.js app.
Trade-offPer-user pricing grows with you; users live in Clerk, not your database.
6 of the 10 Astro products here · free tier
Authentication · for Astro
Authentication for Astro
Among 10 makers' products we track that are built with Astro, here's what they chose for authentication — each counted from a live-product source.
Hosted service or library in your own app. Hosted services give you UI, MFA and security updates for a monthly bill and some lock-in; libraries keep users in your own database for free, and you own the upkeep.
What makers on Astro chose
Clerk6
Supabase1
Better Auth1
WorkOS1
SuperTokens1Counts are live products with a source, not market share; a product using two options counts in both.
ClerkHosted serviceSupabaseBundled with your backendBest forApps already on Supabase — auth is part of the same project as the database.
Trade-offLess polished UI components than dedicated auth services.
1 of the 10 Astro products here · free tier · open source
Better AuthLibrary in your appBest forTypeScript apps that want users and sessions in their own database, at no cost.
Trade-offYou host it and keep it patched; UI is yours to build.
1 of the 10 Astro products here · free tier · open source
WorkOSHosted serviceBest forB2B SaaS that will need enterprise SSO and directory sync.
Trade-offIts free tier covers basic sign-in, but enterprise SSO and directory sync are priced per connection — worth it once a customer pays for them.
1 of the 10 Astro products here · free tier
SuperTokensOpen-source serviceBest forOpen-source auth with prebuilt login UI and backend SDKs, self-hosted for free or on their cloud.
Trade-offThe core runs as a separate service next to your backend; MFA and some features are paid add-ons on the cloud.
1 of the 10 Astro products here · free tier · open source
Also real options for authentication, not seen among these Astro products yet: Firebase, Auth0.