SQLitevs
PostgreSQL

PostgreSQL: Full-featured relational database with multi-user support and superior concurrency handling
Small, fast, self-contained SQL database engine
As of 30 August 2026, SQLite is free to use. SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured SQL database engine. Softwr lists it under Databases. SQLite is made by SQLite Consortium, launched in 2000, available on Linux, macOS, Windows, iOS.
Overview
SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured SQL database engine. SQLite is the most used database engine in the world, built into all mobile phones and most computers, with billions of copies deployed worldwide.
The honest half
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about SQLite.
Cross-shopped
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.

PostgreSQL: Full-featured relational database with multi-user support and superior concurrency handling

MariaDB: Open-source relational database with multi-user capabilities and advanced features

DuckDB: Embedded SQL OLAP database designed for analytical queries with better performance on larger datasets
Pricing
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Public Domain
Free
Capabilities
Serverless Operation
Zero Configuration
Single File Database
Cross-platform
Full SQL Support
ACID Compliance
Self-contained
Browser Storage
Integration with Browser Storage
Mobile Apps
Integration with Mobile Apps
Electron
Integration with Electron
Python sqlite3
Integration with Python sqlite3
better-sqlite3
Integration with better-sqlite3
Answered, with sources
Each answer names the page it came from, so you can check it rather than take our word for it.
Yes, SQLite is open source and in the public domain. The complete source code and binaries are free to download and use for any purpose without restrictions.
SourceSQLite is a self-contained, serverless SQL database engine that reads and writes directly to disk files. It requires no separate server process and runs within your application, making it ideal for embedded systems and local storage.
SourceSQLite does not support true multi-user concurrency. Only one process can write to the database at a time, and it lacks user management and access control features. It is designed for small to medium projects, not enterprise applications with many concurrent users.
SourceSQLite can work for single-server web applications with modest concurrency needs. However, it lacks features like user management, granular security, and sophisticated query optimization needed for large-scale applications.
SourceBehind it
Keep looking
MIT-licensed analytical SQL database that runs inside your process, with no server, no dependencies and one writer at a time.
The world's most complete, reliable, and secure database
Live context layer for AI agents using real-time SQL transformations
Cross-platform database IDE from JetBrains for SQL and NoSQL databases
Fully managed relational database service for MySQL, PostgreSQL, and SQL Server
Enterprise-grade relational database management system
The AI-powered database built for demanding enterprise workloads
Apache 2.0 vector and full-text search engine that runs as an embedded library, a single server or a distributed cloud service.
SQLite-lineage database platform for running very large numbers of small per-tenant databases, with an MIT-licensed engine.
Attribute-based access control and masking applied inside Snowflake, Databricks and BigQuery
Time-series database built on PostgreSQL for real-time analytics
The world's most complete, reliable, and secure database
Live context layer for AI agents using real-time SQL transformations
SQLite-lineage database platform for running very large numbers of small per-tenant databases, with an MIT-licensed engine.
Softwr does not host reviews and shows no star rating for SQLite, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
What people switch to, and what they give up
Every tier, and where the cost actually lands
Put it head to head with anything we hold
Its rating, and an embed for your own site
Industrial process historian with published per-tag pricing and no client licence fees
Per tag band per yearNetApp-owned managed service for Cassandra, Kafka, OpenSearch, PostgreSQL and Cadence with a bring-your-own-cloud model
quoteErlang MQTT broker for large IoT fleets, relicensed to BSL with production free use limited to one node
Per month by connection and session volumeAttribute-based access control and masking applied inside Snowflake, Databricks and BigQuery
quoteMPP analytical database with a MySQL wire protocol and sub-second aggregation on wide tables
Open source, no licence feeStreaming database that maintains incremental materialised views in SQL instead of Flink jobs
Per RisingWave Unit hourCentralised data access governance from the creators of Apache Ranger, now rebranding as Trust3 AI
quoteThe Meta-lineage distributed SQL query engine, distinct from the Trino fork
Open source, no licence fee