supabase-off-ramp

Stands up Replacebase, a TypeScript server that gives the user's own Postgres database and S3-compatible bucket the same REST, auth, storage and realtime interface the Supabase JavaScript client speaks, so a frontend keeps working after leaving hosted Supabase. Covers choosing between a framework mount and a standalone Node service, gathering credentials including the JWKS discovery URL used to verify existing asymmetrically signed Supabase tokens, repointing the client, approval-gated compatibility checks, and later relocating the database or file storage. Use when the user wants to leave hosted Supabase while keeping the Supabase client, self-host a Supabase-compatible backend on Next.js, Express, Fastify, Hono, Bun, Deno or Cloudflare Workers, or move its Postgres or object storage to another provider. Not for migrating into hosted Supabase, writing Row Level Security policies or Edge Functions, or general Postgres and S3 work unrelated to a Supabase-compatible backend.

Version

v1.0.0

Size

18 KB

Updated

2026-10-12

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