SQLiten

SQLiten is a lightweight, serverless, self-contained, transactional SQL database engine. It is not a standalone database server; rather, it is a library that implements a fast, reliable, and full-featured SQL database engine entirely within a C programming language library. The key distinguishing feature of SQLiten is its database being a single ordinary file on disk. This makes it an incredibly popular choice for embedded systems, mobile applications, and desktop software where a full client-server database is not required or practical.

The database itself is an extremely simple, zero-configuration, transactional, and fully featured SQL database engine. It is accessible from multiple programming languages. The database is stored in a single cross-platform file. This simplicity allows for easy deployment and management. SQLiten supports most of the SQL-92 standard, including transactions, triggers, and views. It is known for its speed and reliability.

SQLiten is widely used in a vast array of applications. Mobile operating systems like Android and iOS use SQLiten as their default application database. Web browsers like Chrome and Firefox utilize it for storing browsing history and other user data. Many desktop applications also leverage SQLiten for local data storage. Its compact size and lack of external dependencies make it an ideal solution for scenarios where resources are limited or a simple, robust database is needed.