MongoDB is an open source document-oriented NoSQL database system written in the C++ programming language. It manages collections of JSON-like documents by storing them in dynamic schema instead of rows and tables. It was designed to bring parity between speed and scalability of key-value stores and rich functionality of relational databases.

With the advent of Cloud and the highly interactive networking applications, the traffic of users on the servers is ever increasing. Since the data available is increasing continuously, the requirement for servers to manage those data is increasing too. MongoDB aids better management of data and increasing the capacity by adding servers. It brings in flexibility and removes duplication of data by documentation.

MongoDB increases productivity by simplifying development which reduces development time while still ensuring data integrity and easy deployment of applications. Further, MongoDB not only maintains many of the great features of a relational database — like indexes and dynamic queries, by changing the data model from relational to document-oriented, it provides many advantages, including greater agility through flexible schema and easier horizontal sociability.