Self-hosted alternatives to Supabase

Cloudflarebase

Open-source Firebase alternative with auth, a realtime database, file storage and remote config on Cloudflare

What a Supabase user would miss

Postgres, joins across tables, SQL row-level security policies and vector search.

What it adds

Apache-2.0 and runs in your own Cloudflare account, with an SQL editor in the console and 30-day database rollback, per the README.

• Partly Postgres database with full SQL. Typed SQL tables on SQLite in Durable Objects with filters, aggregates, subqueries and CTEs; not Postgres, no DDL, and no cross-table joins except read-only views that lag by about 3 seconds.
• Partly Authentication with row-level security. Better Auth with roles and JWTs plus per-collection and per-table access modes (public, authenticated, owner, closed); no SQL row-level policies.
• Yes Automatic REST data APIs. Every project serves REST routes and an OpenAPI document at /api/projects/<id>/openapi.json.
• Yes Realtime data sync. Subscribe on any collection or table query, multiplexed over one WebSocket per client.
• Yes File storage. R2 buckets with access modes, signed URLs and multipart uploads.
• Partly Edge functions. The hosting agent deploys Workers on Workers for Platforms; no database or auth triggers found.
• No Vector embeddings. No vector or embedding code found in the repository.

Sources:github.com/cloudflarebase/cloudflarebasecloudflarebase.com/supabase.com/