Supabase
Supabase flips the MongoDB decision on its head by pairing a standard Postgres database with a full backend toolkit, so teams get more than just a datastore. Instead of assembling authentication, file storage, realtime updates, and server-side logic around the database, Supabase bundles them into a cohesive platform that can replace a lot of backend glue work.
A major differentiator is Row Level Security, which makes multi-tenant access control a first-class database primitive rather than an application-layer afterthought. For products where permissions are complex and user-generated data needs strict isolation, putting policies next to the tables can be simpler to reason about than custom middleware rules.
Because it is “real Postgres,” Supabase also appeals when the data model benefits from SQL joins, transactions, and mature relational tooling. It’s typically a better fit than MongoDB when portability matters, since schema, migrations, and data remain compatible with the broader Postgres ecosystem.
The trade-off is that leaning into a platform means learning its modules and operational model, and some teams eventually replace certain built-ins as they outgrow the defaults. Still, it’s a strong alternative when the goal is to ship quickly while keeping a conventional relational core.
Best for
Best for small teams building SaaS products that want Postgres plus built-in backend services.
Standout features
- ✓Hosted Postgres with SQL migrations
- ✓Row Level Security policies
- ✓Auth, Storage, and Realtime included
- ✓Local-first development workflow
- ✓Edge Functions for server logic
