Local Database
A local database is a database system that runs on the same machine as the application accessing it, storing data locally rather than on a remote server. It is typically used for offline data storage, caching, or small-scale applications where network latency and connectivity are concerns. Examples include SQLite, IndexedDB, and Realm, which provide embedded storage solutions.
Developers should use a local database when building applications that require offline functionality, such as mobile apps or desktop software, to ensure data persistence without internet access. It is also ideal for prototyping, testing, or small projects where simplicity and low overhead are prioritized over scalability and multi-user access. Use cases include caching API responses, storing user preferences, or managing local state in single-user applications.