MongoDB

MongoDB is a high-performance, document-oriented NoSQL database. Instead of storing data in rigid tables and rows (like a relational database), it stores data in flexible, JSON-like “documents” within “collections.” This “schema-less” model allows developers to store and combine data of any structure easily and dynamically change the data model (schema) without application downtime. It’s built on a distributed scale-out architecture, making it highly scalable and popular for modern, data-intensive applications.