About SQLite
SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured SQL database engine. It is a widely used embedded database built into mobile devices and many applications to provide local data storage with no server.

Key Features
For developers needing embedded local storage, SQLite provides a compact, self-contained SQL engine that runs inside your app across mobile and desktop environments, with no server required:
Embeddable C API
A self-contained library that can be linked into applications without external services.
Lightweight footprint
Small footprint with fast performance suitable for devices with limited resources.
ACID transactions
Ensures data integrity with reliable transactional behavior.
Cross-platform, stable file format
Portable database files with long-term compatibility across systems.
Summary
Best for mobile developers, desktop applications needing offline data storage, and products requiring a reliable embedded database.