ToasterDB vs Supabase
Supabase gives you a broad backend platform. ToasterDB goes deeper on the data layer -- field-level security, privacy compliance, validation, and a schema-driven app runtime.
How they compare
| Feature | ToasterDB | Supabase |
|---|---|---|
| Field-Level Security | ✓ Per-role include/exclude/mask | ✕ |
| Row-Level Security | ✓ CEL expressions, app layer | ✓ Postgres-native RLS |
| Validation Engine | ✓ CEL-based, schema-driven | ✕ Check constraints only |
| PII Classification & Masking | ✓ Built-in, per-role strategies | ✕ |
| GDPR/CCPA Erasure | ✓ One-call subject erasure | ✕ Manual implementation |
| Purpose-Based Access Control | ✓ | ✕ |
| Auto-Generated Forms | ✓ JSON Schema + UI Schema | ✕ |
| App Builder | ✓ Pages, nav, themes | ✕ |
| Eject to Code | ✓ React / Expo | ✕ |
| Multi-Tenancy | ✓ First-class, header-based | ~ DIY via RLS policies |
| CDC / Event Streaming | ✓ Built-in with cursors | ✓ Realtime subscriptions |
| Audit Trail | ✓ Field-level diffs | ✕ |
| Differential Privacy | ✓ Epsilon-budget tracking | ✕ |
| Authentication | ✕ BYO auth provider | ✓ GoTrue, social logins |
| File Storage | ✕ | ✓ S3-compatible storage |
| Edge Functions | ✕ | ✓ Deno-based |
When to choose Supabase
- ▶ You need a complete backend-as-a-service with auth, file storage, and edge functions all in one platform.
- ▶ You're building a consumer app where user authentication and social logins are central to the experience.
- ▶ Row-level security is sufficient for your access control needs -- you don't need per-field visibility rules.
- ▶ You want a Firebase-like developer experience with a generous free tier and managed hosting.
- ▶ Privacy compliance (PII masking, GDPR erasure, differential privacy) is not a core requirement for your use case.
When to choose ToasterDB
- ▶ You need field-level security -- not just which rows a user can access, but which fields within those rows they can see or edit.
- ▶ Your product handles sensitive data and you need PII classification, automatic masking, GDPR erasure, and audit trails out of the box.
- ▶ You want a schema-driven validation engine so your business rules are defined once and enforced across every access path.
- ▶ You're building a multi-tenant B2B SaaS product and need automatic tenant isolation, not hand-rolled RLS policies.
- ▶ You want to go from schema to working app with auto-generated forms and an app builder -- then eject to React or Expo when you're ready.
The bottom line
Supabase is a broad backend platform -- auth, storage, realtime, and edge functions. It's an excellent choice when you need all of those services in one place. ToasterDB is narrower but deeper: it focuses entirely on the data layer and gives you field-level security, privacy compliance, validation, forms, and an app runtime that Supabase doesn't offer. If your product's core complexity is in data access rules and compliance, ToasterDB handles it at the schema level instead of leaving it to application code.
Go deeper on the data layer.
Field-level security, privacy, and a full app runtime on your PostgreSQL.