A database that serves a handful of requests a day can save money by suspending compute between visits. For a busy checkout, the delay when that database wakes up may matter more than the savings. If you’re comparing serverless databases in 2026, start with three questions about Supabase, Neon and PlanetScale Postgres. What happens when traffic stops? What will the database cost to run? How can you test it before launch?

What makes a Postgres database serverless?

Compute runs queries and storage holds the data. Autoscaling adjusts compute capacity as demand changes. Scale-to-zero suspends compute during idle periods while the data stays in storage. The next request wakes the database and may take longer than a query against an active instance.

Neon can wake automatically on the next request. Supabase pauses Free projects after a week of low activity and restores them through the dashboard. Paid Supabase projects keep their dedicated compute running. PlanetScale Postgres uses a provisioned cluster that stays online between requests.

Supabase vs. Neon vs. PlanetScale Postgres

All three run PostgreSQL. The differences show up when you add app services, create an isolated test environment or decide how the database should handle a node failure.

Supabase for an app that needs an integrated backend

A booking app can use Supabase Auth for customer accounts, Storage for uploads and Realtime for availability updates. A preview branch gets its own database, app services and credentials. It starts without production records or files by default. A developer can populate it with sample bookings and test a database change alongside the sign-in and upload flows.

Neon for intermittent traffic and database branches

Neon can suspend compute between bursts of activity. Paid plans can keep eligible compute active when wake-up latency would affect the app. A copy-on-write branch can start with the parent’s data without making a full physical copy. Changes stay on the branch, so a developer can test a migration against representative data without altering the original. Neon also offers managed authentication, object storage and functions. Its Realtime feature is in beta.

PlanetScale Postgres for a provisioned cluster

PlanetScale offers a single node for development or light production use. Its high-availability configuration runs a primary and two replicas across three availability zones. A team rehearsing a migration can create a branch from a production backup and run the change there before touching the live database.

Serverless databases in 2026: Costs for intermittent and steady traffic

Keeping compute active can raise the bill even when the database stores the same amount of data. At prices checked November 13, 2026, Neon Launch charges $0.106 per compute-unit hour and $0.35 per GB-month of database storage. A compute-unit hour measures compute size multiplied by running time.

  • Intermittent traffic. Neon’s example of 140 compute-unit hours and 1 GB of storage comes to $15.19 for compute and storage.
  • Always-on traffic. At 0.25 compute units for 730 hours with the same 1 GB, Neon Launch comes to $19.70. One Supabase Pro project on Micro costs $25/month before extras. PlanetScale Postgres starts at $5/month for a single node without high-availability replicas.

These figures cover different capacities and availability configurations. Estimate costs for the region and replica setup the app needs. Include outbound data transfer, extra branches and how far back the database needs to be restorable.

What to test before choosing a Postgres provider

Run a representative query from the region where the app will run. For a database that can suspend, time the first request after an idle period and compare it with a request while compute is active. Restore a backup into an isolated environment and check what data it contains before sharing access.

Test connection settings under load too. A pool lets short-lived functions reuse a smaller set of database connections. Run the app and its schema migrations with their intended connection settings. Supabase’s shared pooler, for example, doesn’t support prepared statements in transaction mode. Check whether the app’s database driver uses them before choosing that mode.

Conclusion

Choosing among serverless databases in 2026 starts with how the app runs. Shortlist Neon for intermittent traffic or frequent database previews, Supabase for an app that can use its integrated backend and PlanetScale Postgres when replica configuration matters. Test the workflow that will drive the decision, whether it’s a request after idle time, a full app preview or a backup restore.

FAQ

Can I use Supabase or Neon for free?

Yes. Supabase Free includes a 500 MB database and pauses projects after a week of low activity. Neon Free includes 1 GB of database storage and 100 compute-unit hours per project each month.

Can Neon stay online between requests?

Yes. Paid plans let you disable scale-to-zero on eligible compute. The Free plan’s five-minute idle timeout is fixed.

Does a database branch copy production data?

Supabase branches start without production data by default. Neon can clone a parent branch and PlanetScale Postgres can create a branch from a backup.

Does PlanetScale still support MySQL?

Yes, through its MySQL-compatible Vitess service. PlanetScale also offers standard Postgres clusters and Neki, a separate sharded Postgres product in platform preview.