Quick verdict
| If you want… | Pick |
|---|---|
| Open-source Postgres, no lock-in | Supabase |
| Realtime, offline-first mobile | Firebase |
| Self-hostable all-in-one | Appwrite |
| Dead-simple single-file backend | PocketBase |
| Predictable pricing at scale | Supabase / self-hosted |
The best backend-as-a-service platforms, ranked
Built on standard PostgreSQL with auth, storage, realtime, edge functions, and auto-generated APIs layered on top. Open-source and self-hostable, so your data stays portable and there's no lock-in. Relational SQL, row-level security, and predictable pricing make it the strongest all-round choice for most new apps.
Best for: relational apps, SQL-comfortable teams, anyone avoiding lock-in.
Google's mature BaaS, built for realtime, offline-first mobile apps. Its NoSQL document databases and SDKs handle local caching and sync with little code — still the benchmark for chat and collaborative mobile apps. The trade-offs are proprietary lock-in and per-operation pricing that can spike at scale.
Best for: realtime and offline-first mobile apps, deep Google integration.
An open-source BaaS designed to be self-hosted from day one, bundling databases, auth, storage, functions, and messaging behind clean SDKs. A great fit if you want Firebase-style convenience but on your own infrastructure with no vendor lock-in. Also offers a managed cloud option.
Best for: self-hosted all-in-one backends, teams wanting Firebase-like DX without Google.
An entire backend — database, auth, file storage, admin UI, and realtime — in a single self-hosted binary built on SQLite. Astonishingly easy to deploy and perfect for small-to-medium apps, prototypes, and side projects. Less suited to very high scale, but unbeatable for getting a real backend running in minutes.
Best for: prototypes, side projects, small apps, single-binary simplicity.
SQL vs NoSQL — the core split
Your data shape should drive the choice. Supabase (Postgres), Appwrite, and PocketBase give you structured, relational-friendly data with queries and constraints; Firebase's NoSQL document model is schema-flexible and superb for realtime but awkward for relationships and complex queries. Pick relational unless your app is genuinely document-shaped and realtime-heavy. See Supabase vs Firebase for the deep dive.
Managed vs self-hosted
- Managed (Firebase, Supabase Cloud, Appwrite Cloud): zero ops, fastest start, usage-based pricing that can grow.
- Self-hosted (Supabase, Appwrite, PocketBase): full control, fixed server cost, no lock-in — run it on a cloud VPS or homelab.
- Lock-in note: Supabase, Appwrite, and PocketBase are open-source and portable; Firebase is proprietary.
Watch the pricing model
Firebase charges per database operation, which is cheap at small scale but can spike unexpectedly with traffic or inefficient queries. Supabase and the self-hosted options bill on compute or your own server cost, which is more predictable. Model your read/write patterns before committing, especially on Firebase.
Frequently Asked Questions
What is the best backend-as-a-service in 2026?
Supabase is the best all-round choice with open-source Postgres and no lock-in. Firebase is best for realtime mobile, Appwrite for a self-hostable all-in-one, and PocketBase for radical simplicity in a single binary.
Supabase or Firebase?
Supabase for relational data, SQL, portability, and predictable pricing; Firebase for realtime, offline-first mobile apps and deep Google integration. The decision usually follows your data model — see Supabase vs Firebase for details.
Can I self-host a BaaS?
Yes. Supabase, Appwrite, and PocketBase are open-source and self-hostable, giving you control and no lock-in. Firebase is proprietary and cannot be self-hosted. Self-hosting runs well on a small cloud VPS or homelab server.
What's the simplest BaaS to start with?
PocketBase — it's a single binary with database, auth, storage, and admin UI included, deployable in minutes. It's ideal for prototypes and small apps, though less suited to very high scale.
Why do people worry about Firebase costs?
Firebase prices per database operation, so bills can spike sharply as traffic grows or with inefficient queries. Supabase and self-hosted options use more predictable compute or server pricing. Always model your usage first.