Why we use Supabase for small web application backends
Supabase is an open-source backend platform built on PostgreSQL. It provides a database, authentication, file storage, and a real-time API out of the box. For small web applications with straightforward data requirements, it removes a significant amount of backend infrastructure work. This is an honest look at where it fits and where it doesn't.
What Supabase handles well
Authentication is the most immediately useful part. User signup, login, password reset, and session management are handled by Supabase Auth, which integrates with the database so that row-level security policies can be tied directly to the logged-in user. For a client portal or an internal dashboard, this removes several weeks of backend work.
The database is standard PostgreSQL, which means any developer familiar with SQL can work with it. Supabase adds a REST and GraphQL API on top automatically, so the front end can query data without writing custom API endpoints for every operation.
Where a custom backend makes more sense
Complex business logic that doesn't map cleanly to database operations is harder to implement in Supabase. If your application needs to process payments, send transactional emails through a specific provider, or integrate with a third-party API in a non-trivial way, a custom Node backend gives you more control.
Supabase also has a free tier with generous limits, but the pricing at higher usage levels is worth modelling before committing to it for a project that might scale significantly.
How we use it in practice
At Arctic Pixel Hub, Supabase is the default backend for client portals, internal tools, and small SaaS applications where the data model is relatively straightforward. For projects with complex integrations or high transaction volumes, a custom Node backend is the better choice. The decision is made at the scoping stage, not after the build has started.
If you're planning a web application and want to understand which backend approach suits your requirements, that's a useful thing to cover in the initial brief.