Best Supabase Templates & Starter Kits

A Supabase template gives you a schema, migrations, and generated TypeScript types — the parts that take a full day to get right from a blank project. What it does not give you is your actual data model. Auth tables, a user profile table synced to auth.users, and a storage bucket with sane RLS policies are genuinely reusable across projects. Your orders, posts, or properties tables are not — no template can predict your schema. Use a template to skip the boilerplate (auth sync, RLS boilerplate, storage policies, realtime subscription setup) and expect to write your actual business tables yourself, migration by migration.

Row Level Security is the single most common way a Supabase project ships a data leak. A default Supabase table has RLS disabled, which means every row is publicly readable through the API the moment you create the table — a mistake that is invisible in local testing because you are usually querying as an authenticated admin. A template worth using ships RLS policies pre-written and pre-enabled on every table, not just documented as "remember to add this." Test it yourself before shipping: open an incognito browser, hit your Supabase REST endpoint directly with no auth header, and confirm you get an empty result, not your users' data.

Supabase alone — auth, Postgres, storage, realtime, edge functions — is the backend; you still need a frontend to ship a product. Most "Supabase templates" are actually Next.js + Supabase templates, because Next.js server components pair naturally with Supabase's server-side auth helpers. If you are building with SvelteKit, Nuxt, or Remix instead, the Supabase configuration and RLS policies transfer directly — only the auth helper package and data-fetching syntax change. Do not pick a template by framework alone; check whether its RLS policies and schema design are documented well enough to port to your stack.