MongoDB

MongoDB is a popular, open-source NoSQL database that stores data in a flexible, JSON-like format. Unlike traditional relational databases, MongoDB allows for the storage of unstructured or semi-structured data, making it ideal for modern applications with variable data schemas. It offers scalability, high performance, and horizontal scalability through sharding, allowing applications to handle large volumes of data with ease. MongoDB supports powerful querying, aggregation, and indexing features, and it integrates seamlessly with various web frameworks, particularly those built on Node.js. Its flexibility and ease of use make it an ideal choice for startups and large-scale enterprise applications alike.