MongoDB is a document-oriented NoSQL database that stores information in JSON format instead of traditional tables. It is one of the most popular options for handling large volumes of data in a flexible and scalable way. Its structure allows information to be stored more naturally for many modern applications, such as social networks, streaming platforms, and e-commerce. Unlike SQL databases, MongoDB does not require fixed schemas, which facilitates the evolution of data without complications. It is ideal for projects that need to handle unstructured information and change its structure over time.