PostgreSQL vs SQLite

Updated November 2026 · AppBreakup editorial

PostgreSQL

Free, open-source object-relational database known for reliability, standards support and extensions.

Open sourceSelf-hostable

Visit PostgreSQL PostgreSQL profile

SQLite

Public-domain, serverless SQL database engine that stores a whole database in one file.

Open source

Visit SQLite SQLite profile

The short answer

PostgreSQL is a database server for apps where many users read and write at once; SQLite is an engine that runs inside your app and keeps the whole database in one file. Choose SQLite for mobile and desktop apps, prototypes and small sites with no server to manage. Choose PostgreSQL when you need concurrent writes, user permissions and network access.

PostgreSQL or SQLite: our take

The core difference is architecture. PostgreSQL runs as a separate server that applications connect to over the network, with user accounts, permissions and full ACID transactions across many concurrent clients. SQLite has no server at all: the library runs inside the application, and a complete database with tables, indexes, triggers and views lives in a single ordinary file you can copy between machines. There is nothing to install or configure, and transactions stay safe even after a power cut.

That design shapes what each one is good at. SQLite ships inside phones, browsers, desktop apps and countless other products, and suits local app storage, prototypes, small websites and data analysis on a laptop. Its limits come from the same design: only one writer at a time, and no built-in network access or user permissions. PostgreSQL handles many writers, supports all standard isolation levels including serializable, table partitioning and parallel queries, and stores JSON/JSONB, arrays, ranges and custom types. Extensions like PostGIS turn it into a geospatial database. The cost is administration: replication, failover and major upgrades take expertise, and heavy load often needs a connection pooler.

Both are free for any use. SQLite is in the public domain, and the project plans support through 2050. It does not accept outside code contributions. PostgreSQL uses the permissive PostgreSQL License and is developed by a global volunteer community rather than one company. Neither includes an official GUI; you pick a separate client, such as DB Browser for SQLite or one of many Postgres tools.

Use SQLite when the database belongs to a single app or device, or when you want to start without running anything. Move to PostgreSQL, self-hosted or through a managed service like Supabase or Neon, when several app servers or many users need to write at the same time, or when you need its richer types and extensions. Many projects start on SQLite and switch to PostgreSQL as they grow.

Choose PostgreSQL if…

Developers and teams who want a free, standards-minded relational database that scales with their app.
You need to host it on your own servers
You need Self-hosted, which SQLite doesn't list
Strong SQL standards support and full ACID transactions
Rich types: JSONB, arrays, ranges, plus PostGIS for maps

Choose SQLite if…

Apps, prototypes and small sites that need a reliable SQL database without running a server
You need iOS and Android, which PostgreSQL doesn't list
Zero configuration: the whole database is one file
Public domain, free for any purpose

What is PostgreSQL?

PostgreSQL, often just Postgres, is an open-source object-relational database that grew out of the POSTGRES project at UC Berkeley in 1986. It is a default choice for many new web apps and the engine behind hosted services such as Supabase and Neon. It is fully ACID-compliant and supports advanced SQL: all standard isolation levels including serializable, table partitioning, parallel queries and a sophisticated planner. Beyond plain tables it stores JSON/JSONB, arrays, ranges, UUIDs and geometric types, and add-ons like PostGIS turn it into a geospatial database. You can define your own types and functions in several languages. PostgreSQL is developed by a volunteer global community rather than one company and released under the permissive PostgreSQL Licence, with packages for Linux, macOS, Windows and the BSDs. It's free to run anywhere, but tuning, replication and upgrades take more hands-on admin work than a managed database.

What is SQLite?

SQLite is a small SQL database engine that runs inside the application that uses it instead of as a separate server. A full database, with tables, indexes, triggers and views, lives in a single ordinary file that can be copied between machines and operating systems. There is nothing to install or configure, transactions stay safe even after a power cut, and the file format is stable, which is why SQLite ships inside phones, browsers, desktop apps, cars and countless other products. It is the default choice for mobile apps, local app storage, prototypes, small websites and data analysis on a laptop. The code is in the public domain, so it is free for any use. Its trade-offs come from the same design: it allows only one writer at a time, has no built-in user accounts or network access, and is not meant for many clients writing concurrently, where PostgreSQL or MySQL fit better. Desktop tools such as DB Browser for SQLite add a GUI.

Side by side

Attribute	PostgreSQL	SQLite
Pricing	Open source	Open source
Open source	Yes	Yes
Self-hostable	Yes	No
Platforms	Linux, macOS, Windows, Self-hosted	Windows, macOS, Linux, iOS, Android
Best for	Developers and teams who want a free, standards-minded relational database that scales with their app.	Apps, prototypes and small sites that need a reliable SQL database without running a server
Status	Active	Active

Verified facts, compared

Facts both apps publish, checked on each vendor's own site.

Fact	PostgreSQL	SQLite
License	PostgreSQL License (BSD/MIT-like)	Public domain