07/06/2026
"Should I use Postgres or SQLite?"
One of the most common questions I hear from founders, tech startups ,
new developers, and picking wrong is one of the most common mistakes.
Here's the distinction that actually matters: SQLite isn't a server at all.
It's literally just a file you interact with using SQL. That makes it fast, lightweight, and easy to embed directly inside an application which is exactly why it's everywhere.
iMessage uses it locally to store your messages.
It ships on every Android device, every Mac, every iPhone, and most Windows installations.
SQLite might be the most widely deployed database in the world, and most people have never heard of it.
Postgres is a different animal. It runs on its own dedicated server, scales up and down independently, handles transactions, and is built to manage huge volumes of concurrent requests. It's what you reach for the moment your data needs to be shared a real backend serving many users at once.
The decision rule is simpler than it sounds: need a fast, lightweight, local database? SQLite. Need a shared database for your backend? Postgress.
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