7 Best Supabase Alternatives for 2025 (With Detailed Comparisons)

Supabase is one of the best open-source BaaS platforms available. It's built on PostgreSQL, offers generous free tiers, and has a passionate developer community. But there are legitimate reasons to consider alternatives:

- You need NoSQL flexibility — Supabase is PostgreSQL-only. If your data model is document-oriented, you'll fight against the grain. - You want zero vendor lock-in — Even though Supabase is open-source, migrating away means rewriting all your API calls. - You need multi-tenant isolation — Supabase doesn't have built-in multi-tenancy for agencies or SaaS platforms. - You want a simpler API — Supabase's PostgREST API is powerful but has a learning curve for filtering and relationships. - You need to support multiple providers — Some projects require Firebase for one thing and Supabase for another.

Let's look at the best alternatives and when each one makes sense.

Firebase predates Supabase and remains the most widely used BaaS platform. Its strengths are real-time data sync, excellent mobile SDKs (iOS, Android, Flutter), and deep Google Cloud integration. Firestore's offline persistence is unmatched for mobile apps that need to work without an internet connection.

Firebase is the better choice if you're building a real-time chat app, a collaborative tool, or a mobile-first product that needs offline support. It's the worse choice if you need relational data, SQL queries, or predictable pricing.

Pricing: Free tier available. Pay-as-you-go (Blaze Plan) based on reads, writes, storage, and function invocations.

Appwrite is a self-hosted BaaS that you run on your own servers or VPS. It provides auth, databases, storage, functions, and messaging through a clean REST API. If data sovereignty or regulatory compliance requires you to host everything yourself, Appwrite is the strongest option.

Appwrite uses MariaDB internally and provides a document-based data model (not raw SQL). Its client SDKs cover web, Flutter, iOS, Android, and server-side languages.

Pricing: Free and open-source for self-hosted. Appwrite Cloud offers managed hosting starting at $15/month.

PocketBase is a single-binary BaaS written in Go. You download one file, run it, and you have auth, a real-time database, and file storage. It uses SQLite under the hood, which means zero external dependencies.

PocketBase is perfect for personal projects, small tools, and prototypes where simplicity matters more than scale. It's not designed for high-traffic production apps, but for the right use case, nothing is faster to set up.

Pricing: Completely free and open-source. You host it yourself.

Nhost is built on PostgreSQL (like Supabase) but adds Hasura for instant GraphQL APIs. If your frontend is GraphQL-heavy (common with React + Apollo or Next.js), Nhost provides a more natural API than Supabase's REST endpoints.

Nhost also includes auth (based on Hasura Auth), storage, and serverless functions. It's the closest direct competitor to Supabase in terms of architecture.

Pricing: Free tier with 1GB database and 1GB storage. Pro plan starts at $25/month.

Hasura turns any PostgreSQL database into an instant GraphQL (and REST) API. It's not a full BaaS — it doesn't handle auth or file storage natively — but if you already have a database and need a powerful API layer, Hasura is hard to beat.

Hasura excels at complex data relationships, real-time subscriptions via GraphQL, and role-based access control. Pair it with Auth0 or Clerk for auth, and S3 for storage, and you have a custom BaaS.

Pricing: Free for the open-source engine. Hasura Cloud starts at $99/month for production use.

Directus wraps any SQL database with a REST and GraphQL API, plus a visual admin panel for non-technical users. If your project needs both developer APIs and a content management interface (for marketers, editors, or ops teams), Directus fills both roles.

It supports PostgreSQL, MySQL, SQLite, MariaDB, MS SQL, and OracleDB. The auto-generated admin UI is its killer feature.

Pricing: Open-source self-hosted is free. Directus Cloud starts at $15/month.

ShipStack is a BaaS aggregator rather than a BaaS provider. Instead of replacing Supabase, it sits on top of it (or Firebase, or Upstash) and provides a unified REST API. You get /api/auth, /api/db, and /api/storage endpoints that work identically regardless of which provider is behind them.

This approach solves the biggest problem with every other option on this list: vendor lock-in. With ShipStack, you can start with Supabase and switch to Firebase later by changing one environment variable. No code changes, no migration scripts.

ShipStack also adds multi-tenant management, per-tenant rate limiting, and usage analytics — features that none of the other alternatives provide out of the box.

Pricing: Free for 1 project and 5,000 API calls/month. Launch ($19/mo), Scale ($49/mo), Enterprise (custom). You bring your own provider credentials — ShipStack doesn't markup provider costs.

Best for: Agencies managing multiple clients, SaaS platforms needing multi-tenancy, teams that want provider flexibility, and developers who don't want to bet on a single vendor.