How to Choose a Database for Your App (2026)
Postgres. That is the short answer. Here is the long answer - and what happens when you pick wrong.
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The short answer is Postgres
If you are building a web app and do not have a specific reason to choose something else, use PostgreSQL. It is free, it runs everywhere, every tool integrates with it, and it handles everything from a side project to millions of users.
That is genuinely the advice. The rest of this article explains why, what the alternatives are, and what happens when you make this decision by accident instead of on purpose.
Why this is a day-one decision
Your database is the one piece of infrastructure you cannot easily swap later. You can change your frontend framework in a weekend. You can switch hosting providers in a day. But migrating a live database with real user data to a different system is weeks of careful work with significant risk of data loss.
The ORM (the code layer that talks to your database) can be changed more easily. We started one project with Prisma and another with Drizzle - different ORMs, different patterns, but both talking to Postgres underneath. The ORM choice is reversible. The database choice is not.
Choose your database before your first migration. Changing it later means migrating every table, every relationship, and every query in your app - while real users are depending on it.
Your actual options
The database market has split into managed platforms and self-hosted solutions. Both use the same underlying technology (usually Postgres), but the experience and cost are very different.
Managed database platforms
Supabase is the most popular choice for new projects in 2026. It gives you a Postgres database plus auth, file storage, realtime subscriptions, and edge functions in one package. The free tier is generous (500MB database, 50K monthly active users for auth). The catch: the Pro plan is $25/month, and it is easy to hit limits on the free tier with file storage.
Neon offers serverless Postgres that scales to zero - you only pay when queries are running. Free tier gives you 0.5GB storage and 190 compute hours/month. Good for apps with intermittent traffic.
PlanetScale was the developer favourite for MySQL, but they removed their free tier in 2024. Still good if you specifically need MySQL, but Postgres has become the default for a reason.
Turso uses libSQL (a SQLite fork) and is interesting for edge computing. Free tier is generous (9GB storage, 500 databases). Different from Postgres - worth considering if your app is read-heavy and you want data close to users globally.
Self-hosted: Postgres on your own server
If you have a VPS, Postgres is already there or a single command away. Zero monthly cost beyond the server you are already paying for. Full control over backups, configuration, and data location.
We run Postgres on the same VPS as our applications. For a startup with under 10,000 users, this is more than enough. The database and the app are on the same machine, so there is no network latency between them.
The trade-off: you are responsible for backups, updates, and recovery. If something goes wrong with a managed platform, their team fixes it. If something goes wrong with your self-hosted database, you fix it.
For most solo founders, the practical advice is: start with a managed platform if you want simplicity, or self-host on your VPS if you want to save money and learn. Both approaches use Postgres, so you can migrate between them later.
Prisma vs Drizzle vs raw SQL
An ORM (Object-Relational Mapper) is the code layer between your app and your database. It lets you write JavaScript or TypeScript instead of raw SQL queries.
Prisma was the default for years. It generates types from your schema, has excellent documentation, and handles migrations well. The downside: it adds a binary to your project, the generated queries can be inefficient for complex operations, and the company has shifted focus toward their cloud platform.
Drizzle is the newer alternative. Lighter, faster, more SQL-like syntax. It does not add a binary - it is just a TypeScript library. The community is growing fast and the DX is excellent for developers who are comfortable thinking in SQL.
We use both across different projects. The honest take: for a new project in 2026, Drizzle with Postgres is the path of least resistance. But Prisma still works fine and has a larger ecosystem of examples and tutorials.
Raw SQL is always an option. If your app has 5 queries, you do not need an ORM at all.
Schema decisions you will live with forever
A few database design decisions are extremely painful to change after you have real data:
UUIDs vs auto-incrementing IDs: UUIDs are better for distributed systems and do not leak information about your total user count. Auto-increment is simpler and slightly more performant. Pick one and use it everywhere.
Soft deletes: add a deleted_at timestamp column to every user-facing table from day one. If you hard-delete data, it is gone forever. No undo, no audit trail, no GDPR compliance.
Multi-tenancy: if there is any chance your app will serve multiple organisations, add a tenant ID to every table now. Retrofitting multi-tenancy into a live database is often a complete rewrite.
Timestamps: add created_at and updated_at to every table. You will need them for debugging, auditing, and sorting. They cost nothing to add now and are annoying to backfill later.
What we actually use
PostgreSQL everywhere. Drizzle ORM on newer projects, Prisma on our oldest project (we are considering migrating it to Drizzle for consistency). The database runs on our VPS alongside the applications.
We backup daily at the project level and weekly at the VPS snapshot level. We have never needed to restore from backup, but they exist for the day we do.
If we were starting today with zero knowledge, we would use Supabase for the first project (fastest to get running, good free tier) and then self-host Postgres once we understood what we were doing. Supabase teaches you Postgres without requiring you to manage it.
Unless you have a specific reason not to. The ORM matters less than the database. The schema decisions you make on day one matter more than either.
Frequently Asked Questions
Probably not for a typical web app. MongoDB is good for unstructured data and specific use cases, but Postgres handles JSON data well too. The ecosystem around Postgres (tools, ORMs, managed platforms) is larger and better supported in 2026.
Yes, essentially. Supabase gives you a managed Postgres database plus auth, file storage, and realtime features. The database itself is standard Postgres - you can export it and run it anywhere.
Not at startup scale. Running Postgres on the same VPS as your app is fine for thousands of users. You only need a separate database server when your app and database are competing for resources.
If you use a managed platform, they handle it. If you self-host, pg_dump on a daily cron job to an off-site location. Test your restore process at least once - a backup you cannot restore is not a backup.