Supabase

This Supabase review covers what the platform is used for, its key features, Supabase pricing, how it compares with Firebase and other backends, and where it falls short. Every Supabase project is a full Postgres database with authentication, file storage, realtime updates, edge functions and auto-generated APIs around it. You can work in the dashboard, write SQL, or call the client libraries from JavaScript, Flutter, Swift and Kotlin, so the same backend serves web, iOS and Android apps. Supabase is open source and can be self-hosted, so the data model and the code are not locked to one vendor.

What is Supabase used for?

Supabase is used as the backend for web and mobile apps: SaaS products, internal tools, marketplaces, client portals, AI apps and prototypes that later go to production. Because the database is Postgres, it suits relational data with joins, transactions and a clear schema, rather than denormalized data spread over documents.

It is also a popular backend for low-code and AI app builders. Front ends such as FlutterFlow, Lovable, WeWeb and Bubble connect to Supabase for the data, users and files, while the builder handles the interface. Teams that start with sample data in a prototype can keep the same project when real users arrive, and developers can integrate the same database with their own code and client apps later.

Key features

• Postgres database: a dedicated Postgres database per project with SQL, transactions, extensions, backups and point-in-time recovery on paid plans. The table editor in the dashboard lets you add, edit and delete records and run a query without writing code.
• Auto-generated APIs: a REST API and a GraphQL API are generated from your schema, so the client can query tables and records directly without extra backend services.
• Supabase Auth: email and password, magic links, phone login and OAuth providers, with SSO, SAML and OIDC on Pro and Enterprise (Supabase vs Firebase).
• Row Level Security: RLS policies in Postgres decide which rows each user can read or write, so access control lives in the database.
• Storage: file storage for images, documents and video, with the same access rules as the database.
• Realtime: clients can subscribe to database changes through Postgres logical replication.
• Edge Functions: serverless functions on Deno for backend logic such as webhooks, payments or AI calls, deployed close to users.
• Vector and AI: the pgvector extension stores embeddings next to your relational data.
• Scale: read replicas and larger compute sizes for production workloads.

Supabase pricing

Supabase prices by plan plus usage. The figures below come from the Supabase pricing page as of September 2026.

• Free: $0 a month. 2 active projects, 500 MB database, 1 GB file storage, 5 GB egress and 50,000 monthly active users. Free projects are paused after one week of inactivity.
• Pro: $25 a month per organization. 100,000 monthly active users, 8 GB disk per project, 100 GB file storage, 250 GB egress and $10 a month in compute credits, which covers one Micro instance.
• Team plan: $599 a month. The Pro usage limits plus SOC 2 and ISO 27001 reports, with HIPAA as an add-on.
• Enterprise: custom pricing and limits.

Paid plans are billed for usage above the included amounts: for example $0.00325 per monthly active user above 100,000, $0.125 per GB of extra disk and $0.09 per GB of extra egress. Supabase does not charge per API request.

The cost surprise to check is compute. Each project on a paid plan runs on its own compute instance, and the $10 credit covers only one small instance. A second project, or a bigger instance for performance, adds to the bill. Spend caps are on by default on Pro, which stops overage charges but can limit the app when it hits a quota; turning them off means you pay as you grow.

Supabase vs Firebase: Postgres database or NoSQL

Supabase is often called the open-source alternative to Firebase. The main difference is the database: Supabase uses Postgres, a relational SQL database, while Firebase uses Cloud Firestore, a NoSQL document store. With Supabase you model relations with foreign keys and joins; with Firestore you denormalize or run several queries. Firebase charges per read, write and function call, while Supabase charges by plan, storage, egress and compute. Firebase is proprietary and runs only on Google Cloud; Supabase runs on AWS and can be self-hosted. Supabase generates both a REST and a GraphQL API from the schema of every project. Firebase stays stronger for offline sync in mobile apps and its tight link with Google services. Supabase publishes open-source tools to migrate Firebase Auth users, Firestore data and Cloud Storage files.

Self-hosting, open source and scalability

Supabase is open source under permissive licences, and the whole stack can run on your own servers with Docker or on your own cloud (Supabase vs Firebase). The hosted platform runs on AWS in several regions; for scalability you choose a region per project, add read replicas and move to larger compute sizes. Self-hosting on AWS, another cloud or your own system gives full control over data location and cost, but you take over upgrades, backups and security yourself. Some hosted features, such as the managed dashboard extras and support, are simpler on the cloud plans.

Backend logic with edge functions and serverless functions

Most apps need backend logic that should not run in the browser: payment webhooks, sending email, calling an AI model or syncing with another system. Supabase covers this with edge functions, TypeScript functions on Deno that you deploy from the command line, and with database functions and triggers written in SQL. Edge functions can integrate with third-party APIs and keep secret keys on the server. For heavier jobs, Postgres extensions such as cron schedules and queues run inside the database itself.

Where Supabase shines — and where it falls short

Strengths:

• A real Postgres database with SQL, transactions and extensions, not a proprietary data store.
• Auth, storage, realtime, edge functions and APIs in one project.
• Open source and self-hostable, which reduces lock-in.
• Predictable pricing with no per-request charges and a useful free tier to evaluate the platform.
• A large open-source community and first-class support in many low-code platforms and front ends.

Trade-offs:

• You need to understand SQL and RLS policies; a mistake in a policy can expose data.
• Free projects pause after a week without activity.
• Compute is billed per project, so many small projects add up.
• Multi-region setups are limited compared with AWS or Google Cloud services.
• Edge Functions use Deno, which is new for teams used to Node.js.

How Supabase compares

• Hasura: a GraphQL engine you put on top of your own Postgres database.
• NocoDB and Baserow: spreadsheet-style interfaces for non-developers, rather than an app backend.
• Airtable: a no-code database for teams, with record limits and per-seat pricing.
• Bubble: a full-stack no-code builder with its own built-in database instead of a separate backend.

Is Supabase worth it?

Supabase is worth it for teams that want a production-ready Postgres backend without running servers, and for low-code builders that need a real database behind their front end. The free plan is enough to build and test, and Pro at $25 a month covers most early products. It is a weaker fit for teams without any SQL knowledge, for apps that depend on offline-first mobile sync, and for very large multi-region setups. If you want help with the data model, RLS policies or a migration from Firebase, backend developers and low-code agencies on LowCodeDevs can take it on.

Sources

• Supabase pricing: plans, included usage, overage prices and spend caps.
• Supabase vs Firebase: database model, auth, edge functions, open source and migration tools (vendor comparison).
• What is Supabase?, Bejamas: use cases and trade-offs from an agency's view.
• Supabase alternatives, Cotera: alternative backends. Its claim that self-hosting requires working with Supabase's enterprise team conflicts with Supabase's documentation, which describes self-hosting with Docker.