MongoDB is a popular open-source NoSQL database management system that is designed to store and manage unstructured data. Unlike traditional SQL databases that rely on a rigid tabular structure, MongoDB uses a flexible document model that allows for easy scalability and adaptability to changing data structures.
MongoDB stores data in JSON-like documents, which can contain nested arrays and objects, making it ideal for handling complex and diverse data types. It also provides powerful querying and indexing capabilities, including support for geospatial queries and full-text search.
MongoDB is often used in modern web and mobile applications, as well as big data and real-time analytics environments, due to its ability to handle large volumes of data and scale horizontally across multiple servers.
